CN106623480A - Production method of prestressed wire with small transmission length - Google Patents
Production method of prestressed wire with small transmission length Download PDFInfo
- Publication number
- CN106623480A CN106623480A CN201710037618.9A CN201710037618A CN106623480A CN 106623480 A CN106623480 A CN 106623480A CN 201710037618 A CN201710037618 A CN 201710037618A CN 106623480 A CN106623480 A CN 106623480A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- transmission length
- wire
- production method
- prestress
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to a production method of a prestressed wire with a small transmission length, which mainly aims to solve the problem of gradual cracking of both ends of a member in service because no prestress exists in the both ends of the member due to a certain transmission length of the both ends of the member when the prestress is established by virtue of the binding force of the prestressed wire and concrete after relaxation in the prior art. On an existing production line of a spiral rib steel wire, after the steel wire is drawn by a hard alloy smooth round mold, the strength of the steel wire is reduced after being heated at the moment, a plurality of heading-shaped bulges are processed on the surface of the steel wire by using a three-high mill at a certain distance, the distance between adjacent bulges is adjusted according to the length and stretching extension of the member, and the heading-shaped bulges can be tightly pressed against the ends of the member after relaxation. The production method has the advantages that the transmission length of the prestressed wire after relaxation for establishing the prestress can be eliminated or reduced, so that the whole member is protected by the prestress, and the ends of the member are prevented from cracking and damaging.
Description
Technical field：
The present invention relates to compressor wire production method, is specifically related to a kind of producer of low transmission length compressor wire
Method.
Background technology：
The prestressed reinforced concrete constructions such as railroad sleeper, typically using helix rib steel wire as presstressed reinforcing steel, and are applied using pre-tensioning system
Work.When setting up prestressing force by the adhesion of compressor wire and concrete after due to putting, there is a fixed length in component two ends
The transmission length of degree, causes component two ends not have prestressing force, gradually ftractures during causing component two ends under arms.This is railway
The main cause that sleeper is destroyed and scrapped.
The content of the invention：
The technical problem to be solved is to provide one kind and can eliminate or reduce after compressor wire is put sets up prestressing force
Transmission length, the production method of the low transmission compressor wire of component ends cracking damage can be prevented.
What above-mentioned purpose was realized in：On existing helix rib steel wire production line, steel wire Jing hard alloy light face circle mould
After drawing, now intensity declines after steel wire heating, if processing arterial highway upsetting according to a determining deviation in Steel Wire Surface with three-high mill
The projection of head shapes, the spacing between the adjacent protrusion is adjusted according to component length and stretching extension, a heading after putting
The projection of shape can be compressed with component ends, and in addition to inside forms prestressing force due to adhesion, two ends are because of anchoring effect also shape
Into prestressing force, prestressing force protection is applied to component total length.
It is an advantage of the invention that：Using this method, can eliminate or reduce to set up prestressed after compressor wire is put
Transmission length so that whole component is all protected by prestressing force, prevents component ends cracking damage.
Description of the drawings：
Fig. 1 is the main structure diagram of low transmission length compressor wire, and 1 is steel wire main body in figure, and 2 are projection；
Fig. 2 is the side structure schematic view of low transmission length compressor wire, and 1 is steel wire main body in figure, and 2 are projection.
Specific embodiment：
On existing helix rib steel wire production line, steel wire Jing after hard alloy light face circle die drawing is pulled out, now intensity after steel wire heating
Decline, if processing the projection of arterial highway heading shape according to a determining deviation in Steel Wire Surface with three-high mill（Referring to accompanying drawing）, institute
The spacing stated between adjacent protrusion is adjusted according to component length and stretching extension, a projection energy and structure of heading shape after putting
Part end compresses, and in addition to inside forms prestressing force due to adhesion, two ends also form prestressing force because of anchoring effect, complete to component
It is long to apply prestressing force protection.
Claims (1)
1. the production method of low transmission length compressor wire, is characterized in that：On existing helix rib steel wire production line, steel wire Jing
After hard alloy light face circle die drawing is pulled out, now intensity declines after steel wire heating, with three-high mill in Steel Wire Surface according between certain
If the spacing between the projection for processing arterial highway heading shape, the adjacent protrusion is carried out according to component length and stretching extension
Adjustment, the projection of heading shape can be compressed with component ends after putting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037618.9A CN106623480A (en) | 2017-01-19 | 2017-01-19 | Production method of prestressed wire with small transmission length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037618.9A CN106623480A (en) | 2017-01-19 | 2017-01-19 | Production method of prestressed wire with small transmission length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623480A true CN106623480A (en) | 2017-05-10 |
Family
ID=58841747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037618.9A Pending CN106623480A (en) | 2017-01-19 | 2017-01-19 | Production method of prestressed wire with small transmission length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106623480A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB965275A (en) * | 1960-06-21 | 1964-07-29 | Johannes Gillberg | Method and apparatus for the manufacture of reinforcing bars |
| CN1118811A (en) * | 1994-05-02 | 1996-03-20 | 高周波热炼株式会社 | Differencial shaped rod steel with high adhesion and high strength |
| CN2529934Y (en) * | 2002-03-13 | 2003-01-08 | 吴英剑 | High strength cold rolled reinforced bar with rib |
| CN1712179A (en) * | 2005-07-27 | 2005-12-28 | 吴英剑 | Process for producing screw-thread steel by draw-milling |
| CN103551418A (en) * | 2013-11-07 | 2014-02-05 | 天津德嘉预应力钢绞线有限公司 | Production process of pre-stressed indented steel wire for railroad sleeper |
| CN103866914A (en) * | 2012-12-11 | 2014-06-18 | 天津银龙预应力材料股份有限公司 | Deformed steel wire |
| CN105256950A (en) * | 2015-11-05 | 2016-01-20 | 天津银龙预应力材料股份有限公司 | Prestressed reinforcement with self-anchoring parts |
-
2017
- 2017-01-19 CN CN201710037618.9A patent/CN106623480A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB965275A (en) * | 1960-06-21 | 1964-07-29 | Johannes Gillberg | Method and apparatus for the manufacture of reinforcing bars |
| CN1118811A (en) * | 1994-05-02 | 1996-03-20 | 高周波热炼株式会社 | Differencial shaped rod steel with high adhesion and high strength |
| CN2529934Y (en) * | 2002-03-13 | 2003-01-08 | 吴英剑 | High strength cold rolled reinforced bar with rib |
| CN1712179A (en) * | 2005-07-27 | 2005-12-28 | 吴英剑 | Process for producing screw-thread steel by draw-milling |
| CN103866914A (en) * | 2012-12-11 | 2014-06-18 | 天津银龙预应力材料股份有限公司 | Deformed steel wire |
| CN103551418A (en) * | 2013-11-07 | 2014-02-05 | 天津德嘉预应力钢绞线有限公司 | Production process of pre-stressed indented steel wire for railroad sleeper |
| CN105256950A (en) * | 2015-11-05 | 2016-01-20 | 天津银龙预应力材料股份有限公司 | Prestressed reinforcement with self-anchoring parts |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |