Roller Kiln Refractory Mullite Ceramic Plate

• Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate
• Type: Insulation Sheet
• Chemistry: Alumina Ceramic
• Material: Ceramic
• Thermal Rating: H 180
• Maximum Voltage: 20KV~100KV
• Classification: Ceramic
• Certification: ISO9001
• Color: White
• Brand: Ry
• Product Name: Roller Kiln Refractory Mullite Ceramic Plate
• Max Working Temperature: 1350 Degree
• Thermal Shock Resistance: 180-220
• Alumina Contant: 60%-740%
• Character: Remarkable Energy Saving Effect
• Usage: Water Heater, Hair Dryer
• Feature: Cold and Heat Shock Resistance
• Advantage: Low Expansion, Acid-Proof Ceramic
• Prupose: Electrical Insulating Material
• Apply: Roller Kiln, Tunnel Kiln, Difference Furnace
• Forming Method: Dry-Press
• Transport Package: Wooden Case or Wooden Pallet
• Specification: According to customer request
• Trademark: RY
• Origin: China
• HS Code: 6909190000
• Production Capacity: 10000PCS Per Month

Product Description

Roller Kiln Refractory Mullite Ceramic Plate

 

Performance for Mullite Ceramic :

Item		Alumina	Dense Cordierite	Porous Cordierite	Cordierite-Mullite	Mullite	Corundum Mullite
Density (g/cm^3)		2.0-2.3	2.1-2.5	1.5-1.9	1.8-2.3	2.0-2.5	2.3-2.7
Coefficient of Heat Expansion (20-800°C) (10^-6 K^-1)		≤5	≤3.5	≤3.0	≤3.5	≤5	≤6
Thermal Conductivity (W/MK)		1.5-2.0	1.5-2.5	1.2-1.8	1.5-2.0	1.5-2.0	1.5-2.5
Specific Heat (20-1000°C) (J/Kg.K)		900-1150	900-1100	900-1100	900-1150	1000-1150	1100-1300
Max. Work Temperature (°C)		1350	1300	1300	1320	1450	1550
Impact Thermal Resistance (°C/min)		≥300	≥300	≥350	≥350	≥350	≥300
Water absorption(%)		15-25	≤2	15-25	15-25	15-25	15-25
Compressive Strength(MPa)		≥28	≥28	≥25	≥25	≥28	≥30
Chemical Composition (%)	Al2O3	55-65	25-38	28-38	40-52	60-70	70-80
	SiO2	25-35	50-60	45-55	45-55	25-35	15-25
	MgO	1~3	5 ~10	11 ~14	7~9	0 ~1	0 ~2
	Others	<5	<5	<5	<5	<5	<5