The correct and reasonable selection of the sanding belt is not only to obtain good grinding efficiency, but also to consider the service life of the sanding belt. The main basis for selecting the sand belt is the grinding processing conditions, such as the characteristics of the grinding workpiece, the grinding machine state, the performance and technical requirements of the workpiece, production efficiency, etc. On the other hand, it must be selected from the characteristics of the sand belt
First, the use of sanding belt:
1. Board processing industry: raw board, chambered board, fiberboard, particleboard, veneer panel, furniture, building materials and other;
2. Metal processing industry: non-ferrous metals, ferrous metals;
3. Ceramics, leather, fiber, paint, plastic and rubber products, stone and other industries.
Second, the choice of sanding belt:
1. Selection of particle size:
In general, the choice of abrasive size is to consider grinding efficiency and workpiece surface finish. For different workpiece materials, the grain size range of coarse grinding, medium grinding and fine grinding is shown in the following table.
Workpiece material coarse grinding grinding fine grinding mode
Steel 24-6080-120150-W40 dry grinding wet grinding
Non-ferrous metal 24-6080-150180-W50 dry grinding wet grinding
Wood 36-80100-150180-240 dry grinding
Glass 60-80-100-120100-150180-W40 wet grinding
Paint 80-150180-240280-W20 Dry grinding wet grinding
Leather 46-6080-150180-W28 dry grinding
Rubber 16-4660-120150-W40 dry grinding
Plastic 36-60100-150180-W40 wet grinding
Ceramic 36-60100-150180-W40 wet grinding
Stone 36-60100-150180-W40 wet grinding
2. Choice of binder: According to different binder can be divided into animal rubber belt (commonly known as dry scrub belt), semi-resin belt, full resin belt and water resistant belt four kinds of sand. Its scope of application is as follows:
(A) animal rubber belt is cheap, easy to make, mainly suitable for low-speed grinding.
(2) The semi-resin sanding belt improves the poor moisture resistance and heat resistance of the animal rubber belt, greatly improves the bonding performance, and the grinding performance is multiplied when the price is not increased much. It is widely used in metal and non-metal grinding, especially in the wood and leather processing industry is more popular.
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