Mullite Sand For Investment Casting Grains and Powder
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 300 m.t./month
- OKorder Service Pledge
- Quality Product
- Order Online Tracking
- Timely Delivery
- OKorder Financial Service
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- Credit Services
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Product Description
Quick Details
Place of Origin:China
Mullite
SiO2 Content (%):
51%~53%
Al2O3 Content (%):
45%~46%
MgO Content (%):
≤0.6%
CaO Content (%):
≤0.6%
Product name: Mullite
Payments terms: 1. 100% L/C at sight 2. 30% T/T prepayment, balance against BL copy
Delivery Time: Within 30 days after receiving L/C or 30% T/T prepayment
Advantage: Timely Shipment, High quality, Good performance
Packing: 1mt/bag or as customers' requirements
Size: powder
Sample supply: free sample
Color: yellow
MOQ: 25Mt
Supply Ability
Supply Ability:300 Metric Ton/Metric Tons per Month
Packaging & Delivery
Packaging Details1MT/bag or as customers' requirements.
Features:
Mullite sand powder of aluminium silicate refractory material, generally used in stainless steel precision casting technology, refractory degrees 1750 degrees, mullite sand content of aluminum in more than 45%, iron content is below 1.2%, dust below 0.01%, indicating that the quality of mullite sand is the best. Casting the casting easy shelling, deformation, not easy to scale, good smoothness, high rate of finished products.
Item | Specification | Supper Grade |
1 | Al2O3 % | 45-46 |
2 | SiO2% | 51-53 |
3 | Fe2O3%≤ | 1.2 |
4 | K2O+Na2O%≤ | 0.2 |
5 | CaO+MgO2%≤ | 0.6 |
6 | TiO2%≤ | 0.08 |
7 | Density g/cm2)≥ | 2.6 |
8 | Flameresistant ℃≥ | 1750 |
9 | LOI %≤ | 0.3
|
10 | Size(mesh) | 16-30 |
11 | Dust-containing ‰≤ | 16-30mesh0.5 |
- Q:How long is the fire endurance of the rock wool board?
- The rock wool board takes the basalt as raw material and is processed into artificial inorganic fiber through high temperature melting, which is light in weight, non-combustible, heat absorptive, small in thermal conductivity. The initial development in construction is a common type of application used for industrial buildings, which should be consistent with the requirements of "building insulation application categories and basic requirements" . In June 1981 the pre-launch succeeds. The rock wool board is a new type of insulation, burning compartment and sound-absorbing material. Generally the fire resistance of the rock wool board is 140-180 degree within two hours, It is best not to exceed this safe period, in order to avoid security risks.
- Q:What are the main characteristics of the sic refractories?
- 1. The usage temperature of silicon carbide refractory is generally 1760 ℃ 2. The silicon carbide refractories can withstand dramatic changes in temperature, and a good thermal shock resistance performance. To prevent the cracking or breaking of lining refractories. 3. Under the conditions of high or low temperature, it can withstand a certain compressive stress. 4. Under the conditions of high or low temperature, it can withstand friction. 5. It can withstand the huge hydraulic pressure or buoyancy of the metal. 6. It can also withstand the effect of furnace gases to prevent the infiltration of other refractories and reactions.
- Q:Who knows how to divide the building fire grade and fire resistance grade?
- I hope to help you building fireproof rank division is one of the most basic measure in building fire safety technical measures, Building's fireproof rank is divided into class one, two, three, four according to China's architectural design specification. Fire-resistant capability of the highest level is the strongest; Fire resistance of four level of the weakest. The fire resistance level of a building depends on the combustion performance and fire resistance of the building components that comprise the building. The so-called building component refers to a series of basic components, such as wall, foundation, beam, column, floor, stair, ceiling and so on. The judgment condition of the fire resistance There are three conditions for components' fire resistance limit to be reached, namely, the fire resistance limit of the building component: Loss of support and integrity; loss of time to fire the role of the time; as long as any of these three conditions is met, it will reach its limit of fire. Hope my answer will help you.
- Q:Could you tell me the fire-resisting time of class B fire proof door?
- The fire-resisting time of class B fire proof door is 1h and thickness of door can't be lower than 45mm.
- Q:What's the difference of fire-resistant material's density, specific gravity and bulk specific gravity?
- glass
- Q:What are the differences of ceramics and refractories? Is the ceramics belonging to refractories?
- The ceramics and refractories are different with the porcelain ceramic with high temperature of 1300℃ as household porcelain refractory. The porcelain refractory material of 1450℃ as the same as the aluminum oxide, kaolin, refractory clay and other raw materials demand the deployment ratio of the raw material the same as the temperature.
- Q:How to divided the grade of external wall thermal insulation materials?
- Synthesized the three versions of GB8624 (1997,2006,2011), external wall thermal insulation fire?rating can be basically divided into: A1, A2, B1, B2, B3 and other levels. There are many technical indicators to make specific division, but I partly cannot report for a while, because it is very professional and technical. I hope I can help you!
- Q:How many fire endurance grades are the AAA fire resisting shutter divided?
- The different fire resistant levels of the building have different requirements of the fire endurance of the building component. According to the fire endurance, the fire doors can be divided into Class A, Class B and Class C fire doors with the fire resistances are not less than 1.20h, 0.90h and 0.60h. Even the fire resistant level of B can also use the first rate fire resistant door.
- Q:Who can tell somthing about how to choose fire resistant rating of fire resistance rolling shutter doors?
- There is no necessary connection between them. Different fire resistant ratings of bulidings require different fire endurance of different elemements of buildings. 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 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:what is steel fire door made of ?
- 1. fire resistance steel door has steel made door frames, door leaf framework and door panels. if the door leaf is filled with nontoxic fire insulation material, added with fireproof hardware accessories, which consists of a door that is fire resistance. 2. Category 1)safety facilities to prevent underground building from fire expansion and control volatilation. It is usually divided into steel and wooden fire door. 2) Class A fire doors, fire endurance of 1.5 hours; B fire doors, fire endurance of 1.0 hours; Class C fire doors, fire endurance of 0.5 hours. 3) In fact, there are many types of fire doors. For example, there are wooden made fire doors glass fire doors and steel fire doors based on different materials. access control fire doors, entrance fire resistance door, interior fire doors, explosionproof and fireproof door, quick-lock fireproof doors, quick opening door encountered with fire and multi-functional fire doors. 4) Based on the installation location: External fire doors and built-in fire doors. 5) divided by technology: Electronic fire doors.
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