99% Ultrapure Silicon Nitride Powder Applied For tapping hole

Silicon nitride powder of gray color is widely applied in steel-smelting, refractory , abrasion rubber , plastic, ceramic and high temperature sealing industries

features:

1. Excellent properties of corrosion resistance thermal conductivity , heat

    shock resistance and abrasion resistance

2.Good anti-division property and stable chemical composition

3. Low thermal expansion coefficient high conductivity

4. Good oxidation resistance at high temperature

Application:

Silicon nitride powder as a new material of modern industry , silicon nitride

powder is widely applied as follows:

Non-ferrous metallurgy: Protective coating & film due to its excellent

properties of anti-corrosion and non-infiltration.

Iron & Steel smelting:

1. In steel industry , silicon nitride coating can efficiently solve the oxidation

    loss of billet during heat-treatment process.

2. For furnace body or electric furnace , silicon nitride tapping hole clay can

    seal the hole of blast furnace well and be easily cut.

3. As additive of nitrogen during production of alloy steel , especially for

    producing HRB 400 rebar