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Introduction to the functional cleaning principle of plasma vacuum plasma cleaning machine plasma surface treatment equipment

Introduction to the functional cleaning principle of plasma vacuum plasma cleaning machine plasma surface treatment equipment

Introduction to the functional cleaning principle of plasma vacuum plasma cleaning machine plasma surface treatment equipment: Plasma vacuum plasma cleaners can increase surface energy by changing the surface of materials, bonding, printing and wetting. At the same time, plasma waterproof coating products can also be provided. In fact, almost any material can be plasma treated. The pollutants treated by plasma surface treatment equipment are generally invisible and belong to the nanometer scale. These contaminants affect the ability of objects to interact with other substances such as glue or ink. The surface of an object is treated with plasma to remove organic matter. Plasma surface treatment equipment can improve adhesive or solder adhesion and print reliability. This process is suitable for bright plastic and rubber, and can be directly printed and bonded after impurities are removed. Plasma vacuum plasma cleaning machine can be widely used in the surface activation modification of materials to improve its bonding properties. The following introduces the cleaning principle of plasma vacuum plasma cleaning machine: 1. The cleaned workpiece is sent into the cavity of the vacuum plasma cleaning machine and fixed, the operating device is started, and the exhaust is started, so that the vacuum degree of the vacuum chamber reaches the standard 10 Pa, and the general discharge time is about tens of seconds. Any method of surface modification without chemical treatment of plasma is called dry etching. During the plasma etching process, all plasma cleaned products are dry etched. Plasma etching is similar to plasma cleaning. Plasma etching is used to remove impurities from the treated surface layer. 2. Introduce the gas passed through the plasma vacuum plasma cleaner into the vacuum chamber, and keep the inner cavity pressure stable. Depending on the cleaning material, oxygen, argon, hydrogen, nitrogen, carbon tetrafluoride and other gases can be used respectively. Oxygen-plasma treatment is one of the commonly used dry etching methods. Oxygen (sometimes mixed with argon) is used to treat aluminum, stainless steel, glass, plastic and ceramic surfaces. 3. The high-frequency voltage is applied between the electrodes in the vacuum chamber and the grounding equipment of the plasma vacuum plasma cleaning machine, so that the gas is broken down, and a glow discharge occurs to generate plasma, and the treated workpiece completely covers the plasma generated in the vacuum chamber. Start the cleaning operation. Generally, the duration of the cleaning process varies from tens of seconds to several minutes. Etchers allow plasma to etch printed circuit boards, giving them better bonding properties such as adhesion and decoration. 4. After the cleaning is completed, cut off the power supply, and discharge the gas and vaporize the dirt through the vacuum pump. Several functions commonly used in plasma surface treatment equipment: 1. Activating metal: Although the metal is activated, the activation process of plasma surface treatment equipment is very unstable, so the effective time is very short. For example, after the metal is activated, subsequent treatments (bonding, painting, etc.) must be completed within minutes or hours, otherwise the surface will quickly combine with dirt from the surrounding air. 2. Activated modified plastics: Plastics such as polypropylene and PE are all non-polar structures. That said, these plastics must be pretreated before painting and bonding. Dry oil-free compressed air is often used as process gas. Through the effect test, the workpiece treated and untreated by the plasma surface treatment equipment can be immersed in water (polar solution), and the activation effect is impressive. For the untreated portion, water droplets of normal shape are formed. The machined part of the machined part will be fully saturated with water. 3. Glass and ceramics can also work: Glass and ceramic bottles have similar properties to metals, have a short effective time, and usually use compressed air as the process gas. Enhance its ability to print or bond. The purpose of plasma surface treatment equipment cleaning is to remove surface organic contaminants. Plasma treatment of product surfaces, using adhesives or printing inks. Often used to surface modify Teflon or plastic plasma, it can actually change the surface of the material so that it retains free radicals and binds with glue or ink.

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The RF plasma generator has the effect of concentrating the plasma on the double-substrate stage structure

The RF plasma generator has the effect of concentrating the plasma on the double-substrate stage structure

The RF plasma generator has the effect of concentrating the plasma on the double-substrate stage structure: Diamond has physical and chemical properties such as high hardness, thermal conductivity, chemical stability, and optical transmittance. These excellent properties make diamond an ideal material in many fields. For example, it can be used as an electron beam extraction window, a high-frequency high-power electronic device, a highly sensitive surface acoustic wave filter, a cutting tool, and the like. At the beginning of the preparation of diamond by the plasma chemical vapor deposition (MPCVD) method of the radio frequency plasma generator, the advantages of the MPCVD method for preparing the diamond became very obvious. The high-end diamonds in the world are basically prepared by the MPCVD method. In contrast, the MPCVD method has become an ideal method for growing diamond due to its advantages of non-polar discharge, fast growth rate, and less diamond impurities. In recent years, MPCVD technology has made great progress, and the research on the influence of diamond deposition process parameters has become mature, but the research on the resonant cavity of MPCVD device needs to be further studied. The microwave resonator is the core component of the MPCVD device. Different structures of the microwave resonator of the RF plasma generator will affect the intensity and distribution of the electric field, thereby affecting the plasma state, and correspondingly affecting the quality and rate of diamond deposition. The structural study of the microwave resonator of MPCVD device is valuable for diamond growth. Commonly used MPCVD method for diamond growth resonators are stainless steel resonator type and quartz bell type, quartz bell type is conducive to the growth of large-area diamond film, but the rate is slow and easy to contaminate the quartz tube, while the stainless steel resonator type equipment has the ability to grow. Features of fast speed. The use of cylindrical resonant cavity MPCVD equipment can increase the plasma density by increasing the deposition pressure, and realize the rapid growth of diamond films on the substrate table. The purpose of enhancing the power density is achieved by changing the position of the quartz tube, the structure of the cavity, and the flexibility of the tuning board. The quartz tube is arranged under the deposition table, and the moving range of the tuning plate and the tuning piston in the resonant cavity is increased to achieve the purpose of reducing plasma pollution and increasing the deposition rate. The relative spectral line intensity of the groups in the plasma of the RF plasma generator can reflect the degree of dissociation of the gas, and is also an important factor for the deposition rate and quality of diamond. The upper substrate stage is used as the tip in the microwave electromagnetic field. The ions move violently and continuously collide with other particles, increasing the density of the plasma. The high H spectral line intensity indicates that the plasma can generate a higher concentration of H radicals under the dual-substrate structure, and the H radicals can etch non-diamond phases such as sp'C and graphite, and improve the quality of the deposited diamond. Compared with the dual-substrate structure, the group strengths at each position under the single-substrate stage are very close, indicating that the dual-substrate stage structure has the effect of agglomerating plasma, which can make each group move closer to the range of the substrate stage. The uniformity is good in the range of the wafer stage, while the uniformity outside the range of the substrate stage is poor, and the agglomeration effect of a single substrate stage on the plasma is weaker, and the plasma is more divergent. In addition, under the double-substrate structure, with the increase of methane concentration, the intensity of C2 groups increases more significantly, which can effectively improve the deposition rate of diamond; under the double-substrate structure, the plasma electron temperature of the RF plasma generator is lower, and the internal particles The collisions are more violent, and the electron temperature decreases as the pressure rises.

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Plasma surface treatment equipment treatment technology solves the difficulty of bonding and stripping in the automotive mobile phone industry

Plasma surface treatment equipment treatment technology solves the difficulty of bonding and stripping in the automotive mobile phone industry

Plasma surface treatment equipment treatment technology solves the difficulty of bonding and stripping in the automotive mobile phone industry: Due to the low surface tension of most plastics, many designs in the past used alternative materials. As long as the surface can meet the process requirements of spraying or bonding after being treated by plasma surface treatment equipment, this material is preferred. In recent years, cost and material performance have increasingly become dominant factors in product design, prompting automakers to focus on more plastic varieties. At present, PP, PC, ABS, SMC, various elastomers and various composite materials are widely used in automobile manufacturing. This not only solves the problem of bonding between parts of the same material, but also solves the problem of bonding between parts of different materials, making it difficult for the previous traditional processing methods to meet the requirements of this processing technology. Mobile phones are also one of the indispensable tools in modern life. However, the troublesome thing is that after using the mobile phone for a period of time, it is found that the casing will peel off, wear, or the logo will become more and more clear, which seriously affects the appearance of the mobile phone. The use of plasma surface treatment machine technology has helped mobile phone manufacturers completely solve the above problems. It can be said that plasma surface treatment equipment is a new environmental protection technology on the market, which completely replaces the traditional method of relying on chemicals to surface treatment mobile phone casings. As far as the surface treatment effect is concerned, among the various surface treatment methods at present, the fluorination treatment effect is good, and the bonding ability of the material can be obtained. But this method produces a lot of harmful gases, and the emissions bill is out of reach for most automakers. It is gratifying that the emergence of plasma surface treatment technology has brought new changes to the plastics industry. The whole process can be completed in a short time. The equipment is simple, the operation and maintenance are convenient, only a small amount of gas can replace the expensive detergent, and there is no need to deal with the waste liquid. It can penetrate deep into pores and depressions to complete cleaning tasks. Plasma surface treatment technology can realize the treatment of most solid substances, so its application range is very wide. The mobile phone car shell made by the surface treatment technology of the plasma surface treatment equipment has better wear resistance after being treated by the equipment, which can ensure that the paint will not peel off or grind the paint after long-term use. The use of plasma surface treatment machine technology can clean the residual dust, impurities and oil in the production process. Larger process scale can improve the surface activity of plastics, make the coating film effect very uniform, and the coating film bonding effect is better. Layer connections are stronger.

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The plasma surface treatment device improves the specific properties of the surface of the PTFE material for lithium batteries

The plasma surface treatment device improves the specific properties of the surface of the PTFE material for lithium batteries

The plasma surface treatment device improves the specific properties of the surface of the PTFE material for lithium batteries: The electric lithium battery is a commonly used lithium battery, which is driven by the display of the pneumatic tool. It is a clean and environmentally friendly power supply. At present, it has been widely used in pure electric vehicles, electric trains, electric vehicles and other fields. In recent years, with the rise of the new energy vehicle sales market, the safety and reliability of power lithium batteries has become a focus of attention and discussion. This is not only because the power lithium battery is a key component in the power drive system software, but also because the power lithium battery production process itself has high reliability and reliability requirements. For example, for lithium batteries for automobiles, what role can the plasma surface treatment device play in the production and manufacture of power lithium batteries? How can I help? When the plasma etching temperature is low, the etched object is transformed into the gas phase. A mechanical pump is used to discharge the excess product, and the surface is continuously covered with fresh gas, so that the corroded part is not covered by the material (for example, chromium is used as a covering material in the industrial production of semiconductor materials). Plasma methods can also be used to corrode plastic surfaces, ashing these compounds. It is very necessary to use advanced technologies such as POM, PPS and PTFE to corrode printed adhesive packaging. The low temperature plasma surface treatment machine device can greatly increase the wet area and improve the bonding ability of the material surface. In the production process of automotive power lithium batteries, the surface treatment of plasma surface treatment equipment is usually carried out from three aspects, namely, improving the lubricating properties of the ceramic film before coating the positive and negative plates; cleaning the connecting piece before lithium welding; Improve the surface adhesion of insulating plates, end plates, PET plastic films and other metal composite materials and their insulating materials before gluing them and their lithium battery components. Next, I'll give a brief summary of this and go into detail one by one. Based on the positive and battery cathode materials of the ceramic film, the positive and negative stages of the automotive power lithium battery were prepared. Compared with cleaning with aqueous solutions such as ethanol, the plasma surface treatment device not only does not destroy the raw materials, but also can remove organic substances on the surface of the raw materials, improve the lubricity of the film surface, improve the uniformity of the coating, and improve the heat resistance and safety of the coating. coefficient. Plastics, laminated glass and ceramics are often used in daily necessities due to their excellent properties and low prices. Fluoroplastic materials have important application prospects in some special industries due to their excellent organic chemical properties, excellent dielectric properties, extremely low frictional resistance and bearing self-lubrication. However, during the entire release process of this material, it is difficult to avoid the problem of weak adhesion between the same material or between the same material. To this end, we discuss the reasons for the non-bonding of such non-bonding polymers and the surface solutions. Plasma surface conditioner units are not prone to damage to samples. In addition, all surface problems can be solved very uniformly, and harmful substances are not easily generated. Hollow products can also be processed, which is environmentally friendly, requires less indoor space during work, and has low cost. The actual effect can be solved by simple plasma identification according to the hydrophilicity, and the problem of whether the surface of the sample is completely soaked can be solved. The lithium tab actually refers to the correct guide of the metal material strip between the positive and negative electrodes of the rechargeable battery. It is a point-contact type when charging and discharging. Whether the surface of the bonding plate is clean or not directly affects the reliability and performance of electrical bonding. Using a plasma surface treatment device before electric welding can remove the residual organic matter and particles on the surface of the welding seam, making the surface of the welding seam uneven, thereby improving the welding quality. The two gases are brought together so that they enter the reaction chamber during the smearing process, where they polymerize in a plasma environment. The cleaning method used is more stringent than plasma surface cleaning. The coating is easy to maintain and only 1 micron. General criteria include waterborne coatings similar to PTFE material coatings designed to avoid crossover with th

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Research on friction-improving fusion wear properties of plasma sprayed molybdenum-based alloy coatings

Research on friction-improving fusion wear properties of plasma sprayed molybdenum-based alloy coatings

Research on friction-improving fusion wear properties of plasma sprayed molybdenum-based alloy coatings: In mechanical composite components, as long as there is movement, there will inevitably be friction and wear problems between matching parts. Due to the difference in the working conditions of the friction pair and the complexity of the working conditions, the consequences lead to the intricate damage process of the friction surface, and there are many forms of damage. Surface damage caused by friction, a form of wear, can be roughly divided into fusion wear, abrasive wear, corrosion wear, and contact fatigue wear. Because of the fusion wear, most of the wear occurs in the initial running-in process of the friction pair, and its occurrence often destroys the working surface of the matching parts, making the entire unit unable to operate normally. Therefore, in all forms of wear, the damage it brings is particularly prominent. In the mechanical movement, the working conditions of fusion wear of the friction pair are as follows: 1. When there is lubricating oil, the cylinder liner and piston ring in the diesel engine work under the condition of lubricating oil. Due to the use of supercharging technology, the power of the diesel engine is improved, so the heat of the cylinder liner and the piston ring is increased. The load and mechanical load also increase, so the phenomenon of "pulling the cylinder" and the fusion and wear of the piston ring continue to occur. 2. The piston rod in the reciprocating cycle compressor that appears in the working conditions without direct oil supply and lubrication, it not only needs to transmit power, but also bear the seal, and it works without direct oil supply and lubrication, so it is extremely Easy to produce fusion wear. There are many factors that cause friction pair wear, and providing good lubrication conditions is an important factor in reducing wear. Theoretically speaking, under the protection of continuous oil film or grinding medium, the pair of parts that make up the friction pair will hardly wear out. However, under actual working conditions, this is often difficult to achieve due to the combined influence of various factors. Therefore, if the lubricating film is destroyed, the matching parts will be in contact with each other between metals. At this time, under the working conditions of high speed, high temperature and high pressure, extremely high frictional heat is generated in the tiny area of ​​the contact part instantly, which makes the contact between the materials. Melt adhesion occurs to form a source of failure. At the same time, under the high-speed movement of the parts, the source of damage expands, and the adhesive part is torn or peeled off in the form of cracked fragments, and embedded between the friction pairs. These hard particles form a cutting action between the two sliding surfaces, which destroys the friction surface and causes fusion wear. This process resulting from fusion wear is, in short, "severe damage characterized by localized fusion of two sliding surfaces". Therefore, an effective way to improve fusion wear must meet the following conditions: 1. Make the friction surface have unique oil storage characteristics to make up for the lack of lubricating oil before the critical lubrication state occurs and avoid the emergence of the critical lubrication state. 2. Improve the high temperature resistance of the working surface of the parts and avoid the influence of instantaneous frictional heat. The sub-alloyed molybdenum-based alloy coating obtained by the plasma spraying process is one of the effective ways to solve the fusion wear in the above-mentioned mechanism. In addition to solid, liquid, and gaseous states, plasma is called the fourth state of matter. It is a special "gas" composed of positive and negative charged particles in a certain proportion by ionization of a certain gas under the action of an electric field. Due to mechanical compression, magnetic shrinkage and thermal shrinkage, the plasma energy is highly concentrated. Because the spraying is mainly based on powder materials, various sub-alloy coatings with different performance requirements can be prepared through the mixing ratio of different powder materials. Plasma spraying technology has become a versatile surface treatment process and is increasingly used to prepare surface coatings for wear resistance, scratch resistance, electrical conduction, thermal insulation, insulation, corrosion protection and other special purposes. Generally, inert gas argon or supplemented with argon, nitrogen or helium is used. This facilitates plasma technology to guarantee specific properties of the coating material. In addition, since the base material will not be directly heated during spraying, problems such as deformation caused by the heating of the workpiece are also avoided.

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The plasma cleaning technology of low temperature plasma surface treatment equipment is in line with the application in the field of materials

The plasma cleaning technology of low temperature plasma surface treatment equipment is in line with the application in the field of materials

The plasma cleaning technology of low temperature plasma surface treatment equipment is in line with the application in the field of materials: Since the advent of plasma cleaning technology, with the rapid development of electronics and other industries, its application range has gradually expanded, and it is used for activation etching and plasma cleaning to improve the bonding performance of adhesives. At present, plasma cleaning technology has been widely used in the semiconductor and optoelectronic industries. The main application fields include low-temperature plasma surface treatment equipment such as integrated circuits, semiconductors, and medical treatment. It is mainly composed of plasma generators, gas pipelines and low-temperature plasma nozzles. When the arc discharges, the plasma generator generates high-voltage and high-frequency kinetic energy, and thus the plasma is generated. This plasma technology is excited and controlled in the nozzle, through which the gas, such as air, is sprayed onto the surface of the material. When plasma technology comes into contact with the surface of a material, physical changes and chemical reactions occur. The treated surface has formed a high-density chemical cross-linked layer, or has the effect of promoting the adhesion of various architectural coatings due to the introduction of methyl and carboxyl groups, and has been promoted in coating adhesion and application. Using plasma technology to treat the surface can also get a very thin tough coating, so that the surface has good adhesion, coating and printing properties. The addition of functional components can improve adhesion without other industrial auxiliary equipment. Low temperature plasma surface treatment equipment is suitable for daily necessities and electronic products, furniture surface treatment, surface treatment before printing, hard coating, and no paint peeling after printing. The use of low-temperature plasma surface treatment equipment to modify the metal surface layer can improve the corrosion resistance of the metal surface, improve the bonding performance of the metal surface, and improve the strength and wear resistance of metal materials; surface treatment of vulcanized rubber and plastic industries; Treat the laminated glass to make it more waterproof, and can print, glue, glue and other sound insulation and noise reduction; bond glass fiber reinforced plastic products for pretreatment and other ionization; laboratory cell culture dishes are used for hydrophilic, bonding Sexual treatment, the cells can be uniform after generation; the display is crimped for pretreatment, the circuit board on the LCD soft film is surface treated, and the hard part is bonded for pretreatment to ensure the firm bonding of the mobile phone case and the notebook case. The frame of the mobile phone and the notebook computer is not easy to fall off when the paint is painted, the shell is glued together, the paint of the shell is not easy to fall off, and the text is not easy to fade. The use of plasma cleaning technology can effectively avoid the damage of chemical solvents to the properties of the material. When cleaning the surface of the material, a variety of active functional groups can be introduced to increase the surface roughness of the fiber, improve the surface free energy of the fiber, and effectively strengthen the resin and the resin. Binding of fibers. The comprehensive properties of composite materials are improved by the bonding between fiber interfaces. The research results show that the use of plasma cleaning technology can effectively improve the interlaminar shear strength of aramid fibers under appropriate conditions, and can significantly improve the interfacial properties of the resin. The low-temperature plasma pretreatment technology is used to carry out surface printing treatment on the printing in the plastic surface treatment tube, beverage bottle caps, and skin care product packaging bottles, surface bonding treatment for small toys, and bonding treatment for shoe uppers to ensure that the super glue does not open. , using low-temperature plasma surface treatment equipment for the printing and dyeing industry. As a biotechnology medical catheter, the application of low temperature plasma surface treatment machine in medical equipment makes the combination after surface treatment more closely. The surface treatment of artificial organ materials can take into account the hydrophilicity of compatible medical consumables. Disinfection and sterilization of medical machinery. In view of the unsatisfactory effect of resin on fiber impregnation in the LCM process, there are holes in the product and surface dry spots, etc., plasma cleaning technology can be considered to improve the physical and chemical properties of the fiber surface and improve the surface quality of preformed fibers. Using the same process conditions (pressure field, temperature field, etc.), the resin can more fu

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