Product Details

Specifications

1. Competitive prices

2. High temperature resistant

3. Various sizes available

4. Good quality

5. Small tolorence: +-0.001

silicon nitride sheet/si3n4 disc/silicon carbide bonded nitride plate

Parameter of SI3N4 plate

Apparent porosity		≤16%
Bulk density		≥2.65g/cm3
Cold compression strength		≥100Mpa
Modulus rapture at room temperature		≥25Mpa
Coefficient of thermal liner expansion		4.5×10-6 /℃
Thermal conductivity		≥12w/mk
Refractoriness		1600℃
0.2Mpa (Loading softening point)		1500℃
Max working temperature		1400℃
Composition	SiC	≥85%
	Al2O3+SiO2	≤12%
	Fe2O3	≤1.0%

Producing Craft of SI3N4 plate

1)Reaction bonded silicon carbide plate, minimum thickness:8-10mm

2)Oxide bonded silicon carbide plate, minimum thickness:15-20mm

Application of SI3N4 plate

Shed board, flame clapboard and push board in the field of pottery porcelain and abrasive tool,etc.

SIC is widely used in all kinds of heat treatment furnace, annealing furnace glass, enamel and ceramic sintering furnace, diffusion furnace industry shed board, the prop, the chemical industry's all sorts of sagger, kiln lining, incinerator lining in the environmental protection industry, etc

Si3N4 bonded SiC ceramic refractory material, is mixed with high pure SIC fine powder and Silicon powder, after slip casting course, reaction sintered under 1400~1500°C. During the sintering course, filling the high pure Nitrogen into the furnace, then the silicon will react with Nitrogen and generate Si3N4,So Si3N4 bonded SiC material is composed of silicon nitride (23%) and silicon carbide(75%) as main raw material,mixed with organic material,and shaped by mixture, extrusion or pouring,then made after drying and nitrogenization.

Si3N4 bonded SiC as a new type refractory material,is used widely.The applying temperature is 1400 C.It has better thermal stability,thermal shock,which is better than plain refractory material and recrystallized SiC.It also has antioxidation,high corrosion resistant,wear-resistance,high bending strength.It can resist corrosion and scouring,be no polluted and fast heat conduction in molten metal such as AL,Pb,Zn,Cu ect.

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STA company information

Our factory have more than 20 years production experience, specialized in manufacturing high-temperature heating elements with strict quality control system, advanced equipment, strong technique power and complete test facilities. At present, our various products have passed ISO9001:2008 quality system authentication and have been exported to more than 40 countries and regions.

If you need the SI3N4 plate,please send inquiry to us.