Method of hardening surface of metallic part, piston, cylinder head, and cylinder block each produced using the surface-hardening method, and process for producing the same
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United States of America Patent
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Apr 10, 2012
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N/A
app pub date -
Mar 12, 2007
filing date -
May 16, 2006
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Abstract
With regard to a surface hardening method wherein a surface of an engine member is coated with an alloy layer having high abrasive resistance so as to improve the life of the member and a production method of a piston or the like wherein abrasive resistance of the member is improved by the hardening method, a surface of a metal base material is coated uniformly with a mixture including metal powder, a binder and a solvent so as to form a coat, and the coat is dried and applied thereon with a laser or electron beam so as to be sintered and dispersed for forming an alloy layer on a surface of the metal base material and for bonding the alloy layer to the metal base material.
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