$85% Min China Calcined Bauxite - Raw Materials for Refractory System 1$
$85% Min China Calcined Bauxite - Raw Materials for Refractory System 2$

$85% Min China Calcined Bauxite - Raw Materials for Refractory$

$85% Min China Calcined Bauxite - Raw Materials for Refractory System 1$

$85% Min China Calcined Bauxite - Raw Materials for Refractory System 2$

85% Min China Calcined Bauxite - Raw Materials for Refractory

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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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Company Profile

CNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council.

Since 2004, the trading volume of CNBM International has been doubled in 5 successive years owing to the support of superior corporations and effort of all staff. Meanwhile, we have established strategic partnerships with hundreds of domestic manufacturers and sound business relations with clients from over 120 countries. Currently, we have wholly-owned overseas subsidiaries and branches in 5 countries with a view to realize localization, which also represents an essential progress in our globalization target.

AL2O3 85%min China Calcined Bauxite Manufacture

1. Calcined bauxite
AL2O3:70% min.
FE2O3:2% max.
SIZE: 1-5MM 90% min.

china calcined bauxite manufacturer since 1999
purity of al2o3 75%-90%
rotary kiln calcined bauxite
self-owned bauxite mines

Specifications of Calcined bauxite

Grade	AL2O3	SIO2	FE2O3	TIO2	K2O+Na2O	CaO+MgO	Bulk density
HX75	75min	≤17	≤3.0	≤4.0	≤0.3	≤0.5	≥2.70
HX80	80min	≤12	≤3.0	≤4.0	≤0.3	≤0.5	≥2.80
HX85	85min	≤8	≤2	≤4.0	≤0.3	≤0.5	≥3.00
HX86	86min	≤7	≤2	≤4.0	≤0.3	≤0.5	≥3.10
HX87	87min	≤6	≤2	≤4.0	≤0.3	≤0.5	≥3.20
HX88	88min	≤5	≤1.8	≤4.0	≤0.25	≤0.5	≥3.25
HX90	90min	≤3	≤1.8	≤4.0	≤0.25	≤0.5	≥3.3
Moisture(max)					0.50%

Size of Calcined bauxite

Section sand:0-0.3mm,0-0.5mm,0-1mm,1-3mm,3-5mm,5-8mm.

Fine powder:100#-0,200#-0,325#-0

Moh’s hardness: 7-8

Melting point:1770-2000 C

Usage of Calcined bauxite
1.Aluminium industry.

2.Precision casting.

3.Refractory industry.

4.Silicic acid aluminium firefibre

5.Mixed with magnesium oxide,it can be an nice bonding agent,especially for pouring entire steel teeming ladle lining

6.Manufacture bauxite cement,grinding abrasives.ceracmic industry,and chemical industry for making aluminium compounds

AL2O3 85%min China Calcined Bauxite Manufacture

Q: What are the specifications of fire resistant bag?: Mesh number, namely hole number, refers to the hold number in each square inch. 5o mesh refers to 50 holes in each square inch and 500 mesh 500 holes. The larger the mesh number is, the more the holes are. The larger the mesh number is, the smaller the hole aperture is. Generally speaking, mesh number× aperture (microns) = 15000. For example, the aperture of a sieve of 400 mesh is about 38 microns; the aperture of a sieve of 500 mesh is about 30 microns.

Q: What refractories are resistant to fluorine gas?: It is recommended to use fused-quartz brick, which will produce hydrofluoric acid fluorine (an acidic gas) when water vapors. It is cheap. While it is recommended to use silica?brick if it exceeds 1,200 degrees. So acidic refractory is an advisable refractory for using. It works well if the temperature is below 1200 degrees.

Q: What is fireproofing material? Are fireproof materials the same thing with thermal insulation materials and refractories?: The refractory material is capable of withstanding high temperature burning, while fireproofing material is to prevent burning. They are different from each other

Q: How to choose refractory material: The crystalline refractory fiber mainly consists of polycrystalline mullite fiber, the optimum use temperature is 1300 DEG C, and the long-term use temperature of polycrystalline alumina fiber is 1400 DEG C. The service temperature of ordinary refractory fiber is 1150 degrees, and the use temperature of advanced refractory fibers (such as alumina, zirconia, refractory fiber) can reach 1700 degrees centigrade

Q: Who knows about the differences between 3M fireproofing materials and ShiLiDe materials?: ShiLiDe materials are relatively poor, and have nothing to do with 3M at all. 3M is a brand! 3M company is famous for innovation around the world. It has developed a variety of products in a hundred years, involving in automotive, chemicals, telecommunications, construction and other fields. 3M automotive aftermarket has more than 3,000 products (more than 20% of which are high-tech patented products). The world's first explosionproof and heat insulating film, and the first waterproof abrasive paper were born in 3M Company. The abraser, polishing materials, mirror finish of paintwork, the internal and external auto beauty of 3M Company rank the first place in the world. 3M films are divided into conventional films and crystalline auto films. The conventional films of 3M generally have five-layer structure, the base of films is a polyester film which is s plastic film of tearing and puncture resistance. The film is coated with thermal insulation layer, ultraviolet isolation?layer, adhesive layer, wear-resistant layer, and protective layer which finally becomes thermal insulation and explosion-proof film with metal sputtering method. Optical micro-attach technology is used in the polyester?film which is the base of 3M crystalline auto film. It is coated with more than 240 layers of optical coatings in order to achieve better thermal insulation performance, and be the top anti-explosion and heat-insulating film with clear sight. I hope my answer can help you. Thank you.

Q: I would like to ask a friend that how much is the fire endurance of level A fireproofing glass?: the fire endurance of fire window is: class A window is not less than 1.2 hours, class B window is not less than 0.9 hours, Class C window is not less than 0.6 hour. technical requirements: 1, materials and accessories (1) the window frame is made by a certain strength of steel frame or wooden frame which is sufficient to safeguard the integrity and stability. (2) steel frame and mound layer can select galvanized?steel?sheet or stainless steel plate. Its selection standards should be in line with the provisions of Article 5.1. in GB12955 "Steel Fireproof Door General Technical Condition" (3) the selection standards of wood frame and mound layer should be consistent with the provisions of Article 5.1.1. in GB14101 "General Technical Conditions of Wooden Fireproof Door" (4 ) the inner filling material of steel and wood frame should be non-combustible material. (5) fireproofing glass can choose the qualified products in fire resistance test and not affecting the fire windows. light transmittance of glass is not less than 75% of identical layers of ordinary plate glass. ( 6) a sealing material between the frame and the fireproofing glass should use the nonflammable material, it can play the role of fireproofing and smoke insulation in the fire disaster. I hope I can help you

Q: What is the interior fireproof thermal insulation material?: polystyrene foam board, glass fiber spraying, polyurethane foam, thermal insulation system of inorganic wall. Use "DY" inorganic active thermal insulation material, have small thermal conductivity, large heat storage coefficient, better strength and achieve better thermal insulation and energy-saving effect when used in wall . Wall should definitely not crack and hollow because of high temperature in summer. It doesn't crack and shed because it is influenced by stress during heat expansion and cold contraction in cold winter.

Q: What are the components of refractory clay?: The component of refractory mortar comprises refractory powder, binders and admixtures. Almost all the refractory materials can be used as the powder to formulate refractory mortar. Ordinary refractory mortar is made from refractory chamotte powder, an appropriate amount of plastic clay as binding agent and plasticizer. It has low strength under normal temperature, but the ceramic formed under high temperature has a high strength. Refractory mortar which is formed with bonding material of hydraulicity, gas or thermal hardness is called chemical binding chamotte refractory mortar. It is hradened through chemical reaction before below the temperature of ceramic bonding formation.

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.. Hope you adopt.

Q: How to classify fire resistance rating of brick-concrete structure?: In order to ensure the safety of the building, the fire protection measures must be taken to make it have a certain degree of fire resistance, even if there is a fire, it will not cause too much damage. According to the national conditions of our country, and in the light of other countries standards, < high-rise civil building fire protection design specification > defines fireproof rank of high-rise civil buildings into level one and two; < code for fire protection design of buildings > divides the rank into level one, two, three, four, level one is the highest level, level four is the lowest. Besides that the minimum fire resistance of the building component is specified, buildings of fire resistance rating also specified requirements for combustion performance. Because the component with the same fire resistance limit is different, it is different in the fire.According to our country national standard < building design fire protection code >, the fire resistance rating of the building is divided into four levels. The fire resistance of a building is determined by the combustion performance and fire resistance of building components (such as beams, columns, floors, walls, etc.). Generally speaking, the fire resistance building of level one is a mixed structure of reinforced concrete structure or a mixture of brick wall and steel concrete structure; the fire resistance building of level two is a mixed structure of steel truss structure, reinforced concrete column and brick wall; the fire resistance building of level three is brick-wood structure made of wood roof and brick wall; the fire resistance building of level four is combustible structure which is composed of wood roof and non-combustible wall.

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