Yeda New Materials

Keywords:

Product News Download

Black corundum is a gray‑black crystalline material produced by high‑temperature smelting in an electric arc furnace, using either high‑iron bauxite or high‑aluminum bauxite combined with high‑aluminum iron ore, followed by cooling. It features α‑Al₂O₃ and ferrospinel as the dominant mineral phases and exhibits moderate hardness, excellent self‑sharpening properties, low grinding heat generation, and resistance to surface burn on workpieces.

Keywords:

Yeda New Materials

Plated White Corundum

Plated white corundum is a novel corundum material produced by deeply processing high‑quality white corundum as the raw material. After calcination, a coating of a specific material is applied to the abrasive surface using a controlled process. This approach retains the sharpness of white corundum while enhancing its toughness, eliminating dark streaks within the abrasive grains, and improving its resistance to breakage. The product features a large specific surface area, strong hydrophilicity, uniform particle size, robust bonding strength, and superior grinding and cutting efficiency. Currently, the market is dominated by white‑corundum‑plated white corundum.

Keywords:

Yeda New Materials

Calcined Brown Corundum

Calcined brown corundum is a specialized abrasive produced by subjecting conventional brown corundum to high‑temperature treatment. Following this specific calcination process, impurities within the abrasive are either precipitated or volatilized, resulting in a purer material with a rougher particle surface, which significantly enhances its hydrophilicity. At the same time, microcracks generated during crushing are healed, further improving the abrasive’s toughness and strength. Calcined brown corundum exhibits an extremely low coefficient of thermal expansion, excellent hydrophilicity, outstanding toughness, and high mechanical strength; sintered abrasives made from it display a deep blue color after firing, remain free of network‑like cracks, and show no rust spots.

Keywords:

Yeda New Materials

Dry impeller (small diameter)

A zirconia‑alumina flap disc is an coated abrasive tool that uses alumina as the abrasive and a cloth backing as its substrate. It is manufactured through a lamination process that bonds layers of cloth with resin, featuring a core structure that incorporates a chuck‑groove retention system and an L‑shaped snap‑fit groove for secure bonding. This product is suitable for surface finishing applications on stainless steel, metals, wood, stone, and other materials, enabling operations such as rust removal, polishing, and edge dressing.

Keywords:

Yeda New Materials