Ceramic slurry for aluminizing protection and preparation method and application of ceramic slurry

A ceramic slurry and aluminizing technology, which is applied in transportation and packaging, metal processing equipment, metal material coating technology, etc., can solve the problems of high toxicity, cumbersome operation, and increased cost
CN112853350APending Publication Date: 2021-05-28成都航宇超合金技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
成都航宇超合金技术有限公司
Publication Date
2021-05-28

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Abstract

The invention belongs to the field of chemical heat treatment, and particularly relates to ceramic slurry for aluminizing protection and a preparation method and application of the ceramic slurry. According to the ceramic slurry for aluminizing protection and the preparation method and application of the ceramic slurry, the ceramic slurry for aluminizing protection forms a stable and non-falling aluminizing protective layer after being sintered, has a good shielding effect, and does not react with a matrix. The ceramic slurry for aluminizing protection comprises the following components of zirconium oxide, a binder and metal, wherein the mass ratio of the zirconium oxide to the binder to the metal is (0.8-3): (0.5-1.5): (0.8-1.5). According to the ceramic slurry for aluminizing protection, zirconium oxide powder, the binder and metal powder are mixed and then coat a tenon of a turbine blade, and the ceramic slurry is used for protection during aluminizing of solid powder at the aluminizing temperature of 600-1,100 DEG C.
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Description

technical field

[0001] The invention belongs to the field of chemical heat treatment, and in particular relates to a ceramic slurry for aluminizing protection and a preparation method and application thereof. Background technique

[0002] With the development of the modern aviation industry, the temperature requirements for the turbine blades of aeroengines are also getting higher and higher. In order to meet the requirements of high temperature, high speed, high pressure, long life and high stability, aero-engine turbine blades are widely treated with aluminizing. After the surface of the aluminized part is oxidized by high-temperature air circulation, a uniform and dense Al is formed. 2 o 3 The oxide film can effectively prevent oxygen from diffusing to the blade substrate and prevent further oxidation failure of the blade.

[0003] Solid powder aluminizing is a method of covering parts in powdered aluminizing agent and heating and diffusing to form an aluminized layer ...

Claims

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