Powder metallurgy mixed material formula modeling and control method based on multiple regression

The invention discloses a powder metallurgy mixed material formula modeling and control method based on multiple regression, which comprises the following steps of: preparing an iron-based or copper-based sintering material sample by analyzing a powder metallurgy process, carrying out an optimal sel...

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Bibliographic Details
Main Authors ZHENG YIMIN, SHAO HUI, NIE ZHUOYUN, XIANG LEIJUN
Format Patent
LanguageChinese
English
Published 26.10.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a powder metallurgy mixed material formula modeling and control method based on multiple regression, which comprises the following steps of: preparing an iron-based or copper-based sintering material sample by analyzing a powder metallurgy process, carrying out an optimal selection test on a mixed material formula by adopting an orthogonal test method, and analyzing the influence of the element content of the mixed material on a product quality index; establishing a mathematical model related to the density, hardness and other quality indexes of a powder metallurgy mixed material and a product through a multiple regression analysis method, carrying out F inspection, t inspection, heteroscedasticity diagnosis and multi-collinearity diagnosis on the model, establishing an optimal model of a formula and the product quality indexes, and predicting the product quality indexes through the model; and obtaining the optimal formula of the product quality index through the model. Prediction of t
Bibliography:Application Number: CN202110832583