Method for using recycled aluminum oxide ceramics in industrial applications

Abstract

A method of sandblasting an article, such as in industrial cleaning and polishing, using recycled waste aluminum oxide ceramic particles is disclosed. In the method, a quantity of recycled ceramic aluminum oxide particles having a size ranging from about ¼ inch to about 400 mesh, depending upon the target and application, is obtained. For abrasive applications, the particle size is preferably from ¼ inch to 60 mesh. For polishing applications, the particle size is preferably from 80 to 400 mesh. The recycled ceramic particles are propelled at an article in a carrier stream, such as compressed gas. Known and novel sandblasting equipment can be used according to the present invention. The ceramic particles are preferably obtained by grinding waste aluminum oxide ceramic material, such as waste spark plugs, ceramic switches, liners, and fire bricks.

Dependencies are inferred from the claim text.