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Direct recycling method for Ni-based single crystal superalloy parts
Direct recycling method for Ni-based single crystal superalloy parts
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机译:镍基单晶高温合金零件的直接回收方法
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摘要
PROBLEM TO BE SOLVED: To provide a direct recycling method of a Ni-based single crystal superalloy component.SOLUTION: There is provided a recycling method of a Ni-based single crystal superalloy component when a coat layer of a heat shield coating is broken, or damage is caused in a Ni-based single crystal superalloy in which the Ni-based single crystal superalloy component is coated with a heat shield coating including ceramic. The recycling method includes: a process in which the Ni-based single crystal superalloy component is melted at a temperature that is at least a melting point of the Ni-based single crystal superalloy and less than a melting point of the ceramic; a process in which a casting mold 30 for the recycle Ni-based single crystal superalloy component is heated to at least the melting temperature of the Ni-based single crystal superalloy; a process in which the melted Ni-based super alloy is poured in the casting mold to produce a melting stock or grow the Ni-based single crystal superalloy; and a process in which the melting stock or the recycle Ni-based single crystal superalloy component is taken out from the casting mold.
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