Vacuum coating machine equipment troubleshooting

Vacuum coating machine equipment troubleshooting

Processing of fault point to find the vacuum coating machine fault point can be processed according to local conditions, simple solution is to change, small to aprons, bolt; Big to valve, vacuum pump, can change as long as there is at hand. For part should be according to the requirements for welding, after welding has yet to confirm whether meet the requirement. Maintenance should pay attention to the link when maintenance should be paid attention to several links. Namely, disassembly, cleaning, testing and assembly.
Vacuum equipment, big or small belong to precision machinery equipment, it is very important. Remove the should follow the principle of light to take light put, can't foolhardy, must not use a hammer to knock. When cleaning parts to clean thoroughly, in order to identify problems and find out hidden trouble. Vacuum pump products and general machinery products have bigger difference, general machinery products more collapse chamfer, and the edges and corners of vacuum pump and clear, very easy to hurt the hand should be more careful, be sure to keep in mind. Don't pour the edges.
Inspection is a delicate work, every detail is not to fall off, any tiny place is likely to be the problem, so can't exist fluky psychology. Whether use gasoline or other solvents to clean vacuum pump parts, be sure to wait for gasoline or solvent volatilization completely to assembly. If the vacuum pump oil and other oil mixed solvent or water damage the performance, affect the performance of the vacuum pump. Aprons wipe up, be careful to check the presence of defects and cracks, the size is correct, wrong size will affect the sealing. Wherever the heating position of aprons, every time remove the cleaning must change, each interface such as oil pump, pump parts when assembly also need to take put down light; Screw the strength should be both, should from diagonal is tight. Dynamic seal multi-purpose shaft seal, shaft seal on carefully, check the shaft seal itself with and without defects, the sealing face whether level off, the shaft seal spring elasticity, thin in the inside of the shaft seal can be coated with a layer of vacuum grease on the shaft seal when the strength should be both, the shaft seal skeleton don't partial pressure, the partial will spill, leak, shaft seal spring don't squeeze, not the shaft seal spring shaft seal failure.
Pay attention to the shaft seal and shaft concentricity, some pumps are used for wheel connection, coaxality of wheel is very strict, assembly from all around the shaft to quantity, guarantee the parallel line. Roots pump is the key to adjust the gear two 8 type gear not touching. The walls of diffusion pump and spray tower had better use dry habotai after clean. Due to the domestic production of diffusion pump mainly depends on the length of the electric stove wire to control the temperature of the oil pump, diffusion pump oil injection is to consider the actual situation of local power grid deliberate to increase or decrease. Amount of different diameter size oil pump also has difference, low voltage power grid oil can reduce 2 mm, as long as it is clean steel rod or wire can be used to measure. Due to the difference on the manufacture and use, diffusion pump oil quantity are for reference only. Maintenance in haste, without even knowing the fault for granted to begin dismantling, had not added new disease, in addition to complicate the simple question.