Global Patent Index - EP 1047800 A1

EP 1047800 A1 2000-11-02 - MOLDED BODIES MADE OF A HARD-METALLIC, WEAR-RESISTANT MATERIAL AND A METHOD FOR THE PRODUCTION THEREOF

Title (en)

MOLDED BODIES MADE OF A HARD-METALLIC, WEAR-RESISTANT MATERIAL AND A METHOD FOR THE PRODUCTION THEREOF

Title (de)

FORMKÖRPER AUS EINEM HARTMETALLISCHEN VERSCHLEISSFESTEM WERKSTOFF UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

CORPS MOULE CONSTITUE D'UNE MATIERE METALLIQUE DURE RESISTANT A L'USURE, ET SON PROCEDE DE PRODUCTION

Publication

EP 1047800 A1 (DE)

Application

EP 99906111 A

Priority

  • DE 19800689 A
  • EP 9900076 W

Abstract (en)

[origin: DE19800689C1] The invention relates to wear-resistant materials and molded bodies which can be utilized in many fields. Molded bodies made of a hard-metallic, wear-resistant material are known (semifinished products such as prefabricated parts) which are made from a sintered body produced using a powder metallurgical process. To this end, a mixture is produced which is comprised of a hard alloy powder and a bonding agent. Using extrusion molding or metal injection molding methods, the mixture is molded into a green compact of the desired molded body which is subsequently sintered. According to the invention, a pulverized hard material, preferably based on carbide, is admixed as an additional starting product to the metal powder of the hard alloy. This metal powder mixture is mixed with the bonding agent into a paste, said bonding agent preferably being a thermoplastic material with common additives.

IPC 1-7 (main, further and additional classification)

C22C 1/05; C22C 29/00

IPC 8 full level (invention and additional information)

C22C 1/05 (2006.01)

CPC (invention and additional information)

C22C 1/051 (2013.01); C22C 1/05 (2013.01)

Citation (search report)

See references of WO 9935295A1

Designated contracting state (EPC)

AT CH DE FI FR GB LI SE

EPO simple patent family

DE 19800689 C1 19990715; EP 1047800 A1 20001102; WO 9935295 A1 19990715

INPADOC legal status


2001-10-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010418

2001-01-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001204

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000707

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT CH DE FI FR GB LI SE