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
Application number
JP1987059121U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0238911Y2 (en]
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987059121U priority Critical patent/JPH0238911Y2/ja
Publication of JPS63167157U publication Critical patent/JPS63167157U/ja
Application granted granted Critical
Publication of JPH0238911Y2 publication Critical patent/JPH0238911Y2/ja
Expired legal-status Critical Current

Links

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)
JP1987059121U 1987-04-17 1987-04-17 Expired JPH0238911Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987059121U JPH0238911Y2 (en]) 1987-04-17 1987-04-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987059121U JPH0238911Y2 (en]) 1987-04-17 1987-04-17

Publications (2)

Publication Number Publication Date
JPS63167157U true JPS63167157U (en]) 1988-10-31
JPH0238911Y2 JPH0238911Y2 (en]) 1990-10-19

Family

ID=30890318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987059121U Expired JPH0238911Y2 (en]) 1987-04-17 1987-04-17

Country Status (1)

Country Link
JP (1) JPH0238911Y2 (en])

Also Published As

Publication number Publication date
JPH0238911Y2 (en]) 1990-10-19

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