EP 0348300 B1 19920826 - METHOD AND APPARATUS FOR MANUFACTURING A MULTILAYERED COMPOSITE METALLIC PRODUCT
Title (en)
METHOD AND APPARATUS FOR MANUFACTURING A MULTILAYERED COMPOSITE METALLIC PRODUCT
Publication
Application
Priority
FR 8808311 A 19880621
Abstract (en)
[origin: EP0348300A1] The invention relates to a method for manufacturing a composite metallic product having at least two different metallic layers, characterised in that: - an insert (5) covered with a layer of paraffin is suspended, the insert constituting the base metal in an ingot mould (1) homothetic to the said insert, - and after bottom casting, at a given temperature and rising speed, an added metal covering the entire insert (5) to obtain a metallic ingot, the ingot surrounded by the added metal is subjected to a hot- rolling process, and then, if necessary, a cold-rolling process until the product is obtained, under customary rolling conditions, - then an annealing is carried out, adapted to the two metallic layers, to homogenise the mechanical characteristics of the core and of the surface of the product. The invention also relates to an apparatus for manufacturing a composite metallic product.
IPC 1-7
IPC 8 full level
B22D 7/02 (2006.01)
CPC (source: EP)
B22D 7/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0348300 A1 19891227; EP 0348300 B1 19920826; AT E79792 T1 19920915; DE 68902599 D1 19921001; DE 68902599 T2 19930415; ES 2034690 T3 19930401; FR 2632977 A1 19891222
DOCDB simple family (application)
EP 89401755 A 19890621; AT 89401755 T 19890621; DE 68902599 T 19890621; ES 89401755 T 19890621; FR 8808311 A 19880621