Preparation method for tension-roller thermal-sprayed coating
A technology of tension roller and thermal spraying, which is applied in the direction of coating, metal material coating process, melt spraying, etc., and can solve the problems that the tension roller cannot reach, the surface roughness of the tension roller is reduced, and scratches, etc.
Active Publication Date: 2015-05-06
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses a preparation method for a tension-roller thermal-sprayed coating. The method comprises: firstly pre-treating the surface of a tension roller to reach thermal spraying requirements; employing a WC-Co, WC-CoCr, WC-NiCr or WC-Ni powder material to perform thermal spraying processing under certain parameter conditions, so as to obtain a coating with the thickness of 0.2 mm or more; employing epoxy resin and a curing agent, mixing according to a ratio, then coating the surface of the tension roller coating with the mixture, and placing for 24 h or drying at 100-120 DEG C for 2-3 h; employing a whetstone or diamond abrasive belt to perform polishing processing on the coating surface; and performing texturing processing on the tension-roller surface by employing sand grains with different particle size according to the different roughness finally needed by the tension roller, so as to obtain the tension-roller coating surface with different roughness. The prepared tension-roller thermal-sprayed coating possesses excellent wear resistance, shock resistance and roughness retention capability, is strong in surface foreign-matter adhesion resistance, satisfies practical production usage requirements of a tension roller, and helps to improve the quality of strip steel products.
Molten spray coating
Pre treatmentThermal spraying +8
- Experimental program(2)
Description & Claims & Application Information
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