What are the functions of corrosion-resistant gas coatings? The corrosion-resistant gas coating must protect the base material exposed to high-temperature corrosive gas. Due to the simultaneous existence of oxidation and chemical reaction, it is necessary to prevent the products of the reaction between the coating and gas from damaging the base material.
What are the requirements for corrosion resistant gas coatings? Corrosion resistant gas can withstand high temperature corrosive gas; It can withstand periodic heat shock and overheating; Match with the thermal expansion coefficient of the matrix. The recommended spraying materials are nickel chromium alloy (except sulfur-containing medium), aluminum spraying, sealing and hot infiltration. The recommended spraying methods are plasma spraying and combustion flame spraying.
Application examples include the inner surface of rotary kiln, brazing fixture, carbonization box, exhaust fan blade, cyanidation crucible, gas flue system, boiler return pipe of power plant, coke oven pipe, converter boiler, etc.
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