The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 1986
Filed:
Jun. 28, 1985
Earl K Keith, Clute, TX (US);
William E Mercer, II, Brazoria, TX (US);
Clarence R Dick, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
The invention described herein is an apparatus and method for forming a wear-resistant metal composition. As a specific example, aluminum oxide powder is added to a magnesium alloy to provide a wear-resistant magnesium composition. The magnesium alloy, as the base metal, is placed in a crucible and melted with a burner positioned external to the crucible. A pump having a suction side and a discharge side is mounted on the crucible, with the pump head being suspended below the surface of the molten magnesium. The pump includes a feed tube connected to the suction side, and this tube has a suction opening therein which lies partly above and partly below the surface of the molten metal. The aluminum oxide is fed into the feed tube, and the suction action of the pump causes a vortex at the molten metal surface. The vortex pulls the molten magnesium through the suction opening where it mixes with the aluminum oxide powder. The resulting blend of magnesium and aluminum oxide gives a good, wear-resistant magnesium product.