JPH0351487B2 - - Google Patents

Info

Publication number
JPH0351487B2
JPH0351487B2 JP57158699A JP15869982A JPH0351487B2 JP H0351487 B2 JPH0351487 B2 JP H0351487B2 JP 57158699 A JP57158699 A JP 57158699A JP 15869982 A JP15869982 A JP 15869982A JP H0351487 B2 JPH0351487 B2 JP H0351487B2
Authority
JP
Japan
Prior art keywords
roller die
tube
stepped metal
roll
metal tube
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 - Lifetime
Application number
JP57158699A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5947004A (ja
Inventor
Keiichiro Yoshida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15869982A priority Critical patent/JPS5947004A/ja
Publication of JPS5947004A publication Critical patent/JPS5947004A/ja
Publication of JPH0351487B2 publication Critical patent/JPH0351487B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
JP15869982A 1982-09-10 1982-09-10 段付金属管の製造方法 Granted JPS5947004A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15869982A JPS5947004A (ja) 1982-09-10 1982-09-10 段付金属管の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15869982A JPS5947004A (ja) 1982-09-10 1982-09-10 段付金属管の製造方法

Publications (2)

Publication Number Publication Date
JPS5947004A JPS5947004A (ja) 1984-03-16
JPH0351487B2 true JPH0351487B2 (enrdf_load_html_response) 1991-08-07

Family

ID=15677419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15869982A Granted JPS5947004A (ja) 1982-09-10 1982-09-10 段付金属管の製造方法

Country Status (1)

Country Link
JP (1) JPS5947004A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0659512B2 (ja) * 1987-03-27 1994-08-10 工業技術院長 縮径管の製造方法
JPH0778243B2 (ja) * 1988-07-26 1995-08-23 チッソ株式会社 分散性のすぐれた強磁性金属微粒子の製造法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4884763A (enrdf_load_html_response) * 1972-02-16 1973-11-10

Also Published As

Publication number Publication date
JPS5947004A (ja) 1984-03-16

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