Three-dimensional reticular texture structure composite coating and preparation method thereof
A three-dimensional, composite coating technology, applied in the coating, metal material coating process, etc., can solve the problems of high cost, single preparation technology, complex process, etc., and achieve the effect of strong bearing capacity
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[0019] The preparation method of a three-dimensional three-dimensional network texture structure composite coating includes the following steps:
[0020] (1) Metal substrate treatment: After removing the oxide layer on the surface of the substrate with a grinding wheel, sand it with sandpaper until it is smooth and bright, then clean and remove the oil stains, and finally dry it for later use;
[0021] (2) Coating powder mixing: weigh the nickel-based alloy powder and tungsten carbide powder or nickel-coated graphite powder separately and place them in a powder mixing bottle and mix them evenly;
[0022] (3) Preparation of the prefabricated layer: The powder is evenly coated on the surface of the substrate after being prepared with an adhesive, with a thickness of 2-3mm, and part of the composite powder with WC added is pre-coated on the surface of the substrate before coating. Nickel-based alloy powder with a layer thickness of 1-2mm is used as a transition layer;
[0023] (4) The si...
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