Refractory grade White fused alumina higer Sodium

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White Fused Alumina ( WFA OR WA) is made from chemical by high furnace or tilting furnace at high temperature . it is very impor

White Fused Alumina

White Fused Alumina ( WFA OR WA) is made from chemical by high furnace or tilting furnace at high temperature . it is very important raw material for advanced refractory and abrasives. Its properties are as following :

Property

Size

0-1 1-2 3-5mm

Fine (mesh)

0-180 0-320

Spec

Typical Value

Spec

Typical Vlalue

a-Al2O3

99%Min

99.5%

99%Min

99.2%

SiO2

0.2%Max

0.08%

0.2%Max

0.12%

Fe2O3

0.2%Max

0.01%

0.25%Max

0.05%

Na2O

0.4%Max

0.23%

0.4%Max

0.30%

Principal crystalline Phase

a-Al2O3

Crystal systerm

Hexzagon

Color

White

True density

3.95Min

Bulk density

1.75-1.95

Mohs hardness

9

Size (mm)

85 53 31 10

Fine(Mesh)

-80,-120,-240,-320

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Q:What defect does fused cast refractories have ?
What defect doesfusion-cast refractory material have ? In glass production, in addition to refractory as a building material and consider its durability, we still must attach great importance to its influence on glass quality. In such cases, the impact on the quality of glass is mainly the defects that eroded down refractory materials mixed in the glass, thus being prodeced of grass products. Defects are mainly foreign body defects such as sand, knot and wave reinforcement. What may directly affect the quality of glass are sidewall block and brick kiln bottom. I hope my answer can help you.
Q:what's the application of fireproofing abs materials?
ABS is acronym of Acrylonitrile Butadiene Styrene )it is a kind of thermoplastic high polymer material with properities of high strength, good toughness, easy processing and molding. it has high strength, corrosion resistance, high temperature resistant, so it's often used in the plastic shell manufacture of instruments.
Q:Is the ball mill used in production of refractories?
It depends on what refractory you produce.
Q:Fire rating of decoration materials
code for fire protection design of buildings
Q:The development prospect of fire-resistant material
Concrete has a broad employment direction while refractory material is not in popular demand. But if you do well, you are one of ethe experts.
Q:Who knows about the fire endurance of sintered shaly hollow bricks?
1. after roasting at high temperature of more than 1200 degrees, shale burned bricks in construction works can be free from expanding with heat and contracting with cold. 2. masonry walls can be plastered with no needs of any anti-cracking, reinforcement measures, and walls will not bulge and crack, which can reduce the construction cost, as well as are preferred building materials of frame structural engineering. 3.They have good sound insulation and thermal insulation performances, are one of the green building materials that the state currently promotes. 4. They 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.
Q:Who knows the texture of fire-proof wooden door material?
The so-called fire doors are only posted a layer of fireproof material. Door selection still depends on the timber inside. The simplest way is to see the weight value, fireproof material layer, and they are generally paint-free doors. with fireproofing function..
Q:Which kind of furnace hearth refractory is better?
Coal is acidic medium, so the matched material should be acidic refractories oriented, like silica bricks. For example, the coking coke oven and carbon furnace made of carbon are in reducing atmosphere, so they use silica bricks which have low price and good high-temperature indicators. If the part has special requirements, you can then consider other refractory on request.
Q:How is grade of fire endurance divided?
Does anyone know about grade of fire resistance? How is grade of fire endurance divided?
Q:Which kind of external wall fire barrier zone material is better?
The following types are: rock wool, aerated concrete, phenolic aldehyde and foam cement rock wool fire barrier zone "rock wool board" mainly uses water-repelling rock wool board produced by pendulum method as thermal insulation layer materia, and connecting and fixing base wall by binding and nail bonding, it is composed level A non-combustible building energy efficiency thermal insulation system by plastering layer composed by plastering mortar and glass fiber mesh and decorative mortar finishing layer or coating. Good air permeability

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