Too much humidity in the automatic polishing machine will weaken the wear scar, so that the hard phase in the sample will appear embossed and the non-metallic inclusions in the steel and the graphite phase in the cast iron will produce a "tailing" phenomenon; when the humidity is too small, heat is generated due to friction. The sample will be heated, the lubrication will be reduced, the surface will lose its luster, and even dark spots will appear. Light alloy will throw the surface. In order to achieve the purpose of rough throwing, the rotation speed of the turntable is required to be low, not exceeding 600r/min; the polishing time should be longer than the time required to remove the scratches, because the deformed layer is also removed. After rough polishing, the surface is smooth, but it is dull and dull. Under the microscope, there is a uniform and fine wear scar, which needs to be refined.
Too much humidity in the automatic polishing machine will weaken the wear scar, so that the hard phase in the sample will appear embossed and the non-metallic inclusions in the steel and the graphite phase in the cast iron will produce a "tailing" phenomenon; when the humidity is too small, heat is generated due to friction. The sample will be heated, the lubrication will be reduced, the surface will lose its luster, and even dark spots will appear. Light alloy will throw the surface. In order to achieve the purpose of rough throwing, the rotation speed of the turntable is required to be low, not exceeding 600r/min; the polishing time should be longer than the time required to remove the scratches, because the deformed layer is also removed. After rough polishing, the surface is smooth, but it is dull and dull. Under the microscope, there is a uniform and fine wear scar, which needs to be removed by fine polishing.
Too much humidity in the automatic polishing machine will weaken the wear scar, so that the hard phase in the sample will appear embossed and the non-metallic inclusions in the steel and the graphite phase in the cast iron will produce a "tailing" phenomenon; when the humidity is too small, heat is generated due to friction. The sample will be heated, the lubrication will be reduced, the surface will lose its luster, and even dark spots will appear. Light alloy will throw the surface. In order to achieve the purpose of rough throwing, the rotation speed of the turntable is required to be low, not exceeding 600r/min; the polishing time should be longer than the time required to remove the scratches, because the deformed layer is also removed. After rough polishing, the surface is smooth, but it is dull and dull. Under the microscope, there is a uniform and fine wear scar, which needs to be removed by fine polishing.