Powder particles for fine-grained hard material alloys and a...

Details Powder particles for fine-grained hard material alloys and a... Powder particles for fine-grained hard material alloys and a...

B - Operations, Transporting

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75/1.2

B22F 9/04 (2006.01) C22C 1/05 (2006.01) C22C 1/10 (2006.01) C22C 32/00 (2006.01)

Patent

CA 1309882

ABSTRACT OF THE DISCLOSURE The present invention relates to powder particles consist- ing of hard principals and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles. The preparation is performed in an economical way because the procedure starts from conventional melt metallurgical raw materials. A pre-alloy consisting of hard principal forming and binder phase forming elements is subjected to a heat treatment such as nitriding and carburizing after being crushed. The final product is particles composed by hard principal phases and binder metal phases formed "in situ" in an effective binding.

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