CN1598003A - Preprocessing technology for processing integral key shaft - Google Patents
Preprocessing technology for processing integral key shaft Download PDFInfo
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- CN1598003A CN1598003A CNA2004100853585A CN200410085358A CN1598003A CN 1598003 A CN1598003 A CN 1598003A CN A2004100853585 A CNA2004100853585 A CN A2004100853585A CN 200410085358 A CN200410085358 A CN 200410085358A CN 1598003 A CN1598003 A CN 1598003A
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- splined shaft
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- preprocessing technology
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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
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Abstract
The invention realtes to a preprocessing technology for processing integral key shaft, accomplished by the following steps: induction annealing area of integral key shaft using electromagnetic induction to be heated to above A[C3] over 50-80 degree for incubation of 1-2 hours, namely slowly cooling to 300 degree in asbestos drum and then air colling to narmal temperature. The surface hardness can be greatly decreased by surface induction annealing treatment, at the same time the uniformity of hardness is increased and the grain can be refined (grain size 8), and the uniformity of structure can be advanced, therefore the processability of integral key shaft can be greatly improved, the process quality thereof can be advanced, the tool life is increased by more than 5 times, the processing cost is saved, and the production effciency and economy benefit can also be obviously generated. Compared with modulator procedure, the said technology saves proscessing cost and greatly increases production timeefficiency.
Description
Technical field
The present invention relates to the thermal treatment process of splined shaft, mainly is a kind of splined shaft preprocessing technology for processing.
Background technology
Driving-shaft assembly is made up of a plurality of parts, and wherein splined shaft is one of most important driving parts commonly used, requires to have certain intensity and hardness.For guaranteeing the intensity of splined shaft, its blank generally need carry out whole modified thermal treatment (also need carry out hard surfacing after most splined shaft processing handles), and modified back hardness general requirement is between HB241-302.Splined shaft blank part by modifier treatment after, because of the higher hardness of its blank after modified, hardness is inhomogeneous, matrix grain is organized undesirable, the hardness scattered error of part is also bigger, so the overproof scrap products of spline precision often occurs when the rolling spline, the tool wear of rolling simultaneously is serious, scrap the frequency aggravation of cutter, bring very big inconvenience to machining.Because of the cutter expense is relatively more expensive, cost increases greatly, and produces the turnover time and elongate, and production efficiency reduces, and end product quality is difficult to guarantee.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency and a kind of splined shaft preprocessing technology for processing is provided, can obviously improve the splined shaft machinability, improve the spline processing quality, improve cutter life more than 5 times by this technology.
The technical solution adopted for the present invention to solve the technical problems.This splined shaft preprocessing technology for processing, mainly finished by following processing step: the induction annealing zone of splined shaft blank utilizes the electromagnetic induction surface to be heated to above A
C3More than 50 ℃--80 ℃ of temperature, insulation 1-2 hour promptly slowly cool in asbestos cylinder about 300 ℃, and then air cooling is to the normal temperature state.
The effect that the present invention is useful is: splined shaft preprocessing technology for processing of the present invention adopts the surface induction annealing process to handle, by the surface induction anneal, both reduced surface hardness (can be reduced to the pairing hardness allowance below nominal size of conventional normalizing process scope) greatly, improve uniformity of hardness (in same 10HB of hardness scattered error, in a collection of 20HB) crystal grain thinning (8 grades of grain fineness numbers) again, improve homogeneity of structure, thereby obviously improve the spline machinability, improve the spline processing quality, improve cutter life more than 5 times, also tooling cost can be saved, tangible production efficiency and economic benefit can be produced.This technology is compared with modified operation, saved tooling cost, improved the production timeliness of workpiece greatly, do concrete a comparison: in price, each workpiece annealing operation is than about 1 yuan of modified operation saving, and just can finish in the modified 2-4 of needs hour, but annealing only needs a 3-5 just can process two second, accelerate the time of product circulation, improved production efficiency and economic benefit.
Description of drawings
Fig. 1 is the structural representation before the splined shaft processing;
Reference numeral: splined shaft 1, the induction annealing zone 1-1 of splined shaft;
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Embodiment 1: splined shaft preprocessing technology for processing of the present invention adopts the surface induction annealing process to handle, the blank of splined shaft 1 adopts the SAE1045 steel of USS, equipment adopts medium frequency quenching machine GK1080A, concrete technology is: medium frequency quenching machine setting power is 80-90 kilowatt, set the 10-15 hertz on the frequency transformer, set the miles of relative movement of blank, when induction annealing was handled, the induction annealing of general splined shaft zone 1-1 (being the spline working position) as shown in Figure 1.Blank treats that the top layer part induction heating of spline processing is to being higher than A
C3(being generally between 700-720 ℃) above 60 ℃ of temperature.This moment, transformer ratio was 12: 1, and the power of equipment operation is 80-90KW, the leading portion of induction annealing zone 1-1, induction coil from top to bottom moves, and translational speed is 5HZ, and in the end the 18mm translational speed is 4.5HZ, whole induction annealing is wanted the 2-3 time in second, is incubated 1.5 hours then; Promptly slowly cool in asbestos cylinder about 300 ℃, air cooling is to the normal temperature state again.Splined shaft surface hardness after the induction annealing is generally HB≤220, is beneficial to follow-up mach hardness requirement.
Induction annealing is a kind of novel splined shaft spline preprocessing technology for processing, makes full use of the induction heating effect, has that rate of heating is fast, temperature homogeneity good, the characteristics of heating surface non-scale.The splined shaft blank can be realized grain refining and homogenizing after handling through induction annealing, has avoided the uneven drawback of workpiece hardness height like this, can improve machinability, eliminate or the minimizing internal stress, prolong cutter life, and guaranteed the quality of product.After induction annealing, guaranteed that hobboing cutter mills the integrity of spline, improved the spline quality of stability, reduced the wearing and tearing and the mach scrap rate of cutter, brought certain economic value to production.Because of the raising of working (machining) efficiency, accelerated the production flow speed of part, avoided indivedual operations to pile up the phenomenon of part, make each manufacturing sector's Workpiece circulation unimpeded, kept the order of field management.
Embodiment 2: splined shaft preprocessing technology for processing of the present invention adopts the surface induction annealing process to handle, and the blank of splined shaft adopts No. 45 steel of GB, and concrete technology is: blank treats that the top layer part induction heating of spline processing is to being higher than A
C3More than 50 ℃ of temperature, the power of equipment operation is 80-90KW, the leading portion of induction annealing zone 1-1, induction coil from top to bottom moves, translational speed is 5HZ, in the end the 15mm translational speed is 4.5HZ.Be incubated 1 hour; Promptly slowly cool in asbestos cylinder about 300 ℃, air cooling is to the normal temperature state again.
Embodiment 3: splined shaft preprocessing technology for processing of the present invention adopts the surface induction annealing process to handle, and the blank of splined shaft adopts No. 45 steel of GB, and concrete technology is: blank treats that the top layer part induction heating of spline processing is to being higher than A
C3More than 80 ℃ of temperature, the power of equipment operation is 80-90KW, the leading portion of induction annealing zone 1-1, induction coil from top to bottom moves, translational speed is 5HZ, in the end the 20mm translational speed is 4.5HZ; Be incubated 2 hours, promptly slowly cool in asbestos cylinder about 300 ℃, air cooling is to the normal temperature state again.
Claims (5)
1, a kind of splined shaft preprocessing technology for processing is characterized in that: mainly finished by following processing step: induction annealing zone (1-1) induction heating of splined shaft (1) blank is to being higher than A
C3More than 50 ℃--80 ℃ of temperature, insulation 1-2 hour promptly slowly cool in asbestos cylinder about 300 ℃, and then air cooling is to the normal temperature state.
2, splined shaft preprocessing technology for processing according to claim 1 is characterized in that: mainly finished by following processing step: induction annealing zone (1-1) induction heating of splined shaft (1) blank is to being higher than A
C3More than 60 ℃ of temperature, be incubated 1.5 hours, promptly in asbestos cylinder, slowly cool to about 300 ℃, and then air cooling is to the normal temperature state.
3, splined shaft preprocessing technology for processing according to claim 1 is characterized in that: equipment adopts the medium frequency quenching machine, and the power of equipment operation is 80-90KW, and induction coil from top to bottom moves; The leading portion in induction annealing zone (1-1), translational speed are 5HZ, and in the end the 15-20mm translational speed is 4.5HZ.
4, splined shaft preprocessing technology for processing according to claim 1 and 2 is characterized in that: the blank of described splined shaft (1) adopts the SAE1045 steel of USS.
5, splined shaft preprocessing technology for processing according to claim 1 and 2 is characterized in that: the blank of described splined shaft (1) adopts No. 45 steel of GB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100853585A CN1313629C (en) | 2004-08-10 | 2004-10-13 | Preprocessing technology for processing integral key shaft |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410053588.3 | 2004-08-10 | ||
| CN200410053588 | 2004-08-10 | ||
| CNB2004100853585A CN1313629C (en) | 2004-08-10 | 2004-10-13 | Preprocessing technology for processing integral key shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598003A true CN1598003A (en) | 2005-03-23 |
| CN1313629C CN1313629C (en) | 2007-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100853585A Expired - Fee Related CN1313629C (en) | 2004-08-10 | 2004-10-13 | Preprocessing technology for processing integral key shaft |
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| Country | Link |
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| CN (1) | CN1313629C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766733A (en) * | 2012-08-08 | 2012-11-07 | 耿震宇 | Grain refinement method of forged steel cold roller |
| CN103111850A (en) * | 2013-01-06 | 2013-05-22 | 吉林大学 | Bionic coupling cast iron guide rail and manufacturing method thereof and regeneration method of waste machine tool guide rail |
| CN107955875A (en) * | 2017-11-23 | 2018-04-24 | 江阴市永兴机械制造有限公司 | A kind of splined shaft heating quenching technique |
| CN111468905A (en) * | 2020-05-08 | 2020-07-31 | 湖北坚丰科技股份有限公司 | Tooth broaching process for thin-wall internal spline shaft |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814434B (en) * | 2012-08-24 | 2014-04-23 | 西安交通大学 | Method for axially feeding, extruding, rolling and forming spline shaft by medium-frequency and high-frequency sensing heating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133814A (en) * | 1976-05-06 | 1977-11-09 | Koshuha Netsuren Kk | Process for lowwstrain quenching of shaft provided with mechanism for forced rotation |
| JPS58120724A (en) * | 1982-01-07 | 1983-07-18 | Toyota Motor Corp | Simultaneous treating method for rolling and quench hardening |
| RU2211867C2 (en) * | 2001-07-24 | 2003-09-10 | Акционерное общество открытого типа "Казанское моторостроительное производственное объединение" | Method of heat treatment of splined shafts |
-
2004
- 2004-10-13 CN CNB2004100853585A patent/CN1313629C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766733A (en) * | 2012-08-08 | 2012-11-07 | 耿震宇 | Grain refinement method of forged steel cold roller |
| CN103111850A (en) * | 2013-01-06 | 2013-05-22 | 吉林大学 | Bionic coupling cast iron guide rail and manufacturing method thereof and regeneration method of waste machine tool guide rail |
| CN107955875A (en) * | 2017-11-23 | 2018-04-24 | 江阴市永兴机械制造有限公司 | A kind of splined shaft heating quenching technique |
| CN111468905A (en) * | 2020-05-08 | 2020-07-31 | 湖北坚丰科技股份有限公司 | Tooth broaching process for thin-wall internal spline shaft |
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| Publication number | Publication date |
|---|---|
| CN1313629C (en) | 2007-05-02 |
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Owner name: HANGZHOU UNIVERSAL DRIVE SHAFT CO., LTD. Free format text: FORMER OWNER: WANXIANGQIANCHAO CO. LTD. Effective date: 20080725 |
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Effective date of registration: 20080725 Address after: Xiaoshan economic and Technological Development Zone, Hangzhou, Zhejiang Patentee after: HANGZHOU WANXIANG TRANSMISSION SHAFT Co.,Ltd. Address before: Xiaoshan economic and Technological Development Zone, Hangzhou, Zhejiang Patentee before: WANXIANG QIANCHAO Co.,Ltd. |
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Granted publication date: 20070502 Termination date: 20211013 |