Calcined Alumina Refractory Powder

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Product Description:

Specifications

1.heat resistant
2,material origin: alumina from Australia
3, produced as per general international law of Bayer
4,ISO, SGS.

Features:
1,heat-resistance and corrosion-resistance
2,Superior quality with competitive price
3, superior material from Australia          
   

Product Description:

Taking the superior industrial alumina as raw material, Calcined Alumina is produced through the method of advanced high temperature down draught kiln with scientific calcine. These make sure it has the advantages as follows: less trash, high transfer rate, stable contraction, and great variety of goods. The shape is fine sand or powdery with white color, As its equal particle sizes and dispersing easily, it has a good sinterability. Calcined Alumina is the basic raw material for heat-resistance and corrosion-resistance products, such as high-alumina refractory, high level ceramic products, car used sparking plug, electronic ceramic parts, material for iron and steel oven, high temperature friction material and polishing grinding products, ect.

Calcined Alumina Parameters

ApplicationModelAl2O3Na2OFe2O3SiO2TiO2LOITrue Densitya-Al2O3D50Particle SizeSpecific Surface
Unit≥ %≤%≤%≤%≤%≤%g/m3≥ %umumm2/g
Dry pressing/CIP seriesTCH-10199.70.080.020.0180.0060.153.9696752--30.6-0.8
TCH-10299.60.10.020.0180.0060.153.9595752--30.6-0.8
TCH-10399.50.20.020.0180.0060.23.9595752--30.8-1.0
TCH-10599.40.30.020.0180.0060.23.9393752--30.8-1.0
Injection mouldingTCH-21399.50.150.020.0180.0060.153.9595753--40.5-0.6
TCH-21199.70.10.020.0180.0060.13.9696753--50.5-0.6
Refractory seriesTCH-3199.40.30.020.0180.0060.153.9290752--30.1-0.8
TCH-3099.50.250.020.0190.0080.13.959532--41.0-1.2
TCH-3399.40.30.020.0180.0060.153.9595432--30.9-1.0
TCH-00399.40.30.020.0180.0060.133.959543--51.0-1.2
TCH-35990.30.020.020.0060.23.990433--50.9-1.0
Active A-Al2o3TCH-5H98.80.150.020.15 3.95951
TCH-5L98.60.150.020.15 3.93930.8
Polishing seriesTCH-61970.10.1-0.20.18-2 3.959540-60
TCH-62970.10.1-0.20.18-2 3.95954--5
TCH-63980.10.05-0.60.18-0.2 3.97954--5
Glazing seriesTCH-799.60.20.020.018 3.959555
TCH-70399.60.20.020.018 3.959515
TCH-71399.60.20.020.018 3.95954


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Q:Can anyone tell me what is the material of which the mould for refractory is made?
Wooden mould will be used when refractories die is produced in small batch or composition of the refractory is complex. At the time of mass production, steel mould wil be used. The steel mould is a kind of imprint mold or cold mould. The cold mould, according to the working conditions of the products it manufactures, should have high hardness, strength, wear resistance, sufficient toughness and high hardenability. Commonly used steel types include high-carbon and low-alloy steel, high-carbon and high-chrome steel, chromium molybdenum steel and tungsten carbon chromium steel. You can choose them based on your needs
Q:What does refractory mean?
What is refractory material?Refractory material generally refers to the inorganic refractory degree over 1580oC non metallic materials. It includes natural ore and various products in accordance with certain requirements after a certain process. With the volume stability of high temperature mechanical properties, a good, is the necessary equipment for all kinds of high temperature materials.
Q:Can refractory be used as sealing element?
It can. For example, a kind of irregular part that is made of fiber or some injection mix is used for sealing things.
Q:What kind of materials are needed to make refractory bricks?
Refractory materials generally refer to inorganic non-metallic materials with fire resistance above 1580℃. It plays an important role in metallurgy, nonferrous metals, chemical engineering, ceramics, and industrial production. Different industry needs different materials. You can turn to the knowledgeable internet.
Q:Why the corundum can be used as refractory
Do you need white corundum Its main chemical element of corundum is the 99.3% aluminium oxide and it is sintered byelectric furnace, so it can be used as a refractory raw material, the other can also be used as grinding wheel. It is very useful
Q:Who knows about the fire endurance of sintered shaly hollow bricks?
Sintered shaly hollow bricks of Chu area have high intensity. The average compressive strength of them is up to 15.8, which matches with M7.5 cement mortar that has advantages of low water absorption, and good anti efflorescence performance. The fire endurance of sintered shaly hollow bricks should not exceed1050 degrees otherwise they will burn excessively. I, actually, think that the temperature should be controlled within 980 degrees. I hope my answer may help you.
Q:What are grade classifications of the external walls fireproofing material?
1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3 combustion performance is level B2 insulation material: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc.
Q:which is better as household fireproof material ?
If it is from the perspective of fire rating inorganic active insulation material for wall thermal, cement foam insulation board, glass beads of insulation movitrified micro bead thermal insulation mortar, rock wool board, glass wool board, ect.. thermal insulation material are Class A fireproofing, polyphenyl board, extruded sheet, phenolic foam board, Polyurethane board, ect..belong to B1 level fireproofing, if it is used for external wall thermal insulation in decorative board, then rock wool board is more often used.
Q:The effect of a high content of water in liquid resin exerted on refractory material?
For one thing, Substandard whiteness, transportation, low quality and the storage of refractory material may account for this. For another, a high content of moisture reduced the performance of refractory material. A high content of moisture is equal to buy water with same money in terms of trade settlement. Based on this, we can’t consider the super-standard water content from a single aspect, because the water content in refractory material is definitely super-standard, and another problem is particle size. Many people hold the idea that excessive amount of water content may revive its original performance, but it tends to have influenced the quality of refractory material.
Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?
I feel the concrete thickness should depend on the experience and the actual situation. As for the specific method, I also can't say too accurately. If it's ladle, it generally chooses alumina magnesia castable.

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