Title (en)

METHOD OF CONTINUOUS FINISHING OF PIPE

Publication

EP 0431775 A3 19910710 (EN)

Application

EP 90312467 A 19901115

Priority

• JP 30192289 A 19891122
• JP 30192389 A 19891122

Abstract (en)

[origin: EP0431775A2] The invention provides a method of finishing long pipes composed of straightening rolled pipes after they have been cooled at a cooling bed (10), inspecting the pipes by nondestructive inspection and cutting the pipes to a predetermined length. A high speed straightener having five roll pair stands is utilized in the straightening, wherein the plural pairs of the rolls adjacent to each other co-operate to achieve the maximum offset.

IPC 1-7

B21D 3/04

IPC 8 full level

B21D 3/04 (2006.01)

CPC (source: EP)

B21D 3/04 (2013.01)

Citation (search report)

• [X] DE 3729619 A1 19890316 - REIKA WERK GMBH MASCHF [DE]
• [Y] US 4663955 A 19870512 - REDMAN ROBERT J [US]
• [Y] US 4406141 A 19830927 - NUMANO MASACHIKA [JP], et al
• [A] US 4494394 A 19850122 - NILSSON EINAR W [US]
• [A] EP 0182003 A2 19860528 - KIESERLING & ALBRECHT [DE]
• [A] US 3207289 A 19650921 - SMITH FREDERIC M

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0431775 A2 19910612; EP 0431775 A3 19910710

DOCDB simple family (application)

EP 90312467 A 19901115