CN102994725A - Complete equipment for lead-free heat treatment of steel wires - Google Patents
Complete equipment for lead-free heat treatment of steel wires Download PDFInfo
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- CN102994725A CN102994725A CN2012104216608A CN201210421660A CN102994725A CN 102994725 A CN102994725 A CN 102994725A CN 2012104216608 A CN2012104216608 A CN 2012104216608A CN 201210421660 A CN201210421660 A CN 201210421660A CN 102994725 A CN102994725 A CN 102994725A
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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 complete equipment for lead-free heat treatment of steel wires. The complete equipment comprises a pay-off machine, an induction heater, a jet cooler and a take-up machine which are connected with one another in sequence, wherein a rust remover, a front tensioner and a front straightening traction machine are connected between the pay-off machine and the take-up machine in sequence; an air cooling section is arranged between the induction heater and the jet cooler; and a rear straightening traction machine, a heat insulation box, a rear tensioner, a self cooling section, a dust remover and a dust-wiping cleaner are connected between the jet cooler and the take-up machine in sequence. The invention also discloses a lead-free heat treatment process for the steel wires. The lead-free heat treatment process comprises the following steps of: austenitizing the steel wires in the induction heater; cooling the austenitized steel wires in water mist quickly to form super-cooled austenite; converting the super-cooled austenite into a lower bainite in the heat insulation box; drawing the steel wires converted into the lower bainite by using the rear tensioner; and cooling the steel wires in the self cooling section naturally, wherein the strength of each steel wire reaches 1,600 MPa. The complete equipment has the advantages that the steel wires are cooled by water in the jet cooler, harmful substances are not generated, and the grain size of each steel wire is up to level 13 or 14.
Description
Technical field
The present invention relates to the unleaded complete equipment that is heat-treated to of a kind of steel wire.
The invention still further relates to the unleaded heat treating method of a kind of steel wire.
Background technology
Traditional steel wire induction heating is the individual wire heating, the production efficiency of light gage wire is very low, be not suitable with the requirement of scale production, heat-eliminating medium in the Steel Wire Heat Treatment process has air, mineral oil, alkaline bath, salt bath, lead bath etc., and the cooling power of every kind of medium is different, to adapt to different thermal treatment process needs, but alkaline bath, salt bath, lead bath are as heat-eliminating medium, a little less than the cooling power, and can produce harmful steam, contaminate environment.Steel wire heats austenitizing in process furnace, then cool off and isothermal in 450-550 ℃ of lead bath, and rate of heating is below 10 ℃/second, and grain fineness number is the 8-9 level, and the maximum intensity of steel wire is less than 1400 MPas.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
The purpose of this invention is to provide the unleaded complete equipment that is heat-treated to of a kind of steel wire.
Another object of the present invention provides the unleaded heat treating method of a kind of steel wire.
The technical solution used in the present invention is:
The unleaded complete equipment that is heat-treated to of steel wire, comprise the paying out machine, induction heater, shower cooler and the wire coiler that are linked in sequence, rust remover, F strain device and front alignment tractor have been linked in sequence between described paying out machine and the induction heater, be provided with the air cooling section between described induction heater and the shower cooler, the rear alignment tractor that has been linked in sequence between described shower cooler and the wire coiler, insulation can, backward pull device, self cooling section, fly-ash separator and wiping dirt clearer.
Be equipped with wire brush in described rust remover and the fly-ash separator.
The casing of described air cooling Duan Weiyi naturally cooling.
Be connected with water-supply pipe and compressed air line on the described shower cooler.
Described insulation can comprises casing, be penetrated with many pipes in the described casing, closely adjacent between every two tubes, described box bilateral wall has a plurality of circular holes, stretch out outside the casing by circular hole at every pipe two ends, described tank ends is provided with and drives the pulley mechanism that steel wire walks back and forth, described pulley mechanism comprises sheave shaft and multi-disc magnesium iron pulley, have axis hole in the middle of each magnesium iron pulley, be arranged with ceramic jacket in the described axis hole, multi-disc magnesium iron pulley equidistantly is placed on the sheave shaft by axis hole, and described sheave shaft is controlled by motor drives.
Described self cooling section bottom is equipped with electric fan, and described electric fan air outlet is aimed at steel wire.
The unleaded heat treating method that is heat-treated to complete equipment of steel wire may further comprise the steps:
A, steel wire enter rust remover behind the balanced unwrapping wire of paying out machine high speed, wire brush is installed in the rust remover, effectively remove the oxide skin of Steel Wire Surface;
B, steel wire are again through F strain device and front alignment tractor traction pulling, enter and carry out austenitizing in the induction heater, the austenitizing rate of heating is more than 500 ℃/second, and the austenitizing Heating temperature is 840-900 ℃, be 0.6-1.2 second heat-up time, grain fineness number 12-14 level;
Steel wire behind c, the austenitizing enters the air cooling section, naturally cooling 0.5-0.8 second enters shower cooler again, and the steel wire behind the austenitizing is cooled fast to the Lower Bainite Transformation district below 400 ℃, more than the Ms point in water smoke, 0.5-1 second cooling time, form supercooled austenite;
D, supercooled austenite through after alignment tractor traction pulling enter insulation can, the supercooled austenite steel wire decomposes in insulation can, the homo(io)thermism of insulation can is below 400 ℃, more than the Ms point, and last supercooled austenite steel wire changes lower bainite in insulation can;
Steel wire behind e, the lower bainite is through the pulling of backward pull device, and through self cooling section naturally cooling, the intensity of steel wire reaches 1600MPa, enters fly-ash separator, removes a small amount of oxide compound of Steel Wire Surface;
Steel wire behind f, the removal oxide compound enters to be wiped in the dirt clearer, wipes the moisture of Steel Wire Surface, and last wire coiler carries out safe take-up to the steel wire that runs up.
Beneficial effect of the present invention: steel wire carries out water cooling in shower cooler, do not produce objectionable impurities, water-cooled cooling power is 10-20 times of plumbous cooling, insulation can is so that the steel wire insulation is even, stretch out the outer pipe of casing, can play autorefrigeration, exempt high temperature and high speed to the damage of follow-up mechanized equipment.
Description of drawings
Fig. 1 is the unleaded complete equipment entire block diagram that is heat-treated to of steel wire of the present invention.
Fig. 2 is the structural representation of insulation can.
Fig. 3 is the structural representation of magnesium iron pulley.
Wherein: 1, paying out machine, 2, rust remover, 3, steel wire, 4, F strain device, 5, front alignment tractor, 6, induction heater, 7, air cooling section, 8, shower cooler, 9, rear alignment tractor, 10, insulation can, 11, the backward pull device, 12, self cooling section, 13, fly-ash separator, 14, wipe the dirt clearer, 15, wire coiler, 16, electric fan, 17, wire brush, 18, water-supply pipe, 19, compressed air line, 20, casing, 21, pipe, 22, circular hole, 23, sheave shaft, 24, the magnesium iron pulley, 25, axis hole, 26, ceramic jacket, 27, electric motor, 28, fabrication hole.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
As shown in Figures 1 to 3, the unleaded complete equipment that is heat-treated to of steel wire of the present invention, comprise the paying out machine 1 that is linked in sequence, induction heater 6, shower cooler 8 and wire coiler 15, rust remover 2 has been linked in sequence between paying out machine 1 and the induction heater 6, F strain device 4 and front alignment tractor 5, be provided with air cooling section 7 between induction heater 6 and the shower cooler 8, rear alignment tractor 9 has been linked in sequence between shower cooler 8 and the wire coiler 15, insulation can 10, backward pull device 11, self cooling section 12, fly-ash separator 13 and wiping dirt clearer 14, air cooling section 7 is the casing of a naturally cooling, self cooling section 12 bottom is equipped with electric fan 16, electric fan 16 air outlets are aimed at steel wire 3, can accelerate the speed of naturally cooling, effective.
Wherein, be equipped with wire brush 17 in rust remover 2 and the fly-ash separator 13, can effectively remove the oxide skin on steel wire 3 surfaces, making can direct phosphating without pickling.
Wherein, be connected with water-supply pipe 18 and compressed air line 19 on the shower cooler 8, be respectively applied to pass into water coolant and pressurized air.
Insulation can 10 comprises casing 20, be penetrated with many pipes 21 in the casing 20, closely adjacent between every two tubes 21, casing 20 two sides have a plurality of circular holes 22, stretch out outside the casing 20 by circular hole 22 at every pipe 21 two ends, casing 20 two ends are provided with and drive the pulley mechanism that steel wire 3 walks back and forth, pulley mechanism comprises sheave shaft 23 and multi-disc magnesium iron pulley 24, have axis hole 25 in the middle of each magnesium iron pulley 24, be arranged with ceramic jacket 26 in the axis hole 25, multi-disc magnesium iron pulley 24 equidistantly is placed on the sheave shaft 23 by axis hole 25, sheave shaft 23 drives control by electric motor 27, steel wire 3 passes through the steel sheave 24 of returning serve again of the seamless tubes in the insulation can 10 from magnesium iron pulley 24 again, each autorotation on sheave shaft 23 of multi-disc magnesium iron pulley 24, steel wire 3 is independent of each other in each magnesium iron pulley 24 walkings, and steel wire 3 is finished sorbitizing under constant temperature.
Following examples 2-4 is the unleaded heat treating method that is heat-treated to complete equipment of steel wire.
Embodiment 2
The unleaded heat treating method that is heat-treated to complete equipment of steel wire may further comprise the steps:
A, steel wire 3 enter rust remover 2 behind the balanced unwrapping wire of paying out machine 1 high speed, wire brush 17 is installed in the rust remover 2, effectively remove the oxide skin on steel wire 3 surfaces;
B, steel wire 3 through F strain device 4 and the 5 traction pullings of front alignment tractor, enter and carry out austenitizing in the induction heater 6 again, and the austenitizing rate of heating is more than 500 ℃/second, and the austenitizing Heating temperature is 840 ℃, and be 0.6 second heat-up time, 12 grades of grain fineness numbers;
Steel wire 3 behind c, the austenitizing enters air cooling section 7, naturally cooling 0.5 second enters shower cooler 8 again, and the steel wire 3 behind the austenitizing is cooled fast to the Lower Bainite Transformation district below 400 ℃, more than the Ms point in water smoke, 0.5 second cooling time, form supercooled austenite;
D, supercooled austenite through after the 9 traction pullings of alignment tractor enter insulation can 10, the supercooled austenite steel wire decomposes in insulation can 10, the homo(io)thermism of insulation can 10 is below 400 ℃, more than the Ms point, and last supercooled austenite steel wire changes lower bainite in insulation can 10;
Steel wire 3 behind e, the lower bainite is through 11 pullings of backward pull device, and through self cooling section naturally cooling, the intensity of steel wire 3 reaches 1600MPa, enters fly-ash separator 13, removes a small amount of oxide compound of Steel Wire Surface;
Steel wire 3 behind f, the removal oxide compound enters to be wiped in the dirt clearer 14, wipes the moisture of Steel Wire Surface, and last 15 pairs of steel wires that run up of wire coiler 3 carry out safe take-up.
Embodiment 3
The unleaded heat treating method that is heat-treated to complete equipment of steel wire may further comprise the steps:
A, steel wire 3 enter rust remover 2 behind the balanced unwrapping wire of paying out machine 1 high speed, wire brush 17 is installed in the rust remover 2, effectively remove the oxide skin on steel wire 3 surfaces;
B, steel wire 3 through F strain device 4 and the 5 traction pullings of front alignment tractor, enter and carry out austenitizing in the induction heater 6 again, and the austenitizing rate of heating is more than 500 ℃/second, and the austenitizing Heating temperature is 870 ℃, and be 0.9 second heat-up time, 13 grades of grain fineness numbers;
Steel wire 3 behind c, the austenitizing enters air cooling section 7, naturally cooling 0.6 second enters shower cooler 8 again, and the steel wire 3 behind the austenitizing is cooled fast to the Lower Bainite Transformation district below 400 ℃, more than the Ms point in water smoke, cooling time 0.8, form supercooled austenite;
D, supercooled austenite through after the 9 traction pullings of alignment tractor enter insulation can 10, the supercooled austenite steel wire decomposes in insulation can 10, the homo(io)thermism of insulation can 10 is below 400 ℃, more than the Ms point, and last supercooled austenite steel wire changes lower bainite in insulation can 10;
Steel wire 3 behind e, the lower bainite is through 11 pullings of backward pull device, and through self cooling section naturally cooling, the intensity of steel wire 3 reaches 1600MPa, enters fly-ash separator 13, removes a small amount of oxide compound of Steel Wire Surface;
Steel wire 3 behind f, the removal oxide compound enters to be wiped in the dirt clearer 14, wipes the moisture of Steel Wire Surface, and last 15 pairs of steel wires that run up of wire coiler 3 carry out safe take-up.
Embodiment 4
The unleaded heat treating method that is heat-treated to complete equipment of steel wire may further comprise the steps:
A, steel wire 3 enter rust remover 2 behind the balanced unwrapping wire of paying out machine 1 high speed, wire brush 17 is installed in the rust remover 2, effectively remove the oxide skin on steel wire 3 surfaces;
B, steel wire 3 through F strain device 4 and the 5 traction pullings of front alignment tractor, enter and carry out austenitizing in the induction heater 6 again, and the austenitizing rate of heating is more than 500 ℃/second, and the austenitizing Heating temperature is 900 ℃, and be 1.2 seconds heat-up time, 14 grades of grain fineness numbers;
Steel wire 3 behind c, the austenitizing enters air cooling section 7, naturally cooling 0.8 second enters shower cooler 8 again, and the steel wire 3 behind the austenitizing is cooled fast to the Lower Bainite Transformation district below 400 ℃, more than the Ms point in water smoke, 1 second cooling time, form supercooled austenite;
D, supercooled austenite through after the 9 traction pullings of alignment tractor enter insulation can 10, the supercooled austenite steel wire decomposes in insulation can 10, the homo(io)thermism of insulation can 10 is below 400 ℃, more than the Ms point, and last supercooled austenite steel wire changes lower bainite in insulation can 10;
Steel wire 3 behind e, the lower bainite is through 11 pullings of backward pull device, and through self cooling section naturally cooling, the intensity of steel wire 3 reaches 1600MPa, enters fly-ash separator 13, removes a small amount of oxide compound of Steel Wire Surface;
Steel wire 3 behind f, the removal oxide compound enters to be wiped in the dirt clearer 14, wipes the moisture of Steel Wire Surface, and last 15 pairs of steel wires that run up of wire coiler 3 carry out safe take-up.
Steel wire 3 of the present invention is through fast induction heating austenitizing superfine crystal particle reinforcement, carry out again the quick cooling of shower cooler 8, change lower bainite into through insulation can 10 again, eliminate the internal stress that produces in the quick process of cooling, steel wire 3 intensity can reach 1600 MPa, and steel wire 3 grain fineness numbers are up to 13,14 grades, steel wire 3 carries out water cooling in shower cooler 8, water-cooled cooling power is 10-20 times of plumbous cooling, does not produce objectionable impurities, meets the energy-conserving and environment-protective production that country advocates.
Claims (7)
1. the unleaded complete equipment that is heat-treated to of steel wire, comprise the paying out machine, induction heater, shower cooler and the wire coiler that are linked in sequence, it is characterized in that: the rust remover that has been linked in sequence between described paying out machine and the induction heater, F strain device and front alignment tractor, be provided with the air cooling section between described induction heater and the shower cooler, the rear alignment tractor that has been linked in sequence between described shower cooler and the wire coiler, insulation can, backward pull device, self cooling section, fly-ash separator and wiping dirt clearer.
2. the unleaded complete equipment that is heat-treated to of steel wire according to claim 1 is characterized in that: be equipped with wire brush in described rust remover and the fly-ash separator.
3. the unleaded complete equipment that is heat-treated to of steel wire according to claim 1 is characterized in that: the casing of described air cooling Duan Weiyi naturally cooling.
4. the unleaded complete equipment that is heat-treated to of steel wire according to claim 1 is characterized in that: be connected with water-supply pipe and compressed air line on the described shower cooler.
5. the unleaded complete equipment that is heat-treated to of steel wire according to claim 1, it is characterized in that: described insulation can comprises casing, be penetrated with many pipes in the described casing, closely adjacent between every two tubes, described box bilateral wall has a plurality of circular holes, stretch out outside the casing by circular hole at every pipe two ends, described tank ends is provided with and drives the pulley mechanism that steel wire walks back and forth, described pulley mechanism comprises sheave shaft and multi-disc magnesium iron pulley, have axis hole in the middle of each magnesium iron pulley, be arranged with ceramic jacket in the described axis hole, multi-disc magnesium iron pulley equidistantly is placed on the sheave shaft by axis hole, and described sheave shaft is controlled by motor drives.
6. the unleaded complete equipment that is heat-treated to of steel wire according to claim 1, it is characterized in that: described self cooling section bottom is equipped with electric fan, and described electric fan air outlet is aimed at steel wire.
7. the unleaded heat treating method that is heat-treated to complete equipment of steel wire is characterized in that: may further comprise the steps:
A, steel wire enter rust remover behind the balanced unwrapping wire of paying out machine high speed, wire brush is installed in the rust remover, effectively remove the oxide skin of Steel Wire Surface;
B, steel wire are again through F strain device and front alignment tractor traction pulling, enter and carry out austenitizing in the induction heater, the austenitizing rate of heating is more than 500 ℃/second, and the austenitizing Heating temperature is 840-900 ℃, be 0.6-1.2 second heat-up time, grain fineness number 12-14 level;
Steel wire behind c, the austenitizing enters the air cooling section, naturally cooling 0.5-0.8 second enters shower cooler again, and the steel wire behind the austenitizing is cooled fast to the Lower Bainite Transformation district below 400 ℃, more than the Ms point in water smoke, 0.5-1 second cooling time, form supercooled austenite;
D, supercooled austenite through after alignment tractor traction pulling enter insulation can, the supercooled austenite steel wire decomposes in insulation can, the homo(io)thermism of insulation can is below 400 ℃, more than the Ms point, and last supercooled austenite steel wire changes lower bainite in insulation can;
Steel wire behind e, the lower bainite is through the pulling of backward pull device, and through self cooling section naturally cooling, the intensity of steel wire reaches 1600MPa, enters fly-ash separator, removes a small amount of oxide compound of Steel Wire Surface;
Steel wire behind f, the removal oxide compound enters to be wiped in the dirt clearer, wipes the moisture of Steel Wire Surface, and last wire coiler carries out safe take-up to the steel wire that runs up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104216608A CN102994725A (en) | 2012-10-30 | 2012-10-30 | Complete equipment for lead-free heat treatment of steel wires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104216608A CN102994725A (en) | 2012-10-30 | 2012-10-30 | Complete equipment for lead-free heat treatment of steel wires |
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| CN102994725A true CN102994725A (en) | 2013-03-27 |
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| CN2012104216608A Pending CN102994725A (en) | 2012-10-30 | 2012-10-30 | Complete equipment for lead-free heat treatment of steel wires |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263899A (en) * | 2014-10-14 | 2015-01-07 | 海城正昌工业有限公司 | Normalizing technology and device for fine 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 |
| CN105154657A (en) * | 2015-10-22 | 2015-12-16 | 中钢集团郑州奥威钢线科技有限公司 | Production method for carrying out online induction annealing heat treatment on alloy profiled spring steel wire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260457A (en) * | 2008-04-22 | 2008-09-10 | 冯伟年 | Multifunctional steel wire induction heating heat-treatment device and method |
-
2012
- 2012-10-30 CN CN2012104216608A patent/CN102994725A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260457A (en) * | 2008-04-22 | 2008-09-10 | 冯伟年 | Multifunctional steel wire induction heating heat-treatment device and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263899A (en) * | 2014-10-14 | 2015-01-07 | 海城正昌工业有限公司 | Normalizing technology and device for fine steel wires |
| CN104263899B (en) * | 2014-10-14 | 2016-06-29 | 海城正昌工业有限公司 | A kind of finer wire normalizing process and device |
| 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 |
| CN105154657A (en) * | 2015-10-22 | 2015-12-16 | 中钢集团郑州奥威钢线科技有限公司 | Production method for carrying out online induction annealing heat treatment on alloy profiled spring steel wire |
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Application publication date: 20130327 |