BFA Brown Fused Alumina Fused Alumina Hot Selling

BFA Brown Fused Alumina Fused Alumina Hot Selling System 1

BFA Brown Fused Alumina Fused Alumina Hot Selling System 2

BFA Brown Fused Alumina Fused Alumina Hot Selling

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 3000 m.t./month

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BFA Brown Fused Alumina Fused Alumina Hot Selling

Specifications

calcined Brown corundum
1) High Al2O3 Content: 95%min
2) Professional manufacture
3) Hot sale overseas

Calcined Brown corundum

1) High AL2O3 content: 95%min

2) Professional manufacturer

3) Prompt delivery

Product Description

Our brown fused alumina is tilting furnace type and crushed by Barmac.

we have own power station and bauxite bases, and adopt special cooling crystallization process, greatly improved its grinding precision and efficiency, applicable to make high-grade bond abrasives.

Main feature:

1). Low expansion coefficient

2). Good Hydrophily

3). High compression strength

4). Abrasives made from it is in blue color, no reticulate crack

Chemical index:

Al2O3 95.3%-96.5%

Fe2O3<0.3%< span="">

SiO2 ≤1.0%

TiO2 >2.0%

CaO ≤0.45%

Physical index:

True Specific gravity 3.97g/cm3

Cleanliness > 97.5%

Application of Brown Fused Alumina for Refractory Use, Sandblasting, Abrasives:

Resin ceramic abrasive, sand blasting, grinding and polishing, and is widely used in anti-wear runways, high-temperature coating matrix and metallurgy, chemical industry, and other high-level furnace refractories.

Pictures:

BFA Brown Fused Alumina Fused Alumina Hot Selling

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

Q:Which are roofing fireproofing material?: (1) Foamed concrete is a kind of fire-proof thermal inuslation matertial featured by good fire resistance and thermal insulation. Besides, it is also characterized by excellent sound proofing, penetration resistance, easy construction, safety and environmental protection without toxin and pollution. (2) Foam glass is featured by light weight, small heat conductivity coefficient and water absorbption, non-inflammability, fire resistance, high strength, no moulding, corrosion resistance, non-toxin and stable physical and chemical properties and thus widely used petroleum, chemical engineering and underground construction. It is also featured by thermal insualtion, heat/cold preservation and sound absorbption and thus can be used for thermal insulation of external wall and roof of civil builduing. Foam glass is featured by stable chemical property, easy to be processed and not easy to deforme, and durable. (3) With slag, basalt and other natural ore as the main raw material, rock wool, mineral wool and its products are made by high temperature melting into fiber, and then processing with binder. It has low thermal conductivity, fire resistance, easy construction and good effects of energy saving and thus is highly cost-effective. (4) With phenolic foam material as main material, phenolic resin plate is made by foaming thermoset phenolic resin. It is featured by light weight, fire resistance, no burning in the air, no smoking, non-toxin, no dropping and non-embrittlement and thus is an ideal thermal insulation material used in HAVC projects. Due to its high obturator formamen rate, low heat conductivity coefficient, good thermal insulation, water resistance and water vapor permeability, phenolic foam is an ideal thermal insulation material.

Q:What's the requirements of fire-fighting criteria of heat insulating material?: Specific provisions go as the following article 8: roof grassroots adopted duration of fire resistance is the non-combustible component that shouldn't less than 1.00 h's. Its roof insulation materials should not be below B2; Otherwise, the combustion performance of insulating material should not be below the B1 level. Article 9: The junction of the roof and wall, the insulation layer around the opening part of roof should use the grade A thermal insulation material to set level fire-fighting belt that width is not less than 500 mm. Article 10: the roof waterproof membrane or flammable insulation layer should adopt incombustible material to cover.

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:What a blast furnace refractories generally?: refractories for blast furnace include carbon brick and silicon-aluminum refractory. BF carbon brick inlcudes half-carbon charcoal bricks, microporous charcoal brick, ultra porous charcoal bricks, graphitic brick and mould pressing charcoal brick. tiles and molded graphite small charcoal bricks. I hope my answers above are helpful to you and your ideal anwers.

Q:What refractories are accessible with ease in daily life? This material is suitable as a disposable mold and crucible for melting brass.: The refractory that you want is high temperature furnace which you can buy from the market.

Q:What is the fire endurance of fireproof glass cotton?: of course,A level is better. A-class is non-combustible, class B is fire retardant, rock wool fire resistance is 800 ℃, glass wool fire resistance is 450 ℃ , class B has a relatively better thermal insulation effect, hope it can solve your doubts.

Q:I am a refractory material manufacturer, sold products, money is always not back, anxious to die, what is the way?: Looking for refractory materials network, you can conduct online transactions, funds guaranteed

Q:What are Grade-A waterproof inorganic thermal insulation materials?: 1. Foam ceramic insulation board Foam ceramic insulation board is made of inorganic ceramic material by high temperature baking and is called ceramic insulation plate for short. 2. Composite cement foaming insulation board With cement, fly-ash and micro-silica, composite cement foaming insulation board is a kind of hole-closed lightweight hydrophobic insulation board made by foaming, maintenance,cuttign and processing. 3. Aerated concrete panel Using lightweight material, silicious material and foaming agent and so on, aerated concrete panel is a lightweight concrete panel made by high pressure steaming. 4. Rock wool board With natural igneous rock as material and thermosetting resin as binder, rock wool board is a panel made by melting in high temperature through centrifugation. I hope it can help you.

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:How to divided the grade of external wall thermal insulation materials?: Synthesized the three versions of GB8624 (1997,2006,2011), external wall thermal insulation fire?rating can be basically divided into: A1, A2, B1, B2, B3 and other levels. There are many technical indicators to make specific division, but I partly cannot report for a while, because it is very professional and technical. I hope I can help you!

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