CN1752225A - Production method and device of removing internal stess of steel wire for cold upsetting - Google Patents
Production method and device of removing internal stess of steel wire for cold upsetting Download PDFInfo
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- CN1752225A CN1752225A CNA2004100515521A CN200410051552A CN1752225A CN 1752225 A CN1752225 A CN 1752225A CN A2004100515521 A CNA2004100515521 A CN A2004100515521A CN 200410051552 A CN200410051552 A CN 200410051552A CN 1752225 A CN1752225 A CN 1752225A
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- cold upsetting
- internal stress
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
A method for eliminating the internal stress of steel wire features use of normalizing mode instead of annealing for higher machinability of steel wire. Its apparatus is composed of payoff, MF or HF induction heater wind ring coil, and winder.
Description
Technical field:
The present invention relates to steel wire that a kind of cold upsetting uses and eliminate the production method and the device of internal stress.
Background technology:
The steel wire raw material that existing cold upsetting is used is to adopt the tensile mode to carry out processing, after processing, has bigger internal stress in the inside of steel wire.Need eliminate internal stress carrying out the upsetting first being processed that cold upsetting uses.
Carrying out internal stress for wire rod eliminates, existing mode is to adopt the annealed heat treatment mode, provide a kind of galvanized steel wire Medium frequency induction annealing device as No. 96226437.7 utility model patents of the patent No., with regard to the mode that provides a kind of galvanized steel wire to eliminate internal stress is to adopt the annealed mode, and provide the annealed device, include intermediate frequency power supply, spooler, induction heater, holding-zone, induction heater has a spirrillum open tube induction coil to be fixed on the framework, and the induction coil turn-to-turn has high temperature resistant, anti-insulating packing layer, there is water coolant to pass through in the open tube of induction coil.As No. 02146464.2 application for a patent for invention prospectus of the patent No., provide a kind of anneal machine, the system that forms by variable-frequency power sources, induction coil, guide wheel, annealing pipe, water coolant and steam boiler to wire annealings such as electric wire, insulated wire.Treat that wherein the annealed conductor is secondary through the single turn that B, C, D guide wheel constitute induction coil T.The water vapor that steam boiler provides is full of the annealing pipe, to prevent conductor oxidation in annealing process.In addition, the heat treated report that the existing steel wire of using for cold upsetting is eliminated internal stress is the employing annealing way, adopts the thermal treatment of annealing of the mode of pit furnace or vacuum annealing furnace.Adopt the anneal thermal treatment and be not suitable for the steel wire that cold upsetting is used of above-mentioned mode, reason is that annealed mode temperature is higher, easy carbonization of steel wire or sintering, and be unfavorable for that cold upsetting uses.Annealing simultaneously, the required time, length, equipment were all comparatively complicated, and more again time marquis also needs to add protection gas and protects whole heat treatment process complexity.
Summary of the invention:
The object of the present invention is to provide a kind of production method and device that steel wire that cold upsetting uses is eliminated internal stress of eliminating, the production method that is adopted is simple, and whole heat treatment process institute time-consuming is short, the good product effect of treated mistake.The device that is provided has simple in structure, advantage easy to use.
The production method that realizes the steel wire elimination internal stress that elimination cold upsetting of the present invention is used is to adopt the mode of normalizing.The steel wire that required cold upsetting of heat-treating is used is heated above 200 ℃, be lower than under 700 ℃ the temperature, in the air at room temperature cooling, can obtain than adopting the annealing way crystal inside to organize thinner wire rod, wire rod has the steel wire of better processability energy.
In order to realize that steel wire that cold upsetting is used quickly heats up to the normalizing temperature of reservation, realize operation automatically, the heating unit that is adopted adopts middle and high frequency electric induction heater, be provided with toroidal coil at middle and high frequency electric induction heater, be provided with the collection apparatus of collecting steel wire in equipment, its concrete production method is: the step
Suddenly as follows:
A. the steel wire starting end of cold upsetting being used therefrom, pass in the ruhmkorff coil of high-frequency electrical induction well heater and be fixed on the wire rod collection apparatus;
B. the steel wire heating that middle and high frequency electric induction heater energising is used cold upsetting;
C. the steel wire used of cold upsetting is warming up to normalizing temperature in ruhmkorff coil; Temperature is 200 ℃～700 ℃.
D. the steel wire used of cold upsetting passes from the ruhmkorff coil of electric induction heater under the pulling of wire rod collection apparatus;
E. the steel wire used of cold upsetting is lowered the temperature in air;
F. the steel wire used of cold upsetting is collected by collection apparatus.
Steel wire therefrom, to wear the out of date linear velocity be 0.2m/min～3m/min for the ruhmkorff coil of high-frequency electrical induction well heater.Be preferably 1.5m/min.The electric current of ruhmkorff coil is 13A～200A.
The device of realizing the steel wire elimination internal stress that elimination cold upsetting of the present invention is used comprises pay off rack, middle and high frequency electric induction heater, take-up stand, is provided with toroidal coil at middle and high frequency electric induction heater.This device simple in structure do not need to adopt the holding-zone that the steel wire that is heated is incubated, the steel wire after heating after from coil, passing, directly in air, cool off.
Middle and high frequency electric induction heater can be any of medium frequency induction heater or high-frequency electrical induction well heater.
As improvement, on middle and high frequency electric induction heater, be provided with infrared thermometer and automatic temperature-controlled power regulator, to carrying out thermometric by the steel wire in the coil, with thermometric signal feedback to the automatic temperature-controlled power regulator of middle and high frequency electric induction heater, automatic temperature-controlled power regulator is for to handle the temperature signal of being surveyed, then electric current is compensated, can adopt transistor or integrated package to get final product, existing this kind production marketing in the existing market, also existing this kind ic chip of Dongguan state water chestnut Mechanology Inc. puts goods on the market.When measured temperature is higher than the normalizing temperature of reservation, lower toroidal electric current; When measured temperature is lower than the normalizing temperature of reservation, increase toroidal electric current.Can make the Heating temperature of the steel wire that is passed through reach predetermined normalizing temperature like this.
Adopt production method of the present invention and equipment, can make by the steel wire in the coil and be added to predetermined normalizing temperature by Rapid Thermal in a short period of time owing to the reason of magnetic field eddy current.Because heat-up time is short, temperature is lower than the annealed temperature, and steel wire sintering, decarburization can not take place.After leaving toroidal coil, steel wire breaks away from magnetic field, begins cooling at room temperature, and steel wire carries out normalizing, can obtain tiny crystal, and thinner than adopting the annealing way crystal inside to organize, wire rod has the better processability energy.
Adopt production method of the present invention, the crystal that can be used in the steel wire that cold upsetting uses is than adopting the better organization internal crystalline structure of annealing way, and performance is better.Adopt normalizing production method and step simpler compared to existing technology simultaneously, convenient.Adopt thermal treatment unit of the present invention simple in structure, easy to use.
Description of drawings:
Fig. 1 is apparatus of the present invention structural representations.
Specific embodiment
As shown in Figure 1, the device that the steel wire that the elimination cold upsetting is used is eliminated internal stress comprises pay off rack 1, high-frequency electrical induction well heater 2, take-up stand 3, is provided with toroidal coil 4 at high-frequency electrical induction well heater, is provided with infrared thermometer 5 on high-frequency electrical induction well heater 2.
Production method of the present invention and step are as follows:
A. steel wire 6 starting ends used of cold upsetting pass from the toroidal coil 4 of high-frequency electrical induction well heater 2 and are fixed on the wire rod take-up stand;
B. high-frequency electrical is responded to steel wire 6 heating that well heater 2 energisings are used cold upsetting;
C. the steel wire 6 used of cold upsetting is warming up to normalizing temperature in toroidal coil 4; Temperature is 200 ℃～700 ℃.
D. the steel wire 6 used of cold upsetting passes from the toroidal coil 4 of electric induction heater 2 under the pulling of wire rod take-up stand 3;
E. the steel wire 6 used of cold upsetting is lowered the temperature in air;
F. the steel wire 6 used of cold upsetting is collected by take-up stand 3.Steel wire therefrom, to wear the out of date linear velocity be 0.2m/min～3m/min for the ruhmkorff coil of high-frequency electrical induction well heater.Be preferably 1.5m/min.The electric current of ruhmkorff coil is 13A～200A.
Added to predetermined normalizing temperature by Rapid Thermal by the steel wire in the toroidal coil 46 in a short period of time owing to the reason of magnetic field eddy current.After steel wire 6 broke away from from toroidal coil 4, steel wire 6 broke away from magnetic field, begins the normalizing of lowering the temperature at room temperature, and the steel wire 6 after the cooling is collected by take-up stand 3.5 pairs of infrared thermometers on the high-frequency electrical induction well heater 2 carry out thermometric by the steel wire in the coil 6, with in the treater of thermometric signal feedback tremendously high frequency electric induction heater.When measured temperature is higher than the normalizing temperature of reservation, lower the electric current of toroidal coil 4; When measured temperature is lower than the normalizing temperature of reservation, increase the electric current of toroidal coil 4.Can make the Heating temperature of the steel wire that is passed through reach predetermined normalizing temperature like this.
Claims (8)
1. the steel wire used of a cold upsetting is eliminated the production method of internal stress, and its feature is eliminated internal stress in the mode that adopts normalizing.
2. the steel wire that cold upsetting as claimed in claim 1 is used is eliminated the production method of internal stress, it is characterized in that step is as follows:
A. with the steel wire starting end therefrom, pass in the ruhmkorff coil of high-frequency electrical induction heating installation and be fixed on the wire rod collection apparatus;
B. middle and high frequency electric induction heater energising is heated steel wire;
C. steel wire is warming up to normalizing temperature in ruhmkorff coil; Temperature is 200 ℃～700 ℃.
D. steel wire under the pulling of wire rod collection apparatus therefrom, pass in the ruhmkorff coil of high-frequency electrical induction well heater;
E. steel wire cooling naturally in air;
F. steel wire is collected by collection apparatus.
3. steel wire that cold upsetting as claimed in claim 2 is used is eliminated the production method of internal stress, it is characterized in that steel wire therefrom, to wear the out of date linear velocity be 0.2m/min～3m/min for the ruhmkorff coil of high-frequency electrical induction well heater.
4. steel wire that cold upsetting as claimed in claim 3 is used is eliminated the production method of internal stress, it is characterized in that steel wire therefrom, to wear the out of date linear velocity be 1.5m/min for the ruhmkorff coil of high-frequency electrical induction well heater.
5. go up the production method that steel wire that cold upsetting uses is eliminated internal stress as claim 2 or 3 described, the electric current that it is characterized in that ruhmkorff coil is 13A～200A.
6. the steel wire used of a cold upsetting is eliminated the production unit of internal stress, comprises support, it is characterized in that being provided with pay off rack, middle and high frequency electric induction heater, wire rod collection apparatus.
7. the steel wire that cold upsetting as claimed in claim 5 is used is eliminated the production unit of internal stress, it is characterized in that being provided with infrared thermometer and automatic temperature-controlled power regulator on middle and high frequency electrical induction heating device.
8, the steel wire used of cold upsetting as claimed in claim 5 is eliminated the production unit of internal stress, it is characterized in that middle and high frequency electrical induction heating device is a high-frequency electrical induction well heater, and the wire rod collection apparatus is a take-up stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100515521A CN100480399C (en) | 2004-09-22 | 2004-09-22 | Production method and device of removing internal stress of steel wire for cold upsetting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100515521A CN100480399C (en) | 2004-09-22 | 2004-09-22 | Production method and device of removing internal stress of steel wire for cold upsetting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752225A true CN1752225A (en) | 2006-03-29 |
| CN100480399C CN100480399C (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100515521A Expired - Fee Related CN100480399C (en) | 2004-09-22 | 2004-09-22 | Production method and device of removing internal stress of steel wire for cold upsetting |
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| CN (1) | CN100480399C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966411A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Manufacturing method for medium-carbon cold forging steel rods and wires |
| CN110229956A (en) * | 2019-07-03 | 2019-09-13 | 内蒙古科技大学 | A kind of steel residual stress removal device |
-
2004
- 2004-09-22 CN CNB2004100515521A patent/CN100480399C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966411A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Manufacturing method for medium-carbon cold forging steel rods and wires |
| CN103966411B (en) * | 2013-01-24 | 2016-07-27 | 宝山钢铁股份有限公司 | A kind of manufacture method of medium carbon cold heading steel Bar Wire Product |
| CN110229956A (en) * | 2019-07-03 | 2019-09-13 | 内蒙古科技大学 | A kind of steel residual stress removal device |
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| Publication number | Publication date |
|---|---|
| CN100480399C (en) | 2009-04-22 |
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Granted publication date: 20090422 Termination date: 20110922 |