CN114378529A - Spiral spike and processing technology thereof - Google Patents
Spiral spike and processing technology thereof Download PDFInfo
- Publication number
- CN114378529A CN114378529A CN202011118177.3A CN202011118177A CN114378529A CN 114378529 A CN114378529 A CN 114378529A CN 202011118177 A CN202011118177 A CN 202011118177A CN 114378529 A CN114378529 A CN 114378529A
- Authority
- CN
- China
- Prior art keywords
- semi
- treatment
- finished product
- metal wire
- shot blasting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 17
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 17
- 239000011574 phosphorus Substances 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 17
- 239000011593 sulfur Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000012188 paraffin wax Substances 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011265 semifinished product Substances 0.000 claims description 64
- 238000005422 blasting Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 35
- 238000005096 rolling process Methods 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 26
- 238000000576 coating method Methods 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 229910001868 water Inorganic materials 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 238000005282 brightening Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000001993 wax Substances 0.000 claims description 10
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 5
- 235000009496 Juglans regia Nutrition 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 235000019270 ammonium chloride Nutrition 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- 235000010338 boric acid Nutrition 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- -1 dodecyl alcohol ester Chemical class 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011664 nicotinic acid Substances 0.000 claims description 5
- 229960003512 nicotinic acid Drugs 0.000 claims description 5
- 235000001968 nicotinic acid Nutrition 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 5
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 5
- 239000004299 sodium benzoate Substances 0.000 claims description 5
- 235000010234 sodium benzoate Nutrition 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 235000002906 tartaric acid Nutrition 0.000 claims description 5
- 239000011975 tartaric acid Substances 0.000 claims description 5
- 235000020234 walnut Nutrition 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000011592 zinc chloride Substances 0.000 claims description 5
- 235000005074 zinc chloride Nutrition 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 235000014692 zinc oxide Nutrition 0.000 claims description 5
- 238000005246 galvanizing Methods 0.000 claims description 3
- 240000007049 Juglans regia Species 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 241000758789 Juglans Species 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
- E01B9/06—Railways spikes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a spiral spike and a processing technology thereof, and the formula comprises: the alloy comprises carbon, silicon, manganese, phosphorus, sulfur and molten iron, and the weight parts of the components are as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron; according to the invention, in the process of drawing the spiral spike for multiple times, the metal wire is coated by using the molten paraffin, so that the contact rate of oxygen in the air and the drawn metal wire is reduced, the probability of oxidation reaction of the metal wire and the oxygen in the air is reduced, and the quality of the spiral spike is improved.
Description
Technical Field
The invention relates to the technical field of spiral spike processing, in particular to a spiral spike and a processing technology thereof.
Background
The spiral spike is used for fixing the railway track, so that the railway track is better pressed on a railway roadbed. The spiral spike is a common railway accessory in railway track transportation, the production time of the railway accessory is earlier, so that the generation and the upgrade of the spiral spike are continuously carried out along with the continuous development of the railway track, along with the continuous construction of railways in China, the demand of the spiral spike is more and more, therefore, various spiral spikes appear on the market, the existing bolt spike is produced by continuously drawing a metal wire and other production processes in the production process, but in the repeated drawing process, the contact rate of the surface of the metal wire and oxygen in the air is increased, further the oxidation reaction of the metal wire is increased, the quality of the metal wire is reduced, the quality of the spiral spike is reduced, the spiral spike is usually required to be galvanized in the production process of the spiral spike, but the spiral spike after the galvanization has low corrosion resistance, thereby shortening the service life of the screw spike.
Disclosure of Invention
The invention aims to provide a spiral spike and a processing technology thereof, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a spiral spike comprises the following components: the alloy comprises carbon, silicon, manganese, phosphorus, sulfur and molten iron, and the weight parts of the components are as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron.
A processing technology of a spiral spike comprises the following steps of, step one, selecting and preparing; step two, drawing; step three, blanking; step four, cold heading; step five, rolling threads for one time; step six, rolling threads for the second time; step seven, removing oil; step eight, shot blasting; step nine, performing rust prevention treatment; step ten, checking; step eleven, packaging and warehousing;
in the first step, 0.15-0.2 parts of carbon, 0.15-0.2 parts of silicon, 0.4-0.5 parts of manganese, 0.01-0.02 parts of phosphorus, 0.015-0.025 parts of sulfur and 99.055-99.275 parts of molten iron are respectively selected according to the weight parts of the components, and then the selected raw materials are prepared into the needed crude metal wire rod for standby through a smelting mode;
in the second step, one end of the metal wire rod prepared in the first step is fixed, then the other end of the metal wire rod is subjected to traction treatment by a traction machine, the other end of the metal wire rod is subjected to drawing treatment sequentially through film holes with different pore sizes to obtain a finished metal wire rod with a required diameter, and the wire rod after drawing is immediately placed in molten paraffin for coating treatment and then subjected to next drawing treatment after each drawing treatment;
in the third step, the finished metal wire obtained in the second step is sheared by a shearing machine to obtain a required blank, and then the sheared blank is immediately placed in melted wax liquid for coating treatment;
in the fourth step, the blank obtained after the coating treatment in the third step is subjected to cold heading treatment on one end of the blank by using a cold heading machine, so that the cold heading part at one end of the center of the blank is separated from bulges to obtain coarse materials, and then the coarse materials are immediately placed in melted wax liquid for coating treatment;
in the fifth step, the coarse material obtained by coating in the fourth step is subjected to thread rolling treatment on one end of the coarse material by using a thread rolling machine;
in the sixth step, the other end of the coarse material processed in the fifth step is subjected to thread rolling treatment by a thread rolling machine to obtain a semi-finished product;
placing the semi-finished product obtained in the step six in the deoiling liquid, heating and stirring for 5-10min, standing for 10-15min after stirring is completed, taking out the deoiled semi-finished product, washing the surface of the semi-finished product by using a 10-15MPa water gun, and drying by using a drying box at 80-90 ℃ to ensure that no water stain is left on the surface of the semi-finished product;
in the eighth step, the semi-finished product obtained after drying in the seventh step is placed in a crawler-type shot blasting machine for shot blasting treatment, and then the shot blasting material remained on the surface of the semi-finished product is cleaned by carbon dioxide gas blown out by an air gun of the semi-finished product after shot blasting, so that the contact amount of the surface of the semi-finished product and oxygen is reduced;
in the ninth step, the semi-finished product after the air blowing treatment in the eighth step is placed in a galvanizing solution for electroplating rust prevention treatment, then natural drying is carried out, then a sealing agent is sprayed on the surface of the semi-finished product by a spray gun, and then natural drying is carried out, so that the spiral spike can be obtained;
in the above step ten, the screw spike obtained in the step nine is placed on a quality inspection table for inspection processing;
and step eleven, packaging the screw spike qualified in the step eleven and warehousing the screw spike.
According to the technical scheme, in the seventh step, the constant temperature in the deoiling liquid is 50-60 ℃.
According to the technical scheme, in the seventh step, the deoiling liquid is prepared by mixing sodium hydroxide, sodium sulfate and water according to the weight ratio of 1: 10.
According to the technical scheme, in the eighth step, the shot blasting material in the crawler-type shot blasting machine is a mixture of a plurality of ceramic micro powder, walnut sand, resin sand and steel sand.
According to the technical scheme, in the ninth step, the zinc plating solution is prepared by mixing ammonium chloride, zinc chloride, boric acid, zinc oxide, deionized water and a brightening agent according to the weight ratio of 6: 10: 8: 10: 70: 0.6, and the brightening agent is one of sodium benzoate and nicotinic acid.
According to the technical scheme, in the ninth step, the sealing agent is prepared by mixing water, phosphoric acid, aluminum powder, tartaric acid, epoxy resin and a film-forming aid according to the weight ratio of 40: 50: 2: 5: 20: 2, and the film-forming aid is dodecyl alcohol ester.
Compared with the prior art, the invention has the following beneficial effects: according to the spiral spike and the processing technology thereof, in the process of drawing the processed spiral spike for multiple times, the metal wire is coated by using the molten paraffin, so that the contact rate of oxygen in the air and the surface of the drawn metal wire is reduced, the probability of oxidation reaction of the metal wire and the oxygen in the air is reduced, and the quality of the spiral spike is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
example 1:
a spiral spike comprises the following components: the alloy comprises carbon, silicon, manganese, phosphorus, sulfur and molten iron, and the weight parts of the components are as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron.
A processing technology of a spiral spike comprises the following steps of, step one, selecting and preparing; step two, drawing; step three, blanking; step four, cold heading; step five, rolling threads for one time; step six, rolling threads for the second time; step seven, removing oil; step eight, shot blasting; step nine, performing rust prevention treatment; step ten, checking; step eleven, packaging and warehousing;
in the first step, 0.15 part of carbon, 0.15 part of silicon, 0.4 part of manganese, 0.01 part of phosphorus, 0.015 part of sulfur and 99.055 parts of molten iron are respectively selected according to the weight parts of the components, and then the selected raw materials are prepared into the needed crude metal wire rod for standby through a smelting mode;
in the second step, one end of the metal wire rod prepared in the first step is fixed, then the other end of the metal wire rod is subjected to traction treatment by a traction machine, the other end of the metal wire rod is subjected to drawing treatment sequentially through film holes with different pore sizes to obtain a finished metal wire rod with a required diameter, and the wire rod after drawing is immediately placed in molten paraffin for coating treatment and then subjected to next drawing treatment after each drawing treatment;
in the third step, the finished metal wire obtained in the second step is sheared by a shearing machine to obtain a required blank, and then the sheared blank is immediately placed in melted wax liquid for coating treatment;
in the fourth step, the blank obtained after the coating treatment in the third step is subjected to cold heading treatment on one end of the blank by using a cold heading machine, so that the cold heading part at one end of the center of the blank is separated from bulges to obtain coarse materials, and then the coarse materials are immediately placed in melted wax liquid for coating treatment;
in the fifth step, the coarse material obtained by coating in the fourth step is subjected to thread rolling treatment on one end of the coarse material by using a thread rolling machine;
in the sixth step, the other end of the coarse material processed in the fifth step is subjected to thread rolling treatment by a thread rolling machine to obtain a semi-finished product;
placing the semi-finished product obtained in the step six in the deoiling liquid, heating and stirring the semi-finished product for 5-10min, keeping the constant temperature in the deoiling liquid at 50-60 ℃, standing the semi-finished product for 10-15min after stirring is finished, taking out the deoiled semi-finished product, washing the surface of the semi-finished product by using a 10-15MPa water gun, and drying the surface of the semi-finished product by using a 80-90 ℃ drying box to ensure that no water stain is left on the surface of the semi-finished product, wherein the deoiling liquid is prepared by mixing sodium hydroxide, sodium sulfate and water according to the weight ratio of 1: 10;
in the eighth step, the semi-finished product obtained after drying in the seventh step is placed in a crawler-type shot blasting machine for shot blasting treatment, shot blasting materials in the crawler-type shot blasting machine are a mixture of a plurality of ceramic micro powder, walnut sand, resin sand and steel sand, and then the semi-finished product after shot blasting is cleaned by using carbon dioxide gas blown by an air gun to clean the shot blasting materials remained on the surface of the semi-finished product, and meanwhile, the contact amount of the surface of the semi-finished product and oxygen is reduced;
placing the semi-finished product subjected to the air blowing treatment in the step eight in a zinc plating solution for electroplating rust prevention treatment, then naturally drying, spraying a sealing agent on the surface of the semi-finished product by using a spray gun, and then naturally drying to obtain the spiral spike, wherein the zinc plating solution is prepared by mixing ammonium chloride, zinc chloride, boric acid, zinc oxide, deionized water and a brightening agent according to the weight ratio of 6: 10: 8: 10: 70: 0.6, the brightening agent is one of sodium benzoate and nicotinic acid, the sealing agent is prepared by mixing water, phosphoric acid, aluminum powder, tartaric acid, epoxy resin and a film-forming aid according to the weight ratio of 40: 50: 2: 5: 20: 2, and the film-forming aid is dodecyl alcohol ester;
in the above step ten, the screw spike obtained in the step nine is placed on a quality inspection table for inspection processing;
and step eleven, packaging the screw spike qualified in the step eleven and warehousing the screw spike.
Example 2:
a spiral spike comprises the following components: the alloy comprises carbon, silicon, manganese, phosphorus, sulfur and molten iron, and the weight parts of the components are as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron.
A processing technology of a spiral spike comprises the following steps of, step one, selecting and preparing; step two, drawing; step three, blanking; step four, cold heading; step five, rolling threads for one time; step six, rolling threads for the second time; step seven, removing oil; step eight, shot blasting; step nine, performing rust prevention treatment; step ten, checking; step eleven, packaging and warehousing;
in the first step, 0.18 part of carbon, 0.18 part of silicon, 0.45 part of manganese, 0.02 part of phosphorus, 0.020 part of sulfur and 99.115 parts of molten iron are respectively selected according to the weight parts of the components, and then the selected raw materials are prepared into the needed crude metal wire rod for later use in a smelting mode;
in the second step, one end of the metal wire rod prepared in the first step is fixed, then the other end of the metal wire rod is subjected to traction treatment by a traction machine, the other end of the metal wire rod is subjected to drawing treatment sequentially through film holes with different pore sizes to obtain a finished metal wire rod with a required diameter, and the wire rod after drawing is immediately placed in molten paraffin for coating treatment and then subjected to next drawing treatment after each drawing treatment;
in the third step, the finished metal wire obtained in the second step is sheared by a shearing machine to obtain a required blank, and then the sheared blank is immediately placed in melted wax liquid for coating treatment;
in the fourth step, the blank obtained after the coating treatment in the third step is subjected to cold heading treatment on one end of the blank by using a cold heading machine, so that the cold heading part at one end of the center of the blank is separated from bulges to obtain coarse materials, and then the coarse materials are immediately placed in melted wax liquid for coating treatment;
in the fifth step, the coarse material obtained by coating in the fourth step is subjected to thread rolling treatment on one end of the coarse material by using a thread rolling machine;
in the sixth step, the other end of the coarse material processed in the fifth step is subjected to thread rolling treatment by a thread rolling machine to obtain a semi-finished product;
placing the semi-finished product obtained in the step six in the deoiling liquid, heating and stirring the semi-finished product for 5-10min, keeping the constant temperature in the deoiling liquid at 50-60 ℃, standing the semi-finished product for 10-15min after stirring is finished, taking out the deoiled semi-finished product, washing the surface of the semi-finished product by using a 10-15MPa water gun, and drying the surface of the semi-finished product by using a 80-90 ℃ drying box to ensure that no water stain is left on the surface of the semi-finished product, wherein the deoiling liquid is prepared by mixing sodium hydroxide, sodium sulfate and water according to the weight ratio of 1: 10;
in the eighth step, the semi-finished product obtained after drying in the seventh step is placed in a crawler-type shot blasting machine for shot blasting treatment, shot blasting materials in the crawler-type shot blasting machine are a mixture of a plurality of ceramic micro powder, walnut sand, resin sand and steel sand, and then the semi-finished product after shot blasting is cleaned by using carbon dioxide gas blown by an air gun to clean the shot blasting materials remained on the surface of the semi-finished product, and meanwhile, the contact amount of the surface of the semi-finished product and oxygen is reduced;
placing the semi-finished product subjected to the air blowing treatment in the step eight in a zinc plating solution for electroplating rust prevention treatment, then naturally drying, spraying a sealing agent on the surface of the semi-finished product by using a spray gun, and then naturally drying to obtain the spiral spike, wherein the zinc plating solution is prepared by mixing ammonium chloride, zinc chloride, boric acid, zinc oxide, deionized water and a brightening agent according to the weight ratio of 6: 10: 8: 10: 70: 0.6, the brightening agent is one of sodium benzoate and nicotinic acid, the sealing agent is prepared by mixing water, phosphoric acid, aluminum powder, tartaric acid, epoxy resin and a film-forming aid according to the weight ratio of 40: 50: 2: 5: 20: 2, and the film-forming aid is dodecyl alcohol ester;
in the above step ten, the screw spike obtained in the step nine is placed on a quality inspection table for inspection processing;
and step eleven, packaging the screw spike qualified in the step eleven and warehousing the screw spike.
Example 3:
a spiral spike comprises the following components: the alloy comprises carbon, silicon, manganese, phosphorus, sulfur and molten iron, and the weight parts of the components are as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron.
A processing technology of a spiral spike comprises the following steps of, step one, selecting and preparing; step two, drawing; step three, blanking; step four, cold heading; step five, rolling threads for one time; step six, rolling threads for the second time; step seven, removing oil; step eight, shot blasting; step nine, performing rust prevention treatment; step ten, checking; step eleven, packaging and warehousing;
in the first step, 0.2 part of carbon, 0.2 part of silicon, 0.5 part of manganese, 0.02 part of phosphorus, 0.025 part of sulfur and 99.275 parts of molten iron are respectively selected according to the weight parts of the components, and then the selected raw materials are prepared into the needed crude metal wire rod for standby through a smelting mode;
in the second step, one end of the metal wire rod prepared in the first step is fixed, then the other end of the metal wire rod is subjected to traction treatment by a traction machine, the other end of the metal wire rod is subjected to drawing treatment sequentially through film holes with different pore sizes to obtain a finished metal wire rod with a required diameter, and the wire rod after drawing is immediately placed in molten paraffin for coating treatment and then subjected to next drawing treatment after each drawing treatment;
in the third step, the finished metal wire obtained in the second step is sheared by a shearing machine to obtain a required blank, and then the sheared blank is immediately placed in melted wax liquid for coating treatment;
in the fourth step, the blank obtained after the coating treatment in the third step is subjected to cold heading treatment on one end of the blank by using a cold heading machine, so that the cold heading part at one end of the center of the blank is separated from bulges to obtain coarse materials, and then the coarse materials are immediately placed in melted wax liquid for coating treatment;
in the fifth step, the coarse material obtained by coating in the fourth step is subjected to thread rolling treatment on one end of the coarse material by using a thread rolling machine;
in the sixth step, the other end of the coarse material processed in the fifth step is subjected to thread rolling treatment by a thread rolling machine to obtain a semi-finished product;
placing the semi-finished product obtained in the step six in the deoiling liquid, heating and stirring the semi-finished product for 5-10min, keeping the constant temperature in the deoiling liquid at 50-60 ℃, standing the semi-finished product for 10-15min after stirring is finished, taking out the deoiled semi-finished product, washing the surface of the semi-finished product by using a 10-15MPa water gun, and drying the surface of the semi-finished product by using a 80-90 ℃ drying box to ensure that no water stain is left on the surface of the semi-finished product, wherein the deoiling liquid is prepared by mixing sodium hydroxide, sodium sulfate and water according to the weight ratio of 1: 10;
in the eighth step, the semi-finished product obtained after drying in the seventh step is placed in a crawler-type shot blasting machine for shot blasting treatment, shot blasting materials in the crawler-type shot blasting machine are a mixture of a plurality of ceramic micro powder, walnut sand, resin sand and steel sand, and then the semi-finished product after shot blasting is cleaned by using carbon dioxide gas blown by an air gun to clean the shot blasting materials remained on the surface of the semi-finished product, and meanwhile, the contact amount of the surface of the semi-finished product and oxygen is reduced;
placing the semi-finished product subjected to the air blowing treatment in the step eight in a zinc plating solution for electroplating rust prevention treatment, then naturally drying, spraying a sealing agent on the surface of the semi-finished product by using a spray gun, and then naturally drying to obtain the spiral spike, wherein the zinc plating solution is prepared by mixing ammonium chloride, zinc chloride, boric acid, zinc oxide, deionized water and a brightening agent according to the weight ratio of 6: 10: 8: 10: 70: 0.6, the brightening agent is one of sodium benzoate and nicotinic acid, the sealing agent is prepared by mixing water, phosphoric acid, aluminum powder, tartaric acid, epoxy resin and a film-forming aid according to the weight ratio of 40: 50: 2: 5: 20: 2, and the film-forming aid is dodecyl alcohol ester;
in the above step ten, the screw spike obtained in the step nine is placed on a quality inspection table for inspection processing;
and step eleven, packaging the screw spike qualified in the step eleven and warehousing the screw spike.
The screw spikes obtained in the above examples were examined separately and the data obtained are as follows:
| example 1 | Example 2 | Example 3 | |
| Tensile strength | 470MPa | 473MPa | 480MPa |
Based on the above, the method has the advantages that the molten paraffin is used for coating the surface of the metal wire in the process of processing and drawing the spiral spike, so that the contact rate of oxygen and the metal wire is sufficiently reduced, the reaction probability of the metal wire and the oxygen is further reduced, the quality of the spiral spike is improved, the sealing agent is sprayed on the surface of the spiral spike after the spiral spike is subjected to galvanizing treatment, the corrosion resistance of the spiral spike is improved by using the sealing agent remaining on the surface of the spiral spike, and the service life of the spiral spike is further prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A spiral spike comprises the following components: carbon, silicon, manganese, phosphorus, sulfur and molten iron, which is characterized in that: the weight parts of the components are respectively as follows: 0.15-0.2 part of carbon, 0.15-0.2 part of silicon, 0.4-0.5 part of manganese, 0.01-0.02 part of phosphorus, 0.015-0.025 part of sulfur and 99.055-99.275 parts of molten iron.
2. A processing technology of a spiral spike comprises the following steps of, step one, selecting and preparing; step two, drawing; step three, blanking; step four, cold heading; step five, rolling threads for one time; step six, rolling threads for the second time; step seven, removing oil; step eight, shot blasting; step nine, performing rust prevention treatment; step ten, checking; step eleven, packaging and warehousing; the method is characterized in that:
in the first step, 0.15-0.2 parts of carbon, 0.15-0.2 parts of silicon, 0.4-0.5 parts of manganese, 0.01-0.02 parts of phosphorus, 0.015-0.025 parts of sulfur and 99.055-99.275 parts of molten iron are respectively selected according to the weight parts of the components, and then the selected raw materials are prepared into the needed crude metal wire rod for standby through a smelting mode;
in the second step, one end of the metal wire rod prepared in the first step is fixed, then the other end of the metal wire rod is subjected to traction treatment by a traction machine, the other end of the metal wire rod is subjected to drawing treatment sequentially through film holes with different pore sizes to obtain a finished metal wire rod with a required diameter, and the wire rod after drawing is immediately placed in molten paraffin for coating treatment and then subjected to next drawing treatment after each drawing treatment;
in the third step, the finished metal wire obtained in the second step is sheared by a shearing machine to obtain a required blank, and then the sheared blank is immediately placed in melted wax liquid for coating treatment;
in the fourth step, the blank obtained after the coating treatment in the third step is subjected to cold heading treatment on one end of the blank by using a cold heading machine, so that the cold heading part at one end of the center of the blank is separated from bulges to obtain coarse materials, and then the coarse materials are immediately placed in melted wax liquid for coating treatment;
in the fifth step, the coarse material obtained by coating in the fourth step is subjected to thread rolling treatment on one end of the coarse material by using a thread rolling machine;
in the sixth step, the other end of the coarse material processed in the fifth step is subjected to thread rolling treatment by a thread rolling machine to obtain a semi-finished product;
placing the semi-finished product obtained in the step six in the deoiling liquid, heating and stirring for 5-10min, standing for 10-15min after stirring is completed, taking out the deoiled semi-finished product, washing the surface of the semi-finished product by using a 10-15MPa water gun, and drying by using a drying box at 80-90 ℃ to ensure that no water stain is left on the surface of the semi-finished product;
in the eighth step, the semi-finished product obtained after drying in the seventh step is placed in a crawler-type shot blasting machine for shot blasting treatment, and then the shot blasting material remained on the surface of the semi-finished product is cleaned by carbon dioxide gas blown out by an air gun of the semi-finished product after shot blasting, so that the contact amount of the surface of the semi-finished product and oxygen is reduced;
in the ninth step, the semi-finished product after the air blowing treatment in the eighth step is placed in a galvanizing solution for electroplating rust prevention treatment, then natural drying is carried out, then a sealing agent is sprayed on the surface of the semi-finished product by a spray gun, and then natural drying is carried out, so that the spiral spike can be obtained;
in the above step ten, the screw spike obtained in the step nine is placed on a quality inspection table for inspection processing;
and step eleven, packaging the screw spike qualified in the step eleven and warehousing the screw spike.
3. The process for manufacturing a screw spike according to claim 2, wherein: in the seventh step, the constant temperature in the deoiling liquid is 50-60 ℃.
4. The process for manufacturing a screw spike according to claim 2, wherein: in the seventh step, the deoiling liquid is prepared by mixing sodium hydroxide, sodium sulfate and water according to the weight ratio of 1: 10.
5. The process for manufacturing a screw spike according to claim 2, wherein: and in the step eight, the shot blasting material in the crawler type shot blasting machine is a mixture of a plurality of ceramic micro powder, walnut sand, resin sand and steel sand.
6. The process for manufacturing a screw spike according to claim 2, wherein: in the ninth step, the zinc plating solution is prepared by mixing ammonium chloride, zinc chloride, boric acid, zinc oxide, deionized water and a brightening agent according to the weight ratio of 6: 10: 8: 10: 70: 0.6, and the brightening agent is one of sodium benzoate and nicotinic acid.
7. The process for manufacturing a screw spike according to claim 2, wherein: in the ninth step, the sealing agent is prepared by mixing water, phosphoric acid, aluminum powder, tartaric acid, epoxy resin and a film-forming aid according to the weight ratio of 40: 50: 2: 5: 20: 2, and the film-forming aid is dodecyl alcohol ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118177.3A CN114378529B (en) | 2020-10-19 | 2020-10-19 | Screw spike and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118177.3A CN114378529B (en) | 2020-10-19 | 2020-10-19 | Screw spike and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114378529A true CN114378529A (en) | 2022-04-22 |
| CN114378529B CN114378529B (en) | 2024-09-03 |
Family
ID=81193117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011118177.3A Active CN114378529B (en) | 2020-10-19 | 2020-10-19 | Screw spike and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114378529B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141504A (en) * | 1988-11-18 | 1990-05-30 | Sumitomo Electric Ind Ltd | Manufacture of drill |
| CN1548651A (en) * | 2003-05-23 | 2004-11-24 | 福州铁路分局郭坑工务修制厂 | Anticorrosive wear-resistant spiral dog nail and its production process |
| JP2009030085A (en) * | 2007-07-25 | 2009-02-12 | National Institute For Materials Science | Method for manufacturing non-heat-treated small screw |
| KR20100096827A (en) * | 2009-02-25 | 2010-09-02 | 현대제철 주식회사 | Microalloy steel for 10t bolt, and method for producing the same |
| CN102501021A (en) * | 2011-11-10 | 2012-06-20 | 深圳航空标准件有限公司 | Machining method for screws of dovetail grooves and cold-upsetting die of machining method |
| JP3186881U (en) * | 2013-08-05 | 2013-10-31 | 三男 山▲崎▼ | Wire drawing machine in wire drawing equipment |
| US8683842B1 (en) * | 2010-03-24 | 2014-04-01 | Norfolk Southern Corporation | Railroad spikes and methods of making the same |
| KR101385930B1 (en) * | 2013-09-02 | 2014-04-16 | (주)씨엠티 | Manufacturing method of insert screw |
| CN105195981A (en) * | 2014-05-27 | 2015-12-30 | 遵义林棣科技发展有限公司 | Preparation method for conical-body and square-head bolt |
| CN105666063A (en) * | 2016-03-28 | 2016-06-15 | 海盐光大标准件有限公司 | Processing process for fastening bolt of highway guardrail |
| CN109097688A (en) * | 2018-09-10 | 2018-12-28 | 江苏天泽教育咨询有限公司 | A kind of environment protection type high-strength metal material and its production technology |
| CN109487643A (en) * | 2018-09-14 | 2019-03-19 | 宁波博睿思特种材料科技有限公司 | Railway low-cost corrosion-resistant screw spike and its preparation process |
| CN109531063A (en) * | 2018-11-27 | 2019-03-29 | 重庆旺达汽车零部件有限公司 | A kind of processing method of high-strength bolts |
| CN110157991A (en) * | 2019-05-29 | 2019-08-23 | 苏州誉高紧固系统有限公司 | A kind of cold-heading fastener nut high temperature resistant ferritic stainless steel and its production technology |
| WO2019223209A1 (en) * | 2018-05-24 | 2019-11-28 | 南京钢铁股份有限公司 | 500 mpa-grade engineering machinery steel and manufacturing method therefor |
-
2020
- 2020-10-19 CN CN202011118177.3A patent/CN114378529B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141504A (en) * | 1988-11-18 | 1990-05-30 | Sumitomo Electric Ind Ltd | Manufacture of drill |
| CN1548651A (en) * | 2003-05-23 | 2004-11-24 | 福州铁路分局郭坑工务修制厂 | Anticorrosive wear-resistant spiral dog nail and its production process |
| JP2009030085A (en) * | 2007-07-25 | 2009-02-12 | National Institute For Materials Science | Method for manufacturing non-heat-treated small screw |
| KR20100096827A (en) * | 2009-02-25 | 2010-09-02 | 현대제철 주식회사 | Microalloy steel for 10t bolt, and method for producing the same |
| US8683842B1 (en) * | 2010-03-24 | 2014-04-01 | Norfolk Southern Corporation | Railroad spikes and methods of making the same |
| CN102501021A (en) * | 2011-11-10 | 2012-06-20 | 深圳航空标准件有限公司 | Machining method for screws of dovetail grooves and cold-upsetting die of machining method |
| JP3186881U (en) * | 2013-08-05 | 2013-10-31 | 三男 山▲崎▼ | Wire drawing machine in wire drawing equipment |
| KR101385930B1 (en) * | 2013-09-02 | 2014-04-16 | (주)씨엠티 | Manufacturing method of insert screw |
| CN105195981A (en) * | 2014-05-27 | 2015-12-30 | 遵义林棣科技发展有限公司 | Preparation method for conical-body and square-head bolt |
| CN105666063A (en) * | 2016-03-28 | 2016-06-15 | 海盐光大标准件有限公司 | Processing process for fastening bolt of highway guardrail |
| WO2019223209A1 (en) * | 2018-05-24 | 2019-11-28 | 南京钢铁股份有限公司 | 500 mpa-grade engineering machinery steel and manufacturing method therefor |
| CN109097688A (en) * | 2018-09-10 | 2018-12-28 | 江苏天泽教育咨询有限公司 | A kind of environment protection type high-strength metal material and its production technology |
| CN109487643A (en) * | 2018-09-14 | 2019-03-19 | 宁波博睿思特种材料科技有限公司 | Railway low-cost corrosion-resistant screw spike and its preparation process |
| CN109531063A (en) * | 2018-11-27 | 2019-03-29 | 重庆旺达汽车零部件有限公司 | A kind of processing method of high-strength bolts |
| CN110157991A (en) * | 2019-05-29 | 2019-08-23 | 苏州誉高紧固系统有限公司 | A kind of cold-heading fastener nut high temperature resistant ferritic stainless steel and its production technology |
Non-Patent Citations (1)
| Title |
|---|
| 郭晓明;: "关于缩径机――卧式液压机的两个应用", 产业与科技论坛, no. 13, 15 July 2013 (2013-07-15), pages 87 - 88 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114378529B (en) | 2024-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5764672B2 (en) | High corrosion resistant hot dip galvanized steel sheet and method for producing the same | |
| EP3561138A1 (en) | Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance and method of manufacturing same | |
| CN105817839A (en) | Production technical process of zinc-steel guardrails | |
| CN103774077A (en) | Continuous single-dip process for galvanization of steel long products into Zn-Al-Mg alloys | |
| EP2848715A1 (en) | Method for producing a steel component with an anti-corrosive metal coating | |
| CN101045980A (en) | High aluminium zinc alloy hot dip coating process for iron steel product | |
| CN102029307B (en) | Production process for zinc cladding steel for cable self-supporting wire | |
| CN103276383B (en) | A kind of Environmental protection type thread steel surface antirust treatment agent | |
| CN107326353A (en) | For the galvanized steel plain sheet rapid phosphorization agent of color coating and its application | |
| CN205703254U (en) | The steel guardrail production line of epoxy zinc-base polyester composite coating | |
| CN107513681A (en) | A kind of hot-dip galvanizing technique | |
| CN106702101A (en) | Preparation technology of galvanized steel sheet with continuous hot-dip spangles | |
| CN114378529B (en) | Screw spike and processing technology thereof | |
| CN109825183A (en) | A kind of super hardening process of die surface | |
| CN104480369A (en) | Electro-galvanized sheet for liquid crystal module and preparation method of electro-galvanized sheet | |
| CN109881096A (en) | A kind of 800MPa grades of one-side electroplating zinc phase-change induced plastic steel plate and preparation method thereof | |
| CN106282826B (en) | A kind of preparation method of seamless pipe for high-pressure pipe connector | |
| KR102500481B1 (en) | Preparing method for cold rolled steel sheet with excellent in phosphate treatment property and cold rolled steel sheet with excellent in phosphate treatment property | |
| CN100478495C (en) | Low temperature fast phosphating solution for drawing wire and its phosphating process | |
| CN112893040A (en) | Spraying method based on uniformity | |
| CN113978173A (en) | Drawn UV color-coated sheet and preparation method thereof | |
| CN107058931B (en) | A kind of production method of color painted steel strip or steel band | |
| CN110747475A (en) | Antirust agent for manufacturing street lamp pole and preparation method thereof | |
| KR101325400B1 (en) | Semi-alloyed hot-rolled hot-dip galvanizing steel sheet and method for manufacturing the same | |
| CN115287532B (en) | Coating-free high-phosphorus high-performance weather-resistant steel and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |