JPH039178B2 - - Google Patents

Info

Publication number
JPH039178B2
JPH039178B2 JP19100787A JP19100787A JPH039178B2 JP H039178 B2 JPH039178 B2 JP H039178B2 JP 19100787 A JP19100787 A JP 19100787A JP 19100787 A JP19100787 A JP 19100787A JP H039178 B2 JPH039178 B2 JP H039178B2
Authority
JP
Japan
Prior art keywords
tool
heat
rolling
carbide particles
piercing
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
Application number
JP19100787A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6345347A (ja
Inventor
Hisashi Hiraishi
Saburo Hayamizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 by Kubota Corp filed Critical Kubota Corp
Priority to JP19100787A priority Critical patent/JPS6345347A/ja
Publication of JPS6345347A publication Critical patent/JPS6345347A/ja
Publication of JPH039178B2 publication Critical patent/JPH039178B2/ja
Granted legal-status Critical Current

Links

JP19100787A 1987-07-30 1987-07-30 シ−ムレス鋼管穿孔圧延用工具 Granted JPS6345347A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19100787A JPS6345347A (ja) 1987-07-30 1987-07-30 シ−ムレス鋼管穿孔圧延用工具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19100787A JPS6345347A (ja) 1987-07-30 1987-07-30 シ−ムレス鋼管穿孔圧延用工具

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP58138761A Division JPS6029442A (ja) 1983-07-28 1983-07-28 シームレス鋼管穿孔圧延用工具

Publications (2)

Publication Number Publication Date
JPS6345347A JPS6345347A (ja) 1988-02-26
JPH039178B2 true JPH039178B2 (enExample) 1991-02-07

Family

ID=16267321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19100787A Granted JPS6345347A (ja) 1987-07-30 1987-07-30 シ−ムレス鋼管穿孔圧延用工具

Country Status (1)

Country Link
JP (1) JPS6345347A (enExample)

Also Published As

Publication number Publication date
JPS6345347A (ja) 1988-02-26

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