Method for processing polyurethane mold surface through Teflon coating
A paint treatment and polyurethane technology, which is applied in the direction of pretreatment surface, special surface, surface coating liquid device, etc., can solve the problems of high cost of release agent, cumbersome process, not environmental protection, etc., and achieve wear resistance and durability Corrosion, reduce production costs, and simplify the production process
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[0021] The specific implementation of the present invention will be further described below in conjunction with the examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0022] Put the iron polyurethane mold into the oven. The temperature in the oven is 400°C. After baking for 4 hours, the grease can be completely removed, and then the emery with a mesh number of 80-120 is used for air pressure sandblasting under a pressure of 80pis. At a room temperature of 15 to 30°C, put the Teflon paint evenly stirred with a high-speed stirrer into the BINKS BULLOWS 630 spray gun, and spray evenly on the surface of the mold. After the first spray, the polyurethane mold is placed in an oven at a temperature of 150°C Heating within 1 hour for heat treatment, take out and cool the polyurethane mold and spray Teflon coating for the second time, spray evenly, af...
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