CN100532589C - On-line bright quenching and tempering method and production line of steel wire - Google Patents
On-line bright quenching and tempering method and production line of steel wire Download PDFInfo
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- CN100532589C CN100532589C CNB2006100480610A CN200610048061A CN100532589C CN 100532589 C CN100532589 C CN 100532589C CN B2006100480610 A CNB2006100480610 A CN B2006100480610A CN 200610048061 A CN200610048061 A CN 200610048061A CN 100532589 C CN100532589 C CN 100532589C
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Abstract
The invention relates to steel wire quenching and tempering, in particular to an on-line bright quenching and tempering method for steel wires. The treatment method of the invention thoroughly changes the original treatment method of the whole bundle of wires, adopts the linear continuous treatment of single wires, has stable and uniform performance and structure of the steel wires, and completely overcomes the condition of non-uniformity inside and outside the periodic furnace bundle treatment. Because the heat treatment process is carried out under the atmosphere of inert protective gas, the surface of the treated steel wire is bright, oxidation and decarburization do not exist, secondary straightening is not needed, and the straightness of the steel wire is far better than the secondary straightening effect of a machine. The treatment method is not only suitable for the quenching and tempering of the steel for the miniature shaft of the die steel and the steel for the piston ring.
Description
Technical field:
The present invention relates to the steel wire modifier treatment, the hardening and tempering method that in particularly producing its matrix hardness and plasticity is carried out also provides production line in addition.
Background technology:
Modifier treatment is one of means of the longer increase metal material hardness of history, for wire product steel wire or steel band (also being shaping steel wire), existing hardening and tempering method is divided into two kinds: a kind of method is to do modifier treatment on wire rod, just the whole bundle of wire rod is put into the cycle stove, quench respectively and temper, and each treating processes is discontinuous, this kind treatment process disadvantage be exactly tissue and the performance of handling the back material all be uneven, surface oxidation and decarburization phenomenon are also very serious.Because of the user is required is vertical bar state product, wire product after whole bundle is handled also will carry out with special straightening equipment cutting off and could using after the straightening repeatedly, the subsequent handling complexity, machine straightening effect is very undesirable again, and, add that stress that straightening produces bends easily and twists in processing such as car, mill subsequently, so just bigger process redundancy must be arranged because of metal has memory characteristic, cause waste of material, the cost height.
Another kind method is that wire rod is not done modifier treatment, and behind the straightening and abscinding, the single hop single-piece is carried out modifier treatment to user's (following operation) voluntarily, defectives such as also there is distortion in this method, and workpiece twists, and oxidation and decarburization are serious, and stable extreme difference, the treatment time is long, the cost height.
Summary of the invention:
The present invention seeks to overcome the deficiency of above-mentioned prior art defective, a kind of online bright hardening and tempering method of steel wire is provided, technology is simple, handles back product non-oxidation and decarburization phenomenon, and hardness and plasticity are all good, and need not straightening.The present invention also provides its production line in addition.
The technical scheme that the present invention is adopted for achieving the above object is: the online bright hardening and tempering method of steel wire, and steel wire LINEAR CONTINUOUS cabling and process are quenched, and the linearity property walked is through tempering, discharging then continuously.
Described quenching and tempering all are to carry out under inert protective gas atmosphere.
The fast deepfreeze of LINEAR CONTINUOUS water-cooled is all arranged after described quenching and the tempering.
Described quenching temperature is 860 ℃～1150 ℃, and the quench cooled temperature is 30 ℃～50 ℃, and tempering temperature is 420 ℃～680 ℃, and the tempering cooling temperature is 10-30 ℃, according to waiting composition of handling wire rod to decide.
Described wire rod Trace speed is decided by scantling and instrument size.
Described steel wire be meant mould with wire rod, miniature axle with wire rod or piston ring wire rod etc.
Described steel wire is that mould is with wire rod and miniature axle wire rod, through outlet after the modifier treatment, the online desired length that cuts into during outlet.
Described steel wire is the piston ring wire rod, through outlet after the modifier treatment, batches automatic winding displacement after the take-up.
Described special production line comprises quenching furnance and tempering stove, quenching furnance is that two tubular type continuous heat treating furnaces dynamically are connected with tempering stove, quenching furnance and tempering stove discharge port all have the tubular type cooling trough, the tempering stove outlet dynamically connects take-up equipment, be connected with rare gas element in the boiler tube, the tubular type continuous heat treating furnace is built-in with single boiler tube or many boiler tubes, boiler tube is the heat-resistance stainless steel pipe, boiler tube quantity is identical with tempering stove quantity with quenching furnance in the cooling trough, the boiler tube size is decided by the wire size of handling, be generally diameter 18～75mm and do not wait, quenching furnance and tempering stove length ratio are 1:2.2-3.5, and cooling trough length is 3.5～6 meters.
Treatment process of the present invention thoroughly changes original whole bundle wire rod treatment process, adopts the processing of single line material LINEAR CONTINUOUS, and the performance of steel wire is stable and uniformity with tissue, overcomes the situation of the inside and outside inequality of cycle stove bundle processing fully.Since in heat treatment process, be under inert protective gas atmosphere, to carry out, Steel Wire Surface light, non-oxidation and decarburization after the processing.Owing to the steel wire itself of handling the stove processing continuously is straightened,, need not the secondary straightening in addition, directly cut off and just can use for die steel and miniature axle class steel.And the straight degree of steel wire will the straightening of far super machine secondary effect.Quenching furnance and tempering stove Design of length guarantee modified effect and the two matching, and tank is used for cooling off boiler tube, thus the continuous steel wire that comes out from heat treatment furnace of process in the cooling tube, thus reach the fast cold purpose of quenching and tempering.Cold modified material plasticity is risen soon after the tempering, and hardness is constant.Water temperature is decided according to performance, requirement difference, regulates circulating water temperature automatically, and water temperature is constant more, and performance is constant more.
Treatment process of the present invention is not only applicable to the miniature axle-steel of die steel, and piston ring is with on the quenching and tempering.Also can correspondingly use during other steel grade thermal treatments, its effect can be found out from following table.
Description of drawings:
Fig. 1 is die steel of the present invention or miniature axle-steel modifier treatment process flow sheet.
Fig. 2 is a piston ring wire rod modifier treatment process flow sheet of the present invention.
Fig. 3 is a production line structural representation of the present invention.
Embodiment:
Embodiment 1
Die steel modifier treatment technology as shown in Figure 1: steel wire is through the pay off rack unwrapping wire, the LINEAR CONTINUOUS cabling quenches through quenching furnance earlier, quenching temperature is 1100 ℃, the quench cooled temperature is 40 ℃, follow continuous linear cabling and carry out tempering through tempering stove, tempering temperature is 650 ℃, and the tempering cooling temperature is 20 ℃ of discharging and the online desired lengths that cut into then, and quenching and tempering all are to carry out under nitrogen atmosphere.
Miniature axle-steel modifier treatment technology as shown in Figure 1: steel wire is through the pay off rack unwrapping wire, the LINEAR CONTINUOUS cabling quenches through quenching furnance earlier, quenching temperature is 1070 ℃, the quench cooled temperature is 45 ℃, follow continuous linear cabling and carry out tempering through tempering stove, tempering temperature is 600 ℃, and the tempering cooling temperature is 25 ℃ of discharging and the online desired lengths that cut into then, and quenching and tempering all are to carry out under nitrogen atmosphere.
Piston ring wire rod modifier treatment technology as shown in Figure 2: steel wire is through the pay off rack unwrapping wire, the LINEAR CONTINUOUS cabling quenches through quenching furnance earlier, quenching temperature is 1100 ℃, the quench cooled temperature is 48 ℃, follow continuous linear cabling and carry out tempering through tempering stove, tempering temperature is 630 ℃, and the tempering cooling temperature is 28 ℃ of dischargings then, batch automatic winding displacement after the take-up, quench and tempering all is to carry out under nitrogen atmosphere.
The equipment that the foregoing description adopted includes unwrapping wire equipment 1, quenching furnance 2 and tempering stove 3, quenching furnance and tempering stove are that the ratio of two furnace length is that the tubular type continuous heat treating furnace of 1:2.2-3.5 dynamically is connected, it is 3.5～6 mitron formula cooling troughes 4 that quenching furnance and tempering stove discharge port all have length, the tempering stove outlet dynamically connects take-up equipment 5, the tubular type continuous heat treating furnace is built-in with single boiler tube or many boiler tubes, boiler tube 6 is connected with rare gas element in the heat-resistance stainless steel pipe, boiler tube quantity is identical with tempering stove quantity with quenching furnance in the cooling trough, the boiler tube size is decided by the wire size of handling, and is generally diameter 18～75mm and does not wait.
Claims (7)
1, the online bright hardening and tempering method of steel wire; it is characterized in that: adopt single line material LINEAR CONTINUOUS to handle; treating processes is that steel wire LINEAR CONTINUOUS cabling and process are quenched continuously; continuous linear cabling is through tempering; discharging then; quenching and tempering all are to carry out under inert protective gas atmosphere, after quenching and the tempering the fast deepfreeze of LINEAR CONTINUOUS water-cooled are arranged all.
2, the online bright hardening and tempering method of steel wire according to claim 1, it is characterized in that: quenching temperature is 860 ℃～1150 ℃, and the quench cooled temperature is 30 ℃～50 ℃, and tempering temperature is 420 ℃～680 ℃, the tempering cooling temperature is 10-30 ℃, decides according to the composition of pending wire rod.
3, the online bright hardening and tempering method of steel wire according to claim 1 is characterized in that: steel wire be meant mould with wire rod, miniature axle with wire rod or piston ring wire rod.
4, the online bright hardening and tempering method of steel wire according to claim 1 is characterized in that: steel wire is that mould is with wire rod and miniature axle wire rod, through outlet after the modifier treatment, the online desired length that cuts into during outlet.
5, the online bright hardening and tempering method of steel wire according to claim 1 is characterized in that: steel wire is the piston ring wire rod, through outlet after the modifier treatment, batches automatic winding displacement after the take-up.
6, the online bright hardening and tempering method special production line of steel wire, it is characterized in that: production line comprises quenching furnance and tempering stove, quenching furnance is that two tubular type continuous heat treating furnaces dynamically are connected with tempering stove, quenching furnance and tempering stove discharge port all have the tubular type cooling trough, the tempering stove outlet dynamically connects take-up equipment, the tubular type continuous heat treating furnace is built-in with single boiler tube or many boiler tubes, boiler tube is the heat-resistance stainless steel pipe, boiler tube quantity is identical with tempering stove quantity with quenching furnance in the tubular type cooling trough, the boiler tube size is decided by the wire size of handling, and is connected with rare gas element in the boiler tube.
7, the online bright hardening and tempering method special production line of steel wire according to claim 6, it is characterized in that: quenching furnance and tempering stove length ratio are 1:2.2-3.5, tubular type cooling trough length is 3.5～6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100480610A CN100532589C (en) | 2006-10-16 | 2006-10-16 | On-line bright quenching and tempering method and production line of steel wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100480610A CN100532589C (en) | 2006-10-16 | 2006-10-16 | On-line bright quenching and tempering method and production line of steel wire |
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| CN1936032A CN1936032A (en) | 2007-03-28 |
| CN100532589C true CN100532589C (en) | 2009-08-26 |
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| CNB2006100480610A Active CN100532589C (en) | 2006-10-16 | 2006-10-16 | On-line bright quenching and tempering method and production line of steel wire |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5657316B2 (en) * | 2010-09-22 | 2015-01-21 | Ntn株式会社 | Automobile parts, manufacturing method and manufacturing apparatus thereof |
| CN102181621A (en) * | 2011-04-26 | 2011-09-14 | 大连东非特钢制品有限公司 | Quenching and tempering treatment method of steel slender axle type part |
| CN102345003B (en) * | 2011-10-28 | 2013-05-15 | 武汉钢铁(集团)公司 | Method for manufacturing high yield ratio steel wire |
| CN104017980B (en) * | 2014-03-11 | 2016-08-17 | 温州一川金属科技有限公司 | The light of automobile piston rings special irregular steel wire is quenched tempering process |
| CN110343842B (en) * | 2019-07-31 | 2021-07-13 | 安徽普力森特钢有限公司 | Steel wire quenching process |
| CN110894570B (en) * | 2019-11-14 | 2021-06-01 | 江阴康瑞成型技术科技有限公司 | Process for online removing material processing stress and straightening and cutting |
| CN113862432A (en) * | 2021-08-31 | 2021-12-31 | 大连环新精密特钢股份有限公司 | Carbon steel wire air quenching method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100190A (en) * | 1985-04-01 | 1986-08-06 | 西安冶金建筑学院 | Reforming spring steel wire heat treating method and equipment |
| CN1105070A (en) * | 1993-08-10 | 1995-07-12 | 住友电气工业株式会社 | PC steel wire or steel bar with good straightness and forging characters |
| CN2727188Y (en) * | 2004-02-26 | 2005-09-21 | 天津市金能电力电子有限公司 | Thermal treatment double-line producing device for high-strength prestressed steel rod |
-
2006
- 2006-10-16 CN CNB2006100480610A patent/CN100532589C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100190A (en) * | 1985-04-01 | 1986-08-06 | 西安冶金建筑学院 | Reforming spring steel wire heat treating method and equipment |
| CN1105070A (en) * | 1993-08-10 | 1995-07-12 | 住友电气工业株式会社 | PC steel wire or steel bar with good straightness and forging characters |
| CN2727188Y (en) * | 2004-02-26 | 2005-09-21 | 天津市金能电力电子有限公司 | Thermal treatment double-line producing device for high-strength prestressed steel rod |
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| CN1936032A (en) | 2007-03-28 |
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Effective date of registration: 20140730 Address after: 116600 No. 76 middle Tieshan Road, Dalian economic and Technological Development Zone, Liaoning Patentee after: Dalian Boxinte Steel Product Co., Ltd. Address before: 302, unit 4, building 2, B4 District, spring district, Ganjingzi District, Liaoning, Dalian 116031 Patentee before: Li Xianghui |
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Address after: 116600 No. 76 middle Tieshan Road, Dalian economic and Technological Development Zone, Liaoning Patentee after: Big chain new special steel Limited by Share Ltd Address before: 116600 No. 76 middle Tieshan Road, Dalian economic and Technological Development Zone, Liaoning Patentee before: Dalian Boxinte Steel Product Co., Ltd. |
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Address after: No.76, Tieshan Middle Road, economic and Technological Development Zone, Dalian City, Liaoning Province Patentee after: Dalian Lianhuan New Material Technology Co.,Ltd. Address before: No.76, Tieshan Middle Road, economic and Technological Development Zone, Dalian City, Liaoning Province Patentee before: DALIAN HUANXIN PRECISION SPECIAL STEEL CO.,LTD. |
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