High-efficiency composite grinding sheet and manufacturing method thereof

Abstract

The invention discloses a high-efficiency composite grinding sheet and a manufacturing method thereof. The high-efficiency composite grinding sheet comprises a base material, base gel, an abrasive material and composite gel. The abrasive material is attached to the base material through the base gel and the composite gel, the back of selected steel vulcanized fiber paper is coated with the base gel through at least one of the methods of roller painting, blade coating and flat coating; the selected abrasive material is ground into abrasive material particles which are evenly mixed with the composite gel, and then the back of the selected steel vulcanized fiber paper with the base gel is coated with the mixture; a semi-finished product coated with the base gel and the composite gel is detached and sequentially undergoes a post curing process, a flexure and water entrainment process, a laser cutting process, a steel vulcanized fiber paper anti-deformation processing process and a storing process so as to support a grinding sheet finished product. The grinding sheet is sharp, long in service life, resistant to high temperature after being ground, and good in moisture resistance. The manufacturing method can effectively prevent deformation, and the product is large in tensile strength, good in adhesion and strong in grinding performance.

Description

technical field [0001] The invention belongs to the field of coated abrasives, and relates to an abrasive sheet and a preparation method thereof, in particular to a high-efficiency composite abrasive sheet and a preparation method thereof. Background technique [0002] Abrasive sheet refers to the use of ultra-precision coating technology to uniformly disperse selected micron or nano-sized grinding powder (diamond, silicon carbide, aluminum oxide, silicon oxide, cerium oxide, etc.) The surface of the base material is then processed by a high-precision cutting process. Abrasive sheets are used in a wide range of fields, such as optical communications, micro-motors, and hard disks. For example, the steel paper sand disc currently used in the market, the steel paper sand disc is also called a steel paper grinding disc, a high-speed grinding disc, and a grinding disc. Disc coated abrasives. It has high tensile strength and strong wear resistance. It can be installed on electr...

AI Technical Summary

Problems solved by technology

[0003] At present, the sand discs used in China are generally red steel paper sand discs, that is, the base material is red steel paper, but the red steel paper sand discs will absorb moisture when used, especially in summer, which will reduce the toughness of the red steel paper sand discs and eventually lead to The sand disc cracks, so many manufacturers use the form of adding glass fiber mesh in the middle to improve the toughness of the sand disc. For example, patent CN201420209Y proposes a new steel paper base paper, which is mainly coated on the surface of the steel paper with a layer of The strong fiber layer made of cotton fiber makes the base paper have strong water absorption. Patent CN201276524Y proposes a resin laminate grinding sheet, mainly by setting an epoxy resin glass fiber laminate with 5 layers to improve deformation. , mechanical strength, impact strength, toughness and other properties, but this increased glass fiber mesh will generate a lot of dust during the grinding process, and at the same time, due to the increase in hardness, the red steel paper that is easy to splash during grinding will cause injury to the staff