CN110904703A - Steel wire rope for concrete prefabricated high-strength metal connecting piece and production method thereof - Google Patents
Steel wire rope for concrete prefabricated high-strength metal connecting piece and production method thereof Download PDFInfo
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- CN110904703A CN110904703A CN201910928870.8A CN201910928870A CN110904703A CN 110904703 A CN110904703 A CN 110904703A CN 201910928870 A CN201910928870 A CN 201910928870A CN 110904703 A CN110904703 A CN 110904703A
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Classifications
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
- D07B1/144—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for cables or cable components built-up from metal wires
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
- D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2011—Wires or filaments characterised by a coating comprising metals
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Abstract
The invention discloses a steel wire rope for a concrete prefabricated high-strength metal connecting piece and a production method thereof, wherein the steel wire rope comprises a plurality of layers of steel wire stranded steel strands and a mandrel, and the steel wire strands are stranded into a spiral shape by taking the mandrel as a center through a set number of steel wire strand twists; the mandrel is made of a high-plasticity metal material, the cross section of the mandrel is not less than one seventh of the cross section of the whole steel wire rope, the production method of the steel wire rope is further disclosed, the high-plasticity metal material is used as the mandrel, the cross section area of the mandrel is not less than one seventh of the cross section area of the whole steel wire rope, and then the steel wire rope can be kept in a bent state after being bent, so that the steel wire rope is convenient to install.
Description
Technical Field
The invention belongs to the technical field of steel wire ropes, and particularly relates to a steel wire rope for a concrete prefabricated high-strength metal connecting piece and a production method thereof.
Background
In the construction process, according to the use function requirements in a building, a metal embedded part may need to be placed at a preset position before concrete is poured, the metal embedded part is fixed in the concrete after the concrete is poured, and the exposed part is used for connection or hoisting.
The existing prefabricated parts (embedded parts) are usually fixed and cannot be hidden after concrete is poured, so that the appearance of the exposed parts of the concrete is greatly influenced in the process of not using the parts, and the exposed parts even cause other injuries.
This enterprise has researched and developed a novel prefabricated high strength metal connecting piece of concrete for this reason, including hollow shell and connecting portion, connecting portion include the wire rope of one section fifty percent discount, wire rope's both ends are worn out its both ends outwards by hollow box body inside and are carried out fixed connection, wire rope's bending part is accepted in the hollow box body. The steel wire rope used by the existing concrete prefabricated high-strength metal connecting piece is a spiral steel wire bundle formed by twisting steel wires with mechanical properties and geometric dimensions meeting requirements together according to a certain rule, and the steel wire rope consists of steel wires, a rope core and lubricating grease. The steel wire rope is a spiral rope which is formed by twisting a plurality of layers of steel wires into strands, and then twisting a certain number of strands by taking a rope core as a center. In a material handling machine for lifting, pulling, tensioning and carrying. The steel wire rope has high strength, light dead weight, stable work, difficult sudden whole breakage and reliable work, so in order to ensure that the steel wire rope has high strength, the steel wire of the traditional steel wire rope production is made of high-quality carbon steel, the steel wire can reach high strength after cold drawing and heat treatment for many times, and the plasticity of the steel wire rope is inevitably reduced due to the increase of the strength. However, in the actual installation process of the concrete prefabricated high-strength metal connecting piece, the steel wire rope needs to be embedded into the concrete at an angle close to 90 degrees with the hollow shell, so that the optimal embedded strength is achieved. The existing steel wire ropes all use steel wires with high hardness and good rigidity, such as steel wires, as main components, so that the connecting part can be bent and formed, and the steel wire ropes are very easy to restore to the initial state even if being bent forcibly, and the required angle is difficult to maintain.
Disclosure of Invention
The invention aims to provide a steel wire rope for a concrete prefabricated high-strength metal connecting piece and a production method thereof, and aims to solve the problems that the existing steel wire rope is high in strength and difficult to bend and deform and is difficult to meet the requirements of bending a set angle and keeping the angle when the concrete prefabricated high-strength metal connecting piece is used.
In order to solve the technical problem, the invention aims to realize that:
a steel wire rope for a concrete prefabricated high-strength metal connecting piece comprises a steel wire strand twist formed by twisting a plurality of layers of steel wires and a mandrel, wherein the steel wire strand twist with a set number is twisted into a spiral shape by taking the mandrel as a center; the mandrel is made of a high-plasticity metal material, and the cross section of the mandrel is not less than one seventh of the cross section of the whole steel wire rope.
On the basis of the above scheme and as a preferable scheme of the scheme: the elongation of the mandrel is not less than 30%.
On the basis of the above scheme and as a preferable scheme of the scheme: the mandrel is made of low-carbon steel.
On the basis of the above scheme and as a preferable scheme of the scheme: and performing galvanizing treatment on the surface of the mandrel.
On the basis of the above scheme and as a preferable scheme of the scheme: the core is characterized by also comprising a hemp core or a cotton core, wherein the hemp core or the cotton core is stranded in each steel wire strand or is parallel to the core shaft and is close to the peripheral surface of the core shaft.
On the basis of the above scheme and as a preferable scheme of the scheme: the production method of the steel wire rope for the concrete prefabricated high-strength metal connecting piece comprises the following steps
S1: preparing a steel wire blank and a mandrel blank;
s2: pretreating, namely respectively carrying out acid washing on the steel wire blank and the mandrel blank, and drying after acid washing;
s3: drawing, namely drawing the steel wire blank and the mandrel blank to set sizes respectively by using a drawing machine to obtain a steel wire finished product and a mandrel finished product;
s4: rolling, namely rolling the steel wire finished product and the mandrel finished product which are drawn to set sizes respectively;
s5: stranding, namely stranding the steel wire finished product by a stranding machine to obtain a twisted steel wire strand;
s6: rope doubling, namely twisting the mandrel finished product and the steel wire strands into a steel wire rope by a rope doubling machine;
s7: and (5) winding and packaging the steel wire rope.
On the basis of the above scheme and as a preferable scheme of the scheme: and step S3, adding wire drawing powder and saponification liquid to the steel wire blank and the mandrel blank during drawing.
On the basis of the above scheme and as a preferable scheme of the scheme: the method further comprises a step of oiling the stranded steel wire rope after the step S6.
On the basis of the above scheme and as a preferable scheme of the scheme: the oiling process comprises the steps of changing the direction of a steel wire rope through a pulley, then finishing oiling through passing the steel wire rope through an oil tank, adding grease into the oil tank before oiling, heating the oil tank to enable the grease to be in a liquid state, and controlling the heating temperature to be 80-120 ℃.
On the basis of the above scheme and as a preferable scheme of the scheme: the grease used for oiling comprises, by mass, 50-70 parts of fourteen-wire base oil, 20-30 parts of paraffin, 10-15 parts of barium petroleum sulfonate and 5-10 parts of modified plastic particles.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that: the steel wire rope of this application is through the metal material of high plasticity as the dabber to make the cross-sectional area of dabber be no less than the seventh of whole steel wire rope cross-sectional area, so after the steel wire rope of buckling alright make the state that steel wire rope kept buckling, thereby use when being convenient for install.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the second embodiment;
FIG. 3 is a schematic diagram of the third embodiment.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
Example one
A steel wire rope for a concrete prefabricated high-strength metal connecting piece comprises a steel wire strand twist 2 formed by twisting a plurality of layers of steel wires 21 and a mandrel 1, wherein the steel wire strand twist 2 with a set number is twisted into a spiral shape by taking the mandrel 1 as a center; the material of the mandrel 1 is a high-plasticity metal material, and the cross section of the mandrel 1 is not less than one seventh of the cross section of the whole steel wire rope.
Specifically, the elongation of the high-plasticity metal material is not lower than 30%, and the elastic modulus of the high-plasticity metal material is far smaller than that of the twisted steel wire strands, so that the mandrel generates large plastic deformation before the twisted steel wire strands are subjected to plastic deformation, and the steel wire rope at the bent part can be kept in a bent state after the mandrel generates the plastic deformation. The structure not only meets the strength requirement of the concrete prefabricated member on the steel wire rope in the hoisting process after the concrete prefabricated high-strength metal connecting member is successfully prefabricated, but also can be bent and kept in a bent state to facilitate installation, so that the concrete prefabricated high-strength metal connecting member achieves the best strength and effect.
Further preferably, the mandrel is low-carbon steel, the mark of the preferred low-carbon steel is Q195, Q195 is carbon structural steel, the yield strength is 195MPA, the elongation (delta 5/%) is more than or equal to 33 percent, the mandrel has high plasticity and toughness, and meanwhile, the cross section area of the mandrel is not less than one seventh of the cross section of the steel wire rope, so that the bent part can be well kept in a bent state after the steel wire rope is bent.
Because precast concrete high strength metal connecting piece is in case prefabricate and use the back, its limit is placed in the open air along the precast concrete spare for a long time, for the mode dabber is corroded in the use, this embodiment is preferred dabber 1 surface carries out zinc-plating and is handled to promote the corrosion ability of dabber, promote its life.
Example two
The service environment of concrete prefabricated part often is outdoor, just so make the wire rope of precast concrete high strength metal connecting piece also be in outdoor rugged environment for a long time, then there will be wire rope's corrosion, in addition, also can take place wearing and tearing between the steel wire of hoist and mount in-process wire rope, influence life, for this embodiment still includes hemp core or cotton core 22 on the basis of embodiment one, hemp core or cotton core strand twist in every steel strand twist 2, hemp core or cotton core 22 just can adsorb grease in the in-process of wire rope fat liquoring like this, the tensile grease that can extrude in hemp core or cotton core 22 of steel wire in the in-process of using, protect and lubricate the steel wire.
EXAMPLE III
As another embodiment of the second embodiment, it is different from the second embodiment in that the hemp core or cotton core 22 is parallel to the mandrel 1 and close to the outer circumference of the mandrel 1, so that the stranding process of the steel wire rope can be simplified on the basis of solving the problems of steel wire protection and lubrication.
The production method of the steel wire rope for the concrete prefabricated high-strength metal connecting piece comprises the following steps:
s1: and purchasing the outsourcing steel wire blank and the semi-finished blank of the mandrel blank from enterprises meeting the national standard.
: firstly, respectively carrying out acid washing on a steel wire blank and a mandrel blank, drying after acid washing, and then respectively drawing; specifically, the dried steel wire blank and the dried mandrel blank are drawn by a wire drawing machine, in order to increase lubrication and reduce abrasion in the drawing process, wire drawing powder and saponification liquid (which are recycled and not discharged outwards) need to be added during drawing, the steel wire with the diameter of 1.6-2.2mm is drawn to the steel wire with the diameter of 0.19-0.9mm, the mandrel blank is drawn to the diameter which is not less than one seventh of the cross section area of the steel wire rope, and a steel wire finished product and a mandrel finished product are obtained.
: according to market demands, part of the steel wire blanks and the mandrel blanks are drawn and then enter a wire collecting process, a spool is used for collecting wires, and the steel wire finished products and the mandrel finished products after being collected are packaged and put in storage for sale.
: stranding: stranding the hemp core and the cotton core by using a stranding machine, and then stranding the stranded hemp core or cotton core and a finished steel wire product by using the stranding machine to obtain a twisted steel wire strand.
: rope combination: and twisting the steel wire strands and the mandrel finished product into a rope by a rope doubling machine.
: oiling: in order to prevent the steel wire rope from rusting, the steel wire rope after rope combination needs to be coated with oil, specifically, the steel wire rope is subjected to a wire collecting process after the direction of the steel wire rope is changed by a pulley and passes through an oil tank, oil in the oil tank is solid at normal temperature and is changed into liquid by electric heating when in use, the heating temperature is 80-120 ℃, oil mist is generated in the process, and the oil mist is discharged to a recovery processing device through an exhaust device positioned above the oil tank for recovery processing. The preferable grease comprises 50-70 parts of minus four-line base oil, 20-30 parts of paraffin, 10-15 parts of barium petroleum sulfonate and 5-10 parts of modified plastic particles by mass.
: taking up: and (3) oiling the steel wire rope, and then entering a wire collecting process, wherein a horizontal wire collecting machine is adopted for collecting the wire rope in the process, and the collected steel wire rope is packaged and stored in a warehouse.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a precast concrete high strength wire rope for metal connecting piece which characterized in that: the steel wire stranding machine comprises a steel wire strand twist formed by twisting a plurality of layers of steel wires into strands and a mandrel, wherein the steel wire strand twist with a set number is twisted into a spiral shape by taking the mandrel as a center; the mandrel is made of a high-plasticity metal material, and the cross section of the mandrel is not less than one seventh of the cross section of the whole steel wire rope.
2. The steel wire rope for the concrete precast high-strength metal connecting member according to claim 1, characterized in that: the elongation of the mandrel is not less than 30%.
3. The steel wire rope for the concrete precast high-strength metal connecting member according to claim 1, characterized in that: the mandrel is made of low-carbon steel.
4. The steel wire rope for the concrete precast high-strength metal connecting member according to claim 1, characterized in that: and performing galvanizing treatment on the surface of the mandrel.
5. The steel wire rope for the concrete precast high-strength metal connecting member according to claim 1, characterized in that: the core is characterized by also comprising a hemp core or a cotton core, wherein the hemp core or the cotton core is stranded in each steel wire strand or is parallel to the core shaft and is close to the peripheral surface of the core shaft.
6. A method for producing a steel wire rope for a precast concrete high-strength metal connecting member according to claims 1 to 5, characterized in that: comprises the following steps
S1: preparing a steel wire blank and a mandrel blank;
s2: pretreating, namely respectively carrying out acid washing on the steel wire blank and the mandrel blank, and drying after acid washing;
s3: drawing, namely drawing the steel wire blank and the mandrel blank to set sizes respectively by using a drawing machine to obtain a steel wire finished product and a mandrel finished product;
s4: rolling, namely rolling the steel wire finished product and the mandrel finished product which are drawn to set sizes respectively;
s5: stranding, namely stranding the steel wire finished product by a stranding machine to obtain a twisted steel wire strand;
s6: rope doubling, namely twisting the mandrel finished product and the steel wire strands into a steel wire rope by a rope doubling machine;
s7: and (5) winding and packaging the steel wire rope.
7. A method for producing a steel wire rope for a precast concrete high-strength metal connecting member according to claim 6, characterized in that: and step S3, adding wire drawing powder and saponification liquid to the steel wire blank and the mandrel blank during drawing.
8. A method for producing a steel wire rope for a precast concrete high-strength metal connecting member according to claim 6, characterized in that: the method further comprises a step of oiling the stranded steel wire rope after the step S6.
9. A method for producing a steel wire rope for a precast concrete high-strength metal connecting member according to claim 8, characterized in that: the oiling process comprises the steps of changing the direction of a steel wire rope through a pulley, then finishing oiling through passing the steel wire rope through an oil tank, adding grease into the oil tank before oiling, heating the oil tank to enable the grease to be in a liquid state, and controlling the heating temperature to be 80-120 ℃.
10. A method for producing a steel wire rope for a precast concrete high-strength metal connecting member according to claim 9, characterized in that: the grease used for oiling comprises, by mass, 50-70 parts of fourteen-wire base oil, 20-30 parts of paraffin, 10-15 parts of barium petroleum sulfonate and 5-10 parts of modified plastic particles.
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| CN113430848A (en) * | 2021-05-11 | 2021-09-24 | 盐城荣星制绳有限公司 | Production process of hollow steel wire rope |
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