How to choose the right abrasive belt
1. Different types of abrasive belts are selected for different workpiece materials, different workpiece shapes, and different grinding methods, mainly from the types of substrates, abrasive materials, binder types, and abrasive belts. Connection method and other four aspects to choose.
2. Only by selecting the appropriate abrasive belt particle size can the surface quality of the workpiece be ensured and the service life of the abrasive belt be improved. If the particle size number of the selected abrasive belt is too small, the surface quality of the workpiece cannot be guaranteed; if the particle size number of the selected abrasive belt is too large, it will not only fail to reflect the high efficiency and economy of abrasive belt grinding but also the abrasive belt is easy to use. Wrinkles and breaks reduce the service life of the abrasive belt. If a workpiece adopts a multi-pass abrasive belt grinding process, the grain size of the abrasive belt used in the subsequent pass is two-grain sizes higher than that of the previous pass, so that the high efficiency of abrasive belt grinding can be exerted and the surface quality of the processed workpiece can be guaranteed.
3. The grain size of the abrasive has a great influence on the productivity of sand grinding and the roughness of the machined surface. Generally speaking, coarse grinding, large plasticity, large grinding area, coarse grain size to avoid chip insertion and soft workpiece, and fine grain size for the hard workpiece.
4. The base material of the abrasive belt for furniture production is cloth and paper. The paper belt base is made of specially treated high-strength paper as the belt base of the abrasive belt. The price of the paper belt base is higher than that of the cloth belt. The base abrasive belt is about 1/3-2/3 lower, and the paper belt base is relatively hard, which can grind the surface with high smoothness. The paper belt base abrasive belt is used in both fine grinding and ultra-fine grinding. The cloth belt base has higher strength than the paper belt base, is less sensitive to temperature and humidity than the paper belt base, and will not lose its stability due to the increase of temperature and humidity. much higher.
