During the operation of the pvd coating machine, emergencies such as water outage, power outage, and air leakage are often encountered. As a professional coating engineer, how to deal with such sudden situations is a skill that must be mastered. The following is a summary of vacuum The editor will give you a detailed introduction to the emergency plan when the pvd coating machine is running. I hope it can help you:

1. First, the pvd coating machine works for a period of time, usually 50 to 70 heats. It needs to be cleaned to remove the dust from the furnace, and then it works once with an empty furnace. The working method is to first evacuate and heat when the vacuum degree is higher than 10-2 Pa. The heating temperature is generally 20°C higher than the normal operating temperature. Keep it warm at the highest furnace temperature for more than an hour, then cool naturally. This keeps the internal space of the device clean.
2. When the gas cylinder used in the pvd coating machine needs to be replaced, remove the pressure regulating valve and replace it with a new bottle of gas. Be sure to pay attention to no air leakage during installation. After replacing the new gas bottle, before the workpiece is heated, the furnace should be inflated during the evacuation process so that the existing atmosphere in the pipeline caused by the gas bottle replacement process can be extracted and the inflation pipeline can be kept clean.
3. Apply a small amount of vacuum pump oil to the lubricated surface of the rotating parts. Please pay attention to cleanliness, non-iron, sand and dust entering the vacuum pump, and positioning to make good contact. The vacuum pump should be installed so that it can rotate easily without any unevenness or serious clogging.
4. During normal operation, it is found that the equipment suddenly leaks air. If the leak point can be found immediately, the leak point must be sealed with vacuum sealing mud and treated after the work is completed. If the leak cannot be determined, work should be stopped immediately and then repaired.
5. What the pvd coating machine fears most is water and power outages at high temperatures. Therefore, it is best for users to have a backup water tank or connect a water pipe when installing the machine. If the machine is cut off from water or power when the temperature is high, the pumps and valves should be closed at this time. The operator should immediately turn on the backup water or tap water to water-cool the equipment. If power cannot be received soon, the charging and deflating system should also be turned on. The manual inflation valve is used to inflate and protect the equipment, and the inflation pressure is about -0.02 MPa. Then, turn all buttons on the control cabinet to the "off" position. At the same time, put a wet towel on the electrode lead-out interface and replace it regularly to prevent the electrode interface from overheating and causing damage to the sealing ring.
The above are common emergency measures for pvd coating machines. Improper handling of emergency methods can easily cause unnecessary losses and troubles, so coating engineers of pvd coating machines need to pay attention to this.