EP 0053600 B1 19840919 - METHOD OF PRODUCING A HEAVY PLATE OF STEEL

Title (en)

METHOD OF PRODUCING A HEAVY PLATE OF STEEL

Publication

EP 0053600 B1 19840919 (DE)

Application

EP 81890158 A 19811001

Priority

AT 587980 A 19801202

Abstract (en)

[origin: US4493452A] In a method of producing heavy plate of steel, a prematerial is hot-rolled in several passes. As the prematerial at least two slabs of the same steel quality are superposed so as to form a pack and are welded by roll-bonding and reduced in thickness.

IPC 1-7

B21B 1/26; B21B 1/04; B21B 1/38

IPC 8 full level

B23K 20/04 (2006.01); B21B 1/38 (2006.01)

CPC (source: EP US)

B21B 1/38 (2013.01 - EP US)

Citation (examination)

US 987774 A 19110328 - TORSELL CARL T [US]
DE 2651958 A1 19770602 - VOEST AG
DE 2504866 A1 19751016 - KYOEI STEEL LTD
AT 302223 B 19721010 - VOEST AG

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0053600 A1 19820609; EP 0053600 B1 19840919; AT 374704 B 19840525; AT A587980 A 19831015; DE 3166190 D1 19841025; JP S57118879 A 19820723; US 4493452 A 19850115; US 4684053 A 19870804

DOCDB simple family (application)

EP 81890158 A 19811001; AT 587980 A 19801202; DE 3166190 T 19811001; JP 19432181 A 19811202; US 32483781 A 19811125; US 63887184 A 19841105