JPS5620101A - Automotive cam timing pulley and its production - Google Patents
Automotive cam timing pulley and its productionInfo
- Publication number
- JPS5620101A JPS5620101A JP9557279A JP9557279A JPS5620101A JP S5620101 A JPS5620101 A JP S5620101A JP 9557279 A JP9557279 A JP 9557279A JP 9557279 A JP9557279 A JP 9557279A JP S5620101 A JPS5620101 A JP S5620101A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- sintered
- hard
- anodic oxidation
- green compact
- 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
Landscapes
- Pulleys (AREA)
- Electrochemical Coating By Surface Reaction (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To improve abrasion resistance and reduce weight by forming a hard anodic oxidation film on the surface of a sintered pulley comprising an aluminum base sintered alloy.
CONSTITUTION: Wax for die lubrication is added at 0.5W2.0wt% to aluminum base alloy powder or mixed powder. The mixed powder is molded by compaction to a shape of a pulley in such a manner that all the portions of the green compact assume theoretical density ratios of 90W96%. After this green compact is dewaxed, it is sintered in a nitrogen gas atmosphere in which the atmosphere dew point during sintering is always kept within ±5°C in a range of -30W-50°C, and at a temperature within ±5°C of an optimum sintering temperature. The thus obtained sintered body is sized. Next, this sintered body of automotive timing pulley is formed on its surface with a hard (super hard) anodic oxidation film to thickness ≥7μ. Thereby, the pulley of sufficient durability is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54095572A JPS5835562B2 (en) | 1979-07-28 | 1979-07-28 | Automotive cam timing pulley and its manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54095572A JPS5835562B2 (en) | 1979-07-28 | 1979-07-28 | Automotive cam timing pulley and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5620101A true JPS5620101A (en) | 1981-02-25 |
JPS5835562B2 JPS5835562B2 (en) | 1983-08-03 |
Family
ID=14141301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54095572A Expired JPS5835562B2 (en) | 1979-07-28 | 1979-07-28 | Automotive cam timing pulley and its manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5835562B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58222269A (en) * | 1982-06-16 | 1983-12-23 | 日産自動車株式会社 | Locking and unlocking apparatus of lock |
JP4807689B2 (en) * | 2001-05-23 | 2011-11-02 | 株式会社ハーモニック・ドライブ・システムズ | Lubrication-type wave gear device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4837488A (en) * | 1971-09-13 | 1973-06-02 | ||
JPS4839336A (en) * | 1971-09-28 | 1973-06-09 | ||
JPS5137009A (en) * | 1974-09-26 | 1976-03-29 | Fujitsu Ltd | ARUMINIUMUKEISHOKETSUZAIRYO NO SEIZOHOHO |
JPS5253251U (en) * | 1975-10-16 | 1977-04-16 | ||
JPS52153806A (en) * | 1976-06-17 | 1977-12-21 | Fujitsu Ltd | Production of aluminum-base sintered alloy |
JPS5375107A (en) * | 1976-12-15 | 1978-07-04 | Fujitsu Ltd | Manufacture of sintered aluminum alloy |
JPS53107780U (en) * | 1977-02-07 | 1978-08-29 |
-
1979
- 1979-07-28 JP JP54095572A patent/JPS5835562B2/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4837488A (en) * | 1971-09-13 | 1973-06-02 | ||
JPS4839336A (en) * | 1971-09-28 | 1973-06-09 | ||
JPS5137009A (en) * | 1974-09-26 | 1976-03-29 | Fujitsu Ltd | ARUMINIUMUKEISHOKETSUZAIRYO NO SEIZOHOHO |
JPS5253251U (en) * | 1975-10-16 | 1977-04-16 | ||
JPS52153806A (en) * | 1976-06-17 | 1977-12-21 | Fujitsu Ltd | Production of aluminum-base sintered alloy |
JPS5375107A (en) * | 1976-12-15 | 1978-07-04 | Fujitsu Ltd | Manufacture of sintered aluminum alloy |
JPS53107780U (en) * | 1977-02-07 | 1978-08-29 |
Also Published As
Publication number | Publication date |
---|---|
JPS5835562B2 (en) | 1983-08-03 |
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