Components of coated abrasives
Substrate
The matrix is the carrier of abrasives and binders, and is also the leading factor for the flexibility of coated abrasives. The types of matrix are mainly paper, cloth, steel paper, composite matrix, non-woven fabric, polyester film, etc. Each matrix is also divided into several varieties due to the single weight, strength, thickness, composition, etc.
Substrate processing
A method of treating a substrate with a substrate treating agent. According to the application requirements, it is mainly divided into non-water-resistant treatment and water-resistant treatment, anti-static treatment, soft treatment, high-permeability treatment and oil-resistant treatment
Type of abrasives
There are natural and artificial, natural abrasive natural emery, garnet, artificial abrasive corundum, silicon carbide and so on
Grit size
Grit size is represented by abrasive size, which represents the size of the abrasive.
Planting density of sand
Represents the density of the distribution of abrasive particles on the surface of the abrasive, expressed by the percentage of abrasive coverage on the substrate per unit area, divided into two categories: thin and dense, can also be divided into three categories: thin, medium, dense.
The density of plant sand directly affects the efficiency of grinding.Dense abrasives have more cutting edges, high grinding efficiency, most abrasives are dense sand planting, but it has less space, small space to hold chips, easy to block and burn the workpiece.Thin abrasives have greater advantages.
Sand planting methods
There are two types of sand planting methods: gravity sand planting and electrostatic sand planting.
binder
Binder types, mainly animal glue, synthetic resin and paint three categories.
The strength of the abrasive bond, when the external force on the abrasives surface, the resistance of the binder to external forces so that the abrasive from the ease surface falling off. The main factors that affect the bond strength of abrasive are the type and amount of binder. Generally speaking, the strength of resin bond is higher than that of animal glue, and paint is mainly used in the manufacture of waterproof sandpaper. The amount of binder, bond strength is also high.
Super coating: the abrasive tool has the properties of anti-clogging, improved cutting rate, antistatic, etc.
The shape of coated abrasives
Coated abrasives have a variety of properties and uses according to the different materials of manufacturing methods, and their shapes can be roughly divided into five types: page-shaped, roll-shaped, banded, disk-shaped and special-shaped products.
Size: size and specification of abrasive tools
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