CN116219290A - High-carbon steel wire for greenhouse clamp spring and manufacturing method thereof - Google Patents
High-carbon steel wire for greenhouse clamp spring and manufacturing method thereof Download PDFInfo
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- CN116219290A CN116219290A CN202310165348.5A CN202310165348A CN116219290A CN 116219290 A CN116219290 A CN 116219290A CN 202310165348 A CN202310165348 A CN 202310165348A CN 116219290 A CN116219290 A CN 116219290A
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- 229910000677 High-carbon steel Inorganic materials 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000005246 galvanizing Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 229910001562 pearlite Inorganic materials 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical group OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000005536 corrosion prevention Methods 0.000 claims 1
- 238000005491 wire drawing Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000006032 tissue transformation Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Springs (AREA)
Abstract
The utility model relates to a high-carbon steel wire for a greenhouse clamp spring and a manufacturing method thereof, wherein the steel comprises the following chemical components in percentage by weight: 0.59 to 0.86 percent of C, 0.20 to 0.55 percent of Si, 0.60 to 1.20 percent of Mn, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S, 0.002 to 0.006 percent of B and 0.03 to 0.05 percent of Ti; the balance being Fe and unavoidable impurities. The hot rolled high carbon steel wire rod is used as the raw material, the drawability of the wire rod is improved through special chemical components and a controlled rolling and cooling process, the mechanical property and the technological property of a finished steel wire are guaranteed, the steel wire with required strength and plasticity is produced through drawing by a wire drawing machine, surface galvanizing is performed through hot galvanizing equipment, corrosion of air and rainwater is prevented, and finally the high carbon steel wire with a trapezoid structure for a greenhouse clamp spring is produced through forming equipment.
Description
Technical Field
The utility model belongs to the technical fields of wire rod rolling, steel wire drawing and forming, and particularly relates to a high-carbon steel wire for a greenhouse clamp spring and a manufacturing method thereof.
Background
The high-carbon steel wire for the greenhouse clamp spring is a special-shaped steel wire which is matched with a greenhouse clamping groove to fix a greenhouse film. The high-carbon steel wire for the greenhouse clamp spring has the advantages of high strength, good plasticity, fatigue resistance, easy bending, good corrosion resistance, smooth bent part and no edges, and can achieve the multiple requirements of well fixing the greenhouse film, resisting rainwater and atmospheric environment corrosion, and not damaging the film structure under the action of external force with larger wind force. Because the consumption of the steel wire for the greenhouse clamp spring is large, the production cost is considered on the basis of the performance requirement of the steel wire, and the economy is considered.
1) Chinese patent application No. CN201320155396.8 discloses a "greenhouse film clip spring", which mainly describes an elastic wire with serpentine bends and its specific dimensions. The mechanical property requirements of the steel wire and the production and manufacturing method are not mentioned.
2) Chinese patent application number CN201220210097.5 discloses a "clamp spring for enhancing end clamping force", which discloses an elastic wire with a bent shape, which can enhance end clamping force and prevent end from coming out. The mechanical properties of the elastic wire and the method of producing and manufacturing the same are not mentioned.
According to the utility model, through analyzing the performance requirements of the high-carbon steel wire for the greenhouse jump ring and considering the production cost of the steel wire, the high-carbon steel hot-rolled wire rod with the specification of phi 5.5-phi 6.5mm and the carbon content of 0.59-0.86% is selected according to the diameter, strength and plasticity requirements of the steel wire, the wire rod tissue performance with excellent drawing performance is formed through a special rolling and cooling control process, the wire rod tissue performance is produced through drawing, galvanization and forming procedures, and the special-shaped steel wire product with excellent mechanical performance, good plasticity and high economy is produced through shearing according to the length of a specified size, and the high-carbon steel wire for the greenhouse jump ring has huge market application and wide prospect.
Disclosure of Invention
The utility model provides a high-carbon steel wire for a greenhouse jump ring and a manufacturing method thereof, wherein a high-carbon steel hot rolled wire rod is used as a raw material, the drawability of the wire rod is improved through special chemical components and a controlled rolling and cooling process, the mechanical property and the technological property of a finished product wire are ensured, the wire with required strength and plasticity is produced through drawing by a wire drawing machine, and the surface galvanization is carried out through hot galvanizing equipment so as to prevent the corrosion of air and rainwater, and finally the high-carbon steel wire with a trapezoid structure for the greenhouse jump ring is produced through forming equipment.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the high-carbon steel wire for the greenhouse clamp spring comprises the following chemical components in percentage by weight: 0.59 to 0.86 percent of C, 0.20 to 0.55 percent of Si, 0.60 to 1.20 percent of Mn, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S, 0.002 to 0.006 percent of B and 0.03 to 0.05 percent of Ti; the balance being Fe and unavoidable impurities.
The steel wire structure is superfine fibrous sorbite structure, and the interlayer spacing of pearlite sheets between the steel wire structure and the sorbite sheet is 0.03-0.10 mu m.
The specification of the steel wire is phi 1.8-phi 2.5mm.
The steel wire is galvanized steel wire with trapezoidal press bending.
The tensile strength of the steel wire is 1800 MPa-2000 MPa, the torsion times are more than or equal to 25 times, and the repeated bending times are more than or equal to 14 times.
The addition amount (weight percentage) of each element in the utility model is selected and the function is described as follows:
c forms a compound cementite with iron. The carbon content in the steel is increased, the cementite content is increased, the hardness and the strength of the steel are improved, the wear resistance can be improved, and the plasticity and the toughness of the steel are reduced along with the increase of the carbon content. The amount of C added in the wire rod of the present utility model is limited to 0.59 to 0.86%.
Si is added to steel as a deoxidizer, and the strength and hardness of the steel can be increased, because the Si content is too high to act similarly to the C content, and the toughness of the steel bar is lowered, and the Si addition amount is limited to 0.20-0.55%.
Mn can improve the strength and wear resistance of steel, but too high a content lowers the plasticity and toughness of steel, so the content is moderate, and the Mn component is defined as 0.60% -1.20% in the utility model.
P and S are harmful elements which can decrease the plasticity and toughness of the steel, so that the smaller the content, the better.
The B has extremely strong capability of improving hardenability, can improve the compactness and hot rolling performance of the steel, improves the strength of the steel, can well eliminate strain aging generated during cold working of the steel, ensures that the steel has good deformation effect in the drawing and forming processes, and can save a large amount of precious alloy elements by adding a small amount of B without breaking wires. The content of B is limited to 0.002% -0.006%.
Ti can inhibit the growth of austenite grains in the hot rolling process, thereby achieving the purpose of refining grains and improving performance, stabilizing the structure of steel and improving the strength and toughness of the structure. The Ti is cheaper than other alloy elements such as Nb, V and the like, so that the utility model has higher economic value, and the Ti content is limited to 0.03-0.05%.
A manufacturing method of a high-carbon steel wire for a greenhouse clamp spring comprises the following steps:
1) Heating a steel billet: the heating temperature of the continuous casting square billet (155-185 mm is 9500-11500 mm) is 1100-1200 ℃, and the temperature is kept for 1.5-2.5 hours; the heating temperature and the heat preservation time can enable alloy elements such as Ti, B and the like in steel to be better dissolved in the steel, and the components of the steel billet to be uniform. The excessively low temperature can increase the deformation resistance of the steel billet, the rolling specification is difficult to control, and the phase change of a cooling structure after rolling is not facilitated; excessive temperature can cause bending deformation of the billet in the hearth, which is unfavorable for rolling or overheat or even overburning.
2) Wire rod rolling and cooling control: the initial rolling temperature is 940-1080 ℃, the final rolling temperature is 880-970 ℃, the spinning temperature is 850-900 ℃, the cooling is controlled by adopting a loose coil water bath process after spinning, the water temperature is above 95 ℃, the water bath temperature of the wire rod is 300-400 ℃, and the tissue transformation is completed. The wire rod adopts low-temperature rolling to refine the size of pearlite and improve the bending property of the steel wire. After spinning, cooling is controlled by adopting a hot water bath process of a loose coil close to isothermal transformation, the spacing between pearlite sheets of the wire rod is controlled to be 0.15-0.25 mu m, and the drawing performance of the wire rod and the plasticity of the steel wire are improved. The diameter of the wire rod is 5.0-8.5 mm.
3) Wire rod surface descaling (removal of scale) and coating treatment: the wire rod produced by adopting the scattered coil water bath cooling process close to isothermal transformation has less contact with oxygen in air in the phase transformation and cooling processes, the FeO component proportion in the surface iron scale is higher and can reach more than 70%, the iron scale is completely wrapped on the surface of the steel wire, and the iron scale on the surface of the wire rod can be enabled to fall off in a sheet by utilizing mechanical shelling equipment, so that the wire rod is very easy to remove, and is economical and environment-friendly. Because FeO has loose and porous texture, is easy to react with hydrochloric acid, and is easy to remove by adopting an acid washing process to treat iron scales. Immersing the wire rod into phosphating solution for phosphating coating treatment;
4) Drawing a steel wire: the utility model can select the specification and tensile strength of the steel wire according to the clamping groove and the greenhouse scale at will, and the steel wire is drawn by a wire drawing machine, wherein the drawing passes are 10-16, and the total compression rate is controlled to be 86% -93%. The specification of the drawn steel wire is phi 1.8-phi 2.5mm, the tensile strength is 1800-2000 MPa, the torsion times are more than or equal to 25 times, the repeated bending times are more than or equal to 14 times, and the lamellar spacing of pearlite is 0.03-0.10 mu m. The mechanical property is better than that of the common wire rod drawn steel wire.
5) Zinc plating antiseptic treatment is carried out on the drawn steel wire in a hot galvanizing mode, the zinc temperature is controlled to be 430-460 ℃, and the zinc dipping time is properly adjusted according to different specifications of the steel wireFor 7-18 s, the zinc loading amount is 160-200 g/m 2 。
6) And (3) steel wire forming: the galvanized steel wire is extruded and formed by a pair of rollers with trapezoidal sawtooth grooves, and cut according to the specified length, and the finally formed steel wire is the galvanized steel wire with a certain length and trapezoidal press bending.
7) And (3) bending the end: in order to avoid the two ends of the steel wire from stabbing the greenhouse film, the two ends of the fixed-length steel wire need to be polished and bent, and the damage of the sharp end part to the greenhouse film is avoided.
The utility model is to ensure the good drawing performance and high strength and plasticity requirements of the steel wire in the selection of the wire rod components, and to properly add B and Ti on the basis of the components of the medium and high carbon steel in consideration of the economical efficiency of the steel wire production. The steel wire with higher strength can be obtained by the large compression ratio drawing treatment of the medium and high carbon steel wire rods, the steel wire strength can exceed 1800MPa, a small amount of B is added into the steel, the compactness and hot rolling performance of the steel can be improved, the strength is improved, the strain aging generated by cold working of the steel can be well eliminated, the deformation effect of the steel in the drawing and forming processes is good, and the wire breakage is avoided; ti can refine grains, so that the structure of the hot rolled wire rod is fine, the hot rolled wire rod has excellent strength and toughness, the wire rod component can be smoothly formed in subsequent drawing processing, the finished steel wire has good plasticity, the torsion times are more than or equal to 25 times, the repeated bending times are more than or equal to 14 times, and the intermediate heat treatment link in the steel wire production process can be completely canceled, thereby achieving the purposes of energy conservation, environmental protection and cost reduction.
Compared with the prior art, the utility model has the beneficial effects that:
1) The economy of the greenhouse clamp spring is fully considered by the steel wire components, the low-alloy medium-high carbon steel wire rod is selected as the raw material, the process and the cost can be saved on the premise of being most economical, and the steel wire for the greenhouse clamp spring with excellent mechanical property can be produced.
2) The utility model obtains excellent hot rolled wire rod structure through special heating and controlled rolling and cooling processes, can improve the mechanical property of the drawn steel wire, can achieve the structure property and mechanical property of the hot rolled wire rod directly drawn steel wire, and omits the heat treatment link of steel wire production.
3) The utility model uses the loose coil water bath process to replace the stell Mo Feng cold process for producing the conventional hot rolled wire rod, thereby eliminating the poor same-circle performance of the hot rolled wire rod. The strength and the plasticity of the drawn steel wire can well meet the requirements of a greenhouse clamp spring, and the performance of the whole steel wire is uniform and stable.
4) The utility model selects reasonable drawing pass and total compression ratio, can cancel intermediate heat treatment link in the steel wire drawing process, directly draw the hot rolled wire rod into finished steel wire, and save production process and energy consumption. The strength and toughness of the finished steel wire can meet the requirements of greenhouse jump ring steel wires.
5) The utility model selects hot galvanizing to carry out coating, can generate a Zn-Fe alloy layer on the surface of the steel wire, so that the zinc layer is more tightly combined with the steel wire, the steel wire does not fall off the skin, and no plating leakage occurs, thereby improving the rainwater and atmospheric corrosion resistance of the steel wire, and having better corrosion resistance than the conventional plastic coated product. In addition, the drawn steel wire can be tempered at a low temperature through a hot galvanizing process, and the internal stress of the drawn steel wire is eliminated.
6) The steel wire is mainly used for being matched with the greenhouse clamping groove to fix the special-shaped steel wire clamp spring of the greenhouse film, and can meet the requirements of fixing the greenhouse film and not damaging the film structure under the influence of larger external force.
Drawings
Fig. 1 is a schematic view of steel wire extrusion by twin rolls.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The following are the production processes of the present utility model corresponding to the respective chemical components of the comparative examples. Wherein, table 1 is the specific component design of the high-carbon steel wire embodiment for the greenhouse jump ring of the comparative example and the high-carbon steel wire embodiment for the greenhouse jump ring of the utility model, table 2 is the hot rolling production heating and cooling control process of the high-carbon steel wire embodiment for the greenhouse jump ring of the comparative example and the high-carbon steel wire embodiment for the greenhouse jump ring of the utility model, table 3 is the steel wire drawing galvanization process of the high-carbon steel wire embodiment for the greenhouse jump ring of the comparative example and the high-carbon steel wire embodiment for the greenhouse jump ring of the utility model, and table 4 is the mechanical property test result of the high-carbon steel wire embodiment for the greenhouse jump ring of the utility model.
TABLE 1 specific chemical composition
TABLE 2 wire rod heating and controlled Rolling and Cooling Process conditions
TABLE 3 Steel wire drawing production Process conditions
TABLE 4 Steel wire Performance test results
Claims (10)
1. The high-carbon steel wire for the greenhouse clamp spring is characterized by comprising the following chemical components in percentage by weight: 0.59 to 0.86 percent of C, 0.20 to 0.55 percent of Si, 0.60 to 1.20 percent of Mn, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S, 0.002 to 0.006 percent of B and 0.03 to 0.05 percent of Ti; the balance being Fe and unavoidable impurities.
2. The high carbon steel wire for a greenhouse jump ring of claim 1, wherein the steel wire structure is a fibrous sorbite structure, and the pearlite lamellar spacing therebetween is 0.03-0.10 μm.
3. The high-carbon steel wire for the greenhouse clamp spring according to claim 1, wherein the steel wire has the specification of phi 1.8-phi 2.5mm.
4. A high carbon steel wire for a greenhouse clamp spring according to any one of claims 1-3, characterized in that the steel wire is a galvanized steel wire with trapezoidal press bends.
5. The high-carbon steel wire for greenhouse jump rings of claim 1, wherein the tensile strength of the steel wire is 1800 MPa-2000 MPa, the number of twists is more than or equal to 25 times, and the number of repeated bends is more than or equal to 14 times.
6. A method for manufacturing a high carbon steel wire for a greenhouse jump ring according to claims 1-5, characterized in that the method comprises:
1) Heating a steel billet: the heating temperature of the continuous casting blank is 1100-1200 ℃, and the heat preservation is carried out for 1.5-2.5 hours;
2) Wire rod rolling and cooling control: the wire rod is rolled at a low temperature, the initial rolling temperature is 940-1080 ℃, the final rolling temperature is 880-970 ℃, the wire-laying temperature is 850-900 ℃, the cooling is controlled to adopt a loose coil water bath process after wire laying, the water temperature is above 95 ℃, and the wire rod water-out temperature is 300-400 ℃; the diameter of the wire rod is 5.0-8.5 mm;
3) Drawing a steel wire: the drawing passes are 10-16, and the total compression rate is controlled to be 86-93%.
7. The method for manufacturing a high-carbon steel wire for a greenhouse jump ring according to claim 6, wherein the continuous casting billet is a square billet of 155-185 mm by 9500-11500 mm.
8. The method for manufacturing the high-carbon steel wire for the greenhouse clamp spring, which is disclosed in claim 6, is characterized in that the wire rod surface descaling and coating treatment modes are as follows: and (3) removing iron scales on the surface of the wire rod by mechanical shelling or hydrochloric acid washing, and immersing the wire rod in phosphating solution for phosphating coating treatment.
9. The method for manufacturing a high-carbon steel wire for a greenhouse jump ring of claim 6, wherein the drawn steel wire isZinc plating and corrosion prevention treatment is carried out by adopting a hot galvanizing mode, the zinc temperature is controlled to be 430 ℃ to 460 ℃, the zinc dipping time is 7 to 18s, and the zinc loading amount is 160 to 200g/m 2 。
10. The method for manufacturing a high carbon steel wire for a greenhouse jump ring according to claim 9, wherein the galvanized steel wire is extruded by a pair of rollers with trapezoidal saw tooth grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165348.5A CN116219290A (en) | 2023-02-24 | 2023-02-24 | High-carbon steel wire for greenhouse clamp spring and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165348.5A CN116219290A (en) | 2023-02-24 | 2023-02-24 | High-carbon steel wire for greenhouse clamp spring and manufacturing method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165716A (en) * | 2017-12-30 | 2018-06-15 | 江阴兴澄合金材料有限公司 | A kind of online EDC water-baths toughening processing method of high intensity bridge cable zinc-coated wire gren rod |
| KR102131137B1 (en) * | 2019-05-21 | 2020-07-07 | 대원강업주식회사 | Spring Manufactured by Tempering Process Omitting |
| CN111549211A (en) * | 2020-05-13 | 2020-08-18 | 邢台钢铁有限责任公司 | Rolling method of micro-boron high-carbon steel wire rod |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165716A (en) * | 2017-12-30 | 2018-06-15 | 江阴兴澄合金材料有限公司 | A kind of online EDC water-baths toughening processing method of high intensity bridge cable zinc-coated wire gren rod |
| KR102131137B1 (en) * | 2019-05-21 | 2020-07-07 | 대원강업주식회사 | Spring Manufactured by Tempering Process Omitting |
| CN111549211A (en) * | 2020-05-13 | 2020-08-18 | 邢台钢铁有限责任公司 | Rolling method of micro-boron high-carbon steel wire rod |
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