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Protective tapes General protective tapes; tapes with special properties, industrial tapes, such tapes, various properties, strong technical, high quality requirements, mainly used to make a variety of inflatable tape products and industrial tapes Accessories, in scientific research, production practice, due to various reasons, people often require less trials to establish higher precision regression equations, which requires reasonable scheduling of statistical points, which can not only be used in each The data obtained at the test sites contain the largest information, which reduces the number of trials, and makes the statistical analysis of the data have better properties. Since the regression test design was produced in the early 1950s, the content is continuously rich and there are regression orthogonal Design, regression rotation design, etc., in order to eliminate error interference in the process of performance prediction and finding the optimal formula, it is recommended to use orthogonal design in the equation regression, and the rotation design in the quadratic equation regression of the conveyor belt manufacturers. Rotation, the variance of the predicted value at a point equal to the distance from the center point;
In the experimental design, the variable range of each factor must first be determined according to practical experience and preliminary predictions, then linear transformation, scheduling according to the design table, and some repeated experiments must be done at the center to determine whether the regression equation fits well or not. Test, predict or control the value of a physical performance indicator based on the value of one or several formula factor variables; conversely, predict or measure one or several formula factor variables based on the range of several physical performance indicators of the transport belt Value, analyze the formulation factors by calculating the achievable accuracy, and figure out the relationship between these factors to find out which factors are important, which are secondary, and which are negligible. The equation finds the best combination of formula factors for the required performance; draws contour lines of certain performance; discusses the effect of each formula factor variable on performance to predict the physical properties of the compound; the regression test design method is a treatment formula The mathematical method of the relationship between the variable factor and the factor is established by a certain compound property response equation equation. The link between the amount and the dependent variable, obviously, in this connection expressed by mathematical regression equation, but also shows the importance and practical value of the method.