In order to achieve good application, the intermediate coating material must have the following characteristics
1. The volume density is controlled between 1.7-1.8g/cm3, which has good construction performance and fast baking performance
2. Good adhesion and moderate hardening time
3. Introduce micro pores to achieve a good balance between the sintering and thermal insulation properties of the material, forming a good sintering layer at the contact surface between the material and the molten steel and slag, enhancing the resistance to erosion and erosion by the molten steel and slag
4. Effectively reduce material density to achieve lower temperature of the intermediate ladle shell and energy-saving effect
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