Definition:
Lightweight Refractories is also called a silicate brick. Light refractory material with a silica content equal to or greater than 91% and an apparent density of less than 1.2 g / cm3. The fire resistance and the softening temperature of the cargo are not very different from ordinary silica bricks with the same composition.
When using finely divided silica as a raw material, the critical particle size generally does not exceed 1 mm, and particles smaller than 0.5 mm are more than 90%. Add flammable substances to the material or use gas-forming methods to form the porous structure obtained by combustion. It can also be converted into non-combustible products.
Lightweight Refractories is mainly used for various parts of furnaces that need thermal insulation or need to reduce their own weight without direct contact with the melt, and there is no aggressive gas or rapid temperature change. When used at high temperatures, it should not come into contact with alkaline refractories. Depending on the material, the maximum operating temperature is 1200 to 1550 ° C.
Advantage:
1. High fire resistance, fire resistance at load is similar to that of bricks containing silicon dioxide with the same content of SiO2.
2. Because of its high porosity, its compressive strength, slag resistance, and corrosion resistance are not as good as silica bricks, but its resistance to thermal shock is improved.
3. When used at high temperatures, it does not come into contact with the base refractory.
4. High strength acid corrosion resistance.
5. Maximum operating temperature: 1200 ~ 1550 °C depends on the material.
Application:
Lightweight Refractories is used in bulkheads in the blast furnace section, carbonization and combustion chambers of coke furnaces, pyeong furnaces, immersion furnaces, glass melting furnaces, regenerators and slag chambers made of refractory and ceramics.
There are also furnace safes and other load-bearing parts. It can also be used for the high temperature bearing part of the high temperature blast furnace and the top of the mountain plate furnace.
Product Description:
| Lightweight Refractories With Silica |
| Item | GGR-1.0 |
| SiO2 % | ≥91 |
| Bulk Density ( g/cm3) | ≤1 |
| Cold Crushing Strength (MPa) | ≥2 |
| Linear Change on Reheating(%) | 1450℃,2h | ≤0.5 |
| Refractoriness Under Load
0.1MPa, ℃ | ≥1400 |
| Thermal conductivity(350±25)℃ (W/mK) | ≤0.55 |
Why choose us
Q: Are you trading company or manufacturer?
A: We are Manufacturer of refractory materials that have 4 plants in China; So we can provide you with high quality products at more competitive prices. we can provide you professional solutions about your problems. Although our salesman cannot reply you immediately, pls leave your email or phone number, we can let our technician directly help you ASAP.
Q: Do you accept OEM?
A: Sure, we can do OEM for much kind of brick.
Q: What information do we need to provide?
A: If you are clear about the products you purchased, please send us the brick drawings, index(include chemical and physical indicators )and order quantity.
If you are not familiar with it, please tell us the usage and working temperature, we will recommend the product to you.
Q: How long is delivery time?
A: The delivery time will be determined according to the quantity of the order. Our monthly output is 12000tons. We have good connection with shipping company, agency, as well as the local custom and port authority. making sure we deliver on time.
Q: When can I get the price?
A: We usually quote within 24 hours after getting your detailed requirements, like size, quantity etc. If it is an urgent order, you can call us directly.
Q: What is the HS code?
A: The HS code is 69022000.
Q: Is there any cost for the sample?
A: We provide free sample(Less 3 pcs) but don't bear the freight.
Q: What is the Warranty for the fire brick?
A: For all the brick, we have 1 years warranty. If any quality problems on our side occurred in this period, we will take on the shipping cost and replacement.
Packaging and shipping
Standard packing: waterproof inner packing + outer packing suitable for container transportation
What you will get from us is our best profession in service and the hospitality that you are willing to become our Friend.
So choosing us is the right choice for you. If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.
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