WIRED MATERIAL FOR CANTED COIL SPRING, CANTED COIL SPRING, AND MANUFACTURING METHODS THEREFOR
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United States of America Patent
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May 23, 2019
app pub date -
Apr 10, 2017
filing date -
Apr 10, 2017
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Abstract
A wire material for a canted coil spring 1 includes a core wire 10 made of steel with a pearlite structure and a plating layer 20 covering a surface 11 of the core wire 10 and made of copper or a copper alloy. The steel constituting the core wire 10 contains 0.5% to 1.0% by mass of carbon, 0.1% to 2.5% by mass of silicon, and 0.3% to 0.9% by mass of manganese, with the balance being iron and unavoidable impurities.
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