JPS6049812A - 大径角形鋼管の製造方法 - Google Patents

大径角形鋼管の製造方法

Info

Publication number
JPS6049812A
JPS6049812A JP15710683A JP15710683A JPS6049812A JP S6049812 A JPS6049812 A JP S6049812A JP 15710683 A JP15710683 A JP 15710683A JP 15710683 A JP15710683 A JP 15710683A JP S6049812 A JPS6049812 A JP S6049812A
Authority
JP
Japan
Prior art keywords
steel pipe
welding
semi
longitudinal direction
tack welding
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
JP15710683A
Other languages
English (en)
Japanese (ja)
Other versions
JPH031083B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Nakajima
拓 中島
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.)
Nakajima KK
Original Assignee
Nakajima KK
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 Nakajima KK filed Critical Nakajima KK
Priority to JP15710683A priority Critical patent/JPS6049812A/ja
Publication of JPS6049812A publication Critical patent/JPS6049812A/ja
Publication of JPH031083B2 publication Critical patent/JPH031083B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
JP15710683A 1983-08-30 1983-08-30 大径角形鋼管の製造方法 Granted JPS6049812A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15710683A JPS6049812A (ja) 1983-08-30 1983-08-30 大径角形鋼管の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15710683A JPS6049812A (ja) 1983-08-30 1983-08-30 大径角形鋼管の製造方法

Publications (2)

Publication Number Publication Date
JPS6049812A true JPS6049812A (ja) 1985-03-19
JPH031083B2 JPH031083B2 (enrdf_load_stackoverflow) 1991-01-09

Family

ID=15642358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15710683A Granted JPS6049812A (ja) 1983-08-30 1983-08-30 大径角形鋼管の製造方法

Country Status (1)

Country Link
JP (1) JPS6049812A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH031083B2 (enrdf_load_stackoverflow) 1991-01-09

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