The series of products are formed by special technology , Low thermal conductivity refractory brick has characteristics of high strength and low thermal conductivity compare with same kind product which could be used on the heat insulation separator of CFB boiler where has higher requirement of strength .
High strength low thermal conductivity refractory brick
Technical performance index :
|Project & Grade||DFGD-0.4||DFGD-0.5||DFGD-0.6||DFGD-0.7||DFGD-0.8|
|Volume density g/cm3 ≤||0.4||0.5||0.6||0.7||0.8|
|Compression pressure under normal temperature MPa ≥||1.0||1.5||2.0||2.5||3.0|
|Reheating linear change rate ≤2%°C x h||900 x 8||900 x 8||900 x 8||1000 X 8||1000 x 8|
|Thermal conductivity，（350±25℃) W/m.k ≤||0.14||0.14||0.16||0.18||0.22|
Remark: We could adjust technical performance index according to client’s working condition.
1: Low thermal expansion / Low calcining expansion/ Low heat expansion/ Low thermal dilatation
2: The thermal conductivity reduces along with the temperature growth
3: Good thermal shock resistance performance
4: Stable chemical characters
5: Excellent abrasion resistance/ abrasion-ability/ wear resistance/ wearability
6: High performance of alkaline medium erosion resistance
7: The refractoriness under load can be 1700℃
8: Dense crystal structure
9: High bulk density
10: High mechanical strength at normal and high temperature
11: Low creep and low permanent liner change rate.
This kind of brick is we developed the other type light weight refractory product according to the market need , it has advantages of high temperature resistance ,low thermal conductivity ,low iron content ,high compression strength and good thermal stability which could be used directly on the heat insulation separator and the heat insulation surface of back-end furnace wall . …
Alumina bricks are made from bauxite of super quality, bonding chamotte and additives. The main Al203 content is 48%-99%. The advantages of high alumina bricks are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance. …
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time:3 days for common shape samples;15 days for special shape samples.Within 30 days for batch goods.
1.Payment: T/T, Western Union,LC; Usually 30% paid by T/T as deposit,the rest 70% balance paid by T/T before delivery .
2.MOQ: Usually 1Tons,Customers can order certain PCS for special brick.
3.Quality Warranty: 3years.
1.On wooden pallets with plastic cover.
2.According to customer’s requirements.