EP 0593878 B1 19960605 - Rotationally symmetrical semi - product with varying properties through the cross-section
Title (en)
Rotationally symmetrical semi - product with varying properties through the cross-section
Title (de)
Rotationssymmetrisches Halbzeug mit über den Querschnitt variierenden Eigenschaften
Title (fr)
Demi-produit à symétrie de révolution dont la section possède des propriétés variables
Publication
Application
Priority
DE 4235303 A 19921020
Abstract (en)
[origin: EP0593878A1] The invention relates to a semi-finished product, in particular of copper or copper alloys, which is produced from a rotationally symmetrical preform (1) by hot and cold forming steps. The preform (1) itself is produced by spray compacting and consists of a core (9) and at least one outer layer (10) which is disposed around said core, which, as a result of modifying additives, with the formation of a flowing boundary, have variable properties. Suitable modifying additives are particles which are insoluble in the metal matrix and are introduced either into the core (9) or into the outer layer (10), or they are heterogeneous insoluble particles which are introduced both into the core (9) and into the outer layer (10). <IMAGE>
IPC 1-7
IPC 8 full level
C23C 4/123 (2016.01)
CPC (source: EP US)
C23C 4/123 (2016.01 - EP US); Y10T 428/12021 (2015.01 - EP US); Y10T 428/12049 (2015.01 - EP US); Y10T 428/12056 (2015.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0593878 A1 19940427; EP 0593878 B1 19960605; DE 4235303 A1 19940421; DE 59302814 D1 19960711; FI 100703 B 19980213; FI 934602 A0 19931019; FI 934602 A 19940421; US 5613187 A 19970318
DOCDB simple family (application)
EP 93113617 A 19930826; DE 4235303 A 19921020; DE 59302814 T 19930826; FI 934602 A 19931019; US 51001095 A 19950801