DE3484775D1 - METHOD AND DEVICE FOR COLD DRAWING SEAMLESS METAL TUBES WITH UPSTRESSED AREAS ON BOTH ENDS. - Google Patents

METHOD AND DEVICE FOR COLD DRAWING SEAMLESS METAL TUBES WITH UPSTRESSED AREAS ON BOTH ENDS.

Info

Publication number
DE3484775D1
DE3484775D1 DE8484302623T DE3484775T DE3484775D1 DE 3484775 D1 DE3484775 D1 DE 3484775D1 DE 8484302623 T DE8484302623 T DE 8484302623T DE 3484775 T DE3484775 T DE 3484775T DE 3484775 D1 DE3484775 D1 DE 3484775D1
Authority
DE
Germany
Prior art keywords
upstressed
areas
cold drawing
metal tubes
seamless metal
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
DE8484302623T
Other languages
German (de)
Inventor
Yutaka Sunaga
Toshio Sakurai
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.)
Sanwa Kokan Co Ltd
Original Assignee
Sanwa Kokan Co 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 Sanwa Kokan Co Ltd filed Critical Sanwa Kokan Co Ltd
Priority claimed from EP84302623A external-priority patent/EP0159426B1/en
Application granted granted Critical
Publication of DE3484775D1 publication Critical patent/DE3484775D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

DE8484302623T 1984-04-17 1984-04-17 METHOD AND DEVICE FOR COLD DRAWING SEAMLESS METAL TUBES WITH UPSTRESSED AREAS ON BOTH ENDS. Expired - Lifetime DE3484775D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84302623A EP0159426B1 (en) 1984-04-16 1984-04-17 Method and apparatus for cold drawing seamless metal tubes having upset portions at both ends

Publications (1)

Publication Number Publication Date
DE3484775D1 true DE3484775D1 (en) 1991-08-08

Family

ID=8192620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484302623T Expired - Lifetime DE3484775D1 (en) 1984-04-17 1984-04-17 METHOD AND DEVICE FOR COLD DRAWING SEAMLESS METAL TUBES WITH UPSTRESSED AREAS ON BOTH ENDS.

Country Status (1)

Country Link
DE (1) DE3484775D1 (en)

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition