$Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price System 1$
$Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price System 2$

$Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price$

$Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price System 1$

$Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price System 2$

Raw Materials for Refractory:China Supplier 85% Calcined Bauxite Price

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000 m.t./month

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Packaging & Delivery

Packaging Details:	packed in 25kg or 50kg bags with water proof and seaworthy packing
Delivery Detail:	Shipped in 3 days after payment

High alumina bauxite or fine dust are made of high quality aluminum bauxite after firing in high temperature., High alumina bauxite or fine dust can made kinds of shaped or unshaped refractory materials with aluminate bauxite as the binder.

Application: widely used in metallurgy, petrochemical industry, hydroelectric, mechanical, buliding industrial department, used as lining of kinds of industry furance.

index

items	Chemical composition %				Water absorption %	Bulkdensity g/cm3
items	Al2O3	Fe2O3	CaO+MgO	R2O	Water absorption %	Bulkdensity g/cm3
Special grade ONE	≥85	≤1.8	≤0.4	≤0.4	≤3	≥3.10
Special grade TWO	≥80	≤2.0	≤0.5	≤0.5	≤5	≥2.90
Grade ONE	70-80	≤2.0	≤0.6	≤0.6	≤5	≥2.75
Grade TWO	60-70	≤2.0	≤0.6	≤0.6	≤6	≥2.65

Particle size

name	Particle size	limit
High alumina bauxite	10~5mm	>10,<5 less than 10%
High alumina bauxite	5~3mm	>5,<3 less than 10%
High alumina bauxite	3~1mm	>3,<1 less than 10%
High alumina bauxite	1~0mm	<1 less than 10%
High alumina fine dust	0.08mm	Screen residue less than 10%
High alumina fine dust	0.045mm	Screen residue less than 10%

China supplier 85% Calcined bauxite price

Q:What characteristics do A grade external wall fireproofing material have?: For characteristics of A grade external wall fireproofing material, its main raw material uses cold resistant and thermal insulated, environmental protection and energy saving material with good insulation, keeping the indoor temperature steady and making the environment more comfortable. It is several times better than other masonry in overall strength and resist capability, and it can also hang heavy objects such as air conditioners by directly nailing or installing expansion bolts. Single point hanging machine can withstand heavy objects with the weight of more than 45kg. It can also be directly fixed to the tiles, wallpaper, wooden plaques, paint, etc.

Q:Is it normal for caable fire resistant material to catch on fire?: Abnormal; aging is certainly one of the cause of the fire. That is caused only because of poor insulation and aging caused by short circuit, but a more important reason is configuration of air switch does not meet the requirements. If the capacity of air switch equals that of the cable, trip will happen at the moment when current is overloaded, not causing a short circuit or over current fire.

Q:I wanna ask what are the acidic refractories?: Usually, acidic refractory refers to a kind of refractory which contains a amount of silicon?dioxide. There are the following: (1) silica?brick with stronge acidity, unshaped silicious refractory, quartz glass and fused silica combined products; (2) semi-silica refractory with moderate acidity and pyrophyllite refractory; (3) clay-based refractory with weak acidity. The main features of the acidic refractories is resistant to the erosion of acidic substances (acidic residue) in high temperature, but is easy to react with alkaline material (basic slag). zirconite fireproofing material and silicon carbide as the special acidic refractories refractories are also in this category.

Q:For refractory knowledge. What is the ratio of clay ramming?mass?: Soil aggregates, dispersing agent, water reducing agent, plasticizer, binding agent and powder! ~ Bone meal feed approximately 6, OK

Q:About the market issues of thermal insulation material and refractory material.: In fact, the thermal insulation material produced by the Sichuan-Benniao Hing construction company is very good, you can get the company's information just by inputing the Sichuan-Benniao Hing construction company into Baidu

Q:I wanna ask that magnesium oxide is refractory?: Magnesium oxide is used in refractory material, because it has the following characteristics and properties: 1, high stability: Anti-oxidation, anti-reduction, thermal decomposition; 2, high melting point, 2800 degrees; 3, low prices. In particular, the stability and melting point is very good, I hope I can give you help.

Q:How long is the duration of fire resistance of hollow glass magnesium board: Glass magnesium board is non-combustible board with excellent fire resistance ability, the continuous burning time of flame is 0, non-combustible at 800℃, no flame at 1200℃, achieving the highest level of fire retardant level A1; Partition System cooperated with high-quality keel can endure fire for more than 3 hours. In the process of combustion, a large amount of heat energy can be absorbed, and the temperature of the surrounding environment will be delayed.

Q:How to distinguish the fire resistant level of construction materials?: There are 3 conditions for building components to reach fire endurance, namely: Loss of ability to support; loss of integrity; loss of fire insulation function. As long as one condition occurs, fire endurance is reached and the time before it is called fire endurance. 1), loss of ability to support: If the specimen bearing capacity and rigidity reduce, section area shrink, collapses or deformation exceeds specified numerical value because it cannot bear the load of original design under flame or high temperature, it loses the ability to support. 2), loss of integrity: It mainly refers to the thin wall separating component(such as stairs, windows,partitions, ceiling, etc.) burst or partially collapse under flame or high temperature, and penetrating?fracture or opening appears, and the reverse side even burn. For example, when the floor is under flame or at high temperature, the flame spread to the upper room, which indicates that the integrity has been damaged. 3), loss of fire insulation function: It mainly refers to that seperating components loses thermal insulation and excessive heat conduction. In experiment, if the average temperature of component unexposed surface exceeds 140 ℃, or if any spot at the unexposed surface exceed the initial temperature of 180 ℃, the component loses fire insulation function.

Q:How long is the duration of fire resistance that fireproof window of level B can endure?: Fire proof window of level B is the fire proof window whose duration of fire resistance is not less than 1 hour.　 Technical requirements: One, Materials and fittings (1) the frame of windows draw on steel or wood frames which have certain intensity and are able to ensure the integrity and stability of components. 　(2) Steel frame and layering can use galvanized steel or stainless steel plate. Its selection criteria shall be in line with provisions 5.1 of GB12955< steel fire door general technical conditions >. (4) The internal fillings of steel, wood frames should use non combustible materials. (5) Fire proof windows can opt for qualified products without affecting the performance of fire proof window. Light transmittance of glass shall not be less than 75% of the same layer of ordinary flat glass. 　(6)The sealing material between the frame and the fireproof glass should adopt the nonflammable materials, functioning as the fire blocker. (7)Hardware fittings should be tested for qualified products.

Q:whether the fire resistant level of aerated concrete building blocks can reach the grade one?: it has fire resistant level, incombustible?material,and it should reach grade one level.

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