Small vacuum plasma surface treatment machine sealing components and air pressure show the importance

Small vacuum plasma plasma surface treatment machine sealing components and air pressure show the importance:
When evaluating the quality and reliability of a small vacuum plasma surface treatment machine and judging whether it meets the standards mentioned by everyone, one thing to pay attention to is many key components of the equipment, such as vacuum pumps, plasma generators, etc. , but there are actually some wrong choices or improper selection of small parts inside the equipment or common failures, which are also very important for the actual operation of the small vacuum plasma surface treatment machine. There are many ways to observe air pressure. It is an effective method to install pressure relief devices in the air circuit or part of the air circuit. Using this method, the display information of airway pressure is completed on the plasma cleaning machine. Generally, the pressure gauge is installed in the buried hole of the pressure regulating valve. It has the advantage that pressure can be observed immediately as it is being adjusted. In addition to installing a pressure gauge, a pressure sensor can also be installed to complete the air pressure display, but the pressure sensor is generally equipped with a control module or module to display the information. The advantage of this method is that the information on the operation panel can be displayed immediately on a small vacuum plasma surface treatment machine, but the complexity of programming is increased and the cost is high. Therefore, except for special requirements, it is rarely used in plasma cleaning processes. This paper first introduces the necessity of vacuum plasma cleaning machine to seal the parts in detail.
The vacuum part of the small vacuum plasma plasma surface treatment machine is sealed with a sealing key. Improper use of the seals can impair the functioning of the equipment. There are generally three types of sealing rings currently on the market, one is an O-ring, the other is a branch pipe support point sealing ring, and the other is a sealing ring.
The O-ring is composed of a low-friction filled polytetrafluoroethylene (PTFE) ring and a vulcanized rubber sealing ring. The type can provide sufficient sealing preloading capacity. The key of the vacuum plasma cleaning machine is that the vacuum chamber of the vacuum plasma cleaning machine is connected with other components, and has sealing functions, such as the sealing between the vacuum chamber and the vacuum door, the electrical level and the vacuum Sealing between cavities, sealing between vacuum chambers and sealing holes in the middle of vacuum tubes, etc. With plasma surface treatments, air pressure alone is not enough. In order to ensure the normal operation of all the mechanical equipment and the reliability of the main parameters of the processing technology, the influence of pneumatic manipulation must be considered in the design scheme. Because the pressure controller, overflow valve, etc. are installed on the safety air passage of the low-temperature plasma dust removal device, the larger pressure of the exhaust gas after the input is limited to a certain range, so the high-pressure monitoring alarm can generally be ignored, and only the low-pressure Alarm maintenance.
The main advantage of the pipeline support point seal is that the installation is relatively simple and convenient, and does not require any special tools. Good air tightness; in vacuum plasma cleaners, the key is to connect to the middle of the vacuum tube. The extruded vacuum fixture is used to clamp and seal the support points in the pipeline to achieve the actual effect of sealing. The middle of the pipeline adopts a general sealing method. Usually two methods are used to realize the low pressure alarm of the plasma surface treatment machine, that is, output data through the pressure gauge and the diaphragm pressure power switch.
The data signal output of the pressure gauge used in the plasma cleaning machine can be divided into two types: compass output and data display output, and has been verified in practical applications. Since the compass manometer has a data signal output, it is a mechanical system with less high-frequency interference, so it is widely used. When the instantaneous air pressure is too high, it will automatically turn off without any alarm signal. When the instantaneous air pressure is lower than the indicator light of the alarm, the alarm is on, and the internal power circuit is converted to complete the alarm output.
The sealing ring is a key part of industrial equipment, which is used to connect various parts of mechanical equipment to mechanical parts. High-quality asbestos are used to make acid and alkali resistant asbestos, which are used in small vacuum plasma surface treatment machines. It is made of chemical fibers, acid and alkali resistant chemical fibers, fillers, additives, etc. Wear resistance, temperature resistance, good sealing performance, mainly used in vacuum plasma cleaning machine vacuum pump shell. The data pressure gauge used in this plasma cleaning machine is an electronic digital pressure power switch, which can display air pressure data and output pressure alarms in real time. Instantaneous pressure and set low pressure are presented in the form of data, which has a strong visual effect and can reasonably avoid misunderstandings. The data pressure gauge can also be easily installed in the machine equipment servo cabinet through the mounting bracket. Compared with the needle pressure gauge, it has stronger application coordination. The disadvantage of the utility model is that, if the operation is improper during cleaning, the pressure gauge is used to display information by using the sensor and the digital integrated circuit, which is very easy to cause high-frequency signal interference.