CN1337288A - Method for manufacturing timing gear of engine of light vehicle - Google Patents
Method for manufacturing timing gear of engine of light vehicle Download PDFInfo
- Publication number
- CN1337288A CN1337288A CN 00115941 CN00115941A CN1337288A CN 1337288 A CN1337288 A CN 1337288A CN 00115941 CN00115941 CN 00115941 CN 00115941 A CN00115941 A CN 00115941A CN 1337288 A CN1337288 A CN 1337288A
- Authority
- CN
- China
- Prior art keywords
- gear
- engine
- light vehicle
- timing gear
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000005121 nitriding Methods 0.000 claims abstract description 9
- 238000003754 machining Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000008246 gaseous mixture Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 206010044038 Tooth erosion Diseases 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to a method for manufacturing a timing gear of a light vehicle engine, which mainly adopts a glow ion nitriding process, thereby improving the surface hardness and the wear resistance of the gear, eliminating the tooth surface pitting, improving the quality of the gear and prolonging the service life.
Description
The present invention relates to a kind of manufacture of timing gear for engine in light vehicle.
Existing manufacture of timing gear for engine in light vehicle adopting process is tooth base processing → tooth Profile Machining → phosphatization → antirust technology, is that spot corrosion is serious but a fatal shortcoming is arranged, and directly influences the service life of gear.
The object of the invention: formulate appropriate technology, solve rippling, peel off problem, improve gear quality and service life.
Technical scheme of the present invention: a kind of manufacture of timing gear for engine is characterized in that: the processing technology of described timing gears is: tooth base processing → tooth Profile Machining → nitrogenize → phosphatization → antirust processing, wherein nitriding process is the glow discharge nitriding method, adopts N
2, H
2, gaseous mixture and C
3H
8Gas, concrete nitriding process step is:
A, beginning 6h/ open to 540～560 ℃;
B、(1)540～560℃×(30％N
2+70％H
2)×6h；
(2)540～560℃×(30％N
2+70％H
2+1％C
3H
8)×4h；
(3)540～560℃×(35％N
2+65％H
2)×2h；
N is adopted in C, cooling
2
Advantage of the present invention: by glow discharge nitriding, improved flank of tooth corrosion resistance, eliminated the rippling phenomenon, improved the quality and the service life of gear.
Describe the present invention in detail below in conjunction with embodiment.
At first carry out the processing of tooth base: first roughing is modified, quenching and tempering hardness control HB225～250, fine finishining again; Then carry out tooth Profile Machining: gear hobbing post-tensioning keyway is shaving again, and shaving adopts the slow-speed of revolution: 127r/mm, and little feeding length feed speed is 0.5m/mm, polishing 4 times; Clean with gasoline then, thoroughly decontamination enters the nitriding process flow process: adopt N after the oven dry in 200 ℃～250 ℃ tempering furnaces
2, H
2Gaseous mixture and C
3H
8Carry out glow discharge nitriding, concrete steps are:
A, beginning 6h/ open to 540～560 ℃;
B、(1)540～560℃×(30％N
2+70％H
2)×6h；
(2)540～560℃×(30％N
2+70％H
2+1％C
3H
8)×4h；
(3)540～560℃×(35％N
2+65％H
2)×2h；
Adopt N when C, cooling
2Then in the time of 50～80 ℃, in phosphatization liquid, soaked 10～15 minutes, at last product is carried out rust prevention packaging.This product is carried out every performance survey inspection, the gear wearability strengthens as a result, no point corrosion, the problem that solved rippling fully, comes off.
Claims (3)
1, a kind of manufacture of timing gear for engine in light vehicle is characterized in that: the processing technology of described timing gears is: tooth base processing → tooth Profile Machining → nitrogenize → phosphatization → antirust processing, wherein nitriding process is the glow discharge nitriding method, adopts N
2, H
2Gaseous mixture and C
3H
8Gas specifically divides three steps.
A, beginning 6h/ open to 540～560 ℃;
B、(1)540～560℃×(30％N
2+70％H
2)×6h；
(2)540～560℃×(30％N
2+70％H
2+1％C
3H
8)×4h；
(3)540～560℃×(30％N
2+65％H
2)×6h；
N is adopted in C, cooling
2
2, manufacture method as claimed in claim 1 is characterized in that: described tooth base processing comprises roughing, modified, fine finishining, and wherein quenching and tempering hardness is controlled at HB225～250.
3, manufacture method as claimed in claim 1 or 2 is characterized in that: described tooth Profile Machining comprises gear hobbing, draws keyway, shaving, and wherein the shaving rotating speed is 127r/min, and length feed speed is 0.5m/min, carries out polishing 4 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115941 CN1337288A (en) | 2000-08-05 | 2000-08-05 | Method for manufacturing timing gear of engine of light vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115941 CN1337288A (en) | 2000-08-05 | 2000-08-05 | Method for manufacturing timing gear of engine of light vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1337288A true CN1337288A (en) | 2002-02-27 |
Family
ID=4585381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00115941 Pending CN1337288A (en) | 2000-08-05 | 2000-08-05 | Method for manufacturing timing gear of engine of light vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1337288A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950441A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Production method for timing gear for engines |
| CN103056628A (en) * | 2012-10-27 | 2013-04-24 | 富莱茵汽车部件有限公司 | Crankshaft timing gear manufacturing method |
| CN103084810A (en) * | 2012-11-13 | 2013-05-08 | 合肥市田源精铸有限公司 | Method for manufacturing gear for environment-friendly fuel feed pump |
| CN103921085A (en) * | 2014-04-09 | 2014-07-16 | 马鞍山市兴隆铸造有限公司 | Timing gear manufacturing technique |
-
2000
- 2000-08-05 CN CN 00115941 patent/CN1337288A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950441A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Production method for timing gear for engines |
| CN103056628A (en) * | 2012-10-27 | 2013-04-24 | 富莱茵汽车部件有限公司 | Crankshaft timing gear manufacturing method |
| CN103056628B (en) * | 2012-10-27 | 2016-09-28 | 富莱茵汽车部件有限公司 | A kind of crankshaft timing gear preparation method |
| CN102950441B (en) * | 2012-10-27 | 2016-10-19 | 富莱茵汽车部件有限公司 | A kind of electromotor timing gears preparation method |
| CN103084810A (en) * | 2012-11-13 | 2013-05-08 | 合肥市田源精铸有限公司 | Method for manufacturing gear for environment-friendly fuel feed pump |
| CN103921085A (en) * | 2014-04-09 | 2014-07-16 | 马鞍山市兴隆铸造有限公司 | Timing gear manufacturing technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |