CN102719651A - Rapid induction heating and air cooling heat treatment process for steel wire - Google Patents
Rapid induction heating and air cooling heat treatment process for steel wire Download PDFInfo
- Publication number
- CN102719651A CN102719651A CN2012102148466A CN201210214846A CN102719651A CN 102719651 A CN102719651 A CN 102719651A CN 2012102148466 A CN2012102148466 A CN 2012102148466A CN 201210214846 A CN201210214846 A CN 201210214846A CN 102719651 A CN102719651 A CN 102719651A
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- steel wire
- induction heating
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- treatment process
- cooled
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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
- Y02P10/25—Process efficiency
Abstract
The invention discloses a rapid induction heating and air cooling heat treatment process for a steel wire. The process comprises the following steps of: rapidly heating a high-carbon steel wire with the diameter of 2 to 4mm to austenitizing temperature in an induction heating mode within three seconds, keeping the temperature for 5 to 20 seconds, and rapidly cooling the heated steel wire to sorbite low temperature in an air cooling mode to obtain a fine sorbite structure, wherein the rapid air cooling rate is 80 to 200 DEG C/second. The process has the advantages that the process is environment-friendly and easy and convenient to operate, expensive heat treatment equipment is not needed, manufacturing cost is low, production efficiency is high, and the like; and by the process, obvious social benefit and economic benefit are achieved.
Description
Technical field
The present invention relates to the air-cooled thermal treatment process of a kind of quick induction heating steel wire, belong to wireline heat treatment of metal wires technical field.
Background technology
Existing wireline ME at first need be made steel wire and be twisted into thigh then, synthesizes rope at last.In the steel wire manufacturing processed, become the steel wire of certain diameter through draw after handling early stage by the starting material wire rod of sorbitizing.Owing to the most of steel wire of deformation work hardening reason can not arrive final size by disposable draw; Need carry out intermediate heat treatment obtains tiny sorbite and organizes and eliminate deformation work hardening; Thereby make steel wire regain the ability of deformation, this heat treating method is claimed to send and is stepped on processing.Carry out isothermal processes in 500 ℃～550 ℃ lead baths at steel wire intermediate heat treatment process need; This lead bath isothermal processes plurality of heavy metal lead that can volatilize; Can production cost be increased mass consumption lead on the one hand; Heavy metal lead can cause the operator to produce lead poisoning on the other hand, can produce environment in addition and pollute, so each state is all in the novel method of seeking to substitute lead patenting.But also do not find a method that can substitute lead bath fully so far.At present both at home and abroad mainly adopt salt bath to substitute lead bath, wear that water cools off fast, high temperature section is cooled off at the pbz polymer aqueous solution fast, new technologies such as low-temperature zone isothermal substitute the lead patenting processing.The cooling rate that mainly has high temperature section is not as lead bath is fast, the low-temperature zone cooling rate comparatively fast is easy to obtain martensite and produces fragility; Cause the carbon steel wire quality unstable, problem such as the technological operation difficulty is big, main performance index is lower than lead bath quenching is not so applied.Existing enterprise adopts wind cooling method to handle wire rod (the wire rod diameter 8～15mm) after rolling in the carbon element wire rod; Can obtain the sorbite tissue more than 90%; But because this treatment process cooling rate is lower, can only the group's of acquisition size and the thicker sorbite of interlamellar spacing; Thereby its intensity plasticity is lower, can not satisfy the steel wire properties requirement.So existing thermal treatment process to the steel wire that is used for wireline still is not ideal enough.
Summary of the invention
The objective of the invention is: the good and environmentally safe of a kind of mechanical property, simple to operation, the air-cooled thermal treatment process of quick induction heating steel wire that cost of manufacture is lower are provided, to overcome the deficiency of prior art.
The present invention is achieved in that the air-cooled thermal treatment process of a kind of quick induction heating steel wire of the present invention is; The mode that adopts induction heating is the high-carbon steel wire of 2～4mm is heated rapidly to the austenitizing temperature zone in 3 seconds after it to be kept 5～20 seconds in this temperature province with diameter; Should be cooled fast to the sorbite low-temperature region by heated steel wire through air-cooled mode then; Obtaining tiny sorbite tissue, the air-cooled speed of its quick refrigerative was 80 ℃～200 ℃ ∕ seconds.
Above-mentioned austenitizing temperature zone is 780 ℃～900 ℃.
Above-mentioned sorbite low-temperature region is 500 ℃～600 ℃.
Owing to adopted technique scheme; The present invention is at first with the mode of 2～4mm diameter wire through induction heating; Be heated rapidly to the austenitizing temperature zone, and then adopt the bigger low discharge air cooling way of pressure to cool off the sorbite tissue that obtains refinement fast.Adopt the present invention can make steel wire realize quick austenitizing, and can make steel wire after the tiny original austenite grain degree of acquisition reaches 8～11 grades of scopes, obtain the sorbite tissue through quick air-cooled mode, its sorbitic rate is greater than more than 90%.The present invention is to workman and environmental nonpollution, and heat treatment efficiency is high, and the product of being produced has the mechanical property suitable with lead patenting.So, the present invention compared with prior art, the present invention not only has environmentally safe, advantage simple to operation, and has and do not need expensive lower, the production efficiency advantages of higher of HTFX, cost of manufacture.Adopt the present invention to produce, have remarkable social benefit and economic benefit.
Embodiment
Below in conjunction with embodiment the present invention is done further to say in detail.
Embodiments of the invention 1: during the air-cooled thermal treatment process of a kind of quick induction heating steel wire of embodiment of the present invention; Can adopt traditional electrical induction heating equipment; Mode through induction heating is the high-carbon steel wire of 2～4mm is heated rapidly to austenitizing temperature zone (this austenitizing temperature zone is 780 ℃～900 ℃) in 3 seconds after with diameter; Make steel wire keep for 5～20 seconds in this temperature province; Thereby realize quick austenitizing, can make steel wire obtain tiny original austenite grain degree like this and reach 8～11 grades scope, adopt the air cooling equipment of the more large and small flow of pressure steel wire to be carried out air-cooled fast then; The air-cooled speed of its quick refrigerative should be for 80 ℃～200 ℃ ∕ seconds; Can should be cooled fast to sorbite low-temperature region (this sorbite low-temperature region is 500 ℃～600 ℃) by heated steel wire through air-cooled mode like this, thereby obtain tiny sorbite tissue, and the sorbitic rate that can make steel wire is greater than more than 90%.
Embodiment 2: in 3 seconds, make its temperature reach 780 ℃～900 ℃ scope the steel wire of the 70 steel f3.2 mode through induction heating; Make steel wire then after this temperature province kept for 5～20 seconds; Adopting air-cooled speed is that the air-cooled equipment of 80 ℃～200 ℃ ∕ seconds carries out air-cooled to steel wire; After making it be cooled fast to 500 ℃～600 ℃, can make steel wire obtain tiny sorbite tissue.
Through test, the Mechanical Properties of Steel Wire of processing through the present invention is: tensile strength Rm: >=1160～1280; Relative reduction in area y >=60%.
From the above, adopt the mechanical property of product processed of the present invention to be approximately higher than traditional lead bath mode product processed mechanical property.
Claims (3)
1. air-cooled thermal treatment process of quick induction heating steel wire; It is characterized in that: the mode that adopts induction heating is the high-carbon steel wire of 2～4mm is heated rapidly to the austenitizing temperature zone in 3 seconds after it to be kept 5～20 seconds in this temperature province with diameter; Should be cooled fast to the sorbite low-temperature region by heated steel wire through air-cooled mode then; Obtaining tiny sorbite tissue, the air-cooled speed of its quick refrigerative was 80 ℃～200 ℃ ∕ seconds.
2. the air-cooled thermal treatment process of quick induction heating steel wire according to claim 1 is characterized in that: described austenitizing temperature zone is 780 ℃～900 ℃.
3. the air-cooled thermal treatment process of quick induction heating steel wire according to claim 1 is characterized in that: described sorbite low-temperature region is 500 ℃～600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102148466A CN102719651A (en) | 2012-06-27 | 2012-06-27 | Rapid induction heating and air cooling heat treatment process for steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102148466A CN102719651A (en) | 2012-06-27 | 2012-06-27 | Rapid induction heating and air cooling heat treatment process for steel wire |
Publications (1)
| Publication Number | Publication Date |
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| CN102719651A true CN102719651A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102148466A Pending CN102719651A (en) | 2012-06-27 | 2012-06-27 | Rapid induction heating and air cooling heat treatment process for steel wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630436A (en) * | 2013-11-06 | 2015-05-20 | 南京工程学院 | Rapid spheroidizing technology of cold-drawn deformed steel wires |
| CN104963225A (en) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | Multiple steel wire induction heating and water-cooling production line |
| CN106435099A (en) * | 2016-12-02 | 2017-02-22 | 中钢集团郑州金属制品研究院有限公司 | Steel wire induction heating water bath quenching heat treatment technology |
Citations (10)
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|---|---|---|---|---|
| JPS5757837A (en) * | 1980-09-24 | 1982-04-07 | Sumitomo Metal Ind Ltd | Production of high carbon high tensile wire rod |
| JPS59159937A (en) * | 1983-03-03 | 1984-09-10 | Kobe Steel Ltd | Continuous spheroidization treatment of steel wire rod |
| JPH05255748A (en) * | 1992-03-09 | 1993-10-05 | Sumitomo Metal Ind Ltd | Method and equipment for wire rod for wiredrawing |
| IE64032B1 (en) * | 1988-01-25 | 1995-06-28 | Michelin & Cie | Process and apparatus for heat-treating carbon steel wires to obtain a fine pearlite structure |
| US5749981A (en) * | 1993-04-12 | 1998-05-12 | The Goodyear Tire & Rubber Company | Process for producing patented steel wire |
| CN1184718A (en) * | 1996-12-10 | 1998-06-17 | 鞍山钢铁集团公司 | Process for producing steel wire being used to produce tyre steel cord |
| JP2904505B2 (en) * | 1989-05-22 | 1999-06-14 | 高周波熱錬株式会社 | Method of manufacturing steel wire for cold / warm forging and steel wire for cold / warm forging |
| CN101260457A (en) * | 2008-04-22 | 2008-09-10 | 冯伟年 | Multifunctional steel wire induction heating heat-treatment device and method |
| CN101514391A (en) * | 2009-03-31 | 2009-08-26 | 武汉钢铁(集团)公司 | Production method of high-carbon steel wire capable of improving draw ductility |
| CN102162025A (en) * | 2011-03-28 | 2011-08-24 | 首钢总公司 | Method for reducing center martensitic structure of high-carbon steel coil rod |
-
2012
- 2012-06-27 CN CN2012102148466A patent/CN102719651A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757837A (en) * | 1980-09-24 | 1982-04-07 | Sumitomo Metal Ind Ltd | Production of high carbon high tensile wire rod |
| JPS59159937A (en) * | 1983-03-03 | 1984-09-10 | Kobe Steel Ltd | Continuous spheroidization treatment of steel wire rod |
| IE64032B1 (en) * | 1988-01-25 | 1995-06-28 | Michelin & Cie | Process and apparatus for heat-treating carbon steel wires to obtain a fine pearlite structure |
| JP2904505B2 (en) * | 1989-05-22 | 1999-06-14 | 高周波熱錬株式会社 | Method of manufacturing steel wire for cold / warm forging and steel wire for cold / warm forging |
| JPH05255748A (en) * | 1992-03-09 | 1993-10-05 | Sumitomo Metal Ind Ltd | Method and equipment for wire rod for wiredrawing |
| US5749981A (en) * | 1993-04-12 | 1998-05-12 | The Goodyear Tire & Rubber Company | Process for producing patented steel wire |
| CN1184718A (en) * | 1996-12-10 | 1998-06-17 | 鞍山钢铁集团公司 | Process for producing steel wire being used to produce tyre steel cord |
| CN101260457A (en) * | 2008-04-22 | 2008-09-10 | 冯伟年 | Multifunctional steel wire induction heating heat-treatment device and method |
| CN101514391A (en) * | 2009-03-31 | 2009-08-26 | 武汉钢铁(集团)公司 | Production method of high-carbon steel wire capable of improving draw ductility |
| CN102162025A (en) * | 2011-03-28 | 2011-08-24 | 首钢总公司 | Method for reducing center martensitic structure of high-carbon steel coil rod |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630436A (en) * | 2013-11-06 | 2015-05-20 | 南京工程学院 | Rapid spheroidizing technology of cold-drawn deformed steel wires |
| CN104630436B (en) * | 2013-11-06 | 2017-09-26 | 南京工程学院 | A kind of fast spheroidizing annealing handling process of drawing deformation steel wire |
| CN104963225A (en) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | Multiple steel wire induction heating and water-cooling production line |
| CN106435099A (en) * | 2016-12-02 | 2017-02-22 | 中钢集团郑州金属制品研究院有限公司 | Steel wire induction heating water bath quenching heat treatment technology |
| CN106435099B (en) * | 2016-12-02 | 2018-05-25 | 中钢集团郑州金属制品研究院有限公司 | A kind of steel wire induction heating water-bath quenching heat treatment technique |
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Application publication date: 20121010 |