China High Alumina Cordierite Ceramic Honeycomb Heater for Catalyst Substrate

Ceramic Honeycomb Heater Description:
Honeycomb ceramic is composed of countless equal holes. The structure of it is like honeycomb shape and it is a kind of new ceramic products. The biggest hole number of it has reached 20~40 per square centimeter, the density is 4~6 grams per cubic centimeter and the water absorption rate is above 20%.

Porous Cordierite Honeycomb Monolith
Ceramic honeycomb used for RTO application
Cordierite is a magnesium alumina silicate material, which has very low linear expansion, low coefficient of thermal expansion and excellent resistance to thermal shock. Cordierite also offers an excellent range of mechanical strength, porosity criteria, and excels in cost-effective extruded and dry-pressed forms.
Cordierite Honeycomb Monoliths are divided into two types: porous type and compact type.
Application:
Widely used in chemical industry, electric power industry, metallurgy industry, petroleum industry,electronics industry,machinery industry,etc. The development prospect is considerable.
Features:
1.High strength.
2.High temperature resistance.
3.Corrosion resistance.
4.Wear resistance.
5.Good thermal conductivity.
6.Environmentally friendly.

Spec.Quantity of channelsWall thickness (mm)Surface area (m2/m3)Free volume (%)Average weight (min.) (kg/m3)150*150*30060*600.5131570680150*150*30050*500.7105058680150*150*30040*400.788365518150*150*30025*251.057367502

Data&ItemHight Frequency Ceramic75% Ceramic95% Ceramic99% CeramicTitanium OxideZirconiaMulliteCommentContentTalc 85%alumina≥75%alumina≥95%alumina≥99%Titanium Oxide≥90%Zirconia≥90%3ALz032si02
Fring temperature(Degree C)1350±201400-14501650-16801780-18001450±201550-16001260-1540
Proportion(g/cm)2.83.2≥3.6≥3.8≥3.7>63.25
Dielectric Strength(kv/mm)15131515
15
Volume densityWater absorption(%)<0.02<0.015<0.01<0.01<0.01<0.01<0.01
Compressive Strength56022002400370072005000
Hardness(HRA)≥75≥75≥82≥88≥80≥8565-70
Volume Resistance(cm)≥1012>1012>1012>1012<1012>1012≥101225Degree CBending Strength(MPA)126280320400150700180
Thermal Expansion(*10)6-7.566.2-8.56.8-8
9-104-4.425Degree C-700Degree CPermittivity(MHZ)65.58.59.5
7
Roughness(Ra)
≤0.8≤0.8<0.1

Mirror Polish
<0.3≤0.1≤0.05≤0.03