First, clean the bearing in gasoline, wipe off the oil sludge and dust left on the bearing, and gently wipe and polish the rusty bearing with metallographic sandpaper until there is no roughness by hand.
2. Dry the cleaned bearings with dry rags, and then soak them in antirust oil. Computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan machine parts processing, CNC processing, in this process, the bearing should be completely contacted with the antirust oil, and the bearing should not stop rotating, so that the oil film formed by the antirust oil can cover the surface of the bearing, so as to achieve the purpose of rust prevention.
3. Next, apply lithium grease and grease evenly on the surface of the bearing, including inner and outer rings, wheels and cages. And it is to wipe while rotating the bearing, so that the grease really into the bearing, play a full role in lubrication.
There are many ways to obtain the accuracy of measuring workpiece size in machining, one of which is the trial cutting method. What is its main operation?
That is, first try to cut a small part of the machined surface, measure the size obtained by trial cutting, adjust the cutting edge position of the cutting tool to the workpiece according to the processing requirements, computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC machining, and then cutting again, and then measuring. After two or three times of trial cutting and measurement, when the processed size meets the requirements, then cut the whole Surface to be machined. The trial cutting method is repeated until the required dimensional accuracy is achieved through “trial cutting – Measurement – adjustment – re cutting”. For example, trial boring of box hole system.
The precision of the trial cutting method may be very high, it does not need complex devices, but this method is time-consuming (need to make multiple adjustments, trial cutting, measurement, calculation), low efficiency, depends on the technical level of workers and the accuracy of measuring instruments, and the quality is unstable, so it is only used for single piece and small batch production.
As a type of trial cutting method matching, it is based on the processed parts, computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC processing and its matching another workpiece, or the method of combining two (or more) workpieces for processing. The final dimension to be processed in the matching process is based on the matching requirements of the machined parts.
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