Highly durable spring and method of coating the same
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United States of America
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Dec 24, 2024
Grant Date -
Apr 11, 2019
app pub date -
Mar 8, 2017
filing date -
Mar 8, 2017
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Abstract
A highly durable spring of the present invention includes a single-layer coating film with a thickness of 450 μm or less, in which the coating film contains an epoxy resin, a phenolic resin, and zinc. The coating film has high corrosion resistance and chipping resistance even if it is a one thin layer with a thickness of 450 μm or less. A method of coating a highly durable spring of the present invention includes an application process in which an epoxy resin-based powder coating material which contains an epoxy resin, a phenolic resin, and zinc and is produced by a melt kneading method is applied to a surface of a spring on which a coating-film is formed and a baking process in which the applied epoxy resin-based powder coating material is baked.
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