The conditions required for the selection of intermediate frequency furnace charge

The intermediate frequency furnace lining materials are divided into three types: acid lining materials, basic lining materials, and neutral lining materials.

The acid furnace lining material is made of high-purity microcrystalline quartz sand and powder, added with composite high-temperature sintering agent and proprietary mineralizer, and mixed with a common particle size ratio to synthesize the basic furnace lining material. , Magnesium intermediate frequency electric furnace refractory with pre-mixed binder. This product adopts a proprietary particle size design, and users can directly put it into use. The intermediate frequency furnace charge is a low-electric fused corundum-based aluminum-magnesium spinel dry vibration refractory material, which is a high-purity refractory. The raw material and the proprietary particle size distribution design enable it to obtain a dense and uniform unshaped furnace lining. The material has excellent thermal shock stability and high temperature strength, and has a loose layer during normal use.

Intermediate frequency furnace charge acid, neutral and basic refractory materials are widely used in coreless intermediate frequency electric furnaces. , in high manganese steel.

Therefore, the selection of intermediate frequency furnace charge should have the following characteristics:

1. The function of no deformation and no melting under sufficient temperature;

2. It can have good structural strength at high temperature without softening and deformation;

3. The volume is stable at high temperature, and will not cause cracks due to expansion and contraction;

4. When the temperature changes sharply or the heating is uneven, it will not break and fall off;

5. It can resist the chemical erosion of metal solution, slag and furnace gas.