Nanofiber filter membrane epoxy resin composite material is one of the typical difficult-to-process materials due to its high strength and high modulus, and it has a certain degree of water absorption. During the processing, it sometimes prevents the carbon powder from splashing. , Water vapor will be used to reduce dust, which may cause the nanofiber filter membrane to absorb water and cause fiber pullout, internal debonding, and delamination. Therefore, dry grinding is appropriate.

Grinding is a finishing method, the dimensional accuracy can reach IT5-IT7, and the surface roughness can reach 0.8-0.025μm. The traditional grinding wheel is used to process the nanofiber membrane resin composite material, but when the abrasive particles are small, the chip holding space is limited. During the processing, only part of the abrasive particles play a role in the grinding contact area, and the redundant abrasive particles are prone to generate a lot of heat , It is easy to cause fiber delamination and grinding wheel blockage, which will have a serious impact on product quality.

Nanofiber filter membrane has high hardness and strength, and it wears quickly with ordinary abrasives. Therefore, cubic boron carbide abrasives with higher wear resistance are used, such as JETE's CBN210A. The abrasive grains are multi-edge sharp and high temperature resistant. Abrasives for dry grinding of composite materials Group controllable arrangement of electroplated super-hard abrasive cup grinding wheels, through selective compound electroplating technology, the super-hard abrasive grains are piled up in groups according to the shape and arrangement set by the mask, with a certain distance between the abrasive groups and regular arrangement , Carry out dry grinding processing of nanofiber filter membrane composite material.

The new type of abrasive group can be used to control the arrangement of the grinding wheel. After grinding, the loosely accumulated space between the abrasive groups is ground and cut, which is beneficial to timely discharge the grinding contact area, and effectively avoids the accumulation of grinding and cutting on the surface of the abrasive particles. Block to prevent the occurrence of clogging of the grinding wheel.