Global Patent Index - EP 0433856 B1

EP 0433856 B1 19940302 - Mixed hard metal materials based on borides, nitrides and iron group matrix metals.

Title (en)

Mixed hard metal materials based on borides, nitrides and iron group matrix metals.

Title (de)

Hartmetall-Mischwerkstoffe auf Basis von Boriden, Nitriden und Eisenbindemetallen.

Title (fr)

Matériaux mixtes à base de métaux durs comprenant des borures, nitrures et une matrice en métal ferreux.

Publication

EP 0433856 B1 19940302 (DE)

Application

EP 90123854 A 19901211

Priority

DE 3941536 A 19891215

Abstract (en)

[origin: CA2031640A1] MIXED SINTERED METAL MATERIALS BASED ON BORIDES, NITRIDES AND IRON BINDER METALS The invention relates to mixed sintered metal materials based on high-melting borides and nitrides and low-melting iron binder metals having the composition: (1) 40 - 97% by volume of borides, such as titanium diboride and zirconium diboride; (2) 1 - 48% by volume of nitrides, such as titanium nitride and zirconium nitride; (3) 0 - 10% by volume of oxides, such as titanium oxide and zirconium oxide, with the proviso that components (2) and (3) may also be present as oxynitrides such as titanium and zirconium oxynitride; and (4) 2 - 59% by volume of low-carbon binder metals, such as iron and iron alloys and to processes for preparing the same.

IPC 1-7

C22C 29/14; C22C 33/02

IPC 8 full level

C22C 1/05 (2006.01); C22C 29/14 (2006.01); C22C 29/16 (2006.01); C22C 33/02 (2006.01)

CPC (source: EP US)

C22C 29/14 (2013.01 - EP US); C22C 33/0292 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0433856 A1 19910626; EP 0433856 B1 19940302; AT E102263 T1 19940315; AU 633665 B2 19930204; AU 6802690 A 19910620; CA 2031640 A1 19910616; DE 3941536 A1 19910620; DE 59004781 D1 19940407; ES 2050923 T3 19940601; JP H06128680 A 19940510; JP H08944 B2 19960110; US 5045512 A 19910903

DOCDB simple family (application)

EP 90123854 A 19901211; AT 90123854 T 19901211; AU 6802690 A 19901214; CA 2031640 A 19901206; DE 3941536 A 19891215; DE 59004781 T 19901211; ES 90123854 T 19901211; JP 41910590 A 19901214; US 60823190 A 19901102