Electrically Fused Aluminum Oxide Sand 36#/46# White Corundum Sand for Aircraft Skin Pre-painting Treatment

Electrically Fused Aluminum Oxide Sand 36#/46# White Corundum Sand for Aircraft Skin Pre-painting Treatment is produced from fully smelted and crystallized white corundum fixed furnace material through processes such as crushing and screening. The particle size range of white corundum for sandblasting is strictly controlled to ensure the abrasive grains are within a specific range. Sandblasting produces a uniform surface roughness. White corundum has good toughness, strong grinding ability, and excellent self-sharpening. When blasted onto the surface of workpieces, it creates indentations through the impact of airflow. The passivated sandblasted surface enhances the adhesion of subsequent paint coatings. White corundum abrasive grains also offer high sandblasting efficiency and high utilization rates.

White Aluminum Oxide F36/F46 is made from 99% aluminum oxide powder as raw material, refined and crystallized through electric melting (hence white corundum is also called fused alumina and white fused alumina). The white corundum sand produced by our factory has high purity, low impurities, low sodium content, uniform particles, and high whiteness.

Chemical Composition (Typical Indicators) of Electrically Fused Aluminum Oxide Sand 36#/46# White Corundum Sand for Aircraft Skin Pre-painting Treatment:

Physical Properties of Electrically Fused Aluminum Oxide Sand 36#/46# White Corundum Sand for Aircraft Skin Pre-painting Treatment:

Product Models of White Corundum:

Main Performance Characteristics of White Corundum:

1. White corundum has a microhardness of 20.58 GPa, Vickers hardness of 2200-2400 kg/mm², and Mohs hardness of 9.0. It can be used for sandblasting on most metals, cast steel, cast iron, non-ferrous metal alloys, chromium/manganese/tungsten/molybdenum-containing metals, glass, and other non-metallic materials.

2. White corundum has strong grinding ability and high sandblasting efficiency. Due to its excellent self-sharpening properties, it does not cause burning or oxidation on the sandblasted surface.

3. White corundum can also be directly used for grinding, polishing, surface treatment, sandblasting for rust removal, etc. It is suitable for dry and wet sandblasting, surface polishing, and pre-spraying surface treatment and passivation.

4. White corundum has high purity of aluminum oxide, with the main crystal phase being α-phase aluminum oxide. It has low impurities and low magnetic content, leaving no chemical residues after sandblasting. It can be used for sandblasting mechanical components in the medical, aerospace, and food industries.

Characteristics of White Fused Corundum:

1. Due to its good self-sharpening, strong toughness, strong grinding ability, higher hardness than brown corundum, and low heat generation, it can be used as a raw material for abrasive tools such as cutting discs and grinding wheels.

2. White fused corundum can also be directly used in grinding and polishing, surface treatment, sandblasting and rust removal, and can be used in dry and wet sandblasting, surface polishing, and surface treatment before spraying.

3. Fused alumina sand has strong wear resistance, making it suitable as an additive material for wear-resistant products.

4. White fused corundum has a high refractory temperature, resistance to acid and alkali corrosion, and good thermal performance. It can be used as high-temperature resistant materials such as casting surface sand, thermally conductive ceramics, and high-temperature resistant adhesives. It is widely used in casting, steel refractories, chemical refractories, 95 batteries, decorative porcelain, special ceramics, daily-use porcelain, and high-tech industries such as semiconductors and electronics.

Applications:

Passivation of non-ferrous metals such as aluminum alloy and zinc alloy through sandblasting.

Surface treatment of metal parts, including sandblasting, rust removal, and pre-spraying preparation.

Sandblasting and atomization of colored inlaid glass and decorative glass.

Sandblasting passivation of dental prosthetics and pre-bonding treatment.

Surface treatment of materials such as ceramic tiles.

Sandblasting production lines for kitchenware and cookware.

Surface treatment of wooden furniture and bamboo products through sandblasting.

Sandblasting and etching of stainless steel, alloy steel, and cast steel.

Surface cleaning of composite materials and plastic products through sandblasting.

Micro-sandblasting of semiconductors and semiconductor packaging equipment.

Applications of WFA Abrasive Blasting Media:

1. Metal Sandblasting Surface Treatment:

Removing the oxide layer from metals, stainless steel, aluminum alloy, tungsten molybdenum, copper products, and other materials. Abrasive sandblasting for rust removal. White aluminum oxide grains have strong grinding ability and high efficiency. They can be recycled and will not leave residues on the workpiece surface. White aluminum oxide grains do not contain iron, sulfur, chlorine, or other elements, making them suitable for use in dentistry, food, medical equipment, aerospace, and other fields:

i. Surface treatment before spraying for processes such as spraying, painting, and supersonic thermal spraying to increase surface roughness and enhance the adhesion of sprayed materials. B-Preparation for surface treatment before painting the back panels of mobile phones and laptops.

ii. Surface treatment before metal spray welding and titanium plating, such as sandblasting before brazing of super-hard grinding wheels and cemented carbide.

2. Surface Treatment of Glass and Non-Metallic Materials:

i. Sandblasting, matting, polishing, and matte treatment of colored glass, glass products, ceramic products, bamboo chips, wood products, composite non-metallic materials, and other materials. Surface etching of rubber materials such as printing rubber rollers, rubber molds, PU materials, acrylic sheets, plastics, and other materials.

3. Semiconductor Industry: White aluminum oxide used for surface treatment of aluminum alloy semiconductor components, surface treatment and sandblasting before vacuum sputtering; removal of impurities on the back of wafers.

4. Mold Processing Industry: White aluminum oxide blasting media for surface treatment of metal molds, forged steel molds, forged aluminum molds, mold steel, carbon steel, and matte surface treatment after mold biting. For example, wire cutting molds, glass molds, tire molds, conductive rubber molds, shoe molds, bakelite molds, electroplating molds, button molds, plastic product molds, and other molds all use alumina sand.

5. Skin Cleaning: Microdermabrasion Crystals white aluminum oxide could improve scars, blackheads, pore size. It makes skin smooth and clean without any contaminant.