Organic abrasives are characterized by a wide range of use
Release time:
2023-05-24 10:13
Source:
Organic abrasive tools are characterized by a wide range of use, with a certain degree of elasticity and high bonding strength, and has good polishing performance. In rough, fine, fine, polishing and other grinding processes are used, the resin grinding tools have the following characteristics:
1. High bonding strength
Compared with the ceramic binder, the resin binder has high bonding strength, and the grinding line speed of the resin wheel can reach 80~120m/s, and can withstand large grinding pressure. Heavy duty grinding wheel grinding pressure up to 10×104 ~ 40×104N, widely used in the iron and steel industry, such as various ingot, billet and other grinding processes. The coarse grinding process such as high-speed heavy load special grinding wheel has safe operation, suitable for high-speed grinding and large feed grinding, and high grinding efficiency.
2, with a certain degree of flexibility
Compared with ceramic abrasives, resin abrasives have good toughness and certain plasticity and ductility. Its elastic modulus (E) is dozens of times lower than that of ceramics. Therefore, resin grinding tools are suitable for the preparation of various specifications of wafer grinding wheels and high-speed cutting wheels. At the same time, due to a certain elastic deformation, it can buffer the effect of grinding force. Therefore, the grinding effect is good, the polishing effect is good, and the roughness of the machined surface can be improved.
3, can be made into a variety of complex shapes and special requirements of abrasive tools
Due to the low hardening temperature of the resin bonded abrasive, it can be hardened at room temperature, and the shrinkage rate is small, and it can be made into a variety of complex shapes and special requirements of abrasive tools. Such as: glass fiber reinforced resin grinding wheel, easy to remove chips, good heat dissipation porous resin grinding wheel and groove grinding wheel; Bolt-fastened grinding wheel, electrolytic grinding wheel, polishing wheel to improve grinding process conditions; And cylindrical, bowl, butterfly and other special-shaped grinding wheel.
4, wide range of application
Due to the variety of new resin bond, it can be made into various strength and performance of resin abrasive tools. Therefore, it can be widely used in rough grinding, rough grinding, cutting, semi-fine grinding, fine grinding, polishing and other processes. Resin grinding tools have high bonding strength, high speed and impact resistance, suitable for rough grinding and rough grinding. Resin grinding tool has good toughness, suitable for cutting process; Resin grinding has good elasticity, has a certain polishing property, can be used for fine grinding and polishing processing. Resin abrasive has low heat resistance, easy to wear, suitable for flat grinding and fine grinding.
5, is conducive to prevent the grinding of the workpiece burns
The resin bond has low heat resistance, which can reduce or avoid the phenomenon of burning the workpiece. The heat generated by the workpiece in the grinding process first carbonizes the resin, prompting the passivated abrasive to fall off automatically, exposing new sharp abrasive particles, reducing the heat in the grinding area and avoiding the workpiece burn.
6, resin abrasive hardening temperature is low, short production cycle, simple equipment
It is conducive to specialized production. The shortcomings lie in:
(1) Resin abrasive resistance to alkaline, water resistance is poor, easy to aging. The general valid storage period is one year. Therefore, it cannot be stored for a long time.
(2) Resin abrasive has low heat resistance, large wear during grinding, and is not suitable for shaping grinding.
(3) Low porosity of resin abrasive, processing odor, should pay attention to environmental pollution problems.
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