Flame spraying process and apparatus
First Claim
1. Apparatus for forming a coherent refractory mass on a surface, the apparatus comprising:
- a combustion chamber adapted to be disposed on a surface;
a container for holding metallic combustible powder(s) and non-combustible ceramic powder(s);
a first supply line for transporting one or more metallic combustible powders, one or more non-combustible powders and an oxidizer to the combustion chamber;
a second supply line for supplying air to the combustion chamber to supply additional oxygen, to assist in projecting the refractory mass from the combustion chamber and for cooling the inside of the combustion chamber; and
an igniter associated with the combustion chamber and operative to ignite the combustible powder, non-combustible material and oxidizer in the combustion chamber to cause the metallic combustible powder to react in an exothermic manner with the oxygen and release sufficient heat to form a refractory mass which is projected against the surface so that the mass adheres durable to the surface.
1 Assignment
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Accused Products
Abstract
A process, apparatus and material composition for forming a coherent refractory mass on a surface wherein one or more non-combustible materials are mixed with one or more metallic combustible powders and an oxidizer, igniting the mixture in a combustion chamber so that the combustible metallic particles react in an exothermic manner with the oxidizer and release sufficient heat to form a coherent mass of material under the action of the heat of combustion, and projecting this mass against the surface so that the mass adheres durably to the surface. The combustion chamber can be operative with a reverse vortex to cool the walls of the chamber.
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Citations
82 Claims
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1. Apparatus for forming a coherent refractory mass on a surface, the apparatus comprising:
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a combustion chamber adapted to be disposed on a surface;
a container for holding metallic combustible powder(s) and non-combustible ceramic powder(s);
a first supply line for transporting one or more metallic combustible powders, one or more non-combustible powders and an oxidizer to the combustion chamber;
a second supply line for supplying air to the combustion chamber to supply additional oxygen, to assist in projecting the refractory mass from the combustion chamber and for cooling the inside of the combustion chamber; and
an igniter associated with the combustion chamber and operative to ignite the combustible powder, non-combustible material and oxidizer in the combustion chamber to cause the metallic combustible powder to react in an exothermic manner with the oxygen and release sufficient heat to form a refractory mass which is projected against the surface so that the mass adheres durable to the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. Apparatus for forming a coherent refractory mass on a surface, the apparatus comprising:
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a combustion chamber adapted to be disposed on a surface;
a container for holding metallic combustible powder(s) and non-combustible ceramic powder(2);
a single supply line for transporting one or more metallic combustible powders, one or more non-combustible powders and an oxidizer to the combustion chamber; and
an igniter associated with the combustion chamber and operative to ignite the combustible powder, non-combustible powder and oxidizer in the combustion chamber to cause the metallic combustible powder to react in an exothermic manner with the oxidizer and release sufficient heat to form a refractory mass which is projected against the surface so that the mass adheres durable to the surface. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82)
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Specification