CN103357695A - Processing method for flat wire used for tensioning wheel of engine - Google Patents
Processing method for flat wire used for tensioning wheel of engine Download PDFInfo
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- CN103357695A CN103357695A CN2013103263447A CN201310326344A CN103357695A CN 103357695 A CN103357695 A CN 103357695A CN 2013103263447 A CN2013103263447 A CN 2013103263447A CN 201310326344 A CN201310326344 A CN 201310326344A CN 103357695 A CN103357695 A CN 103357695A
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Abstract
The invention discloses a processing method for a flat wire used for a tensioning wheel of an engine. The processing method comprises the following steps of drawing a carbon steel wire rod or an alloy steel wire rod with the diameter of 11.0-12.0 mm into roulette wounded wire with the diameter of 10.0-10.8 mm; heating the steel wire to a temperature of 900-1,100 DEG C at a heating speed of 6.0-12.0 m/s by power-on heating; rolling the roulette wounded wire to the thickness of 3.4-4.5 mm and the width of 16.5-17.0 mm through a rolling mill once; performing pickling and phosphating surface treatment on the hot-roll flat wire; drawing the wire into the size of a product; winding the wire by a detachable roulette; removing the roulette; and carrying out annealing treatment at a temperature of 650-720 DEG C and keeping the temperature for 2-5 h. The production process can roll the wire into required size once, is high in production efficiency and stable in product quality, can save energy consumption, overcomes the disadvantages of a conventional production process, and omits tedious backwinding and pickling processes.
Description
Technical field
The present invention relates to Steel Wire Products Industry profile wire technical field, what relate generally to is engine stretching wheel with the processing method of wide spring flat steel silk.
Background technology
At present, known production engine stretching wheel is to adopt the cold rolling method that adds middle heat treated of multi-pass with wide spring flat filament.Its principle be rolling through the 2-3 road after, in shaft furnace, carry out stress relief annealing, then be rolled again through surface treatment, so repeatedly, finally the product (referring to Fig. 1) that meets the demands is produced in finishing through die drawing.
The cold rolling method that adds middle heat treated of above-mentioned employing multi-pass has following deficiency: 1. want multi-pass rolling, repeatedly annealing, cost is high; 2. multi-pass rolling, repeatedly annealing, productivity ratio is low, and the production cycle is long; 3. during well furnace, each non-uniform temperature in the stove, and in the heating process, the skin that becomes to check and regulate steel wire and generally be steel wire arrives first the heat treatment temperature of setting, and under the temperature retention time condition, outer hardness ratio internal layer is low equally, be that whole dish steel wire hardness is uneven, have relation because steel wire spreads with the hardness of steel wire, make down that the flat wire width can't be controlled when rolling together, product quality is difficult to assurance; 4. cold rolling easy generation cracking phenomena causes the percent defective of product high.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, the production and processing method of a kind of engine stretching wheel with wide spring flat steel silk is provided, its technological process is simple, and production efficiency is high, constant product quality.
The present invention realizes that the technical scheme that above-mentioned purpose is taked is: a kind of engine stretching wheel may further comprise the steps with the processing method of wide spring flat steel silk:
Material is prepared: diameter 11.0～12.0mm carbon steel wire rod or steel alloy wire rod are pulled to diameter 10.0～10.8mm, the wheel disc take-up through surface treatment;
Hot rolling: diameter 10.0～10.8mm is passed through power on heating through the circle silk of wheel disc take-up, make wire temperature reach 900～1100 ℃ with 6.0～12.0m/s firing rate, once roll thickness 3.4～4.5mm through milling train, width 16.5～17.0mm, and through the wheel disc take-up;
Line falling: with the thickness 3.4～4.5mm of hot rolling, loose ring unloads on width 16.5～17.0mm flat filament trailing wheel;
Surface treatment: the line that loose ring is unloaded carries out the acid washing phosphorization surface treatment;
Finishing die drawing: will be drawn into product size through acid washing phosphorization surface-treated hot rolling flat filament, and through detachable wheel disc take-up, unload dish;
Gas shield annealing: will heat-treat through the flat wire of die drawing finishing 650～720 ℃ of annealing temperatures, insulation 2～5h.
The present invention is further, and in described material preparation process, drawing is carried out at 1/900 Dry drawing machine, drawing speed 30～60m/min.
The present invention is further, and in described hot rolling, as anodal, one as negative pole with one of the plumbous liquid bath of two thawings for power on heating, 400～530 ℃ of anodal lead bath temperature, 450～550 ℃ of negative pole lead bath temperature.
The present invention is further, in described hot-rolled step, and card piezoelectric voltage 30.0～40.0V, the steel wire heating temperature is 900～1100 ℃.
The present invention is further, and in described hot-rolled step, hot rolling is adopted under the duo mill automatic pressing, depresses thickness 6.2～7.0mm, and mill speed is 7～12m/min, can once roll into the flat wire of thickness 3.4～4.5mm, width 16.3～17.0mm.
The present invention is further, and in described line falling step, the line that the method for employing backwinding machine or artificial line falling will be received on the wheel disc unclamps, and then carries out conventional pickling, the phosphatization surface treatment.
The present invention is further, and in described finishing die drawing step, die drawing is to carry out drawing speed 30～50m/min at the 1/900 horizontal or vertical dry-type wire drawing machine of drawing block diameter 560～900mm.
The present invention is further, and in described gas shield annealing steps, annealing is carried out at shaft furnace, 650～730 ℃ of temperature, and insulation 2～4.5h, furnace temperature drops to and is lower than 300 ℃ and comes out of the stove.
The present invention is further, and in described gas shield annealing steps, protective gas is N
2Or CO
2
Beneficial effect of the present invention is as follows:
(1) traditional processing technology is wanted multi-pass rolling, repeatedly annealing, and cost is high; Multi-pass rolling, repeatedly annealing, productivity ratio is low, and the production cycle is long; During well furnace, each non-uniform temperature in the stove, and in the heating process, the skin that becomes to check and regulate steel wire and generally be steel wire arrives first the heat treatment temperature of setting, and under the temperature retention time condition, outer hardness ratio internal layer is low equally, be that whole dish steel wire hardness is uneven, have relation because steel wire spreads with the hardness of steel wire, make down that the flat wire width can't be controlled when rolling together, product quality is difficult to assurance; Cold rolling easy generation cracking phenomena causes the percent defective of product high.
(2) production technology of the present invention once can be rolled down to required size, and production efficiency is high, and energy efficient has overcome traditional processing technology and had true point, has reduced loaded down with trivial details line falling and acid cleaning process.
Description of drawings
Fig. 1 is the prior art processes flow chart.
Fig. 2 is process chart of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with concrete drawings and Examples.But the present invention does not limit to following examples.
Embodiment 1
The described engine stretching wheel of the present embodiment is 3.2 ± 0.04 * 16.0 ± 0.08mm with flat wire thickness, and both sides are the flat wire of free circular arc, and its processing method may further comprise the steps:
(1) material is prepared.Diameter 11.0mm60Si2Mn steel alloy wire rod is processed through acid washing phosphorization, pulled to diameter 10.2 ± 0.02mm, the wheel disc take-up.Wherein, pickling, phosphatization are treated to common process in the metallic article production; Drawing is adopted and is carried out drawing speed 40m/min at known 1/900 horizontal Dry drawing machine.Diaphragm capsule and reel water-cooled are sufficient in drawing process, and the mould cooling is good, and whole dish steel wire is end to end in the margin of tolerance, and is namely not overproof; It is good that drawing goes out the steel wire linearity, and steel wire can enter rolling mill guiding smoothly and do not rub and hinder steel wire when being convenient to hot rolling.
(2) hot rolling.Diameter 10.2mm is arrived steel wire heating to 1050 ℃ with the 10m/min firing rate card piezoelectric voltage 36.0V by the card electricity through the round silk of the 60Si2Mn of wheel disc take-up.Described power on heating be with one of the plumbous liquid bath of two thawings as anodal, another is negative pole.450 ± 1 ℃ of anodal lead bath temperature, 550 ± 2 ℃ of negative pole lead bath temperature.Adopt the electric this mode firing rate of card fast, the thermal efficiency is high, and surface oxidation is few, and the steel wire grain structure is thin.Also can adopt traditional diamond heating, but this mode speed is slow, the thermal efficiency is low, and the Steel Wire Surface oxidation is serious, easily decarburization, and the steel wire grain structure is thick, can not satisfy production requirement.Roll thickness 3.6 ± 0.1mm, the flat wire of width 16.5 ± 0.10mm through duo mill a time.Milling train adopts diameter 220mm duo mill, under the automatic pressing, and drafts 6.6mm, mill speed is 10.0m/min.Then use the wheel disc take-up.The simple two rolling control equipments of rolling employing, operation is convenient; Adopt under the automatic pressing and can adjust at any time flat filament thickness and width, make it to satisfy technological requirement.
(3) line falling: with the thickness 3.6 ± 0.1mm of hot rolling, width 16.5 ± 0.10mm flat wire adopts backwinding machine will closely be received in line on the wheel disc to unclamp and unload, so that pickling, phosphatization are processed.
(4) surface treatment: the line that falls down is carried out conventional pickling, phosphatization processing.Pickling, phosphatization are common process during metallic article is produced, and condition is provided for follow-up die drawing finishing is lubricated.
(5) die drawing finishing: will be through overpickling, parkerized flat hot rolled bar silk, being used on the 1/900 horizontal type dry wire drawing machine by pass is that 3.2mm * 16.0m mould is drawn into finished product flat wire, drawing speed 30m/min.And through detachable wheel disc take-up, unload dish.This technique is as the assurance of flat filament final size shape, every dish flat wire end to end allowance control within institute's claimed range.
(6) gas shield annealing or vacuum drying oven annealing: will process through the flat wire of die drawing finishing conventional annealing in well-known shaft furnace with nitrogen protection, 690 ℃ of temperature are closed heating power supply behind the insulation 4h, come out of the stove when furnace temperature drops to below 300 ℃.Adopt N
2Protection is to prevent that the flat wire surface from producing decarburization, and insulation 4h allows the flat wire Internal and external cycle reach same temperature as far as possible, and namely temperature is even, makes to process rear flat wire even intensity.
Embodiment 2
The described engine stretching wheel of the present embodiment is 3.9 ± 0.04 * 16.0 ± 0.08mm with flat wire thickness, and both sides are the flat wire of free circular arc, and its processing method may further comprise the steps:
(1) material is prepared: diameter 12.0mm60Si2Mn steel alloy wire rod is processed through acid washing phosphorization, pulled to diameter 10.8 ± 0.02mm, the wheel disc take-up.Wherein, pickling, phosphatization are treated to common process in the metallic article production; Drawing is adopted and is carried out drawing speed 40m/min at known 1/900 horizontal Dry drawing machine.Diaphragm capsule and reel water-cooled are sufficient in drawing process, and the mould cooling is good, and whole dish steel wire is end to end in the margin of tolerance, and is namely not overproof; It is good that drawing goes out the steel wire linearity, and steel wire can enter rolling mill guiding smoothly and do not rub and hinder steel wire when being convenient to hot rolling.
(2) hot rolling: diameter 10.8mm is arrived steel wire heating to 1050 ℃ with the 10m/min firing rate card piezoelectric voltage 39.0V through the round silk of the 60Si2Mn of wheel disc take-up by the card electricity.Described power on heating be with one of the plumbous liquid bath of two thawings as anodal, another is negative pole.450 ± 1 ℃ of anodal lead bath temperature, 550 ± 2 ℃ of negative pole lead bath temperature.Adopt the electric this mode firing rate of card fast, the thermal efficiency is high, and surface oxidation is few, and the steel wire grain structure is thin.Also can adopt traditional diamond heating, but this mode speed is slow, the thermal efficiency is low, and the Steel Wire Surface oxidation is serious, easily decarburization, and the steel wire grain structure is thick, can not satisfy production requirement.Roll thickness 4.4 ± 0.1mm, the flat wire of width 16.6 ± 0.10mm through duo mill a time.Milling train adopts diameter 220mm duo mill, under the automatic pressing, and drafts 6.4mm, mill speed is 10.0m/min.Then use the wheel disc take-up.The simple two rolling control equipments of rolling employing, operation is convenient; Adopt under the automatic pressing and can adjust at any time flat filament thickness and width, make it to satisfy technological requirement.
(3) line falling: with the thickness 4.4 ± 0.1mm of hot rolling, width 16.6 ± 0.10mm flat wire adopts backwinding machine will closely be received in line on the wheel disc to unclamp and unload, so that pickling, phosphatization surface treatment.
(4) surface treatment: the line that falls down is carried out conventional pickling, phosphatization surface treatment.Pickling, phosphatization are common process during metallic article is produced, and condition is provided for follow-up die drawing finishing is lubricated.
(5) die drawing finishing: will be through overpickling, phosphatization surface-treated flat hot rolled bar silk, on 1/900 horizontal type dry wire drawing machine, be that 3.9mm * 16.0m mould is drawn into finished product flat wire, drawing speed 40m/min by pass.And through detachable wheel disc take-up, unload dish.This technique is as the assurance of flat filament final size shape, and every dish flat wire end to end tolerance can be controlled within the scope of product requirement.
(6) gas shield annealing or vacuum drying oven annealing: will be through the flat wire of die drawing finishing, conventional annealing is processed in well-known shaft furnace with nitrogen protection, and 690 ℃ of temperature are closed heating power supply behind the insulation 4h, come out of the stove when furnace temperature drops to below 300 ℃.Adopt N
2Protection is to prevent that the flat wire surface from producing decarburization, and insulation 4h allows the flat wire Internal and external cycle reach same temperature as far as possible, and namely temperature is even, makes to process rear flat wire even intensity.
Claims (9)
1. an engine stretching wheel is characterized in that: may further comprise the steps with the processing method of wide spring flat steel silk:
Material is prepared: diameter 11.0～12.0mm carbon steel wire rod or steel alloy wire rod are pulled to diameter 10.0～10.8mm, the wheel disc take-up through surface treatment;
Hot rolling: diameter 10.0～10.8mm is passed through power on heating through the circle silk of wheel disc take-up, make wire temperature reach 900～1100 ℃ with 6.0～12.0m/s firing rate, once roll thickness 3.4～4.5mm through milling train, width 16.5～17.0mm, and through the wheel disc take-up;
Line falling: with the thickness 3.4～4.5mm of hot rolling, loose ring unloads on width 16.5～17.0mm flat filament trailing wheel;
Surface treatment: the line that loose ring is unloaded carries out the acid washing phosphorization surface treatment;
Finishing die drawing: will be drawn into product size through acid washing phosphorization surface-treated hot rolling flat filament, and through detachable wheel disc take-up, unload dish;
Gas shield annealing: will heat-treat through the flat wire of die drawing finishing 650～720 ℃ of annealing temperatures, insulation 2～5h.
2. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, and it is characterized in that: in the described material preparation process, drawing is carried out at 1/900 Dry drawing machine, drawing speed 30～60m/min.
3. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, it is characterized in that: in the described hot rolling, power on heating with one of the plumbous liquid bath of two thawings as anodal, one as negative pole, 400～530 ℃ of anodal lead bath temperature, 450～550 ℃ of negative pole lead bath temperature.
4. engine stretching wheel according to claim 1 is characterized in that with the processing method of wide spring flat steel silk: in the described hot-rolled step, and card piezoelectric voltage 30.0～40.0V, the steel wire heating temperature is 900～1100 ℃.
5. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, it is characterized in that: in the described hot-rolled step, hot rolling is adopted under the duo mill automatic pressing, depress thickness 6.2～7.0mm, mill speed is 7～12m/min, can once roll into the flat wire of thickness 3.4～4.5mm, width 16.3～17.0mm.
6. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, it is characterized in that: in the described line falling step, the line that the method for employing backwinding machine or artificial line falling will be received on the wheel disc unclamps, and then carries out conventional pickling, the phosphatization surface treatment.
7. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, it is characterized in that: in the described finishing die drawing step, die drawing is to carry out drawing speed 30～50m/min at the 1/900 horizontal or vertical dry-type wire drawing machine of drawing block diameter 560～900mm.
8. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk; it is characterized in that: in the described gas shield annealing steps, 650～730 ℃ of temperature are carried out in annealing at shaft furnace; insulation 2～4.5h, furnace temperature drops to and is lower than 300 ℃ and comes out of the stove.
9. engine stretching wheel according to claim 1 is with the processing method of wide spring flat steel silk, and it is characterized in that: in the described gas shield annealing steps, protective gas is N
2Or CO
2
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734324A (en) * | 2016-12-28 | 2017-05-31 | 东莞市科力钢铁线材有限公司 | The motor spring production and processing technology of ultra-wide thickness rate rectangular lines |
| CN106868406A (en) * | 2014-06-11 | 2017-06-20 | 丹阳市凯鑫合金材料有限公司 | The resonant rod of lumber recovery RF device higher with invar cold-heading silk production method |
| CN107627078A (en) * | 2017-09-26 | 2018-01-26 | 德清广汇金属材料有限公司 | A kind of preparation method of tire back-up ring raw material |
| CN108097738A (en) * | 2017-12-12 | 2018-06-01 | 无锡广兴东茂科技有限公司 | A kind of production technology of automobile engine gear ring shaped steel |
| CN108787965A (en) * | 2018-06-29 | 2018-11-13 | 江阴市钧益特种钢丝科技有限公司 | Textile equipment line needle band steel vermicelli production technique |
| CN111036697A (en) * | 2019-12-27 | 2020-04-21 | 宁夏中能恒力钢丝绳有限公司 | Production method of Z-shaped special-shaped steel wire |
| CN113102544A (en) * | 2021-03-29 | 2021-07-13 | 江苏兄弟合金有限公司 | Rolling process of high-precision electrothermal alloy flat wire |
| CN114309122A (en) * | 2021-11-22 | 2022-04-12 | 铃木加普腾钢丝（苏州）有限公司 | Forming process of irregular polygonal oil quenching steel wire of automobile clutch |
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Cited By (12)
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|---|---|---|---|---|
| CN106868406A (en) * | 2014-06-11 | 2017-06-20 | 丹阳市凯鑫合金材料有限公司 | The resonant rod of lumber recovery RF device higher with invar cold-heading silk production method |
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| CN107627078A (en) * | 2017-09-26 | 2018-01-26 | 德清广汇金属材料有限公司 | A kind of preparation method of tire back-up ring raw material |
| CN108097738A (en) * | 2017-12-12 | 2018-06-01 | 无锡广兴东茂科技有限公司 | A kind of production technology of automobile engine gear ring shaped steel |
| CN108787965A (en) * | 2018-06-29 | 2018-11-13 | 江阴市钧益特种钢丝科技有限公司 | Textile equipment line needle band steel vermicelli production technique |
| CN111036697A (en) * | 2019-12-27 | 2020-04-21 | 宁夏中能恒力钢丝绳有限公司 | Production method of Z-shaped special-shaped steel wire |
| CN113102544A (en) * | 2021-03-29 | 2021-07-13 | 江苏兄弟合金有限公司 | Rolling process of high-precision electrothermal alloy flat wire |
| CN113102544B (en) * | 2021-03-29 | 2022-11-29 | 江苏兄弟合金有限公司 | Rolling process of high-precision electrothermal alloy flat wire |
| CN114309122A (en) * | 2021-11-22 | 2022-04-12 | 铃木加普腾钢丝（苏州）有限公司 | Forming process of irregular polygonal oil quenching steel wire of automobile clutch |
| CN114309122B (en) * | 2021-11-22 | 2024-01-23 | 铃木加普腾钢丝（苏州）有限公司 | Forming process of irregular polygonal oil quenching steel wire of automobile clutch |
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Application publication date: 20131023 |