$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 1$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 2$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 3$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 4$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 5$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 6$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 1$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 2$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 3$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 4$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 5$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 6$

Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 11 m.t.

Supply Capability:: 10000000 m.t./month

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1.Structure of Calcined Bauxite Description

Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.

2.Main Features of the Calcined Bauxite

Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum

hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .This removes moisture there. By increasing the alumina content,compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 84%to88%.The heating is carried out in rotary kilns.

3.Main usage of the Calcined Bauxite

(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc.
(2) precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
(3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780, chemical stability strong, and good physical properties.

4. Calcined Bauxite Images

$High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China$

5. Calcined Bauxite Specification

BRAND INDEX	High Alumina Brick for BF			Fire Clay Brick for BF
BRAND INDEX	GL-65	GL-55	GL-48	ZGN-42	GN-42
Al₂O₃, % ≥	65	55	48	42	42
Fe₂O₃, %, ≤	2.0	2.0	2.0	1.6	1.7
AP % ≤	19	19	18	15	16
Refractoriness °C ≥	1790	1770	1750	1750	1750
PLC %	0~-0.2	0~-0.2	0~-0.2	0~-0.2	0~-0.3
PLC %	1500°C x 2h		1450°C x 2h
CCS MPa ≥	58.8	58.8	49	58.8	49
0.2MPa RUL °C ≥	1500	1480	1450	1450	1430

6.FAQ of Calcined Bauxite

1). Q: Are you a factory or trading company?

A: We are a factory.

2). Q: Where is your factory located? How can I visit there?

A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!

3). Q: How can I get some samples?

A: Please connect me for samples

4). Q: Can the price be cheaper?

A: Of course, you will be offered a good discount for big amount.

Q: Who knows the refractoriness of high temperature lightweight firebricks?: Hefei Jiu oak decor help you answer; the biggest feature is refractory: refractoriness 700.

Q: How can refractory material of the electric furnace be used for longer.: Minimize mechanical shock, Electrical furnace commonly referred to must be electrical arc furance. The wall of electric arc furnace should be constrcuted with magnesite carbon brick. Its hearth permanent layer should be constrcuted with mansornary magnesia brick. High alumina brick is usually used to aviod furnace cover suddenly get hot and cold. But its service life is lower. At present integral casting furnace cover is made of alumina magnesia. Terminal will be created even without the use of refractory material. Consumption is much faster if using refractories material or whole knottiing mainly.

Q: I wanna ask about the building insulation materials fire rating?: Hello, I am happy to answer your questions about the classification of building insulation materials fire rating: 1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3 combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. I hope I can help you

Q: Which refractory quality inspection authority is good?: Download refractory quality inspection LIRR in Henan is nationally recognized. Of course, it is an authority, but the cost is very high.

Q: How is refractory material made?: It is made from polyester.

Q: whether the aluminum silicate thermal insulation material is fireproof or not?: Yes, it is fireproof. Refractory thermal insulation material mainly refers to the inorganic thermal insulation materials and composite thermal insulation materials. According to the shape it can be divided into: Fibrous finishing, mineral?cotton, rock wool, glass wool, aluminum?silicate?wool, ceramic fiber,ect.. it takes the flint clay clinker as raw material, produced by the fusion of resistance or electric arc furnace and the injection of fiber forming. characteristic: Low thermal conductivity, excellent thermal and chemical stability, without binder and corrosive material.

Q: What is the type of heat resistance property of high temperature electric furnace ?: According to the levels of refractoriness : Common refractories: & Gt: 1580 ℃ ~ 1770 ℃ advanced refractories: 1770 ℃ ~ 2000 ℃ AAA refractories; 2000 ℃

Q: What kinds of fireproof materials does the safe use?: The fireproof materials of the safe, cement foam. It is often said recently that the safes with cement inside are bad. Actually, it is not like this. Chemical means are taken to make the cement inside safes rise like a leaven dough so as to achieve good insulation. The principle is the cement foam. Fireproof safes with such techniques have good performance in terms of fireproofing and anti-theft. The manufacturing processes of this fireproof safe are highly technical, some safes with poor techniques have problems in quality. Here are some data of the foam cement.

Q: What is fire retardant coating mainly used for?: The functions of refractory coating are as follows: 1. Non-intumescent fire retardant coating is mainly used for the fireproofing of wood, fiber board and other materials, and it is used in the surfaces of wood truss, roof, doors, windows and etc. Second, the intumescent fire retardant coating can be divided into non-toxic intumescent fire retardant coating, expansible fire retardant coating emulsions, solvent-based fire retardant coating. 3. Non-toxic intumescent fire retardant coating can be used to protect cables, polyethylene pipes and insulation board. 4, The expansible fire retardant coating emulsion and solvent-based fire retardant coating can be used for fireproofing of buildings, electricity power, and cables. 5. New fire retardant coating: Transparent fire retardant coating, water-soluble intumescent fire retardant coating, fireproof emulsion paint, polyvinyl acetate emulsion fire retardant paint, water-soluble intumescent fire retardant paint drying at room temperature, fire insulation coating polyolefin fire retardant coating, modified high chloropolyethylene fire retardant paint, chlorinated rubber fire retardant coating, firewall coating, intumescent coatings, wire and cable fire retardant paint, new fire retardant coating, casting fire retardant coating and so on.

Q: How to divide fire resistant level of fire door?: The classification of fire resistant level of fire door: Grade A is not less than 1.2h. Grade B is not less than 0.9h. Grade C is not less than 0.6h. It is suitable for fire door with different levels: Grade A: Equipment room (such as fire-pump room,power distribution room, generator room, smoke control fan room, etc) door, fire?compartment, door on firewall; Grade B: Eclosed staircase, front door of stair room, smoke-proof?staircase and fire elevator share lobby door, front door of fire elevator, household door which directly opens to front room or shares room; Grade C: The vertical shaft door, such as strong electric wells, weak electric wells, pipe shaft door and air conditioning facilities. I hope this information can help you.

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