Heat-Resistant Pink Fused Alumina Sand For Foundry Casting
ink Fused Alumina is produced by doping Chromia into Alumina, which gives the material pink color. The incorporation of the Cr2O3 into the Al2O3 crystal lattice produces a slight increase in toughness and a reduced friability compared with White Fused Alumina.Compared to Brown Regular Aluminum Oxide the Pink material is harder, more aggressive and has better cutting ability. The grain shape of Pink Aluminum Oxide is sharp and angular.
تصریح
Description
Heat-resistant pink fused alumina sand is a type of abrasive material that is commonly used in foundry casting applications. It is made by fusing high-quality alumina with a small amount of chromium oxide at high temperatures, which gives it its pink color.
This type of fused alumina sand is known for its high heat resistance and toughness, making it ideal for use in high-temperature environments such as foundry casting. It is also known for its excellent abrasion resistance and hardness, which make it an ideal material for grinding and polishing applications.
When used in foundry casting, heat-resistant pink fused alumina sand is typically used as a mold material. It is mixed with a binder and then shaped into a mold, which is used to cast the metal. The sand is able to withstand the high temperatures of the casting process without breaking down, ensuring a smooth and accurate cast.
Specification
| Specification | Value |
|---|---|
| Chemical Composition | Al2O3: 98.5% min, Cr2O3: 0.5-1.5% |
| Color | Pink |
| Crystal Structure | Trigonal |
| Hardness | 9 Mohs |
| Melting Point | 2050°C |
| Bulk Density | 1.68-1.95 g/cm³ |
| Specific Gravity | 3.90 g/cm³ |
| Particle Size Distribution | F8-F220 (FEPA) or P12-P220 (ANSI) |
| Applications | Grinding, cutting, polishing, blasting, refractory materials, foundry casting, and ceramics |
Advantages
High hardness: PFA is a very hard material with a Mohs hardness of 9, which makes it ideal for use in grinding, cutting, and polishing applications.
High purity: PFA is made from high-quality alumina and has a minimum purity level of 98.5%, which ensures that it is free from impurities and contaminants.
High toughness: PFA has a high toughness and can withstand heavy use and high pressure without breaking down or wearing out quickly.
High heat resistance: PFA has excellent heat resistance, which makes it ideal for use in high-temperature applications such as foundry casting.
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