Factors affecting the thermal shock resistance of electrode paste
According to the research results of carbon experts at home and abroad, the main factors affecting thermal shock resistance are tensile strength, linear thermal expansion coefficient, Young’s modulus, bulk density, thermal shock parameters, thermal conductivity, etc.
According to the characteristics of the production and use of the electrode paste, under certain production equipment and process conditions, the tensile strength and bulk density of the electrode paste during the sintering process are almost a fixed value. For example, the bulk density of the electrode paste after sintering is per cubic meter. The centimeter is 1.4 grams, and the tensile strength is 6 MPa per square centimeter. Therefore, it can only be investigated from the perspective of production equipment and technology.
The Young’s modulus and thermal shock parameters that affect thermal shock resistance are constants. The discussion of linear thermal expansion coefficient is more complicated, and we will do a special discussion in Chenguang Metallurgy. Here we mainly discuss the influence of thermal conductivity on thermal shock resistance.