Fire resistance is an important factor symbolizing the performance of refractory materials. The degree of fire resistance determines which position to use in the boiler. There are also many methods for testing fire resistance. What are the methods for testing the fire resistance of refractory materials? The ramming material manufacturer will take you to understand.

What are the fire resistance testing methods for refractory materials from ramming material manufacturers? Fire resistance mainly refers to the temperature at which a material reaches a specific degree of softening under high temperature, which is the performance of refractory materials in resisting high temperature effects. It should be noted that the fire resistance is different from the melting point, which refers to the temperature at which the liquid and solid phases of the crystal are in equilibrium. Fire resistance is the temperature at which a multiphase reaches a specific degree of softening.

The two need to be distinguished. The main methods for measuring the fire resistance of refractory materials are:

1、 The refractory material is made into a truncated triangular cone, the upper part is 2mm long, the lower part is 8mm long and 30mm high, and the cross section is equilateral triangle. When heated at a certain heating rate, it deforms and bends due to its own weight, and the temperature until the vertex contacts the chassis is the fire resistance of the sample.

2、 Professional fire resistance testing machine; A machine specifically designed for testing the fire resistance of materials, and an instrument capable of accurately measuring the fire resistance.

There are many testing methods for fire resistance, and the main testing method is the one mentioned by the manufacturer of ramming materials. The material is directly made into a conical column, and then heated to check the fire resistance of the refractory material.