C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
241/135, 6/195
C09C 1/62 (2006.01) B02C 23/06 (2006.01) B02C 23/18 (2006.01) B22F 9/04 (2006.01)
Patent
CA 1144709
Abstract of the Disclosure The disclosure describes a method of making flaked metal powders having a narrow particle size distribution, a whiter color and a very high sparkle effect. A heterogeneous liquid system comprising an inert liquid and a lubricant and including a finely divided metal is subjected to attrition in an enclosure in which there are a plurality of attritive elements. An agitator is moved through the elements to dis- place those in its path. In this method, the weight ratio of attritive elements to finely divided metal is between 70:1 and 90:1, the weight ratio of finely divided metal to lubricant is between 100:1 to 20:1 and the weight ratio of inert liquid to finely divided metal is between 0.5:1 to 2.5:1. Flaked Al, Cu, brass, stainless steel, nickel, cupro nickel powders and the like are obtained by this method.
331297
Megelas Michael
Swabey Ogilvy Renault
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