Advantages of belt grinding

Jun. 25, 2022

Abrasive belt grinding can process workpieces of various shapes that require high surface quality and precision. Abrasive belt grinding can not only process common plane, inner and outer 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, and the abrasive belt can be more than 2500mm. By 2012 the widest known belt grinder used a belt width 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 wide abrasive belt grinding can be widely used for steel, stainless steel, silicon steel, aluminum, copper, particleboard, plywood, medium density fiberboard, leather, insulation board, ceramic board, as well as aerospace equipment, ships and nuclear physics research devices Used for surface processing of various high-precision and low-roughness large plates. The precision machining of intermittent 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 it can ensure better sealing than the surface processed by traditional milling and planing.

Continuous polishing of metal strip or wire. Due to the development of wide abrasive belt grinding, the thin strip has the same grinding conditions on the entire width, so that the local stress will not be too large, resulting in stress deformation, so cold-rolled steel strip, copper, aluminum strip and other The surface of alloy strip, etc. is suitable for continuous polishing with abrasive belt. 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 method of polishing coiled wire rods of stainless steel or other materials. The known wire polishing diameter is 0.8~20mm. The continuous running speed is 6~150m/min.

The inner and outer circles of workpieces with a large aspect ratio are polished. In modern industry, 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. Generally, it can be achieved by adding an abrasive belt grinding device to a large standard equipment. For large batches, a special belt grinder can be used. Such as the outer circle of large generator rotors, rolls, paper dryers and other workpieces and the inner surface of cylinders, oil pipelines, pressure vessels and other workpieces.

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Polishing of complex shaped workpieces. Forming and grinding of curved workpieces is difficult. However, the flexibility of the abrasive belt can easily process various complex curved surfaces, and the inner fillet with a radius of curvature of only 3mm can also be polished by the abrasive belt. Such as aircraft engine sheets, steam turbine blades, navigation blades, condenser lamp bowls, reflectors, tableware, handles, plumbing appliances, etc., can be polished with high efficiency and high quality with abrasive belts.

Abrasive belt grinding equipment has various forms and varieties. It can be carried out on a variety of general purpose belt grinding equipment. The small general-purpose abrasive belt grinding equipment includes portable abrasive belt machines, universal abrasive belt machines, and desktop belt abrasive machines; the large ones include cylindrical abrasive belt grinders, flat abrasive belt grinders, centerless abrasive belt grinders, and internal circular abrasive belt grinders, etc. Wait. Special abrasive belt grinders include camshaft abrasive belt profiling grinder, industrial tank abrasive belt polishing machine, automobile tire steel ring end face abrasive belt polishing machine, motorcycle fuel tank abrasive belt polishing machine, special stainless steel star basin hairline machine Wait.