论文部分内容阅读
一、技术管理热处理企业需要编制《工艺守则》、《检验规范》、《操作指导书》和《工艺卡》等技术文件,开展工序能力指数测量工作。工序能力指数表示工序能力满足热处理技术标准的程度,是质量标准T与工序能力之比值,记为Cp。Cp值愈大,表明工序对质量的保证能力愈大。在实践中,质量特性值的分布中心μ与标准中心M常发生位置偏移,其偏移量ε=︱M-μ︱。
I. Technical Management Heat treatment enterprises need to prepare technical documents such as “Code of Practice”, “Inspection Specifications”, “Operation Instructions” and “Process Cards” to carry out work capability index measurement. The process capability index indicates the extent to which the process capability meets the heat treatment technology standard and is the ratio of the quality standard T to the process capability, denoted Cp. The larger the Cp value, the greater the assurance of the quality of the process. In practice, the distribution of the center of mass characteristic value μ and the standard center M are often offset by the offset ε = ︱M-μ︱.