A casing coating processing method
A processing method and coating technology, which is applied to coatings, devices for coating liquid on surfaces, and surface pretreatment, etc., can solve problems such as large economic losses, shedding, and decline in casing quality, so as to improve productivity and improve product quality. The effect of improving the quality and spraying quality
Active Publication Date: 2021-09-17
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology
[0002] A casing part has the characteristics of thin wall, ring shape, complexity and high design precision. The material of this part is a new type of material titanium alloy TC25, and the inner cavity should be sprayed with GH3030 coating by flame melting method. The GH3030 coating fell off as a whole, and the large-area or local block-off rate reached more than 80%, and the qualified rate of one spraying was only 15.65%, which led to a sharp decline in the quality of the casing, seriously affecting product quality and production progress, and economic losses. great
Since there are no references for GH3030 coating parameters for titanium alloy (TC25) casings in the prior art, it is necessary to develop new processing methods whether it is coating spraying or coating lathe processing
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[0013] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings, but the required protection scope is not limited to the description;
[0014] Such as figure 1 As shown, in order to solve the problem of overall peeling, large area or local block falling of the coating, methods such as controlling the coating thickness\turning route are adopted respectively.
[0015] Coating processing method of the present invention is as follows:
[0016] 1) Case cleaning:
[0017] After washing the casing, dry it to keep the surface of the casing dry, clean and free of sundries and contamination. Specifically, use a brush dipped in acetone or other solvents to carefully scrub the casing to completely remove oil and other dirt on the surface of the parts.
[0018] 2) Case spray coating
[0019] The flame melting method is used to spray the GH3030 coating on the spraying part of the casing, and the coating thickness is cont...
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Abstract
The invention discloses a casing coating processing method, which includes spray coating and lathing coating. The spray coating adopts the flame melting method to spray the GH3030 coating to the part of the casing to be sprayed, and the thickness of the sprayed coating is Less than 0.7mm; the method of lathing coating is to divide the lathing from the axial bisector of the casing coating into two lathes, and process 1 / 2 of the circumferential surface each time. The invention can realize high-precision machining of the casing, and prevent problems such as overall shedding of the coating, large-area or partial loss of blocks, and the like.
Description
technical field [0001] The invention belongs to the technical field of surface treatment, in particular to a processing method for spraying a GH3030 coating on a casing inner cavity made of titanium alloy (TC25) using a flame melting method. Background technique [0002] A casing part has the characteristics of thin wall, ring shape, complexity and high design precision. The material of this part is a new type of material titanium alloy TC25, and the inner cavity should be sprayed with GH3030 coating by flame melting method. The GH3030 coating fell off as a whole, and the large-area or partial block-off rate reached more than 80%, and the qualified rate of one spraying was only 15.65%, which led to a sharp decline in the quality of the casing, seriously affecting product quality and production progress, and economic losses. great. Since there are no references for GH3030 coating parameters for titanium alloy (TC25) casings in the prior art, new processing methods need to be...
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IPC IPC(8): B05D7/14B05D7/22B05D3/12B05D3/10B05D3/02
CPCB05D3/0254B05D3/102B05D3/107B05D3/12B05D7/14B05D7/22B05D2202/35
Inventor 胡鹏文湘红张洪张元伟陈建敏
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD