United States Steel Corporation

Arthur J Pignocco

Robert H Kachik

Samuel J Manganello

Waldo Rall

Chester E Bieniosek

Richard C Adams

Michael E Waitlevertch

Brass-coated steel cord is provided with improved adhesive characteristics for use in tire making, by coating it with certain combinations of sulfur-containing accelerators and phosphate corrosion inhibitors.

Method for improving the adhesion of brass-coated steel cord to rubber

A method of producing a refractory lining in a cylinder or tube by initiating an exothermic reduction reaction, such as an aluminothermic reduction reaction, within the cylinder and causing the reaction products to coat the interior of the tube substantially uniformly. The product of the method, a ceramic-or refractory-lined cylinder, is also disclosed.

Method of producing a refractory lining in a cylinder or tube and

A refractory lined, abrasion resistant tuyere for a metallurgical furnace is produced by causing an aluminothermic reduction reaction within a cylindrical metal shell, such that the metallic reaction product forms a layer within the cylinder and the slag reaction product forms a second layer overlying the first layer thereby providing an abrasion resistant refractory lining.

Refractory lining tuyere for metallurgical furnace

A method of forming a high-temperature abrasion-resistant hard facing or coating on a ferrous metal substrate by employing an aluminothermic reduction reaction. The resultant article has a hard facing layer containing from 2 to 8 percent boron. Hard faced composite articles made by the invented method, such as sintering machine crash decks, coke pusher ram shoes and grizzly bars are also disclosed.

Method of forming a high-temperature abrasion-resistant coating on a

A refractory lined cylinder or tube is produced by causing an aluminothermic reduction reaction therein, such that the metallic reaction product forms a layer within the cylinder and the slag reaction product forms a second layer overlying the first layer thereby presenting an abrasion-resistant refractory lining.

Refractory lined cylindrical article

Method of producing a refractory lining in a cylinder or tube

A method of cladding copper or copper alloys to a steel substrate by an aluminothermic reduction reaction utilizing an exothermic reaction material which is principally a mixture of calcium-silicon alloy, aluminum, cupric oxide and a metal.

Method for cladding copper and copper alloys to steel substrates

A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction without using containment perimeters and without preheating the casting. The resultant repaired article has a metallurgically bonded plug in the hole or eroded surface with a thick abrasion-resistant slag covering over the deposited metal.

Method of restoring ingot mold stools and closed-bottom ingot mold

Hot rolled steel is pickled with chlorine gas at temperatures between about 1250.degree.to 2500.degree.F.

Dry pickling method

High-temperature abrasion-resistant coating on a ferrous metal substrate

A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction. The resultant repaired article has a metallurgically bonded plug in the crack, hole, break, or eroded surface. An alternative repair method of big-end-up ingot molds is disclosed which comprises forming a ceramic lining on the bottom of the mold.

Method of repairing large castings

Method and apparatus for containing the molten reaction products of a reactive cladding process, such as an aluminothermic reduction cladding process, in which a refractory-lined perimeter rests on either a sand bed or a steel base. A second perimeter surrounding the inner perimeter and forming an annular space therewith is also situated on either the sand bed or the steel base. Sand placed in the annular space between the two perimeters chills any molten reaction products which escape the confines of the inner perimeter, preventing any spread of this material.

Growing community of inventors

Franklin Township, PA, United States of America

Arthur J Pignocco