$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 1$
$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 2$
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$Brown Fused Alumina for Refractory, BFA sands, Abrasives$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 1$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 2$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 3$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 4$

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$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 7$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 8$

$Brown Fused Alumina for Refractory, BFA sands, Abrasives System 9$

Brown Fused Alumina for Refractory, BFA sands, Abrasives

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Loading Port:: Qingdao

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 3000 m.t./month

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Brown Fused Alumina for Refractory, BFA sands, Abrasives

is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials

Physical and chemical analysis for brown fused alumina:

Purpose	Specification	Chemical composition(%)	Magnetic material content(%)
Al2O3	Fe2O3	SiO2	TiO2
Abrasive Grade	F	4#—80#	95.0 Min	0.3 Max	1.5 Max	3.0 Max	0.05 Max
90#—150#	94.0 Min	0.03 Max
180#—240#	93.0 Min	0.3 Max	1.5 Max	3.5 Max	0.02 Max
P	8#—80#	95.0 Min	0.2 Max	1.2 Max	3.0 Max	0.05 Max
100#—150#	94.0 Min	0.03 Max
180#—220#	93.0 Min	0.3 Max	1.5 Max	3.5 Max	0.02 Max
	F230-F1200	92.5 Min	0.5 Max	1.8 Max	4.0 Max	—

Purpose

Specification

Chemical composition(%)

Magnetic material content(%)

Al2O3

Fe2O3

SiO2

TiO2

Abrasive Grade

4#—80#

95.0 Min

0.3 Max

1.5 Max

3.0 Max

0.05 Max

90#—150#

94.0 Min

0.03 Max

180#—240#

93.0 Min

0.3 Max

1.5 Max

3.5 Max

0.02 Max

8#—80#

95.0 Min

0.2 Max

1.2 Max

3.0 Max

0.05 Max

100#—150#

94.0 Min

0.03 Max

180#—220#

93.0 Min

0.3 Max

1.5 Max

3.5 Max

0.02 Max

F230-F1200

92.5 Min

0.5 Max

1.8 Max

4.0 Max

—

Application

1. it are suitable for grinding high-speed,high carbon steel

2.high-grade refractory materials

3.abrasives tool

4.grinding and polishing

5.ceramics

6.LED

7.sandblasting

8.aviation

Pictures:

$Brown Fused Alumina for Refractory, BFA sands, Abrasives$ $Brown Fused Alumina for Refractory, BFA sands, Abrasives$

If you’ve any enquiries, please don’t hesitate to let us know.

Q:How long is the duration of fire resistance of hollow glass magnesium board: It belongs to second level refractory building. The fire resistance limit of prestressed hollow slab is 0.7 hours, according to provision 3.2.7 and 5.1.5 of fire safety rules. When reaching 20 thick protective layer, the fire resistance limit of the prestressed hollow slab is 0.7 hours. When reaching 30 thick protective layer, the limit of the fire resistance of prestressed hollow plate is 0.85 hours. Protection layer of prestressed hollow board prefabrication is 15, plaster ceiling has 12 protection layers, the total protection layer amounts 27, which can achieve fire resistance limit of not less than 0.75 hour.

Q:Using what kind of melting aluminium furnace refractories is more appropriate?: If it's the ordinary, you can use high aluminum refractory brick with general clay, GB/T 3994-2005 clay heat insulation refractory brick. If you need these with good material, there is high alumina thermal insulation refractory brick, GB/T 3995-2006 high aluminum heat insulation refractory brick, models have A13 and material is the alumina, A13 50 u, high insulating brick B5.Intermediate insulating brick B2, etc. Dolomite brick: good hang kiln performance, good erosion resistance, but brick is usually without f - CaO, hydration, and difficult to transport and storage, less used in the production. Magnesia-chrome bricks: good hang kiln, used in calcining zone. The disadvantage is that its thermal shock resistance is poor and plus hexavalent Cr is toxic, the production and use of magnesite chrome bricks in international countries gradually reduce. Now unit using the brick find replacements as soon as possible.

Q:How to do environmental impact assessment for refractory Co., Ltd.: Give you a list of data, you can refer to. List of required data for environmental impact assessment 1) name, type, specification and quantity of main process equipment. 2) the supply and consumption of raw and auxiliary materials (annual consumption and unit consumption of raw materials, ingredients, electricity, new water and recycled water). 3) public utilities: power supply system: need to build several substations? What is the size of the substation? Water supply system: fresh water consumption, circulating cooling water consumption, domestic water consumption, production water consumption, fire water consumption, respectively, how much? Heating system: if the project has a self heating system, the size of heating boilers, types, scale, fuel types, sources, annual consumption, the boiler's circulating water supply.

Q:The primary problem, does the gas permeable brick is fired refractory bricks(refractory) ?: Yes. After moulding by casting in the firing of 1450 ° degrees.

Q:What are the uses of refractory materials of glass furnace?: What are the uses of refractory materials of glass furnace? The refractory materials of glass furnace have a good corrosion resistance to steel slag, but are poor in thermal shock resistance, and the deformation temperature of loading at high temperature is low. Magnesite chrome bricks which are made of chrome ore and magnesia In different proportions have a good thermal shock resistance. They are mainly used as crown bricks of basic open-hearth furnace. The refractory materials of glass furnace are mainly applied to open-hearth furnace, oxygen-blown converter, electric furnace, non-ferrous metal smelting as well as some high-temperature thermal equipments, and they can be used for reaction tanks and liners of autoclave.

Q:Physical and chemical indicators of various refractory.: There are too many of them.

Q:What substitutes are available for high-end refractories in addition to zircon sand?: Natural ore, synthetic raw materials such as industrial synthetic mullite, etc..

Q:How long is the fire-resistant time of fireproof wooden door?: fire endurance class A (1.5 hours), class B (1.0 hours), class C (0.5 hours).

Q:Who knows what kind of fire prevention materials are there?: Plant use general steel structure more often without too much modification. If there is a need for modification, boards which can meet the requirements of fireproof are suitable, such as gypsum boards and aluminium sheets. As for coating, it is favorable to use coating that has fine powder, high density and better sealing. Hardening agent mainly depends on the specific requirements.

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