Alumina Silicate Fire Brick for Glass Furnace Silica Refractory
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Specifications
silica refractory brick with high CCS, stable performance,
good package and delivery on time
Product name:silica refractory brick for glass furnace
Chemical and physical specification:
| specification | machine pressed | checkers&handmade |
chemical analysis Al2O3 % max SiO2 % min Fe2O3% max alkalies % max TiO2 % max CaO % max free quartz % max |
1 95 1 0.2 0.2 3 1
|
1 95 1 0.2 0.2 3 1
|
bulk density kg/m3 min true density kg/m3 max | 1800 2340 | 1750 2340 |
| apparent porosity % max | 21 | 23 |
cold crushing strength mpa min | 30
| 20
|
permanent linear change % max 1500℃/4hr | 0.2 -0.2 | 0.2 -0.2 |
| creep 1500℃/20-50hr/0.2N/MM2 % max | 0.2 | 0.2 |
refractoriness under load 0.2n/mm2 0.5% ℃ min 2.0% ℃ min 5.0% ℃ min |
1530 1600 1600 |
1530 1600 1600 |
- Q: Why will expand when heated brick
- Because the production of raw materials are silica brick, brick with SiO2 content of not less than 95% of silica as raw materials, adding mineralizer and binder, through mixing, molding, drying, sintering and other processes in the system
- Q: Which material is good for furnace refractory?
- Kiln types of refractories is very extensive, selection of refractory materials according to the type of furnace furnace temperature and use of selected refractory material, refractory material is divided into custom products of refractory bricks and unshaped refractory castable series products. According to chemistry, it is divided into acidic, neutral and alkaline materials.
- Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?
- Mainly depends on the color and density of brick. Another black clay brick and brick with iron oxide formation and how much the size of bricks
- Q: Can iron oxide be used as refractory material?
- Is widely used in this area. Mentioned refractory material of high school textbooks generally refers to three two aluminum oxide (alumina), alumina is also used as a refractory material, refractory crucible, porcelain, artificial gemstones.
- Q: Common bond brick?
- Manufacturing for silica brick binder hi-li sulfate pulp waste liquid and lime milk. When lime milk is used as a bond, it acts as a plasticizer. To increase the strength of lime brick in the drying process, as mineralizer in the firing, promote the transformation of quartz.
- Q: What are the main constituents of refractory bricks?
- Clay brick and clay brick are mainly composed of mullite (25% ~ 50%), glass phase (25% ~ 60%) and square quartz and quartz (up to 30%). Usually with hard clay as raw material, pre calcined mature material, and then with soft clay, semi dry or plastic molding, the temperature at 1300~1400 C fired clay brick products. Can also be added a small amount of water, glass, cement and other binders to make non burning products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast furnaces, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory bricks.
- Q: Why is the highest brick coke oven temperature measuring point temperature not exceeding 1450
- That is because the brick load softening point the maximum temperature is 1450 degrees.
- Q: Why in the production of the brick to detect the volume density
- Fast density test, please consult an instrument.
- Q: Physical solid waste disposal
- The amount of addition is related to the shape and weight of the brick. The bricks can be added to 20% weight less than 25kg; bricks above 25kg can be added to 30%; for the specific type of brick can be added 30%. into waste silica brick should pay attention to this problem
- Q: Such purpose and scope please give me detailed points thank you
- Acid refractory brick is mainly composed of tridymite and cristobalite and quartz and a small amount of residual glass phase.
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Alumina Silicate Fire Brick for Glass Furnace Silica Refractory
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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