Sanding process has the characteristics of high production efficiency, good surface quality and low production cost, so it has been widely used in furniture production. The final surface quality of furniture products is closely related to sanding process

Q: how to choose the right sanding belt?

A: abrasive belt is a strip tool for grinding and polishing which is bonded by abrasive to flexible materials such as paper and cloth. The belt is composed of the substrate, abrasive and binder

The base material of the sand belt used in furniture production is cloth and paper. The paper belt base is made of the high strength paper that has been specially treated. The sand belt of paper belt base is 1/3-2/3 lower than the sand belt of cloth belt base.Paper belt base is relatively hard, can grind a high finish surface, in fine grinding and super fine grinding are used paper belt base sanding belt. The strength of cloth belt is higher than that of paper belt, and its sensitivity to temperature and humidity is lower than that of paper belt. It will not lose stability due to the increase of temperature and humidity. The durability of cloth belt is much higher than that of paper belt.

The commonly used abrasive in furniture production is alumina, silicon carbide, zirconia aluminum, garnet, hand-made sandpaper is made of glass sand

The coarse and fine abrasive size has a great influence on the productivity of sanding and the roughness of the machined surface. Generally speaking, coarse grinding, plasticity, large grinding area, in order to avoid chip, workpiece soft selection of coarse particle; Fine grinding, workpiece harder selection of fine particle size.

The abrasive is bonded to the tape base by a binder. Binder should have strength, elasticity, heat resistance, water resistance, etc.At present, common binders are animal glue and synthetic resin.Animal glue is not water resistant, synthetic resin has good water resistance.The water-resistant sand belt adopts the water-resistant synthetic resin as the base adhesive and the compound adhesive for strict water-resistant treatment.

Q: what does the symbol on the back of the belt represent?

Answer: in order to facilitate the user to choose and buy and use, the production plant on the back side of the sand belt with the code: sand belt type, binder type, grinding particle type, grinding particle size, sand belt size, running direction and other parameters