化工生产Cp值的探讨——无定形产品的质量控制-常州大学学报(自然科学版)

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摘要:: 本文结合化工生产过程及产品的特点,对间歇式生产过程,连续式生产过程中的无定形产品的质量控制进行了探讨。根据Cp值范围的确定是建立在产品之间的质量性质是互相独立的及随机的条件下,以及提高Cp值主要途径是降低σ值。由此,提出了无定形产品在间歇式生产或在连续式生产的过程中可以通过混合的方式改善产品质量;混合后产品的质量分布服役u(X,σ/n~(1/2))的正态分布,得出提高混合数n可以提高Cp值,为化工生产中无定形产品有效的质量控制方法提出理论根据。

Abstract:: The article, based on the process of chemical industry production and product quality, provides a good approach to the quality control of unshaped production intermittent and continuous production. Accordins to the fact that the determination of Cp range is established between product quality under the independent and random condition and the way to raise Cp value is to reduce σ value, The article points but that product quality can be improved by mixed method and quality distuibution, of mixed product obey the normal distribution u Therefore the article comes to the conclution that Cp value can be raised by the increment of the numerical value N and the article advances a new theory for effectcire quality control of shapless products in the chemical industry production.