EP 0085125 A1 19830810 - Cemented carbide compositions and process for making such compositions.
Title (en)
Cemented carbide compositions and process for making such compositions.
Title (de)
Gebundene Carbidmischungen und Verfahren ihrer Herstellung.
Title (fr)
Compositions de carbure cémentée et procédé de fabrication de ces compositions.
Publication
Application
Priority
EP 82100684 A 19820201
Abstract (en)
The compositions comprise about 80 to about 97% by weight of the refractory particles of, for example, tungsten carbide. The particles are bonded within an alloy matrix of between about 5 and about 50% nickel, sufficient carbon to avoid the formation of detrimental carbon deficient or excess carbon phases and a balance of about 95 to about 50% iron by weight. In a preferred embodiment, the alloy matrix additionally contains from about 5 to about 20% by weight of manganese. These compositions are useful for rock drilling.
IPC 1-7
IPC 8 full level
C22C 1/05 (2006.01); C22C 29/06 (2006.01); C22C 29/08 (2006.01); E21B 10/46 (2006.01)
CPC (source: EP)
C22C 29/067 (2013.01); E21B 10/46 (2013.01); B22F 2005/001 (2013.01)
Citation (search report)
- [X] DE 2718594 A1 19771103 - FORD WERKE AG
- [Y] EP 0023095 A1 19810128 - NAT RES DEV [GB]
- [Y] DE 1813533 B1 19701015 - CHROMALLOY AMERICAN CO
- [Y] FR 2215482 A1 19740823 - GEN ELECTRIC [US]
- [Y] US 3698878 A 19721017 - HALE THOMAS E
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0085125 A1 19830810; EP 0085125 B1 19860903; AT E21939 T1 19860915; AU 553700 B2 19860724; AU 7873181 A 19830630; CA 1194893 A 19851008; DE 3272955 D1 19861009; JP S58110655 A 19830701; ZA 818744 B 19821230
DOCDB simple family (application)
EP 82100684 A 19820201; AT 82100684 T 19820201; AU 7873181 A 19811222; CA 397737 A 19820305; DE 3272955 T 19820201; JP 20825681 A 19811224; ZA 818744 A 19811217