Polishing machine usually should be how to use

Polishing machine usually should be how to use
Use method of polishing machine and matters needing attention
The polishing machine is composed of a base, 7906, polishing cloth, polishing cover and cover basic components. The electric motor is fixed on the base, and the cone sleeve of the polishing disc is connected with the motor shaft through a screw. Polishing fabric through fastening grommets on the polishing disc motor through the base of the switch on the power supply after the start, usable hand of the sample applied pressure in the rotation of the polishing disc polishing. The polishing process to join the polishing liquid through fixed on the base plate of the plastic drain pipe into the quadrate dish placed on the polishing machine next to the. Polishing cover and cover can prevent dust and other debris falling on the polishing fabric and the effect in the machine when not in use.
The key to the operation of the polishing machine is to try to get the maximum polishing rate so as to remove the damaged layer as soon as possible. At the same time, the polishing damage layer will not affect the final observation of the organization, that is, it will not cause the false organization. The former requirement to use coarser abrasive, to guarantee a high polishing rate to remove grinding damage layer, but the grinding damage layer is deep; the latter requires use of the finest materials and enable polishing damage layer is shallow, but the polishing rate low. The best way to solve this problem is to divide the process into two stages. Rough polishing is to remove grinding damage layer, this stage should be with the biggest polishing rate and rough cast formation and surface damage is a secondary consideration, but also should be as small as possible; followed by polishing (or final throw), its purpose is remove the rough polishing of surface damage, the polishing damage is reduced to a minimum.
When polishing the polishing machine, the sample grinding surface and the polishing disc should be absolutely parallel and evenly on the polishing disc, pay attention to prevent the specimen fly out and the pressure is too large to produce a new grinding marks. At the same time, we should make the sample rotation and move back and forth along the radial direction, so as to avoid the polishing fabric local wear too quickly in the polishing process, we should continuously add micro powder suspension, so that the polishing fabric to maintain a certain humidity. Humidity is too general to weaken polishing grinding marks and the specimen in hard phase showed embossed and steel in non metallic inclusions in steel and cast iron graphite phase "trailing" phenomenon; humidity is too small, due to friction heat will make the sample temperature, reduced lubrication, grinding to lose luster, and even spots, light alloy will hurt the surface polishing. In order to achieve the purpose of rough polishing, the rotary speed is low, it is best not to exceed 500r/min; polishing time should be longer than the time required to remove the scratches, because the deformation layer is also removed. After rough polish smooth, but under the microscope with intense darkness without light, wear uniform, fine polishing to be eliminated. Fine polishing appropriately increasing the speed dial polishing time to remove the damaged layer of rough polishing is appropriate. After the fine grinding polishing and it is bright as a mirror, under bright field microscope conditions can not see scratches, but in contrast lighting conditions, can still see the wear scar.
The quality of polishing machine has seriously affected the organization structure of the sample, which has been gradually paid attention to by the experts. In recent years, the performance of domestic and external polishing machine made a lot of research work, the new models, a new generation of polishing equipment, is by the original manual operation development become a variety of semi-automatic and fully automatic polishing machine. The performance and characteristics of several mechanical polishing machines are introduced. Polishing machine light specifically for steel, aluminum and copper and other metal products surface and tube effects, dozens of the original accessories to meet different needs, easily create a variety of accuracy of different snow pattern, drawing lines, wave pattern, satin, the mirror, rapid repair deep scratches and minor scratches, fast grinding and polishing; welds, nozzle mark, trace of oxide film, stain and paint for forming a rounded in deburring,, decorative metal processing, in the process will not form shadow, transition zone and a decorative surface uneven, metal products production line of important equipment.
Polishing machine structure is simple, still need to use correctly, do a good job in daily maintenance, use should pay attention to the following points. Continuous work long time polishing machine, polishing roller friction heat of high temperature, easy to burn the leather surface, cooling after the operation. Before and after work, should be clean and keep the surface of the polishing roller, roller surface smooth and clean wax. In use, the appropriate feeding roller pressure control, so as to avoid too much resistance, easy to burn out heating appliances. Do a good job of the transmission chain of the rotating parts of the lubrication, maintain accurate and reliable transmission.
The polishing machine produced by West Lake Hangzhou grinder has the advantages of good quality, high grinding efficiency, high cost, good appearance, and so on.