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Grinding costs Belt grinding costs low. This is mainly reflected in: Belt grinding equipment is simple. Compared with the grinding wheel grinder, the belt grinding machine is much simpler, which is mainly because of the light weight of the belt, the small grinding force, the small vibration during the grinding process, and the rigidity and strength requirements of the machine tool are far lower than the grinding wheel grinder. Abrasive belt grinding is easy to operate and has less auxiliary time. Whether it is manual or motorized belt grinding, its operation is very simple. All this can be done in a short period of time, from changing the belt to the clamp of the workpiece being machined. Abrasive belt grinding ratio, high power utilization of machine tools, high cutting efficiency. This reduces the tool and energy costs associated with the removal of materials of equal weight or volume, and takes up a short time. Korean deer brand sandpaper grinding is almost universal in all fields. Its variety of applications, and its wide range of other methods can not be compared with any other.
The specific performance is: Abrasive belt grinding can almost all the engineering materials. In addition to grinding wheel-processable materials, it can also process non-ferrous metals such as copper and aluminum and non-metallic soft materials such as wood, leather, and plastics. In particular, the cold-grinding effect of abrasive belt grinding makes it even more unique in the machining of heat-resistant and difficult-to-grind materials. The advantages of sand belt grinding can process various shapes of workpieces with high surface quality and precision. Abrasive belt grinding can not only process the common flat, inner and outer circular surface workpieces, but also can process large-scale or special-shaped parts with high surface quality and precision with high efficiency. For example: Polishing of large area plates.
The maximum width of the grinding wheel is only 1000mm, while the belt can be more than 2500mm. It is currently known that the widest sand belt grinding machine uses a sand width of 4900 mm. The actual processing width of belt grinding in actual use is 50~2000mm, and the processing thickness is 0.4~150mm. Its productivity is up to 1000m2/h. This wide belt grinding can be widely used on steel plates, stainless steel plates, silicon steel plates, aluminum plates, copper plates, particle board, plywood, medium density fiberboard, leather, insulation plates, ceramic plates, and spacecraft instruments, ships, and nuclear physics research devices. The use of a variety of high-precision surface roughness of large plates and other processing.
The abrasive particles on the abrasive belt have a stronger cutting ability than the abrasive particles of the abrasive wheel, so the grinding efficiency is very high. The high grinding efficiency of the belt is reflected in its high removal rate, grinding ratio (the ratio of the removed workpiece weight to the abrasive wear weight) and the power efficiency of the machine tool. Currently known belt grinding has achieved a removability rate of 700 mm3/mm·s, even exceeding that of turning or milling. The grinding ratio of the belt is much higher than that of the grinding wheel, up to 300:1 or even 400:1, while the grinding wheel is only 30:1. The power utilization rate of the belt grinder has reached 80% in the early stage of abrasive belt grinding and development, which is ahead of other machine tools, and today it is up to 96%, compared with only 52% of grinding wheel grinders, 57% of milling machines, and lathe 65 %, so belt grinding is still a very good energy-saving processing technology. Abrasive belts have high surface quality. In addition to the multiple functions of grinding, grinding, and polishing, this is because: As for the grinding of the grinding wheel, the grinding of the belt is known as cold grinding, that is, the grinding temperature is low, and the surface of the workpiece is hardly burned. phenomenon.
Abrasive belt grinding system has small vibration and good stability. Due to the light weight of the abrasive belt itself, the equilibrium state of the grinding process structural system is easy to control, all the rotating parts (such as contact wheel, driving wheel, tensioning wheel, etc.) wear very little, and there will be no imbalance like the grinding wheel. factor. In addition, the elastic grinding effect of the belt can greatly reduce or absorb the vibration and impact generated during grinding. The grinding speed is stable, and the belt drive wheel will not wear as much as the grinding wheel. The smaller the diameter, the slower it will be. The high surface quality of the ground workpieces with sand belts is mainly manifested in the small surface roughness value, good residual stress state, and no surface micro-cracks or metallurgical structure changes. From the surface roughness point of view, abrasive belt grinding has reached Ra0.01mm at present, achieving the effect of mirror grinding, and for roughness values ​​above Ra0.1mm, it is very easy to achieve. The residual stress on the abrasive surface of the abrasive belt is mostly in the state of compressive stress. Its value is generally -60~-5Kg/mm2, but the grinding of the grinding wheel is mostly tensile stress, so the abrasive belt grinding is very beneficial to strengthen the workpiece surface and improve the workpiece. Fatigue strength. Belt grinding with high precision. Due to the quality of belt production and the improvement of the production level of belt grinders, belt grinding has already entered the ranks of precision and ultra-precision machining, and the highest precision has reached 0.1 mm or less. Belt grinding costs low
Belt grinding costs
Grinding accuracy Belt grinding accuracy. Due to the quality of the belts and the improvement of the production level of belt grinders, belt grinding has already entered the ranks of precision and ultra-precision machining. The highest precision has reached 0.1mm.