Car after a surface by spraying, coarse, sandpaper may appear marks, flow marks,anti-white, orange peel and other small defects on the surface of paint film, in order to compensate for this, usually in a spray for polishing after treatmentin order to improve the mirror effect of paint film, meet the requirements ofbright, smooth, gorgeous. Here we look at polishing machine construction andoperational considerations.

　　Polishing machine consists of a base, selling, polishing cloth, polishing coverand cover basic elements. Motor fixed to the chassis, fixed polishing cone setsare connected by screws and the motor shaft. Polished fabrics through the ringis fastened on the thrown disc, receiving power from a switch on the base of themotor after the start, he can put pressure on the sample on the rotatingpolishing polishing. Polishing process of polishing can be fixed to the plasticplate drainage pipes into place on the base plate next to the polishing machine.Polishing covers and cover prevents dust and other debris falling on thepolishing cloth when machine is not in use and affect the results.

　　Polishing machine polishing of the key is to try to get the maximum rate inorder to remove Polish damage as soon as possible. Also polishing damage totissues layer does not affect final, that will not cause the organization.Former requirement to use coarse abrasive to ensure larger polishing rate toremove the grinding damage layer, but Polish damage layers deep; the latterrequires the use of the finest materials, polishing damage are relativelyshallow, but polishing rate low. The best way to resolve this conflict is thepolishing can be divided into two phases. Rough cast designed to remove grindingdamage layer, should have the maximum polishing rate at this stage, formation ofrough cast surface damage is a secondary consideration, but should also be assmall as possible, followed by the finely polished (or throw), the purpose of which is to remove rough cast surface damage produced, polished to minimizedamage.

　　Polishing machine polished sample grinding and polishing should be the absolute light parallel and evenly on the pad, prevent samples flown out and new wear because of too much pressure. Taking the sample and radius of the wheel direction of rotation moves back and forth to avoid polishing fabric wear too quickly in the polishing process to keep adding powder suspensions, keeps polishing fabric humidity. Too much humidity will reduce the wear of polishing, hard phases in the sample rendering embossed and non-metallic inclusions in steel and cast iron graphite phase in the "trailing"; climate is too small, due to the friction heat heating the sample, decrease lubrication, buffed and dull, or even black spots, light alloy, can throw the wound surface. In order to achieve the purpose of rough cast, requiring lower rotary speed, preferably not more than 500r/min; polishing time should be longer than the time required to remove scratches, as also to take out deformed layer. Buffed smooth after the rough cast, however bleak, uniform and detailed under the microscope and rubbed, finely polished to eliminate. Turntable speed can be increased when fine polishing, polishing time in order to get rid of rough behind the damaged layer. Fine polishing after grinding and bright as a mirror, BF under the microscope to see Nick, but in phase-contrast lighting conditions can still be seen to wear.Polishing machines polishing quality will have a serious impact on the organizational structure of the sample, has gradually attracted the attention of experts. In recent years, both at home and abroad on the polishing machine performance did a lot of research work, research and a lot of new models, the new generation of polishing equipment, is developed from a manual operation of all kinds of semi-automatic and fully automatic polishing machine. Here are some methods of mechanical polishing machine performance and features. Throwing machine light specifically for steel, and aluminum copper, metal products of surface and tube class for effect processing, dozens of species original accessories meet different need, easy manufacturing out various precision different of snow lines, and drawing lines, and wave lines, and dumb smooth, and mirror,, fast patch depth designated marks and minor scraping spent, fast polished and polishing; weld, and water mouth marks, and track oxidation film, and stains and paint,, applies in to Burr, and formed round angle, decorative sex metal processing, in processing process in the not formed shadow, and transition zone and decorative surface not uniform,, Important metal products production line equipment.

　　Polishing machine is simple in structure, still need to be properly used, dailymaintenance, use should pay attention to the following points. Polishing machinework continuously for too long a time, polishing-roller frictional heatingtemperature is high, the leather surface scald, cooling requirements after theoperation. Before and after work, and should be clean and polished surface, andwaxed to keep surface smooth and dust-free. Use, control the feed rollerpressure due, so as to avoid too much resistance, electrical heating is easy toburn out. The rotating parts of the drive chain lubrication, keep accurate andreliable transmission.

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