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How to check the vacuum pump when the vacuum plasma cleaner is slow in pumping speed

How to check the vacuum pump when the vacuum plasma cleaner is slow in pumping speed

How to check the vacuum pump when the vacuum plasma cleaner is slow in pumping speed: In an article a few days ago, I introduced the effect of material infiltration on the evacuation speed of the vacuum plasma cleaning machine. Although the material infiltration is one of the reasons for the slow down of the vacuum plasma processing system, in fact, the vacuum pump It is very common for problems to cause sabotage and lower efficiency. So how do we check and maintain the vacuum pump correctly? In the vacuum plasma cleaner, when the vacuum capacity drops, it can be run under no load first. If a higher vacuum limit is tested, such as 8Pa, it can be judged that the vacuum pump is faulty. At this time, the vacuum pump needs to be Split inspection. The key inspection contents are as follows. 1. Inspection of the vacuum oil pump: The processed product itself contains a lot of impurities, and the vacuum oil is not replaced in time, the vacuum oil will become turbid and viscous. This kind of inspection is mainly to check the oil condition in the vacuum pump chamber. If the quality of the oil drops, it is necessary Replace with new oil. 2. Inspection of the filter element and filter screen of the suction filter of the vacuum pump: This inspection is mainly to check whether there is a large amount of impurities deposited in the vacuum pump filter element and filter screen of the vacuum plasma cleaner, which causes the mesh to be blocked and affects the suction speed. If it is blocked, it should be cleaned in time. 3. Check the vacuum pump chamber: This inspection is mainly to check whether there is a large amount of deposits and adhesion of impurities in the vacuum pump chamber. This is because after the vacuum pump is turned on, the impurities in the chamber will begin to flow. If there are too many impurities, the rotor of the vacuum pump will be stuck. Scratches and damages of the rotary vanes at all levels, the sealing of the oil circuit, the break of the exhaust valve, and many other situations have affected the evacuation capacity of the vacuum processing equipment, and even caused the damage of the main components of the vacuum pump. 4. Inspection of the exhaust valve plate: This inspection is mainly to check the breakage of the exhaust valve sheet. The exhaust valve acts as a one-way valve in the vacuum pump. If the one-way valve breaks, it will fail, resulting in a reduction in the evacuation capacity of the vacuum plasma processing system. 5. Inspection of rotating pieces at all levels: This project mainly checks whether there is wear and damage to the rotary vanes of the vacuum pump at all levels. If the abrasion or damage is serious, the gap between the rotary vanes will increase and the pumping capacity will be affected. 6. Check the sealing ring: If the sealing ring of the vacuum pump chamber is damaged, it is easy to cause oil leakage and affect the pumping speed. 7. Check the check valve: For example, if the check valve of the vacuum plasma cleaner is damaged, the vacuum capacity of the equipment will also be reduced. Chengfeng Zhizao focuses on the research and development and manufacturing of plasma technology. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao. Chengfeng Zhizao is waiting for your call!

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Vacuum plasma cleaning technology improves the printing and bonding quality of glass cover plate coating

Vacuum plasma cleaning technology improves the printing and bonding quality of glass cover plate coating

Vacuum plasma cleaning technology improves the printing and bonding quality of glass cover plate coating: Glass covers are widely used in the display industry, and everyone is familiar with the glass covers used for LCD panels and touch panels. In terms of materials and applicable parts, the glass cover uses the glass layer on the surface of the liquid crystal and TP. In order to ensure the quality of its products, that is, to improve the printing effect, bonding effect and coating effect, ultrasonic cleaning is often used for surface treatment in the past. In the industry's trend toward precision, do you also feel that the coating, printing and bonding of glass cover plates are also difficult to achieve the desired results? In the next step, you may want to learn about the processing technology of low-pressure vacuum plasma cleaning technology. 1. Limitations of ultrasonic cleaning methods: The ultrasonic cleaning method uses its multiple effects in the liquid to disperse and peel off the dispersion and peeling of large-particle contaminants on the surface of large particles, so as to achieve the purpose of cleaning. Since the ultrasonic cleaning method can only remove large-particle contaminants, only Using the ultrasonic cleaning method, some organic substances and particles invisible to the naked eye are often left on the surface of large-particle contaminants. Due to the existence of these substances and particles, the subsequent coating, printing, bonding and other processing effects are not ideal. The vacuum plasma cleaning technology can not only remove organic substances and particles that are difficult to distinguish by the naked eye, but also activate and etch the glass surface, greatly improving the coating, printing, and bonding effects, thereby improving the production efficiency of the glass cover. 2. An example analysis of the actual treatment of the glass cover by the vacuum plasma cleaning machine: In actual customer cases, the customer's requirements for the plasma treatment of the glass cover plate are: the glass printing area is clean, the surface is free of oil stains or black spots, and the surface is smooth. Without the effect of plasma treatment, its surface will have some contaminants and particles before it is plasma cleaned. At this time, the effect of subsequent treatment is not ideal. Using a vacuum plasma cleaning processor for plasma treatment, the effect of plasma treatment can be clearly seen. At this time, the next process is carried out, the effect is up to the requirements, and the product yield is improved. Chengfeng Zhizao focuses on the research and development and manufacturing of plasma technology. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao. Chengfeng Zhizao is waiting for your call!

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The effect of surface plasma treatment equipment treatment process on bamboo surface wettability

The effect of surface plasma treatment equipment treatment process on bamboo surface wettability

The effect of surface plasma treatment equipment treatment process on bamboo surface wettability: At present, my country's forest resources are severely lacking, and the per capita forest area and forest accumulation are only 1/4 and 1/7 of the world per capita level, respectively. The bamboo resources in my country are very rich. The bamboo forests are planted in a wide area and there are many varieties in the country, which is known as the "Bamboo Kingdom". Bamboo grows fast, has a short yield cycle, is green, environmentally friendly, renewable, and has excellent material properties. Many uses can replace wood. "Substituting bamboo for wood" can effectively alleviate the contradiction between wood supply and demand. However, due to the different properties of each part of the bamboo wall, there are still shortcomings. For example, the glue, paint, preservative, and flame retardant impregnation of bamboo green and bamboo yellow have poor effects, and they are often removed in actual production, which greatly reduces The utilization rate of bamboo material seriously restricts the industrialized production of bamboo material. 　　In order to improve the wettability of each part of the bamboo wall, and make the bamboo material (especially bamboo green and bamboo yellow) to be efficiently used, the cold plasma treatment technology of surface plasma treatment equipment is introduced to modify the bamboo material. Surface plasma treatment equipment Plasma is a particle with energy. When it contacts or collides with the surface of the bamboo material, it will transfer its energy to the molecules and atoms on the surface of the bamboo material, and then produce some physical and chemical reactions on the surface of the bamboo material, thereby changing the The surface properties of bamboo including wettability. 　　The wettability characterizes the difficulty and effect of the liquid wetting, spreading and adhering on the surface of the bamboo when the liquid contacts the bamboo. The research on the modification of bamboo wettability is of great significance to the post-processing of bamboo gluing, surface finishing, anti-corrosion, and flame retardant. Plasma technology of surface plasma treatment equipment can significantly improve the wettability of bamboo green and bamboo yellow and the strength of bamboo products, increase the utilization rate of bamboo, and effectively protect forest resources. It is important for the processing and utilization of bamboo wood-based panels and other bamboo products. The theoretical significance and practical application value. Oxygen, nitrogen and argon are used as plasma treatment gases, which can significantly reduce the equilibrium contact angle of bamboo. The order of influence is oxygen>nitrogen>argon. This is because when oxygen is used as a treatment gas, it is easy to attract people on the surface of bamboo_ Oxygen-containing polar functional groups such as OH and -COOH can promote the wetting, spreading and permeation of the phenolic resin glue on the surface of the bamboo. As an inert gas, the plasma treatment is mainly performed by etching the surface of the bamboo to improve the phenolic resin glue. The spreading and penetration rate. The equilibrium contact angle of bamboo green bamboo meat and bamboo yellow surface will gradually decrease with the prolongation of plasma treatment time of surface plasma treatment equipment, and then become stable. This is due to the etching (surface material The removal of the polymer and the scission of the polymer molecular chain) and the increase of active groups occur simultaneously. 　　 Proper plasma treatment time of surface plasma treatment equipment can enable active groups to be implanted on the surface of bamboo, and the degree of etching is small, which improves the wettability of the bamboo surface.

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How to classify the vacuum control valve of low-pressure vacuum plasma machine

How to classify the vacuum control valve of low-pressure vacuum plasma machine

How to classify the vacuum control valve of low-pressure vacuum plasma machine: A low-pressure vacuum plasma machine that can perform plasma surface treatment of substances in a vacuum environment. Its basic parameters are excitation frequency, excitation energy, vacuum degree, gas flow, cavity structure, and gas characteristics. The vacuum air circuit control valve can realize the on and off of the air circuit, so as to control the vacuum degree and other parameters. There are three main types of control valves for vacuum control of low-pressure vacuum plasma machines. They are high-vacuum pneumatic baffle valve, electromagnetic vacuum with inflation valve, and manual high-vacuum angle valve. The working principle is roughly the same, and they can basically be controlled. The valve realizes the functions of on and off of the vacuum circuit and pressure measurement to ensure the reliable and stable operation of the equipment. Different types of equipment have different applicable characteristics. High vacuum pneumatic baffle valve: GDQ is also called high-vacuum pneumatic baffle valve. Generally, when the low-pressure plasma equipment in the vacuum pipeline is on standby for a short time, the vacuum pump can still keep working. The high-vacuum pneumatic baffle valve can switch on and cut off the airflow in the vacuum pipeline. So as to realize the opening and closing of the vacuuming process in the vacuum chamber. The high-vacuum pneumatic baffle powered by compressed air is stable and reliable in operation and easy to maintain. It is one of the three types of vacuum circuit control valves that are more widely used. Electromagnetic vacuum belt type inflation valve: The electromagnetic vacuum charging valve is a solenoid valve type control valve, which is mainly used for low-pressure vacuum plasma machines. The vacuum pump is turned on as the operating parameters change. Its working principle is: when the vacuum pump starts running, the electromagnetic vacuum belt inflation valve is opened and the vacuum pump is closed. At this time, the valve coil is de-energized and the valve is closed by mechanical force to prevent the oil and gas in the vacuum pump from being affected by the negative pressure in the vacuum chamber. Suck backwards. Electromagnetic vacuum charging valve has the advantages of easy installation, but poor stability. If used for a long time, the magnetic force of the valve will decrease, and the return spring is also prone to slow response. At present, this kind of control valve is mostly used for experimental low-pressure vacuum plasma equipment. The above are two control valves for vacuum plasma control of low-pressure vacuum plasma machines. If you want to know more details about low-pressure vacuum plasma machines or have questions about the use of plasma processing equipment, please click Chengfeng Zhizhi Online Customer Service Consultation, Chengfeng Zhizao is waiting for your call!

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How to choose a better pipeline for conveying external gas from plasma vacuum plasma cleaner

How to choose a better pipeline for conveying external gas from plasma vacuum plasma cleaner

How to choose a better pipeline for conveying external gas from plasma vacuum plasma cleaner: The gas path is one of the basic components of plasma vacuum plasma cleaning machine gas path control and operation. If it is not selected properly, it will affect the effect of processing products and the service life of the equipment. Careful friends should be able to find that plasma vacuum plasma cleaning machine Almost all the external air pipes of the equipment are plastic air pipes. Why? In particular, what kind of material is better to choose? The air pipe of the plasma vacuum plasma cleaning machine for air path control and operation can be divided into two types: outer air pipe and inner air pipe. Of course, the outer air pipe is mainly responsible for the transportation of the outer air pipe, and the air pipes selected are generally made of plastic materials. What are the advantages of choosing this plastic tubing? What are the specific classifications? There are two types of plastic tubing commonly used for the outer tube of plasma vacuum plasma cleaners, namely PU tubing and PTFE tubing. In the industrial field, most of them use PU tubing, especially pneumatic control. In the plasma vacuum plasma cleaning machine, the PU tube is mainly used for the gas tube for conveying general industrial gas, the gas tube in the cylinder, and the gas tube for the control components. The use of PU pipes for external pipes has the following advantages: 1. It has good bending resistance and a small bending angle, which is convenient for use in pipe laying operations; 2. PU pipe has good wear resistance, pressure resistance and fatigue resistance; 3. PU pipes are more beautiful, light and flexible; 4. PU pipes have high cost performance and price advantages. Another type of plastic gas pipeline is PTFE tube, that is, polytetrafluoroethylene tube. In addition to some of the characteristics of the above-mentioned PU tube, PTFE tube also has a significant feature, that is, it also has better corrosion resistance. When the gas transported is a process When the gas is corrosive, it is necessary to use a PTFE tube as an external gas pipeline. If you have a more detailed understanding of the plasma vacuum plasma cleaner or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao, and Chengfeng Zhizao is waiting for your call!

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Plasma cleaning equipment manufacturers explain to you: the factors that affect the adhesive strength of adhesives

Plasma cleaning equipment manufacturers explain to you: the factors that affect the adhesive strength of adhesives

Plasma cleaning equipment manufacturers explain to you: the factors that affect the adhesive strength of adhesives          The size of the bonding strength is related to the composition of the adhesive, the structure and properties of the adhesive, the performance of the adherend, the surface condition and the operation mode during use. Adhesive strength refers to the adhesive strength on the unit bonding surface. The bonding strength mainly includes the cohesive strength of the adhesive layer and the adhesive strength between the adhesive layer and the bonded surface. The plasma cleaning equipment manufacturer will explain to you below. Factors that affect the adhesive strength of the adhesive.Composition composite coating (refers to a sprayed layer composed of two or more different materials. The material composition of the composite coating changes stepwise in the thickness direction of the composite coating. It is called a stepped composite coating. Plasma cleaning equipment is used and various surface treatment technologies are used. Combined application to improve the protective ability of the coating to the substrate) After the bonding material and curing agent are determined, the cold welding bonding strength is mainly related to the powder addition amount, curing agent addition amount, and toughening agent addition amount in its components. In addition, , The construction process and the substrate material, surface roughness and cleanliness also have a greater impact on the cold welding bond strength. (1) The influence of the amount of powder added Appropriate addition of powder fillers can reduce the shrinkage of the coating and eliminate internal defects, thus improving the bonding strength of the coating. However, the increase in the amount of powder will reduce the adhesive material in the coating and reduce the bonding strength. (2) The influence of the amount of curing agent added Insufficient curing agent is added, and curing is incomplete; if the curing agent is added too much, the brittleness of the coating will increase, and the residual curing agent will reduce the performance of the coating. Therefore, it is necessary to accurately calculate the amount of curing agent when developing cold welding composite materials. The curing agent has been prepared in proportion when the composite coating is sold. The user can calculate and weigh and add according to the proportion specified in the product manual, without the need for tedious calculations. (3) The influence of other factors Appropriate addition of coupling agents can improve the bonding strength; the addition of defoamers, anti-aging agents, and accelerators can only reduce the bonding strength, so the use must be strictly controlled. In addition, a certain degree of roughness and necessary cleanliness on the surface of the workpiece can improve the bonding strength; on the contrary, the surface with oil stains and rust will seriously reduce the bonding strength and even cause failure. Therefore, in order to improve the bonding strength, the following points must be paid attention to. ① The rough surface has a larger actual bonding area, which is beneficial to improve the bonding strength. Therefore, the bonding surface is better processed into a tooth-shaped surface. ② The proportion of the curing agent of the adhesive must be accurate, that is, it must be strictly weighed according to the proportion specified in the product manual. Too much or too little will affect the bonding strength. ③ The two components of the adhesive A and B must be mixed thoroughly, and the colors should be consistent. ④ The surface of the base metal must be as clean as possible, and there must be no oil stains and rust stains. ⑤ The ambient temperature during construction is better than 10°C, and the construction is not suitable if the ambient temperature is below 5°C. ⑥ During construction, the bottom layer must be repeatedly scraped to make the adhesive and the surface of the substrate fully wetted. ⑦ The curing reaction of industrial adhesives is relatively slow at room temperature. In order to improve the bonding strength and accelerate the curing reaction, the curing temperature can be increased. If possible, the curing can be used at 60~80~C, and the coating can be completely cured in 4~6 hours. The bonding strength between the cured coating and the substrate is gradually improved, and the bonding strength often continues to increase after being put into use. Chengfeng Zhizao plasma cleaning equipment manufacturers focus on plasma technology research and development and manufacturing. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the Chengfeng Zhizao online customer service. Chengfeng Zhizao is waiting for your call!

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