Advantages of belt grinding
  • Date:2022-02-25
  • Read:1849
     Abrasive belt grinding can process workpieces of various shapes with high surface quality and precision requirements. Abrasive belt grinding can not only process common workpieces with flat and inner and outer circular surfaces, but also process large or special-shaped parts with high surface quality and precision with 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 belt grinder will use 4900mm wide belt. 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 up to 1000m2 / h. This wide abrasive belt grinding can be widely used for surface processing of steel plate, stainless steel plate, silicon steel sheet, aluminum plate, copper plate, particleboard, plywood, medium density fiberboard, leather, insulating plate, ceramic plate, as well as various large plates with high precision and low roughness used in aerospace appliances, ships and nuclear physics research devices. The precision machining of intermittent planes such as the section of engine gearbox can also be formed by grinding with wide abrasive belt at one time, and can ensure better sealing than the surface processed by traditional milling and planing.

    Continuous polishing and grinding of metal strip or wire rod. Due to the development of wide abrasive belt grinding, the thin strip has the same grinding conditions in the whole width, so as to avoid excessive local stress and stress deformation. Therefore, the surfaces of cold rolled steel strip, copper, aluminum strip and other alloy strips are suitable for continuous polishing with abrasive belt. The processing width is 600 ~ 2100mm, the processing thickness is 0.1 ~ 2.2mm, and 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 coiled wire 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 grinding of workpieces with large aspect ratio. In modern industry, it is very convenient to grind the outer circle of various large shaft workpieces with large aspect ratio and the inner circle surface of pipe workpieces with abrasive belt. Generally, it can be realized by adding a belt grinding device to the large-scale standard equipment. For large quantities, special belt grinder can be used. For example, the outer circle of large generator rotor, roll, paper drying cylinder and other workpieces and the inner circle surface of cylinder, oil pipeline, pressure vessel and other workpieces.

    Polishing and grinding of complex special-shaped workpiece. The forming grinding of curved surface workpiece is very difficult. However, using the flexibility of the abrasive belt can easily process various complex curved surfaces, and the fillet with a radius of curvature of only 3mm can also be polished by the abrasive belt. For example, aircraft engine blades, turbine blades, navigation blades, spotlight bowls, mirrors, tableware, handles, plumbing appliances, etc. can be polished with abrasive belts with high efficiency and quality.

    Belt grinding equipment has various forms and varieties. It can be carried out on various general mold belt grinding equipment. General purpose abrasive belt grinding equipment. Small ones include portable abrasive belt machine, universal abrasive belt machine and desktop abrasive belt machine; Large ones include cylindrical belt grinder, plane belt grinder, centerless belt grinder and inner circular belt grinder, etc. Special belt grinding machines include camshaft belt profiling grinding machine, industrial tank belt polishing mill, automobile tire steel ring end face belt polishing mill, motorcycle oil tank belt polishing mill, special stainless steel star basin hair machine, etc.

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