JPH0219728B2 - - Google Patents

Info

Publication number
JPH0219728B2
JPH0219728B2 JP9569784A JP9569784A JPH0219728B2 JP H0219728 B2 JPH0219728 B2 JP H0219728B2 JP 9569784 A JP9569784 A JP 9569784A JP 9569784 A JP9569784 A JP 9569784A JP H0219728 B2 JPH0219728 B2 JP H0219728B2
Authority
JP
Japan
Prior art keywords
steel ingot
mandrel
die
drilling
mandrel bar
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
JP9569784A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60240332A (ja
Inventor
Takeshige Katsumata
Kenichiro Umeda
Takashi Saito
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Priority to JP9569784A priority Critical patent/JPS60240332A/ja
Publication of JPS60240332A publication Critical patent/JPS60240332A/ja
Publication of JPH0219728B2 publication Critical patent/JPH0219728B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)
JP9569784A 1984-05-15 1984-05-15 大径継目無鋼管の製造方法 Granted JPS60240332A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9569784A JPS60240332A (ja) 1984-05-15 1984-05-15 大径継目無鋼管の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9569784A JPS60240332A (ja) 1984-05-15 1984-05-15 大径継目無鋼管の製造方法

Publications (2)

Publication Number Publication Date
JPS60240332A JPS60240332A (ja) 1985-11-29
JPH0219728B2 true JPH0219728B2 (enrdf_load_stackoverflow) 1990-05-02

Family

ID=14144690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9569784A Granted JPS60240332A (ja) 1984-05-15 1984-05-15 大径継目無鋼管の製造方法

Country Status (1)

Country Link
JP (1) JPS60240332A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066229U (ja) * 1992-06-29 1994-01-25 川澄化学工業株式会社 Ａ式ダンボ−ル

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013011595A1 (ja) * 2011-07-15 2013-01-24 株式会社 昭和螺旋管製作所 バルジ加工用の金属ベローズ成形方法、及び、その金属ベローズ成形装置
EP2786814B1 (en) * 2012-05-14 2017-08-02 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing seamless pipe
CN111804747B (zh) * 2020-07-09 2021-12-03 江苏隆达超合金股份有限公司 一种小直径薄壁镍基管精拉拔工艺
CN114632917B (zh) * 2022-03-18 2023-09-08 重庆钢铁股份有限公司 一种连铸机在线处理结晶器内坯壳的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066229U (ja) * 1992-06-29 1994-01-25 川澄化学工業株式会社 Ａ式ダンボ−ル

Also Published As

Publication number Publication date
JPS60240332A (ja) 1985-11-29

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