JPS63167157U - - Google Patents
Info
- Publication number
- JPS63167157U JPS63167157U JP1987059121U JP5912187U JPS63167157U JP S63167157 U JPS63167157 U JP S63167157U JP 1987059121 U JP1987059121 U JP 1987059121U JP 5912187 U JP5912187 U JP 5912187U JP S63167157 U JPS63167157 U JP S63167157U
- Authority
- JP
- Japan
- Prior art keywords
- center
- center hole
- workpiece
- hardening
- tip portion
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Heat Treatment Of Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987059121U JPH0238911Y2 (un) | 1987-04-17 | 1987-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987059121U JPH0238911Y2 (un) | 1987-04-17 | 1987-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63167157U true JPS63167157U (un) | 1988-10-31 |
| JPH0238911Y2 JPH0238911Y2 (un) | 1990-10-19 |
Family
ID=30890318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987059121U Expired JPH0238911Y2 (un) | 1987-04-17 | 1987-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238911Y2 (un) |
-
1987
- 1987-04-17 JP JP1987059121U patent/JPH0238911Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0238911Y2 (un) | 1990-10-19 |