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Application of Control Chart in Heat-treatment Process

Wei Li,Huang Li  
The principle of tolerance’s range of quenching process is given,and based on process control principle,a controlling method of “changable center”is put forward,by which the applying problem of control chart in stable heat treatment process will be better solved.The practice shows that it is reliable,convenient and efficient when used in heat treatment process,especially in quenched and tempered process.
【CateGory Index】: TG156,TG156
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