CN103469657A - Preparation method of die drawing steel strand - Google Patents
Preparation method of die drawing steel strand Download PDFInfo
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- CN103469657A CN103469657A CN 201310361010 CN201310361010A CN103469657A CN 103469657 A CN103469657 A CN 103469657A CN 201310361010 CN201310361010 CN 201310361010 CN 201310361010 A CN201310361010 A CN 201310361010A CN 103469657 A CN103469657 A CN 103469657A
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- preparation
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- shaped steel
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Abstract
The invention discloses a preparation method of a die drawing steel strand. The preparation method comprises the following technological processes: preparing a raw material; treating a surface rust removing layer; drawing a semi-finished product; checking; twisting into a standard product; performing die drawing forming; performing stabilizing treatment; collecting; coiling; checking; packaging and warehousing. By such a mode, the finished product performances of the prepared die drawing steel strand are that the tensile strength is 1,750 MPa, the breaking force is 390 kN, the yield strength is 1,550 MPa, the extensibility is 5 percent, and the 10 h relaxation result detection result is 0.56 percent. The preparation method has the advantages of simple preparation process and convenience in operation; the prepared die drawing steel strand has better comprehensive mechanical property; the product quality meets the requirements of the BS5896-1980 standard.
Description
Technical field
The present invention relates to the metallic article technical field, particularly relate to the preparation method that a kind of mould pulls out the shaped steel twisted wire.
Background technology
It is that the standard steel section twisted wire is through mould sizing, squeezing action that mould pulls out the shaped steel twisted wire, silk one side generation ovalizing deflection in limit is formed, steel strand wires after mould pulls out are that mould pulls out the shaped steel twisted wire, gap between silk and silk has obtained being partially filled, the sizing size that diameter is mould, mould pulls out the sectional area of standard steel section twisted wire of the sectional area ratio same specification of shaped steel twisted wire and wants large, and it is high that its bearing capacity is wanted.
Summary of the invention
The technical problem that the present invention mainly solves is to provide the preparation method that a kind of mould pulls out the shaped steel twisted wire.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of mould to pull out the preparation method of shaped steel twisted wire, it is characterized in that, preparation technology's flow process is as follows: raw material-surface derusting coating processing-semi-finished product drawing-check-be twisted into standard type-Mo to pull into type-stabilization processes-take-up-rolling-check-packing warehouse-in.
In a preferred embodiment of the present invention, described raw material is 82B-1, Φ 12.5mm, σ
bthe high-carbon steel wire rod of>=1200MPa.
In a preferred embodiment of the present invention, described drawing and mould pull out technique to carry out respectively in wire-drawing die and mould withdrawing pattern tool, and the diameter of described wire-drawing die is 18.3mm, and the inlet wire diameter of described mould withdrawing pattern tool is 19.45mm, and outlet diameter is 18.0mm.
In a preferred embodiment of the present invention, described half-finished tensile strength is 1700～1760MPa, and rate elongation is 3.0～4.0%.
In a preferred embodiment of the present invention, described twisting process is: the lay pitch 256～260mm, the speed of service of steel strand wires is 42.1～45.1m/min.
The end properties that the mould prepared as stated above pulls out the shaped steel twisted wire is:
The finished product twisted wire is produced 4 groups altogether, and tensile strength reaches 1750MPa, is greater than 1700MPa, and Fracture Force is 390kN, and yield strength is 1550MPa, and percentage elongation is that 5%, 10h relaxation rate testing result is 0.56%.
The invention has the beneficial effects as follows: the preparation method that a kind of mould of the present invention pulls out the shaped steel twisted wire, preparation technology is simple, easy to operate, and it is better that the mould of preparation pulls out the comprehensive mechanical property of shaped steel twisted wire, and product quality reaches the requirement of BS 5896-1980 standard.
The specific embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The embodiment of the present invention comprises:
A kind of mould pulls out the preparation method of shaped steel twisted wire, and its preparation technology's flow process is as follows: raw material-surface derusting coating processing-semi-finished product drawing-check-be twisted into standard type-Mo to pull into type-stabilization processes-take-up-rolling-check-packing warehouse-in.
Described raw material is that Baogang produces 82B-1, Φ 12.5mm, σ
bthe high-carbon steel wire rod of>=1200MPa.
Described drawing and mould pull out technique to carry out respectively in wire-drawing die and mould withdrawing pattern tool, and the diameter of described wire-drawing die is 18.3mm, and the inlet wire diameter of described mould withdrawing pattern tool is 19.45mm, and outlet diameter is 18.3mm.
Described semi-finished product work production center silk 4 is taken turns, and limit silk 24 is taken turns, and its tensile strength is 1700～1760MPa, and rate elongation is 3.0～4.0%.
The twisting of described steel strand wires is carried out on XN112 rope skipping formula wire twisting machine.The twisting process technological parameter is: the lay pitch 256～260mm; The wire-drawing die diameter is 18.3mm; After the intermediate frequency furnace heating, the line temperature control is at 375～380 ℃; The tension force be applied under hot state on steel strand wires is 137～139kN; The steel strand wires speed of service is controlled at 42.1～45.1m/min; In cooling procedure, it is principle without floating the embroidery that cooling water flow be take steel strand surface after stabilization processes.
Described drawing process is: Φ 12.5-11.43-9.98-8.80-7.80-6.95-6.35mm, and Reduction per draft is respectively 16.39%, 19.87%, 22.25%, 21.44%, 20.62%, 16.52% and 7.06%, and the drawing total draught is 74.19% and 71.27%.
The end properties that the mould prepared as stated above pulls out the shaped steel twisted wire is:
The finished product twisted wire is produced 4 groups altogether, and tensile strength reaches 1750MPa, is greater than 1700MPa, and Fracture Force is 390kN, and yield strength is 1550MPa, and percentage elongation is that 5%, 10h relaxation rate testing result is 0.56%.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (5)
1. the preparation method that mould pulls out the shaped steel twisted wire, is characterized in that, its preparation technology's flow process is as follows: raw material-surface derusting coating processing-semi-finished product drawing-check-be twisted into standard type-Mo to pull into type-stabilization processes-take-up-rolling-check-packing warehouse-in.
2. mould according to claim 1 pulls out the preparation method of shaped steel twisted wire, it is characterized in that, described raw material is 82B-1, Φ 12.5mm, σ
bthe high-carbon steel wire rod of>=1200MPa.
3. mould according to claim 1 pulls out the preparation method of shaped steel twisted wire, it is characterized in that, described drawing and mould pull out technique to carry out respectively in wire-drawing die and mould withdrawing pattern tool, the diameter of described wire-drawing die is 18.3mm, the inlet wire diameter of described mould withdrawing pattern tool is 19.45mm, and outlet diameter is 18.0mm.
4. mould according to claim 1 pulls out the preparation method of shaped steel twisted wire, it is characterized in that, described half-finished tensile strength is 1700～1760MPa, and rate elongation is 3.0～4.0%.
5. mould according to claim 1 pulls out the preparation method of shaped steel twisted wire, it is characterized in that, described twisting process is: the lay pitch 256～260mm, the speed of service of steel strand wires is 42.1～45.1m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310361010 CN103469657A (en) | 2013-08-19 | 2013-08-19 | Preparation method of die drawing steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310361010 CN103469657A (en) | 2013-08-19 | 2013-08-19 | Preparation method of die drawing steel strand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103469657A true CN103469657A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310361010 Pending CN103469657A (en) | 2013-08-19 | 2013-08-19 | Preparation method of die drawing steel strand |
Country Status (1)
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| CN (1) | CN103469657A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669056A (en) * | 2013-12-30 | 2014-03-26 | 天津市津博发金属制品有限公司 | Die-drawing pre-stress steel strand production line |
| CN104741399A (en) * | 2015-04-07 | 2015-07-01 | 奥盛新材料股份有限公司 | Prestress steel strand manufacturing tool and steel strand manufacturing method |
| CN109622644A (en) * | 2018-12-11 | 2019-04-16 | 天津冶金集团中兴盛达钢业有限公司 | A kind of compressor wire and its manufacturing method of small relaxation rate |
| CN114147083A (en) * | 2021-12-02 | 2022-03-08 | 湖南湘钢金属材料科技有限公司 | Preparation method of steel strand for prestressed concrete |
-
2013
- 2013-08-19 CN CN 201310361010 patent/CN103469657A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669056A (en) * | 2013-12-30 | 2014-03-26 | 天津市津博发金属制品有限公司 | Die-drawing pre-stress steel strand production line |
| CN104741399A (en) * | 2015-04-07 | 2015-07-01 | 奥盛新材料股份有限公司 | Prestress steel strand manufacturing tool and steel strand manufacturing method |
| CN109622644A (en) * | 2018-12-11 | 2019-04-16 | 天津冶金集团中兴盛达钢业有限公司 | A kind of compressor wire and its manufacturing method of small relaxation rate |
| CN114147083A (en) * | 2021-12-02 | 2022-03-08 | 湖南湘钢金属材料科技有限公司 | Preparation method of steel strand for prestressed concrete |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |
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| WD01 | Invention patent application deemed withdrawn after publication |