After slicing silicon wafer, sandblasting treatment can remove the oxide layer and improve the flatness. The commonly used sandblasting method is wet micro-sandblasting. The blasting media for this application is white fused aluminum oxide 15-20um powder.
White fused alumina is one of the most important grinding and wear-resistant materials in industry. It combines good wear resistance, self sharpening, and toughness. White fused alumina is a type of artificial aluminum oxide. It has a higher hardness, chemical inertness, and better refractory properties after high-temperature treatment and cooling. In the wear-resistant and anti-slip industry, the use of white fused alumina is also very extensive.
Sandwish ceramic sintering tray is a commonly used refractory kiln tool for firing magnetic materials and electronic ceramics. It has a high refractory temperature, but after firing, problems such as coating detachment and ceramic material adhesion may occur. Therefore, after using the burning plate for a period of time, it is necessary to sandblast and clean the burning plate with abrasives such as white corundum 80 mesh and 120 mesh.
The platelet alumina micropowder WCA is well-known for its unique platelet structure. Initially, platelet alumina micropowder was developed by Microgrit in the United States. Researchers discovered that alumina crystals that have undergone high-temperature calcination under certain conditions have a hexagonal platelet crystal shape. If used for grinding, this structure will not have many sharp corners like traditional alumina. That is conducive to the grinding of fine components. WCA micropowder is the specification name of Microgrit company. Since then, Japanese semiconductor material giant FUJIMI has also produced a similar product, spec name PWA. Therefore, alumina micropowder WCA and PWA are the same form of alumina powder.
Ferro residue is a significant threat to the workpiece in the sandblasting process. Sandblasting is a surface treatment process that involves etching stainless steel and metal surfaces through high-speed abrasive spraying. Abrasives can damage the surface of stainless steel. If there are residues of ferro-containing components, it can cause iron residues to react with air and cause rust spots. White fused aluminum oxide is alumina with a purity of over 99.5%. And Fe2O3 content of less than 0.1%, and a magnetic content of less than 0.01%.
White fused alumina F240 works in Polyurethane In-Mould-Coatings to improve the performance. Polyurethane in-mold- coatings are suitable for wear-resistant foam components such as automotive interior accessories, foam shoe sole materials, and the surface of polyurethane foam plastic products. Although the PU slurry is used in injection molds, it adheres to the surface of polyurethane products after injection molding. It plays a role in anti-slip, wear resistance, aging and yellowing prevention, and acid and alkali resistance. Thereby improving the service life of the product and increasing its aesthetic appeal.
White corundum production is a highly energy-consuming and resource-consuming industry. In recent years, various white corundum manufacturers have been affected by low market demand in domestic and international markets. That results in consistently low operating rates. However, with the fluctuation of alumina prices, the price of white corundum rises accordingly.
Aluminum oxide plasma spraying is a special surface treatment technology. It’s widely used in fields such as automotive manufacturing, aerospace components, electronic equipment, medical equipment, etc. It prevents the metal from being directly exposed to the air by spraying a coating on the metal surface. This can improve the basic requirements for rust prevention and aging of metals. Using aluminum oxide coating as a spraying material can also improve the high-temperature resistance, corrosion resistance, wear resistance, and oxidation resistance of the workpiece. Here are the characteristics of 99.9% white fused aluminum oxide powder 600 # for plasma spraying.
High-purity white morundum is an excellent grinding and sandblasting medium for surface preparation after casting formation and before spraying coating. On the research surface, 99% white morundum F80 is used for sandblasting and acid etching treatment of titanium parts. The surface roughness was about 3um, which was beneficial for the coating to adhere to the surface of titanium parts.
The coated separator is an important inner component of lithium batteries. It is used to separate the positive and negative electrodes and prevent short circuits in contact between the two poles. The performance of the separator has a significant impact on the storage and safety performance of the battery. Lithium battery coated separators need to have good mechanical tensile properties and strength, good thermal and chemical stability, uniform thickness, and certain breathability. White Fused Aluminum oxide powder 1-2um works as a toughening material for coating the separator.
