Calcined Bauxite Raw Materials for Refractory Industry
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 10000 m.t./month
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Calcined bauxite
High alumina bauxite or fine dust are made of high quality aluminum bauxite after firing in high temperature.Using aluminate cement as bonding agent , High alumina bauxite or fine dust can made kinds of shaped or unshaped refractory material.
Application:
Metallurgy
Petrochemical industry
Hydroelectric
Mechanical,
Precision casting.
Buliding industrial department
Calcined bauxite data sheet:
Al2O3% | SiO2% | FeO2% | CaO+MgO% | K2O+NaO% | Density% | TiO2% |
80 | 6-14 min | 2-3max | 0.4max | 0.05-1max | 2.9-3.2 | 3.5max |
85 | 6-14min | 2-3max | 0.4max | 0.05-1max | 2.9-3.2 | 3.5max |
87 | 6-14min | 2-3max | 0.4max | 0.05-1max | 2.9-3.2 | 3.5max |
88 | 6-14min | 2-3max | 0.4max | 0.05-1max | 2.9-3.2 | 3.5max |
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2. Manufacturer with large capacity, ensure the fast production cycle after confirmed the order.
- Q: Which industry does the metallurgy and thermal insulating and refractory material belong to?
- According to "New Economic Industrial Classification", the metallurgy and the thermal insulation refractory matter belong to C category. The manufacturing industry has 30 categories. The non-metallic mineral products industry has 303 classes. The production of building materials of tiles, stones, ect. refers to clay, ceramic tile production, building stone processing, building materials produced by wastes or drogs and subcategories 3035 produced by other building materials. The manufacture of thermal and acoustic insulation materials refers to the manufactuer of mineral insulation materials and other products, like rock wool, mineral?cotton, expanded perlite and expanded vermiculite used for thermal insulation and sound insulation, but it does not include the production of 3039 subcategories, like asbestos thermal insulation and sound insulation materials, and other construction materials.
- Q: How to determine the fire resistance rating of the aluminium-plastic?panel?
- The fire resistance rating of the aluminium-plastic?panel is determined by two indicators, namely national compulsory standard of GB8624 "Building Materials Combustion Performance Grading Method ", and GB/T17748 "Aluminium-plastic?Composite Panel National Standard" . Classifications of combustion performance of building materials in our country are as follows: A class: Incombustible building materials; B1 class: Flame-retardant building materials; B2 class: combustible building material; B3 class: flammable building materials. The fire resistance rating of the aluminium-plastic composite panel shuld be no less than B1 class. 1. Detection indexes and requirements of fireproof aluminum-plastic composite panel (B1 class): (1) Conduct the test according to GB/T8625-88, the average leftover length of each test specimen should be more than 150mm, (any test piece should have leftover length), and the maximum average flue gas temperature of each test should be no more than 200 ℃; (2) Conduct the test according to GB/T8626-88, flame hight indicators.
- Q: How is the fire endurance of the fireproof paint?
- second level firerpoof of cooling rack. with a fire endurance from 1 to 1.5 hours. According to the code for fire protection design of buildings. 1. fireproof grading of first level is 1.5 hours 2, fireproof grading of second level is 1.0hour.
- Q: Can polystyrene foam color steel plate be used as decorative fireproofing material ?
- No, only non-combustible product can prevent fire. Most polystyrene foam boards are flammable which cannot prevent fire. Polyphenyl can only retard flame, highest fire?retardant fire?rating being B1 level. Under the same conditions, fireproof performance of polystyrene foam board will be better because most extruded sheets are made by recycling materials and contain much more impurities which will affect flame resisting property. The second reason is that high temperature in extruded sheet manufacturing technique will decompose part of flame retardants. For B1 level extruded sheet, it is difficult to reach 30 burning oxygen index, while for B2 level, it is hard to reach 32. So polyphenyl board is safer.
- Q: what is the Specifications Grading for Fireproof rubber insulation materials ?
- External insulation materials, welded wire mesh matt external wall insulation, external wall thermal insulation mesh matt. 1,inorganic activel thermal insulation materials 2,silicate?thermal?insulation?material 3,ceramic thermal insulation 4, gelatine powder polyphenyl granule, 5,teel wire gauze picking cement cystosepiment（Estazolam platepowder particles)6 extruded sheetXPX. 7,Rigid polyurethane coating at the scene, Polyurethane insulation board8,rigid polyurethane foam,9EPS foam board roofing materials. 1, a ceramic insulation board 2, xps extrusion board 3, perlite and perlite brick 4, vermiculite and vermiculite brick heating, air conditioning Material: Phenolic resins, polyurethane waterproof thermal insulation integration, sponge rubber, polyethylene, polystyrene foam, glass wool, rock wool Steel material: Polystyrene, extruded sheet, polyurethane panels, glass wool carpets and the like. Five inorganic thermal insulation materials: Foam cement, DY inorganic active insulation system super thin vacuum insulated panel for building external walls .
- Q: What are the new types of refractories? What are the characteristics? Their applications and developments?
- A new type of refractory materials are: A12O3-TiO2-SiO2 refractories, MgO-A12O3-TiO2 refractories, MgO-CaO-TiO2 refractories, MgO-SiC-C refractories, nanotechnology MgO-C brick, MgO-AL2O3-AIN refractories, MgO-La2O3 refractories etc..
- Q: Who can tell somthing about how to choose fire resistant rating of fire resistance rolling shutter doors?
- According to the fire endurance, fireproof doors can be divided into A-grade, B-grade and C-grade, whose fire endurance should not be less 1.2h, 0.9h and 0.6h respectively. A-grade fireproof doors can be even applied to the material whose fire resistant rating is at secondary level. "Building Regulations" mention that fire resisting shutter can be used as partition of fire?compartment in those places where setting firewalls is not so easy. When using fire resisting shutter whose fire endurance includes unexposed surface temperature rise, its fire endurance should not be less than 3 hours. When using fire resisting shutter whose fire endurance doesn't include unexposed surface temperature rise, it should install closed independent automatic sprinkler system for protection on both sides, and the sprinkler sholud last at least 3 hours.
- Q: For refractory, why is it necessary to store the first mixing materials for some time under proper moisture and temperature?
- It is mainly to remove gas form chemical reactions in the pug, give full play to plasticity and binding properties of combined, and store unburned?brick whose cememting agent is phosphoric?acid or aluminium?phosphate for some time under proper moisture and temperature. For example, to avoid the formed bricks in the initial stage of drying and firing form cracking due to hydration of calcium oxide. Mixing materials is to store the first mixing materials for some time under proper moisture and temperature in order to improve the evenness and moldability of pud, such as making the distribution of combined clay and water more even. The length of storing chiefly depends on the process requirements and the characteristics of blanks. For the producing pug of high temperature kiln furnitures, the storing time is longer. The function of storing mxing materials varies with different natures of blanks. For honeycomb ceramics, it is to fully digest calcium oxide in blanks. For storing magnesia brick blanks containing much calcium oxide, it should be stored for some time in proper humidity and temperature.
- Q: What kinds of fireproof materials does the safe use?
- Copper is one of the most widely used material in safe, for its good mechanical performance, corrosion resistance and processibility and it has beautiful color. Especially handles, locks and other decorations forged of copper are smooth, pore-free, also they have good density, and no blisters. They are solid and rust-proof, which can get gilded with 24K gold or gulch-gold and have other surface treatments. A lot of colors have been added to people's home for the copper's magnificence and nobleness.
- Q: What is the the best ratio of mortar in refractory cement?
- Specifical proportions are as following: 42.5R cement is 425 rapid hardening cement. Using the 425 cement to compound the mortar. The reducion of cement will naturally impact the workability of the mortar. The mix design standard of the mortar specifies the minimum amount of cement is not less than 200kg / m3. If it is composite mortar, and the strength and workability can be ensured, it is Ok to use 425 to compound. You can look for instructions of mixing proportion of mortar online as a reference.
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Calcined Bauxite Raw Materials for Refractory Industry
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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