Al2O3 85%Min China Calcined Bauxite Raw Materials for Refractory
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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
We can supply series of bauxite, also we can supply goods according to customer's respective requirements !
- Q:What are fireproofing materials?
- 1. Fire-resistant coatings like finishing fire retardant paint, fire retardant coating member and fire-resistant coating for steel structure; 2. Fireproofing materials of flame-retardant plastics and plastic products, textiles, flame retardant fabrics, building materials and products, flooring materials, and wall insulation system; 3. Fireproof element of fireproof panels, fire doors, fire resistant window frames, fire resistant shutter, fire-resistant glass, elevator landing doors, ventilation ducts, fire-proof?sealing?materials, and fire protection smoke exhaust fans.
- Q:What are some of the new refractories and what are their characteristics?
- Refractory common AZS refractories are often used brick, corundum brick, magnesia chrome brick, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, aluminum oxide, beryllium oxide and other refractory materials, Magnesium Oxide
- Q:What 's the highest temperature can magnesium plate glass resist ?
- Glass magnesium plate (commonly known as magnesium oxide or glass magnesium plate) is a magnesium jointing material with stable performance made by adding modifier and processing ternary system composed of magnesium oxide, magnesium chloride. It is a new non-combustible decorative materials comprounded by moderately alkaline fiberglass net as enhanced material and lightweight material as filler. 1, Applications Wall panels, ceiling panels, fire-resistance boards, water-proof boards, boxes, etc.. It can replace wooden plywood panel and be made into dado, door panels, furniture, etc., or into distemper paint water paint to one's need, and can akso be processed into various types of plate surface. It is also applicable to projects undertaken in damp environment such as basement, civil air defense, mines. It can be comprounded with a variety of thermal insulation materials into compround thermal insulation materials 2, Product features: Magnesium plate glass is high temperature resistant, sound absorbing, and capable of preventing water, pests, dampness, corrosion, poison, pollution. Paint can directly be applied to the surface of the plate. Air nails are usable for the plate, to which ceramic tile can also be applied with good pigmentation High strength, flexibility when bending, convenient for decoration. It can be sawed, nailed, and glued. 3, the use of glass magnesium plate: Glass magnesium board is a basic intermediate materials Main occasions for applications: HPL Series: Top of the tunnel ceiling. Decorative plate series: Decoration in hotels, office buildings, residential buildings Board series: Ceiling, partitions, fire proof doors and other products. Sound-absorbing panels: Subway, railway stations, theaters, factories and other public buildings.
- Q:Who knows the fire endurance of B-level fireproof doors and windows?
- 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. Fire endurance of fireproof windows: A-grade fireproof windows are not less than 1.5h and B-grade fireproof windows are not less than 1h. The door leaves of A-grade and B-grade fireproof windows should be steel materials, and their glass should be composite fireproof glass whose thickness is no less than 26mm. Monolithic fireproof glass window is not B-grade fireproof window, nor A-grade fireproof glass window. It si called non-insulated fireproof window.
- Q:How is the fire endurance of the fireproof paint?
- time is different according to the amount of fireproof paint used. fire resistance time :0.5 hours 1.5 hours 2.0 hours 2.5 hours thickness: 0.45mm 0.9 mm 1.4 mm 2.0 mm 2.8 mm Amount: 0.79kg / m2 1.5 kg / m2 2.3 kg / m2 3.3 kg / m2 4.6 kg / m2
- Q:What is acid refractory material?
- In fact, with the content of zirconia refractory multiple theory should also be acid refractory
- Q:Graphite and other carbon materials may be oxidized to CO or CO2 at high temperatures. But why can they be refractories?
- There is no contradiction for this. Any substance can be combustible, but different materials have different ignition points.There are many types of graphite. Pyrolytic graphite has a much lower ignition point. Therefore, as long as it reaches at a certain temperature, it can convert into graphite. Mostly, in practical applications (such as brake pads will add a certain amount of graphite), graphite is required to have refractoriness of below 1000 ℃. Graphite can serves as both the combustible and refractory material. So, it can be used as a fire-resistant and high-temperature-resisrant material because graphite (lamellar graphite) has a ignition point of at least 3000 degrees in an oxygen free condition. The above information is for reference only and is offered by Xin Ruida Graphite Company.
- Q:How long does it take for refractory cement to solidify?
- 1. First you should be aware of the concepts of condensation and condesation time. Refractory cement belongs unshaped refractories, which when added water or liquid binding agent to mix, the agitation material will gradually lose thixotropy or plasticity and become in a state of solidification, thus is solidified. The time needed to finish the process is called solidification time. The whole process is divided into initial and final set. When beginning to lose plasticity called the initial setting, when called plasticity completely lost the final setting. 2. For refractory cement, the solidification time depends on the matching of the material and the parts and using methods. Under normal circumstances, in order to meet the requirements of time of construction, the initial set time should be no shorter than 40min, and the final set time should be no longer than 8H 3. There are also some exceptions. When refractory cement is used for spraying and injection operation together with other refractory castable, the set time is required as short as possible, sometimes flash set is required to prevent the occurrence of peeling or collapse of the spraying layer.
- Q:How is the development of Xinmi refractories industry? What's its advantages and disadvantages?
- The advantages are largest scale, top production amout in the country, accounting for one-third of the national market, having technology, strength and the market. The disadvantages are the lack of mineral resources, serious environmental pollution,
- Q:Do you know what the main indicators are for the inspection of refractory materials? Thank you very much for your requests and reports
- Fire resistance, combustion performance, combustion heat value, fire resistance, high temperature resistance, fire rating test and so on. Regular testing institutions are generally reported, Qingdao standard also can, the results are more accurate.
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Al2O3 85%Min China Calcined Bauxite Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 30000 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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