CN1337288A - Manufacture of timing gear for engine in light vehicle - Google Patents
Manufacture of timing gear for engine in 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
- manufacture
- engine
- light vehicle
- 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.)
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The present invention relates to a manufacture method of light car engine timing gear. It mainly adopts glow ion azotizing process to raise gear surface hardness and wearability, eliminate pitting surface of gear, raise quality of gear and prolong service life of gear.
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 | Manufacture of timing gear for engine in light vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115941 CN1337288A (en) | 2000-08-05 | 2000-08-05 | Manufacture of timing gear for engine in 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 | Manufacture of timing gear for engine in 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 |