• Raw Materials for Refractory:Factory Direct Supply Rotary Calcined Bauxite System 1
  • Raw Materials for Refractory:Factory Direct Supply Rotary Calcined Bauxite System 2
Raw Materials for Refractory:Factory Direct Supply Rotary Calcined Bauxite

Raw Materials for Refractory:Factory Direct Supply Rotary Calcined Bauxite

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Quick Details

Place of Origin:

China (Mainland)

Shape:

Brick

Material:

Alumina Block

SiO2 Content (%):

≤0.2

Al2O3 Content (%):

≥99

Refractoriness (Degree):

1770°< Refractoriness< 2000°

Model Number:

TY-AKZ-99

Brand Name:

CN

Size:

Any size

Factory Direct Supply Rotary Calcined Bauxite

Packaging & Delivery

Packaging Details:Wooden pallet and then polyethylene film is placed over it, finally the package is tied up with strips
Delivery Detail:2 months

Specifications

Applications: 
1.Lining of high temperature furnace 
2.Thermal insulate of ultra-high temperature furnace

Physical and chemical index

Item

AKZ-85

AKZ-90

AKZ-99

Chemical composition

Al2O3

≥85

≥90

≥99

SiO2

≤13

≤8

≤0.2

Fe2O3

≤0.5

≤0.5

≤0.5

Apparent Porosity%

58-62

58-62

58-62

Bulk Density g/cm3

1.4-1.7

1.4-1.7

1.4-1.7

Cold Crushing Strength Mpa

≥12

≥10

≥9

0.1Mpa Refractoriness Under Load T0.6 °C

≥1650

≥1700

≥1700

Permanent Linear Change On Reheating

(%)1500°CX2h

±0.3

±0.3

±0.3

20-1300°C Thermal Expansion % (x 10-6)

0-7.8

0-8.0

0-8.6

Thermal Conductivity(Average 800°C) W/(M.K)

≤0.8

≤1.3

≤1.5

Max Service Temperature °C

1680

1700

1800

Factory Direct Supply Rotary Calcined Bauxite


Q:Who can introduce the external wall thermal insulation materials fire rating regulations?
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. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials. I feel the best insulation materials should be modified phenolic board, which can keep insulation and fireproofing, but the unit price is very expensive. Insulation materials in the domestic market have some disadvantages, it is better to considere the materials within the acceptable range in the building needs.
Q:What kind of refractory materials are used in metallurgy industry?
Argon-blowing rod, siliceous dry vibrating materials, desulfurizer, slag-stopping ball, stainless steel thermal insulating agent with high efficiency, dry vibration material, sizing nozzle heat-insulating panel, chrome refractory , refractory carstables for ladles, magnesia carbon refractory, package castable, siliceous drainage agent, tundish block, iron trough, deoxidizer, compound deoxidizer,silicon manganese alloy , stemming, floating plug,slagging agent. The main materials are as follows: recarburizer, covering agent, intermediate frequency furnace burden, mould fluxes, insulation thin slag agent, skimmer repair material, joint sealant.
Q:Who can introduce the difference between galvanized fireproof?coatings and steel structure fireproof materials?
When the steel surface derusted, it generally needs to brush rich-zinc primer before spraying fireproof coating. Fireproof coating plan itself includes anticorrosion plan, and fireproof coating is just a layer of coating plans, which is an intermediate layer in general. Fireproof coating plan generally includes primer, fireproof coating and finishing paint. Some fireproof coatings can be directly painted on the bare steel elements without primer and finishing paint. Galvanized surface generally is not necessarily needed for brushing fireproof coating. Fireproof and galvanized surface have relatively poor bond strength, so it is advisable to brush transitional lacquer or micaceous iron on the galvanized surface.
Q:What are the additives and recipes of refractory?
SM water reducing agent
Q:What are fire?ratings of wall thermal insulation material?
External wall thermal insulation materials are divided into A and B according to combustion level. Grade A is incombustible?material, while grade B is combustible?material. A few years ago, fires in CCTV building and Shenyang hotel resulted from grade B material. Currently grade A is usually used, and some are even cheaper than the grade B material. Grade A is roughly divided into insulation mortar, phenolic board, rock wool board, foam cement board, etc. Insulation mortar is quite good. It is easy and convenient to construct, has low cost, but the production is too simple and it is easy to fake. It is recommend to find a large manufacturer with complete formalities, such as provincal records of production, provincal records of use, city records, type test report at or above the provincial level, national fireproof report and design drawing collection of department of construction. Lack of any is unsafe. It is recommended to use mortar from Hebei Qizheng Haocheng New Building Material Co., Ltd. It is absolutely large manufacturer. MPC thermal?mortar produced by it is recommend product of Department of Construction in Hebei Province! Generally speaking, the combustion of phenolic aldehyde is grade B, but it can barely reach A2 when a thin layer of mortar is wiped outside.
Q:How many kinds of A-level fireproof and thermal insulation materials are there?
A-level non-combustible materials are mostly inorganic thermal insulation materials, as well as some organic compound materials can also be non-combustible; but if the convenient construction is required, panels are exempted, you can only choose inorganic thermal insulation mortar.
Q:What is the interior fireproof thermal insulation material?
The methods of thermal insulation wall have three kinds of materials. First: gypsum board or cement board are stuck outside the polyphenyl board; second: lightweight brick build; third: infill polyphenyl board, lightweight brick is built outside. The first two has almost the same price. The latter is slightly expensive. 60 yuan / square meter is not very expensive!
Q:Who knows what kind of fire protection material is better?
Characteristic of polyurethane rigid foam thermal insulation decorative composite board: (1) ultra high cost performance, increased property's selling point (high cost performance) new model of thermal insulation material, excellent thermal insulation properties, elegant decorative effect, 50 years of service life, reduce maintenance costs and social waste. (2) it overcomes defects of traditional insulation technology (to solve the freezing and thawing, veneer cracking and shedding) traditional benzene board, the phenomenon of freezing and thawing that is easily appear in plastic extruded sheet, paint finish is easy to crack; its veneer facing can easily fall off; thermal insulation materials and wall are poorly adhered, easy off the whole. There is a themal bridge in dry hanging wall. (the characteristics of polyurethane composite board)
Q:What are included in fireproofing materials?
There are many types of fireproof materials, and the following listed below is the main species: All kinds of fire retardant coating such as finishing fire retardant paint, fire retardant coating components, fire-resistant coating for steel structure; all kinds of fire-proof materials such as fire?retardant material and its products, textile, fire?retardant fabric, building materials and products, flooring material and external wall thermal insulation system; all kinds of fireproofing components such as fireproof?panel, fire door, fire resistant window frame, fire resisting shutter, fireproofing glass, elevator landing door,ventilating duct, fire-proof?sealing?material and fire protection smoke exhaust fan. The main indicators to judge fire resistance are: Flame retardency, ignition,production of?toxic?gases, smoke density,heat release and exhaust gas; fire resistance, combustion performance, heat of combustion, fire-resistant performance, high temperature resistance, fire?rating, etc. There are some specific parameters which need to be judged by a professional testing equipment. You can go to the inorganic laboratory to check. The test results of fire rating are accurate.

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