Abrasion resistant composite casting and production method...

Details Abrasion resistant composite casting and production method... Abrasion resistant composite casting and production method...

B - Operations, Transporting

24

D

57/17

B24D 3/06 (2006.01) B22D 19/14 (2006.01) C22C 1/10 (2006.01) C22C 33/02 (2006.01)

Patent

CA 1339715

An abrasion resistant composite casting to be incorporated in an apparatus used under severe abrasion conditions. The composite casting is most suitable for such abrasion condition brought about by high hard particles. The composite casting includes fine pieces of cemented carbide and a cast iron of white pig iron structure which combines the fine pieces to give a required form. The fine pieces of cemented carbide are in the form of crushed pieces, granular pieces or compressively molded compacts or a combination of the above. At least 70% of the fine pieces have a grain size in the range 2 to 15 mm. The fine pieces form an abrasive resistant surface with a white cast iron filing any gaps between the fine pieces.

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