Method for simulating and calculating Brinell hardness of titanium sponge

Abstract

The invention provides a method for simulating calculation of Brinell hardness of sponge titanium, and belongs to the field of sponge titanium preparation. According to the technical scheme, the method is characterized by comprising the steps of measuring the cloth hardness of sponge titanium with the known impurity content; calculating the correlation coefficient of the Brinell hardness and the impurity content according to the measured Brinell hardness of the sponge titanium with the known impurity content; and determining dependent variable factors of the multivariate linear model accordingto the correlation coefficient values of the Brinell hardness and the impurities, establishing a multivariate linear regression model of the Brinell hardness, and calculating to obtain a simulation calculation formula of the Brinell hardness. The method can realize rapid and accurate pre-judgment of the Brinell hardness of the sponge titanium, can be used for calibrating the actual measurement value of the Brinell hardness of the sponge titanium, can also be used for calculating the influence degree of each impurity on the Brinell hardness of the sponge titanium and guiding the improvement ofthe production process of the sponge titanium with low Brinell hardness, and is suitable for simulation calculation of the Brinell hardness of the sponge titanium.

Description

technical field [0001] The invention relates to the preparation technology of sponge titanium, in particular to the technology of the method for simulating and calculating the Brinell hardness of sponge titanium. Background technique [0002] Sponge titanium is an important raw material for the preparation of titanium and titanium alloys, and it is only produced by magnesia thermal method in industry. The impurity content and Brinell hardness of sponge titanium are important indicators to measure the quality of sponge titanium. The national standard GB / T 2524-2010 has made clear requirements for sponge titanium. Brinell hardness is a comprehensive reflection of the impurity content of sponge titanium. Generally speaking, sponge titanium with higher impurity content has relatively higher Brinell hardness. [0003] In order to accurately judge the grade of sponge titanium, the impurity content and Brinell hardness of each batch of products need to be measured separately, refe...

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Problems solved by technology

The paper "The Application of Minitab Software in the Analysis of the Effect of Impurity Elements on the Hardness of Sponge Titanium" used Minitab software to simulate and calculate the Brinell hardness of sponge titanium using a multiple linear regression model, but did not analyze the relationship between impurities and The correlation of Brinell hardness, so the model established in this paper still has problems such as poor simulation accuracy and serious deviation from the actual hardness value

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