Abrasive belt grinding can process workpieces of various shapes with high surface quality and precision requirements. Abrasive belt grinding can not only process common plane, inner and outer circular workpieces, but also process large or special-shaped parts with high surface quality and precision requirements with extremely high efficiency. For example: polishing and grinding of large-area plates. The maximum width of the grinding wheel is only 1000mm, while the abrasive belt can be more than 2500mm. By 2012, the widest known abrasive belt grinder used a belt of 4900mm. In actual use, the common processing width of abrasive belt grinding is 50
2000mm, and the processing thickness is 0.4
150mm. Its productivity is as high as 1000m2/h. This kind of wide abrasive belt grinding can be widely used in steel plate, stainless steel plate, silicon steel plate, aluminum plate, copper plate, particle board, plywood, medium density fiberboard, leather, insulating board, ceramic plate, as well as aerospace equipment, ships and nuclear physics research devices Surface processing of various high-precision and low-roughness large plates used. The precision machining of interrupted planes such as the section of the engine gearbox body can also be formed by grinding with a wide abrasive belt at one time, and can ensure better sealing than the surface processed by traditional milling and planing.
Internal and external circular polishing of workpieces with large length-to-diameter ratio. It is very convenient to use abrasive belt grinding to process the outer circle of shaft workpieces with large aspect ratio and the inner circle surface of pipe workpieces in modern industry. Generally, it can be realized by adding an abrasive belt grinding device to large-scale standard equipment. For large batches, a dedicated abrasive belt grinder can be used. For example, the outer circle of workpieces such as large generator rotors, rolls, and paper drying cylinders, and the inner circle surface processing of workpieces such as cylinders, oil pipelines, and pressure vessels.
Polishing of complex shaped workpieces. Form grinding of curved surface workpieces is more difficult. However, the flexibility of the abrasive belt can be used to process various complex curved surfaces conveniently. The inner fillet with a radius of curvature of only 3mm can also be polished by the abrasive belt. For example, aircraft engine blades, steam turbine blades, navigation blades, spotlight lamp bowls, reflectors, tableware, handles, plumbing appliances, etc. can all be polished with high efficiency and high quality with abrasive belts.
Continuous polishing of metal strip or wire. Due to the development of wide abrasive belt grinding, the thin strips have the same grinding conditions across the entire width, so that local stress and deformation will not be too large, so cold-rolled steel strips, copper, aluminum strips and other Surfaces such as alloy strips are suitable for continuous polishing with abrasive belts. The processing width is 600
2100mm, the processing thickness is 0.1
2.2mm, the surface roughness value is Ra3.2
0.1mm, and the strip running speed is 3
80m/min. Planetary belt grinding provides a very efficient and economical process for polishing coiled wire of stainless steel or other materials. The known wire polishing diameter is 0.8
20mm. The continuous running speed is 6
150m/min.
Abrasive belt grinding equipment has various forms and varieties. It can be performed on a variety of general purpose belt grinding equipment. General-purpose abrasive belt grinding equipment includes portable abrasive belt machines, universal abrasive belt machines, and desktop abrasive belt machines; large ones include outer circular abrasive belt grinders, flat abrasive belt grinders, centerless abrasive belt grinders, and inner circular abrasive belt grinders, etc. wait. Special abrasive belt grinders include camshaft abrasive belt profiling grinder, industrial tank abrasive belt polisher, automobile tire rim end face abrasive belt polisher, motorcycle oil tank abrasive belt polisher, special stainless steel star basin hair wire machine wait.
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