Ultra Lightweight Alumina Bubble Brick for Furnace Refractory
Product Description
Alumina Bubble Brick is a brick made of alumina hollow spheres as the main raw material, high-performance alumina ultrafine powder as an additive, organic materials as a binder, and dried and formed. It has low thermal conductivity, thermal insulation and high compressive strength, and can work at the maximum temperature below 1800ºC. Alumina foam brick has excellent heat resistance and heat insulation performance, and can be directly used as the working lining of high temperature kiln. It is mainly used in metallurgy, refractory materials, ceramics, petrochemicals and other fields, and can be used as a refractory lining for high-temperature kilns. Pyrolysis furnace, hot air furnace, heating furnace, tunnel kiln, slab kiln, crucible furnace, electric furnace, etc.
Features
1. High working temperature:
Alumina Bubble Brick can reach more than 1750 degrees and has good thermal stability. The change rate of the reignition line is small, and the use time is longer.
2. Optimize the structure and reduce the weight of the furnace body
3. Save material
4. Energy saving
|
Properties Brand |
LG-99 |
LG-90 |
LG-85 |
|
|
(%) Chemical Analysis |
Al 2 O 3 |
≥99 |
≥90 |
≥85 |
|
SiO 2 |
≤0.3 |
≤7 |
≤13 |
|
|
Fe 2 O 3 |
≤0.1 |
≤0.1 |
≤0.2 |
|
|
Bulk Density ( g/cm 3 ) |
1 . 45~1 . 60 |
1 . 45~1 . 60 |
1 . 45~1 . 60 |
|
|
Cold Crushing Strength (MPa) |
≥15 |
≥15 |
≥20 |
|
|
@ 1600 ºC Permanent Linear Change (%) |
±0.2 |
±0.2 |
±0.3 |
|
|
@ 800ºC Thermal conductivity (W/m.k) |
≤1.4 |
≤1.4 |
≤1.4 |
|
|
(ºC) Maximum Service Temperature |
≥1800 |
≥1700 |
≥1600 |
|
Q1 : How can you control your quality?
A1 : For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q2 : What is your lead time?
A2 : It usually needs about 15- 20 days after receiving the PO.
Q3 : Do you provide free samples?
A3 : Yes, free samples are available, generlly speaking, the buyer shall bear all the delivery cost.
Q4 : What is your payments terms?
A4 : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.
Q5 : Can we visit your company?
A5 : Yes, for sure, you are welcome to visit JUCOS company.
Q6 : What standards do you have?
A6 : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc.
The third party testing is all available for us.
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