JPH0476003B2 - - Google Patents
Info
- Publication number
- JPH0476003B2 JPH0476003B2 JP25620686A JP25620686A JPH0476003B2 JP H0476003 B2 JPH0476003 B2 JP H0476003B2 JP 25620686 A JP25620686 A JP 25620686A JP 25620686 A JP25620686 A JP 25620686A JP H0476003 B2 JPH0476003 B2 JP H0476003B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- hole
- core
- hollow
- removal member
- 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.)
- Expired
Links
- 239000011162 core material Substances 0.000 claims description 54
- 239000000463 material Substances 0.000 claims description 43
- 238000004519 manufacturing process Methods 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001192 hot extrusion Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000009721 upset forging Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Forging (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25620686A JPS63109207A (ja) | 1986-10-28 | 1986-10-28 | 中空エンジンバルブの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25620686A JPS63109207A (ja) | 1986-10-28 | 1986-10-28 | 中空エンジンバルブの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63109207A JPS63109207A (ja) | 1988-05-13 |
| JPH0476003B2 true JPH0476003B2 (en]) | 1992-12-02 |
Family
ID=17289392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25620686A Granted JPS63109207A (ja) | 1986-10-28 | 1986-10-28 | 中空エンジンバルブの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63109207A (en]) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010106093A (ko) * | 1999-02-12 | 2001-11-29 | 야마모토 사다오 | 중공 버섯형밸브 및 그 제조방법 |
| US6679478B2 (en) | 2000-07-17 | 2004-01-20 | Nittan Valve Co., Ltd. | Hollow poppet valve and method for manufacturing the same |
| JP2013044287A (ja) * | 2011-08-24 | 2013-03-04 | Fuji Oozx Inc | 中空エンジンバルブの製造方法及び製造装置 |
| CN110914520B (zh) | 2018-03-20 | 2021-11-16 | 日锻汽门株式会社 | 排气用中空提升阀 |
| WO2020100185A1 (ja) | 2018-11-12 | 2020-05-22 | 日鍛バルブ株式会社 | エンジンのポペットバルブの製造方法 |
| CN115697584A (zh) | 2020-03-30 | 2023-02-03 | 日锻株式会社 | 发动机的提升阀的制造方法 |
-
1986
- 1986-10-28 JP JP25620686A patent/JPS63109207A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63109207A (ja) | 1988-05-13 |
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