We are insisting on using integrated industry chain optimization to enhance core competitiveness so that we can continuously improve the quality of Mullite Brick, Mullite-SiC Brick, Castable For Aluminium Melting Furnace. All our staff take honesty and customer first as the tenet. Customer satisfaction is the criterion of our service, and we serve the company with concrete measures. We will continue to work hard to live up to the historic opportunities given to us by the generosity of the times, and we will keep moving forward. Thus far, our item may be shown in most foreign nations as well as urban centers, which are sought after simply by targeted traffic. Long-term partnership and fruitful cooperation is our goal, we hope that with our strong spirit of innovation and initiative, can accompany our customers and partners struggle together.
1,Knowledge of Semi-silica Brick:
Semi-silica brick is used between clay brick and silica brick.it's thermal shock resistance is better than silica brick.The shrinkage of clay is counteracted by quartz expansion in the course of use,as a result, the volume change of the product is small, sometimes slightly expanded,therefore, the air tightness of masonry is good.Another feature of the product is that when the high temperature slag contacts the brick surface, a layer of glazed material with high viscosity forms on the brick surface.,it's thickness is 1-2 mm, blocking the pore, preventing the slag from penetrating into the brick and forming a protective layer, which improves the corrosion resistance of the brick.
Semi-silica Brick has good resistance to acid slag, high temperature structural strength and relatively stable volume,for this reason, the products are mainly used in coke oven, acidified iron furnace, metallurgical furnace flue, ladle lining.
The typical and commonly used semi-silica brick products are paraffin bricks, which are white or grayish white,their high temperature properties are similar to clay bricks, and their refractoriness is between 1670~1710℃.
2,Index of Semi-silica Brick
|
ITEM |
UNIT |
PB-80 |
|
|
SiO2 |
% |
69-72 |
|
|
Fe2O3 |
% |
1.3-1.5 |
|
|
Al2O3 |
% |
23-26 |
|
|
creep rate |
1050℃*(0-25h)% |
0.08 |
|
|
Acid resistance |
% |
99.8 |
|
|
Refractoriness under load |
℃ |
1330-1370 |
|
|
Porosity |
% |
16-19 |
|
|
Cold crushing strength |
MPa |
50-55 |
|
|
Bulk density |
g/cm3 |
2.10-2.20 |
|
3,Packaging,Storage and Delivery:
The product is packaged in the form of wooden pallet + stretch film + plastic steel strip,it is waterproof and fir,the products are stored in dry, moisture-proof and ventilated environment,after packaging, they are marked and shipped to Qingdao Port.
4.Main purpose
Mainly used for smelting non-ferrous metals such as coke ovens and sponge iron,steel factory teeming ladle and Inner lining of torpedo car equipment.
5.Good feedback of product use effect,the products have been exported to Russia, Australia, Oman
6.We are a professional supplier, who can provide customers with free product technology, use and other issues.
Do you want to find a professional supplier of refractory products?
Do you want to find a stable and credible supplier?
Then please contact with us
Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com
TEL: 86-0533-4188518 / FAX: 86-0533-4188518
Rose:+86-13275332819(wechat/whatsapp number)
We have been committed to product technology and manufacturing innovation and research and development, and strive to provide customers with more optimized and economical Customized Refractory Semi-Graphite SIC Bricks For Blast Furnace. Please your inquiry for more details or request for dealership in selected regions. Scientific management, high-quality products and satisfactory service are our development tenet.
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