Active filler for grinding wheels

Details Active filler for grinding wheels Active filler for grinding wheels

1983-09-02

1984-10-09

Derrington, James

Abrasive tool making process, material, or composition

With synthetic resin

51299, 51300, C09K 314

Patent

active

044759266

ABSTRACT:
A resinoid bonded abrasive article in which the resinoid bond includes 5-80% by volume of an improved active filler or grinding aid. The active filler is a mixture of iron pyrites, potassium sulfate and an alkali haloferrate; the alkali haloferrate having the formula A.sub.x Fe.sub.y ++ Fe.sub.z +++ H.sub.x+2y+3z where A is an alkali metal, H is a halogen, x is a number from 1 to 10, y is a number from 0 to 1, z is a number from 0 to 1, and y and z are not zero at the same time. The fillers are present in the bond in a ratio of alkali-haloferrate-to-pyrites-to-potassium sulfate of 0.5:1:0.5.

REFERENCES:
patent: 2216135 (1940-10-01), Rainer
patent: 2308981 (1943-01-01), Kistler
patent: 2860960 (1958-11-01), Gregor
patent: 3246970 (1966-04-01), Zimmerman
patent: 3524286 (1970-08-01), Wohrer
patent: 4263016 (1981-04-01), Hirschberg et al.
patent: 4370148 (1983-01-01), Hirschberg et al.

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