Wear resistant, high impact, iron alloy member and method of mak

Details Wear resistant, high impact, iron alloy member and method of mak Wear resistant, high impact, iron alloy member and method of mak

1997-04-04

2000-03-07

Thibodeau, Paul

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428681, 428685, 164 47, 164 91, 164 97, 164112, 148543, B32B 1504, B22D 2300, B22D 1900

Patent

active

060337915

ABSTRACT:
A wear resistant, high-impact iron alloy member (20,22) suitable for use in an impact rock crusher and a method of making the same. The invention provides a white iron alloy member (20,22) having at least one wear surface (24) with carbide granules encapsulated in a matrix (28) of white iron and contained in a selected region adjacent the wear surface (24) of the member (20,22). The iron alloy member is made by a method of casting comprising the steps of: placing a molding insert (35,40) in a mold (60) at a selected location adjacent the wear surface (24); positioning a quantity of carbide granules (29), most preferably tungsten carbide granules 29, in the molding insert (35,40) before pouring; and pouring molten white iron alloy into the mold (60) to form the casting. The tungsten carbide granules (29) are substantially contained at a selected location by the molding insert (35,40), and the resulting casting (20,22) can be heat treated and cooled to provide a component for a rock crusher or the like which exhibits improved resistance to wear.

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