| Patent Number |
Title Of Patent |
Date Issued |
| RE29646 |
Method or restoring ingot mold stools and closed-bottom ingot mold |
May 30, 1978 |
| 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 |
| 4536237 |
Aluminothermic reduction reaction mixture |
August 20, 1985 |
| An aluminothermic reduction reaction mixture consisting essentially of an admixture of manganese dioxide (MnO.sub.2) and metallic aluminum (Al) with alumina (Al.sub.2 O.sub.3) added thereto. The reaction does not yield a metallic phase, but produces a single phase comprising a galaxite |
| 4398588 |
Method of making a rim-stabilized steel ingot |
August 16, 1983 |
| A simple method of producing a rim-stabilized steel ingot without requiring the use of special equipment wherein a rimming-type steel is teemed into an ingot mold and thereafter allowed to rim for a suitable period of time, and then adding a particulate mixture of aluminum and an exother |
| 4150182 |
Method of producing a refractory lining in a cylinder or tube and resultant article |
April 17, 1979 |
| 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 |
| 4142556 |
Refractory lining tuyere for metallurgical furnace |
March 6, 1979 |
| 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 |
| 4131473 |
Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate, an |
December 26, 1978 |
| 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 t |
| 4117868 |
Refractory lined cylindrical article |
October 3, 1978 |
| 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 abrasi |
| 4110887 |
Method of repairing slag and cinder pots and other heavy steel articles |
September 5, 1978 |
| A method of repairing erosion cavities in large steel articles, such as slag and cinder pots by employing a plurality of successive aluminothermic reduction reaction charges without using containment perimeters and without preheating the article. The resultant repaired article has a |
| 4048352 |
Method of producing a refractory lining in a cylinder or tube |
September 13, 1977 |
| 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 |
| 4033399 |
Method for cladding copper and copper alloys to steel substrates |
July 5, 1977 |
| 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. |
| 4005742 |
Method of restoring ingot mold stools and closed-bottom ingot mold |
February 1, 1977 |
| 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 |
| 3956010 |
Dry pickling method |
May 11, 1976 |
| Hot rolled steel is pickled with chlorine gas at temperatures between about 1250.degree.to 2500.degree.F. |
| 3947254 |
High-temperature abrasion-resistant coating on a ferrous metal substrate |
March 30, 1976 |
| 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 t |
| 3946793 |
Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate |
March 30, 1976 |
| 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 t |
| 3942578 |
Method of repairing large castings |
March 9, 1976 |
| 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 mo |
| 3933191 |
Method for containing the molten reaction products of a reactive cladding process |
January 20, 1976 |
| 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 |
