JPS63212711A - バルブスプリングシートの製造方法 - Google Patents
バルブスプリングシートの製造方法Info
- Publication number
- JPS63212711A JPS63212711A JP3533688A JP3533688A JPS63212711A JP S63212711 A JPS63212711 A JP S63212711A JP 3533688 A JP3533688 A JP 3533688A JP 3533688 A JP3533688 A JP 3533688A JP S63212711 A JPS63212711 A JP S63212711A
- Authority
- JP
- Japan
- Prior art keywords
- spring seat
- valve spring
- inner peripheral
- pulp
- peripheral surface
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000005255 carburizing Methods 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3533688A JPS63212711A (ja) | 1988-02-19 | 1988-02-19 | バルブスプリングシートの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3533688A JPS63212711A (ja) | 1988-02-19 | 1988-02-19 | バルブスプリングシートの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63212711A true JPS63212711A (ja) | 1988-09-05 |
| JPS644046B2 JPS644046B2 (enExample) | 1989-01-24 |
Family
ID=12438996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3533688A Granted JPS63212711A (ja) | 1988-02-19 | 1988-02-19 | バルブスプリングシートの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212711A (enExample) |
-
1988
- 1988-02-19 JP JP3533688A patent/JPS63212711A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS644046B2 (enExample) | 1989-01-24 |
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