Glass is a brittle material with concentrated stress at its edges and corners. Deep scratches and chipping are caused by four major factors: white fused alumina selection, process parameters, equipment reclaiming system and the condition of glass substrate. 1. White Fused Alumina Related Causes Using excessively coarse grit sizes causes glass damage. Operators often apply

For coating‑glass blasting booth, white fused alumina grit is used for coating layer removal, glass substrate matte roughening, pre‑coating substrate pretreatment and defective‑coating rework & stripping. Core requirements: zero iron contamination, no residual discoloration, recyclable performance and controllable dust. Iron impurities must be avoided, as they will cause pin‑points and rainbow defects in subsequent coating

  White Fused Alumina for Sandblasting Stainless‑Steel Parts of Semiconductor Chip Equipment White Fused Alumina (abbreviated as WFA), also known as electro‑fused alumina and commonly called emery in the industry, features α‑Al₂O₃ as its main crystal phase with a Mohs hardness of 9. It is a special blasting abrasive for 304/316L stainless‑steel components of semiconductor

What abrasive is used for grinding alumina ceramic substrates? Grinding of alumina ceramic substrates generally adopts acid‑washed and hydro‑classified white fused alumina, namely electro‑fused alumina / carborundum micropowder. Material matching: White fused alumina features the same α‑alumina base material as alumina ceramic substrates, with similar thermal expansion coefficients. It reduces edge chipping and subsurface micro‑cracks

Alumina ceramic substrate is a hard‑brittle electronic ceramic. By adjusting the grade and particle size of white fused alumina powder, the process is divided into two stages: grinding & thinning (coarse‑medium‑fine grinding) and final mirror polishing. Main equipment: double‑side grinding machine, surface grinding machine, CMP (Chemical Mechanical Planarization) machine. 1. Grinding & Thinning Process (material

White Fused Alumina Micron Powder – Particle Size Conversion Table White fused alumina micron powder is produced from high-purity alumina. The raw material is melted at high temperature in an electric arc furnace, cooled and crystallized, then subjected to primary manual crushing, jaw crushing, ball mill grinding, water washing / acid pickling for impurity removal,