Alumina Hollow Ball Bricks Introduction
Alumina hollow bricks is kind of new high temperature insulation materials, high temperature refractory hollow ball produced with smelted and blown in electric furnace.
Take the alumina hollow sphere refractory material as the main boby, Alumina hollow ball firebricks can be made into various shapes.The highest use temperature is 1800 degrees, the firebrick product has high mechanical strength the alumina hollow ball firebricks volume density is only 1/2of the corundum products.
Alumina Hollow Ball Bricks Advantages
High operating Temperature
Alumina hollow firebricks can reach to above 1750 degree,good heat stability. the charge rate of refiring line is small and longer using time
Optimize the structure and reduce the weight of the furnace body
High temperature resistant refractory materials are all of heavy firebricks. The bulk density is 2.6-3.0g/cm3，while the alumina hollow bricks is only 1.1~1.5g/cm3，under the condition of the same cubic meter volume. The alumina hollow ball refractory bricks can reduce the weight of 1.1-1.9 tons.
Materials Saving
To achieve the same use temperature, if using the heavy firebricks,the prices is equal to that of alumina hollow bricks, and considerable insulation material is needed.If alumina hollow ball bricks are used,1.1-1.9 tons heavy refractory bricks per cubic meter can be saved.
Energy Saving
Alumina hollow spheres have obvious thermal insulation characteristics and low thermal conductivity. The firebricks can play a good insulation effect,reduce heat emission and improve thermal efficiency,thereby realize the purpose of saving energy.The energy saving effects is more than 30% .
Alumina hollow balls are light refractories with high temperature resistance and excellent energy saving,which are very stable in various atmospheres. Especially in the high temperature Kiln at 1800 centigrade.Hollow ball bricks can be used for high temperature and energy saving(>30%)down draft kiln, shuttle kiln,molybdenum wire furnace ,tungsten rob furnace,induction furnace,nitriding furnace. For the reduce the weight of the furnace boby,reconstruct the structure, save the material and save energy, insulation refractory bricks will have obvious effect.
Alpha alumina powder is made of high quality industrial alumina as raw material, and adopts new high temperature down flame klin and scientific calcination process. With manual selection,clear classification,less impurity,high conversion rate, stable shrinkage and good consistency.
Alumina Hollow Ball Bricks Specification
| Item |
RS-84 |
RS-80 |
RS-1.2 |
RS-1.5 |
RS-1.7 |
| Al2o3%≥ |
84 |
90 |
98.5 |
98.5 |
98.5 |
Fe2o3%≤
|
0.8 |
0.5 |
0.3 |
0.3 |
0.3 |
SiO3%≤
|
15 |
9 |
1.0 |
1.0 |
1.0 |
| Bulk density,g/cm3 |
1.5 |
1.5 |
1.2 |
1.5 |
1.7 |
| Porosity,% ≥ |
58 |
60 |
62 |
60 |
58 |
| CCS Mpa, ≥ |
16 |
15 |
3 |
12 |
15 |
Thermal conductivity,1000℃
≤ |
1.2 |
1.15 |
0.95 |
1.05 |
1.15 |
| 0.1Mpa RUL,℃≥ |
1650 |
1700 |
1700 |
1700 |
1700 |
| Refractoriness≥ |
1800 |
1800 |
1800 |
1800 |
1800 |
Alumina Hollow Ball Bricks Manufacturing Process
Burdening
Molding
Body Drying
Firing
Finished Products
Burdening
Molding
Body Drying
Firing
Finished Products
Alumina Hollow Ball bricks Packing & Payment & Delivery time
1. Alumina Hollow Ball bricks Packaging Details
Fumigation pallet in size 920*920*1030mm,with cardboard ,wood box and cover protection,waterproof.
According to customer's demands.
2.Alumina Hollow Ball bricks Delivery Time
In stock within 5 days , customized in about 20 days
Alumina Hollow Ball bricks Payment Terms
Accept T/T ,PayPal, Alipay, L/C at sight , West Union and Money Gram.
Alumina Hollow ball Refractory Material Manufacturer & Supplier from RS Refractory Factory in China
We can provide our customers with professional and personalized products and engineering services according to the actual working condition and requirements of each customer, in order to meet customers’ increasing demand of energy-saving and products quality improving, Our tenet is: quality and credibility is fundamental, technology and service is the life.
