CN103042358A - Method for manufacturing universal joint for automobile - Google Patents
Method for manufacturing universal joint for automobile Download PDFInfo
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- CN103042358A CN103042358A CN2012103337164A CN201210333716A CN103042358A CN 103042358 A CN103042358 A CN 103042358A CN 2012103337164 A CN2012103337164 A CN 2012103337164A CN 201210333716 A CN201210333716 A CN 201210333716A CN 103042358 A CN103042358 A CN 103042358A
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Abstract
The invention discloses a method for manufacturing a universal joint for an automobile. The method comprises the following steps of preparing and casting a rod material by weight, wherein the rod material comprises C greater than or equal to 0.27% and less than or equal to 0.34%, Si greater than or equal to 0.15% and less than or equal to 0.35%, Mn greater than or equal to 0.71% and less than or equal to 0.91%, P greater than or equal to 0.15% and less than or equal to 0.25%, S greater than or equal to 0.018% and less than or equal to 0.025%, Cr greater than or equal to 0.71% and less than or equal to 0.95%, Mo greater than or equal to 0.30% and less than or equal to 0.40%, Ni greater than or equal to 1.60% and less than or equal to 2.20%, Cu greater than or equal to 0.10% and less than or equal to 0.20%, and the balance Fe and impurities. The method adopts a cool temperature finish forge forming method, a rod material forging stock is subjected to cold forging and preliminary shaping, preheated to 200-250 DEG C, dipped into aquadag and then heated to 800-900 DEG C, and subjected to warm forging shaping. The method is convenient to manufacture, high in efficiency, easy to forge and form, good in strength of a forged universal joint, long in service life, safe and reliable and suitable for large-scale production of various models of universal joints.
Description
Technical field
The present invention relates to the manufacture method of universal joint, specifically belong to the manufacture method that a kind of automobile is used universal joint.
Background technology
In automotive transmission and other system, in order to realize the transmission of power between the frequent rotating shaft that changes of some axes intersect or relative position, must adopt universal driving device.Universal driving device generally is comprised of universal joint and drive shaft, sometimes also intermediate support will be arranged, between the speed changer and drive axle of engine behind front wheel rear wheel drive truck.When distant between speed changer and the drive axle, power transmission shaft should be divided into two sections even multistage, and add intermediate support.Between the transfer gear of many shaft-driven automobiles and the drive axle or between drive axle and the drive axle.Because the distortion of vehicle frame can cause between two drive disk assemblies that the mutual alignment changes between axis.This product of large batch of production, large with labor intensity of operating staff, product quality is inappropriate this technique of using entirely with manual control, labour-intensive technology, production efficiency is very low.
Summary of the invention
The purpose of this invention is to provide a kind of automobile manufacture method of universal joint, base is convenient, and efficient is high, and forging molding is easy, and the universal joint intensity that forges is good, and long service life is safe and reliable, is applicable to the production in enormous quantities of the universal joint of various models.
Technical scheme of the present invention is as follows:
A kind of automobile manufacture method of universal joint has following steps:
A) preparation and casting have the bar of following percentage by weight: 0.27%≤C≤0.34%, 0.15≤Si≤0.35%, 0.71%≤Mn≤0.91%, 0.15≤P≤0.25%, 0.018≤S≤0.025%, 0.71%≤Cr≤0.95%, 0.30%≤Mo≤0.40%, 1.60≤Ni≤2.20%, 0.10≤Cu≤0.20%, surplus is Fe and inevitable impurity, and the bar temperature of casting is down to 300 ℃, is heated to 670-760 ℃ again, be incubated 3-5 hour, stove is chilled to 300 ℃, is incubated 4 hours, is heated to 650-760 ℃ again, be incubated 10 hours, be cooled to 400 ℃ with 50 ℃/hour, again with 20 ℃/hour, be cooled to 140 ℃;
B), adopt cold temperature precision forging forming method, concrete technology is with bar forging stock cold forging preform, is preheated to 200 ℃～250 ℃, soaks aquadag and is heated to 800 ℃～900 ℃ again, carries out warm forging and is shaped;
C) the described base substrate that generates in step b) is heated to 980 ℃ and be incubated 1-2h, and oil cooling does not reheat to 680 ℃-750 ℃ temperature range and is incubated 2h to not being higher than after 100 ℃, afterwards water-cooled; Through after the temper, head with universal joint is heated to 320-380 ℃ again, be incubated 4-5 hour, then the cooling processing of spraying, the afterbody of universal joint is incubated 6-8 hour at 900-1020 ℃, then air cooling, last universal joint middle part heat again to temperature be 160～180 ℃, be incubated 2-3 hour, put into iron case cooling in heap;
D) base substrate that generates in the step c) is carried out roughing;
E) phosphatization is processed, be 280-300 ℃ with workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, the employing pH value is 8 surface conditioner processing 1-2min, after dripping empty 1-2min, adopt bonderite to process 15-20min, after dripping empty 1-2min, adopt clear water to clean 1-2min again, after dripping again empty 1-2min, process 0.5-1min workpiece is placed 78-100 ℃ hot water;
F) carry out machined to make described universal joint to generating base substrate in the step e).
The head of described step c) universal joint base substrate is heated to 350 ℃, is incubated 4.5 hours, the cooling processing of then spraying, the afterbody of universal joint is incubated 7 hours, then air cooling at 980 ℃, last universal joint middle part heat again to temperature be 170 ℃, be incubated 2.5 hours, put into iron case cooling in heap.
Base of the present invention is convenient, and efficient is high, and forging molding is easy, and the universal joint intensity that forges is good, and long service life is safe and reliable, is applicable to the production in enormous quantities of the universal joint of various models.
The mechanical property of universal joint of the present invention: tensile strength Rm 〉=890Mpa, yield strength Re 〉=790Mpa, percentage elongation A 〉=14%, mechanical property Z 〉=30%, impact absorbing energy Akv 〉=57J.
The specific embodiment
A kind of automobile manufacture method of universal joint has following steps:
A) preparation and casting have the bar of following percentage by weight: 0.27%≤C≤0.34%, 0.15≤Si≤0.35%, 0.71%≤Mn≤0.91%, 0.15≤P≤0.25%, 0.018≤S≤0.025%, 0.71%≤Cr≤0.95%, 0.30%≤Mo≤0.40%, 1.60≤Ni≤2.20%, 0.10≤Cu≤0.20%, surplus is Fe and inevitable impurity, and the bar temperature of casting is down to 300 ℃, is heated to 670-760 ℃ again, be incubated 3-5 hour, stove is chilled to 300 ℃, is incubated 4 hours, is heated to 650-760 ℃ again, be incubated 10 hours, be cooled to 400 ℃ with 50 ℃/hour, again with 20 ℃/hour, be cooled to 140 ℃;
B), adopt cold temperature precision forging forming method, concrete technology is with bar forging stock cold forging preform, is preheated to 200 ℃～250 ℃, soaks aquadag and is heated to 800 ℃～900 ℃ again, carries out warm forging and is shaped;
C) the described base substrate that generates in step b) is heated to 980 ℃ and be incubated 1-2h, and oil cooling does not reheat to 680 ℃-750 ℃ temperature range and is incubated 2h to not being higher than after 100 ℃, afterwards water-cooled; Through after the temper, the head with the universal joint base substrate is heated to 350 ℃ again, is incubated 4.5 hours, the cooling processing of then spraying, the afterbody of universal joint is incubated 7 hours, then air cooling at 980 ℃, last universal joint middle part heat again to temperature be 170 ℃, be incubated 2.5 hours, put into iron case cooling in heap;
D) base substrate that generates in the step c) is carried out roughing;
E) phosphatization is processed, be 280-300 ℃ with workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, the employing pH value is 8 surface conditioner processing 1-2min, after dripping empty 1-2min, adopt bonderite to process 15-20min, after dripping empty 1-2min, adopt clear water to clean 1-2min again, after dripping again empty 1-2min, process 0.5-1min workpiece is placed 78-100 ℃ hot water;
F) carry out machined to make described universal joint to generating base substrate in the step e).
The head of described step e) universal joint base substrate is heated to 350 ℃, is incubated 4.5 hours, the cooling processing of then spraying, the afterbody of universal joint is incubated 7 hours, then air cooling at 980 ℃, last universal joint middle part heat again to temperature be 170 ℃, be incubated 2.5 hours, put into iron case cooling in heap.
Claims (2)
1. an automobile is characterized in that having following steps with the manufacture method of universal joint:
A) preparation and casting have the bar of following percentage by weight: 0.27%≤C≤0.34%, 0.15≤Si≤0.35%, 0.71%≤Mn≤0.91%, 0.15≤P≤0.25%, 0.018≤S≤0.025%, 0.71%≤Cr≤0.95%, 0.30%≤Mo≤0.40%, 1.60≤Ni≤2.20%, 0.10≤Cu≤0.20%, surplus is Fe and inevitable impurity, and the bar temperature of casting is down to 300 ℃, is heated to 670-760 ℃ again, be incubated 3-5 hour, stove is chilled to 300 ℃, is incubated 4 hours, is heated to 650-760 ℃ again, be incubated 10 hours, be cooled to 400 ℃ with 50 ℃/hour, again with 20 ℃/hour, be cooled to 140 ℃;
B), adopt cold temperature precision forging forming method, concrete technology is with bar forging stock cold forging preform, is preheated to 200 ℃～250 ℃, soaks aquadag and is heated to 800 ℃～900 ℃ again, carries out warm forging and is shaped;
C) the described base substrate that generates in step b) is heated to 980 ℃ and be incubated 1-2h, and oil cooling does not reheat to 680 ℃-750 ℃ temperature range and is incubated 2h to not being higher than after 100 ℃, afterwards water-cooled; Through after the temper, head with universal joint is heated to 320-380 ℃ again, be incubated 4-5 hour, then the cooling processing of spraying, the afterbody of universal joint is incubated 6-8 hour at 900-1020 ℃, then air cooling, last universal joint middle part heat again to temperature be 160～180 ℃, be incubated 2-3 hour, put into iron case cooling in heap;
D) base substrate that generates in the step c) is carried out roughing;
E) phosphatization is processed, be 280-300 ℃ with workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, the employing pH value is 8 surface conditioner processing 1-2min, after dripping empty 1-2min, adopt bonderite to process 15-20min, after dripping empty 1-2min, adopt clear water to clean 1-2min again, after dripping again empty 1-2min, process 0.5-1min workpiece is placed 78-100 ℃ hot water;
F) carry out machined to make described universal joint to generating base substrate in the step e).
According to claim 1 described automobile with the manufacture method of universal joint, it is characterized in that, the head of described step c) universal joint base substrate is heated to 350 ℃, is incubated 4.5 hours, the cooling processing of then spraying, the afterbody of universal joint is at 980 ℃, be incubated 7 hours, air cooling then, last universal joint middle part heat again to temperature be 170 ℃, be incubated 2.5 hours, put into iron case cooling in heap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103337164A CN103042358A (en) | 2012-09-11 | 2012-09-11 | Method for manufacturing universal joint for automobile |
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| CN2012103337164A CN103042358A (en) | 2012-09-11 | 2012-09-11 | Method for manufacturing universal joint for automobile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894800A (en) * | 2014-01-26 | 2014-07-02 | 泰尔重工股份有限公司 | Candan universal joint fork processing method and fixture of candan universal joint fork |
| CN104588999A (en) * | 2015-01-26 | 2015-05-06 | 李黄权 | Method for machining universal ball pedestal |
| CN106011597A (en) * | 2016-07-28 | 2016-10-12 | 董超超 | Die steel capable of detecting integrity thereof |
| CN110977357A (en) * | 2019-12-25 | 2020-04-10 | 台州浩尔工业有限公司 | Bell-shaped shell for universal joint and processing technology |
| CN111043178A (en) * | 2019-12-16 | 2020-04-21 | 台州浩尔工业有限公司 | Universal joint outer ball cage and machining process |
| CN115582678A (en) * | 2022-11-23 | 2023-01-10 | 浙江钱富万向节有限公司 | Manufacturing method of heavy universal joint cross shaft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1337331A (en) * | 2000-08-04 | 2002-02-27 | 江苏太平洋精密锻造有限公司 | Process of making blank of inner spider for constant-speed cardan of automobile |
| CN101618508A (en) * | 2009-07-30 | 2010-01-06 | 扬州东升汽车零部件制造有限公司 | Method for producing vehicle-used stabilizer bar with high corrosion resistance |
| CN101722406A (en) * | 2009-12-31 | 2010-06-09 | 上海新闵重型锻造有限公司 | Method for manufacturing pin shaft through forging |
| CN103014726A (en) * | 2012-12-15 | 2013-04-03 | 衡阳风顺车桥有限公司 | Heat treatment method of universal joint cross shaft |
-
2012
- 2012-09-11 CN CN2012103337164A patent/CN103042358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337331A (en) * | 2000-08-04 | 2002-02-27 | 江苏太平洋精密锻造有限公司 | Process of making blank of inner spider for constant-speed cardan of automobile |
| CN101618508A (en) * | 2009-07-30 | 2010-01-06 | 扬州东升汽车零部件制造有限公司 | Method for producing vehicle-used stabilizer bar with high corrosion resistance |
| CN101722406A (en) * | 2009-12-31 | 2010-06-09 | 上海新闵重型锻造有限公司 | Method for manufacturing pin shaft through forging |
| CN103014726A (en) * | 2012-12-15 | 2013-04-03 | 衡阳风顺车桥有限公司 | Heat treatment method of universal joint cross shaft |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894800A (en) * | 2014-01-26 | 2014-07-02 | 泰尔重工股份有限公司 | Candan universal joint fork processing method and fixture of candan universal joint fork |
| CN103894800B (en) * | 2014-01-26 | 2016-03-30 | 泰尔重工股份有限公司 | The processing method of candan universal joint jaw and fixture thereof |
| CN104588999A (en) * | 2015-01-26 | 2015-05-06 | 李黄权 | Method for machining universal ball pedestal |
| CN104588999B (en) * | 2015-01-26 | 2017-02-01 | 李黄权 | Method for machining universal ball pedestal |
| CN106011597A (en) * | 2016-07-28 | 2016-10-12 | 董超超 | Die steel capable of detecting integrity thereof |
| CN111043178A (en) * | 2019-12-16 | 2020-04-21 | 台州浩尔工业有限公司 | Universal joint outer ball cage and machining process |
| CN111043178B (en) * | 2019-12-16 | 2020-11-24 | 台州浩尔工业有限公司 | Universal joint outer ball cage and machining process |
| CN110977357A (en) * | 2019-12-25 | 2020-04-10 | 台州浩尔工业有限公司 | Bell-shaped shell for universal joint and processing technology |
| CN110977357B (en) * | 2019-12-25 | 2020-09-04 | 台州浩尔工业有限公司 | Bell-shaped shell for universal joint and processing technology |
| CN115582678A (en) * | 2022-11-23 | 2023-01-10 | 浙江钱富万向节有限公司 | Manufacturing method of heavy universal joint cross shaft |
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Application publication date: 20130417 |