Abrasive belt grinding can process workpieces of various shapes with high surface quality and precision requirements. Abrasive belt grinding can not only process common flat, internal and external circular surface 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. 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 wide belt grinding can be widely used for steel plates, stainless steel plates, silicon steel sheets, aluminum plates, copper plates, particleboards, plywood, medium density fiberboards, leather, insulating boards, ceramic boards, as well as aerospace appliances and ships. And the surface processing of various high-precision and low-roughness large plates used in nuclear physics research equipment. The precision machining of discontinuous planes such as the section of the engine gearbox body can also be formed by grinding with a wide belt, and can ensure better sealing performance than traditional milling and planing surfaces.
Continuous polishing and grinding of metal strips or wires. Due to the development of wide belt grinding, thin strips have the same grinding conditions across the entire width. It will not cause excessive local stress and stress deformation, so the surface of cold-rolled steel strip, copper, aluminum strip and other 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 effective and economical processing method for the polishing and grinding of coils of stainless steel or other materials. The known wire polishing diameter is 0.8~20mm. The continuous operation speed is 6~150m/min.
Internal and external cylindrical polishing of workpieces with a large aspect ratio. In modern industry, it is very convenient to use abrasive belt grinding to process the outer circle of various large shaft workpieces with a large aspect ratio and the inner circle surface of pipe workpieces. Generally, it can be realized by adding an abrasive belt grinding device to large standard equipment. For large batches, special abrasive belt grinders can be used. Such as large generator rotors, rolls, paper drying cylinders and other workpieces of the outer circle and cylinders, petroleum pipelines, pressure vessels and other workpieces of the inner circle surface processing.
Polishing of complex and special-shaped workpieces. Forming and grinding of curved workpieces is more difficult. However, the flexibility of the abrasive belt can be used to conveniently process various complex curved surfaces. The internal fillet with a radius of curvature of only 3mm can also be polished by the abrasive belt. For example, aircraft engine sheets, steam turbine blades, navigation blades, condenser lamp bowls, reflectors, tableware, handles, plumbing appliances, etc. can all be polished with high efficiency and high quality using abrasive belts.
Abrasive belt grinding equipment has various forms and varieties. It can be performed on various general-purpose abrasive belt grinding equipment. The general-purpose abrasive belt grinding equipment includes portable belt grinding machines, universal belt grinding machines, and desktop belt grinding machines; the larger ones include external belt grinding machines, flat belt grinding machines, centerless belt grinding machines, and internal belt grinding machines, etc. The special belt grinders include camshaft belt profiling grinder, industrial tank sand belt polishing machine, automobile tire steel ring end surface sand belt polishing machine, motorcycle fuel tank sand belt polishing machine, and special stainless steel star basin hairliner, etc.
Post time: Jan-13-2022