Special material for stainless steel-based composite coating for thin valve plate and preparation method thereof
A composite coating, stainless steel technology, applied in heating inorganic powder coating and other directions, can solve the problems of oxidative decomposition of coating materials, poor coating adhesion, thin coating thickness, etc., to increase coating thickness and improve interface bonding The effect of sufficient strength and plastic deformation
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific examples according to the technical solutions of the present invention, but the present invention is not limited to the following examples.
[0025] 316L stainless steel powder is selected as the binder phase of the composite coating and mixed with WC hard phase particles.
[0026] Among them: the content of each element in the composite coating is respectively: the content of each element in the composite coating is respectively: Cr8~9wt%, Ni 5~6wt%, Mo 1~2wt%, W 42~43wt%, C 2~ 3wt%, the balance is Fe.
[0027] 316L stainless steel powder and WC hard phase particle powder are mixed by ball milling at a volume ratio of 7:3. The ball milling method is planetary ball milling, the ball milling speed is 400r / min, the ball milling time is 3h, and the substrate is made of stainless steel with a large area and thin valve. plate, the valve plate area is 297cm 2 , T...
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