Al2O3 Ceramic Substrates Cellular For Catalytic Converters

 

 

Description:

 

    After coated with catalysts, this product is applied in catalytic converter of gasoline vehicle to catalyze, convert and purify the exhaust, making vehicle exhaust reaching standards of Euro IV and Euro V.

 

Benefits of Products:

 

● Thin wall thickness

● Low pressure drop

● High surface area

● Height compressive strength

● Low thermal expansion coefficient

● Good thermal impact resistance and thermal shock resistance

● Excellent compatibility with various active composition in catalyst

●Good performance in cold start, low ignition temperature, quick temperature rise, little air resistance, and high conversion efficiency.

 

 

2.   1. Product use

 

 After coated with catalysts, this product is applied in catalytic converter of gasoline vehicle to catalyze, convert and purify the exhaust, making vehicle exhaust reaching standards of Euro IV and Euro V.

 

2．Overall dimensions standards

 

Item	Standard value	Tolerance range	Remark
wall thickness	0.17MM	＋0.03MM －0.02MM
density scope	440g/L	±60g/L
Outside dimension	≤100MM	±1MM
	＞100MM	±1%
Perpendicularity	≤100MM	≤1%height
Parallelism	＞100MM	≤1%height

 

Physical and chemical properties

 

Item		Standard value	Inspection Method
chemical components	Al2O3	35.2±1%	Chemical analysis
	SiO2	50.9±1%
	MgO	13.9±1%
Cordierite Crystal phase		≥90%	X-ray diffraction techniques
Compressive strength	AA xis	≥15 Mpa	Compressive strength technique
	BA xis	≥2 Mpa
	CA xis	≥0.15 Mpa
Water absorption		20-26%	Weighting methord
Softening point		≥1400	High temperature oven
Refractory		≥1600	Cryptol furnace
CTE(800℃)		≤1.2*10-6/℃	Netzsch dil 402  PC
Thermal shock resistance		550℃three times(air cool)	Muffle furnace