China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng

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Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for Installing Fire Bricks, Kiln Refractory Bricks, Castable Material, Looking to the future, a long way to go, constantly striving to become the all staff with full enthusiasm, one hundred times the confidence and put our company built a beautiful environment, advanced products, quality first-class modern enterprise and work hard!
China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng Detail:

Alumina Bubble Brick Description

Alumina bubble fire brick is a new type high temperature heating insulation materials and made of industrial alumina in the electrical furnace through smelting and blowing. alumina bubble refractory brick crystal form is a-Al2O3 microcrystal and main body is alumina bubble which can be made to be all kinds of products with various shapes for serving the highest temperature of 1800℃ with high mechanical strength and low bulk density.

Properties of Alumina Bubble Brick

  • Light weight,
  • Saving energy,
  • Lower construction cost,
  • High temperature resistance,
  • Low reheating linear change,
  • Good thermal shock resistance.

Manufacturing Process of Alumina Bubble Brick

Aluminium bubblle firebrick adopt alumina bubble ball as the main raw materials, high performance ultrafine powder as the annexing agent and organic substance as the binding agent through molding and drying, and then are fired in the high temperature shuttle kiln.

Advantage of Alumina Bubble Brick

Aluminium bubblle fire brick has the features of heat insulation and low thermal conductivity, which can result the great heat insulating effect, reduce heat waste and improve thermal efficiency. using aluminium bubblle refractory brick can save energy high up to 30%. and alumina bubble block’ service temperature is high up to 1750 ℃. the thermal stability is good and the reheating linear change rate is low, aluminium bubble block can results the long service life.

Rongsheng Refractory Alumina Bubble Brick Specifications

Item Alumina Bubble Brick
Types Unit 85# 90# 99#
Maximum Service Temperature 1680 1700 1800
Al2O3 % ≥85 ≥90 ≥99
SiO2 % ≤15 ≤8 ≤0.2
Fe2O3 % ≤0.2 ≤0.2 ≤0.2
Bulk Density g/cm3 1.4-1.7 1.4-1.7 1.4-1.7
Cold Crushing Strength MPa ≥12 ≥10 ≥9
Refractoriness Under Load (0.1MPa, 0.6%) ≥1650 ≥1760 ≥1760
Reheating Linear Change (1600℃*3h) % ±0.3 ±0.3 ±0.3
Thermal Expansion Coefficient(Room temperature -1300℃) ×10-6℃-1 ~7.8 ~8.0 ~8.6
Thermal Conductivity(Average temperature 800℃ ) W/(m·K) ≤0.8 ≤1.3 ≤1.5

Application of Alumina Bubble Brick

Alumina bubble brick is a kind of very important refractory material for resisting high temperature and special demands of positions for furnace and kiln, which is mostly used as insulating brick for insulation layer of furnace and kiln, and also aluminium bubble brick can be used for service linings in manufacturing high purity quartz for the electronics industry such as ceramic tile linings in gas turbines and backup linings in reactors.

Alumina Bubble Brick Manufacturer from RS Refractory Factory

RS refractory factory as a professional alumina bubble brick manufacturer in china, have many competitive advantages in the market. if you have demand of aluminium bubble bricks, or have some questions on aluminium bubble firebrick about physical and chemical indicators, please contact us for free, we will provide you with high quality aluminium bubble refractory brick.


Product detail pictures:

China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng detail pictures


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Like a result of ours specialty and repair consciousness, our enterprise has won a superb popularity amid buyers everywhere in the environment for China Fast delivery K26 Firebrick - High Quality Alumina Bubble Refractory Brick – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Chile, Libya, Kenya, We adhere to client 1st, top quality 1st, continuous improvement, mutual advantage and win-win principles. When cooperation together with the customer, we provide shoppers with the highest high-quality of service. Established good business relations using the Zimbabwe buyer inside the business, we've got established own brand and reputation. At the identical time, wholeheartedly welcome new and old prospects to our company to go to and negotiate small business.
  • Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
    5 Stars By Hulda from Latvia - 2017.12.31 14:53
    The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
    5 Stars By Carol from Costa rica - 2018.09.21 11:44
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