Wear resistant parts for hammers and chippers

Details Wear resistant parts for hammers and chippers Wear resistant parts for hammers and chippers

1998-06-15

2000-05-23

Jones, Deborah

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428615, 164 98, 241291, 76103, B32B 1500

Patent

active

06066407&

ABSTRACT:
Long life wear parts are cast with mounting structures at proximal ends and relatively thin carbide layers at distal ends. The distal end carbide layers are filled with cast carbide material and distal faces of the cast steel wear parts are covered with the thin carbide layer. Hardness of the wear parts increases toward the distal end. The proximal end is left unhardened to provide strength and resist breaking, and resist wearing of the base and fasteners which mount the wear parts. In one form portions of distal ends of molds are lined with sintered tungsten-carbide steel wear surfaces before parts are cast.

REFERENCES:
patent: 3404847 (1968-10-01), Smith
patent: 3640324 (1972-02-01), Porter
patent: 3712284 (1973-01-01), Porter
patent: 4770253 (1988-09-01), Hallisay et al.
patent: 4903609 (1990-02-01), Isakov et al.
patent: 5337801 (1994-08-01), Materkowski

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