Abrasives Disc

Grinding discs are the core carrier of surface treatment processes. Their classification system forms a multi-element matrix based on abrasive systems, matrix configurations, and dynamic grinding performance. The industry mainstream is divided into three major spectrums according to abrasive properties: oxide system, carbide system, and superhard material system. Among them, zirconium corundum grinding discs occupy 45% of the metal processing field. The 80-120 mesh abrasive gradient design can take into account the grinding efficiency of stainless steel welds and the Ra3.2μm surface accuracy.

Matrix technology innovation continues to break through performance boundaries: glass fiber reinforced resin base discs use three-way cross-plying, with a bending strength of 380MPa, suitable for angle grinders at 15000rpm; aviation-grade aluminum alloy bases are treated with micro-arc oxidation, and the thermal conductivity is increased by 60%, solving the problem of heat accumulation in grinding of carbon fiber composite materials. Diamond grinding discs innovatively apply brazing technology, and the abrasive holding force is increased by 5 times compared with the electroplating process, achieving submicron surface accuracy in optical crystal processing.

Structural design directly affects operational efficiency: The 7-hole heat dissipation grinding disc optimizes the aperture distribution through fluid simulation, reducing the temperature of the grinding area by 40%; the elastic buffer layer design reduces surface scratches by 90% in automobile sheet metal repair. The special grinding disc for the construction industry adopts a wavy abrasive arrangement, combined with rare earth additives, and the concrete grinding efficiency reaches 12m²/h.

Industry standards strictly regulate product safety. EN 13743 stipulates that the grinding disc breaking speed must reach 2 times the rated value, and ISO 603 requires the imbalance to be ≤8g·mm. Environmentally friendly water-based resin-based discs reduce VOC emissions by 75%, and the penetration rate in the EU market exceeds 33%. Smart grinding discs have entered the practical stage, with built-in piezoelectric sensors to monitor abrasive loss in real time and warn of node replacement through LoRa wireless transmission. Frontier fields focus on the development of nano-composite abrasives, and cerium oxide-diamond hybrid grinding discs have achieved a breakthrough in surface roughness Ra0.05nm in sapphire polishing.