White Fused Alumina For Refractory Material

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Qingdao
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TT OR LC
Min Order Qty:
50 m.t
Supply Capability:
5000 m.t/month

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Product Description:

White Fused Alumina For Refractory Material

Specifications

White Corundum/WFA for Lapping and Polishing
1 Professional manufacturer
2 High purity
3 Good hardness and toughness

Product Description

White corundum/WFA is made from the high quality aluminum oxide powder by melting above 2,000°c in the electric arc furance and cooling.

Physical Index

True Density≥3.96g/cm3
Micro HardnessHV2000-2200
Mosh Hardness9
Refractoriness≥1850°c
Melting Point2250°c

Chemical Index

ApplicationSpecificationChemical Composion(%)
Al2O3Na2O
AbrasivesF12#-80#99.4min0.4max
90#-150#99.3min0.4max
180#-240#98.2min0.4max
1#-63#99.3min0.4max
Refractory

180#-0

200#-0

320#-0

 

99.3min0.4max
Powder

0-1mm

1-3mm

3-5mm

5-8mm

8-12mm

99min0.4max

Size Available

1 Abrasives F8-F1500, P12-P220, JIS240-JIS3000

2 Refractoy 0-1mm, 1-3mm, 3-5mm, 200mesh, 325mesh

3 Other specifal specification could be supplied as required

Main Applications

1 Coated and bonded abrasive tools

2 Lapping and polishing processe

3 Precision casting

4 Refractory material

White Fused Alumina For Refractory Material

White Fused Alumina For Refractory Material

White Fused Alumina For Refractory Material

White Fused Alumina For Refractory Material






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Q:What are the advantages and disadvantages of new external wall fireproof and thermal inuslation matertials?
STP has a certain chance to self-destruct. After the sealing layer is damaged, the property will be bothered. When filling the foam glass, burst foam cement and low-strength glass fiber, the structural requirements are very high with big spraying limitations. As everyone knows that rock wool absorb organic matters, and the government do not allow us to use self-insulation, so it is not the mainstream with too low adoption rates. In fact the owners shouldn't worry about this problem. Since the developers have installed it for you, it is useless to worry about it. The other is that for those who want the original balcony closed up, if you want to shovel the original balcony wall insulation, you must pay attention to ask the construction team before you start. Because it is common that the cold bridges formed thereby will cause water seepage and moisture condensation in the balcony.
Q:Which industry does refractory belong to?
It belongs to decoration industry.
Q:What is required to do refractory material?
What kind of refractory material? It’s too extensive.
Q:How to divide the materials according to the National Fireproofing Material Standard?
2,generally, the external wall thermal insulation materials is divided in accordance with fire rating: 1, the class A combustion performance of insulation materials : inorganic fiber spray coating, glass wool, foam glass, foamed ceramics, rock wool, foam cement, hole-closed perlite ect.. 2) class B1 combustion performance of thermal insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde, gelatine powder polyphenyl granule, etc. 3) combustion performance of class B2 insulation material: molding polystyrene board(EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. I hope it will be helpful for you
Q:What are included in roof thermal insulation fireproofing material?
Aluminium foil, bubble, aluminium foil/air bubbles/fireproofing aluminium foil thermal insulation material, fireproofing bubble thermal insulation material, fire retardant thermal insulation material, thermal insulation construction materials, aluminum foil insulation material.
Q:How many types of fire-resistant material?
1. Acid fire-resistant material refers to one with more than 93% SiO2. It is featured by resistance to the corrosion of acidic slag ad high temperature and easy to react with alkaline molten slag. 2. Alkaline refractory material generally refers to one with magnesium oxide or magnesium oxide and calcium oxide as the main component. It has high refractoriness and strong resistance to basic slag. 3. Silicate aluminum refractory material refers to one with SiO2, Al2O3 as the main component. According to the content of Al2O, it can be divided into three categories: half siliceous (15-30% Al2O3), clay (Al2O3 30 ~ 48%), high aluminum (more than 48% of Al2O3). 4. Fused cast refractory material refers to shaped refractory products made by high temperature melting and casting.
Q:Who knows about the fire endurance of A grade fireproofing glass doors?
The fire endurance of grade A fire resistance rolling shutter doors should be no less than three hours. Fire doors can be divided into A, B and C grades according to their fire endurance which should be no less than 1.20 h, 0.90 h and 0.60h respectively. Places where are difficult to set fire-proof bulkheads can use fire resisting shutters as partitions of fire compartments. The fire endurance of fire resisting shutters that include unexposed surface temperature rise as judging condition should be no less than 3 h. Fire resisting shutters that exclude unexposed surface temperature rise as judging condition should set up independent protection of closed automatic water spray system on both sides of shutters, and the duration of water spray system should be no less than 3.0 h.
Q:What is the material of fire resistant glass reinforced plastics grating?
What is the material of fire resistant glass reinforced plastics grating?
Q:The history of refractory material
Q:What's the refractoriness and how to measure the refractoriness?
Bottom each side length is 8 mm and upper side length is 2 mm. Under a certain temperature-rising speed, when heating, refractory's resistance to high temperature from melting is called refractoriness. The properties of cross section into an equilateral triangle and height is 30 mm. When it bends down until the vertex and chassis contact temperature is the refractoriness of sample. It bends due to the influence of its weight. Make the will-measured material into standard pyrometric cone.

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