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Plasma surface treatment of automobile materials in automobile plasma processor

Plasma surface treatment of automobile materials in automobile plasma processor

Plasma surface treatment of automotive materials in automotive plasma processors:         Application of automotive plasma processor to surface treatment of automotive materials can not only improve the bonding quality, but also after plasma cleaning, the surface of the material will also obtain new characteristics, so that the general material can obtain better surface processing performance.         After plasma surface treatment, the surface of the material gets new characteristics, so that ordinary materials get the surface processing performance that the original special materials have. In addition, the plasma cleaning effect eliminates the need for solvent cleaning, which is environmentally friendly and saves cleaning and drying time. Automotive plasma processor         Automobiles have higher and higher requirements for sealing materials, and the demand for sealing rubber strips is also increasing. New technologies and new materials continue to appear, so processing technologies will become more and more complex. In recent years, with the continuous development and maturity of thermoplastic elastomer technology, new thermoplastic elastomer materials such as TPO and TPV have been used more and more widely in automotive sealing strips. The material combines the excellent properties of elastomers and plastics, which is convenient for processing and recyclable, and is gradually replacing EPDM products. The ordinary door seal is composed of a co-extruded solid core bracket and a sponge rubber tube seal. The sponge part has a sealing function after being compressed by the car body door frame. However, when driving at high speed, the external air pressure may exceed the great sealing force provided by the sponge body, resulting in sealing failure.         In order to solve this problem, some companies have designed a new type of sealing profile to introduce magnetic rubber into the sponge body, that is, apply a magnetic coating on the sponge body or add magnetic moldings to directly magnetically attract the metal frame of the fuselage. Thereby increasing the sealing performance of the sponge body. Because the surface tension of these automobile sealing rubber strip materials is very low, when using flannel, flocking, PU, ​​silica gel and other coating processes, the materials are not easy to bond. In the past, manual segmented grinding processes were used to increase the surface roughness of the rubber strips. Applying primer again, the polishing process is time-consuming and labor-intensive, and the production efficiency is low. It cannot cooperate with the extrusion equipment for online processing, which is likely to cause secondary pollution, high cost, and low product qualification rate. Nevertheless, with the continuous improvement of product requirements, its grinding process has been unable to meet the requirements of the Ministry and European standards for automobile production.         Plasma processor is used for the surface treatment of automotive sealant strips:         Low-temperature plasma processor plasma technology is used for surface treatment of various automobile sealing strips. After testing, the surface energy can reach >80dynes/cm. The process of polishing or coating polyester can be removed. No primer is required, and it can be extruded or pressed. The speed of the flocking machine realizes online processing, increases productivity, reduces costs, does not damage the surface of the tape, and meets the environmental protection requirements of coating water-soluble glue. Jet low-temperature plasma has been applied to the door frame sealing strip, door head, window guide groove, window edge, front and rear windshield, front and rear cover sealing strips of cars and automobiles.         After being treated by a plasma processor, the hydrophilicity of the glass is improved, and it is used in medical equipment, which is conducive to the adhesion and growth of cells. In the glass bottle labeling process, the plasma surface treatment machine is used for the pretreatment of the glass bottle body. Through the pretreatment, low-cost and environmentally friendly water-based glue can be used to seal the label.

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Plasma cleaning machine picture Plasma cleaning machine equipment performance parameter description

Plasma cleaning machine picture Plasma cleaning machine equipment performance parameter description

Plasma cleaning machine picture Plasma cleaning machine equipment performance parameter description:         In various product applications, the process advantages of plasma cleaning machine cleaning are: increased production speed, no open flame in the operation process, safe and effective, stable and reliable process, simple and effective process monitoring. Plasma cleaning machine pictures         Description of the host structure and performance parameters of the plasma cleaning machine equipment:         1. The main unit of the plasma cleaning machine is powered off in the OFF state, while the main unit is powered in the ON state.         The pneumatic control valve is locked.         2. Pressure indication:         Display the current working pressure value.         3. Power display:         Display device, display device operating status, provide power supply voltage, power supply current, real-time power and cumulative power consumption.         4. Power adjustment:         Through the potentiometer knob, the user can adjust the power of the plasma cleaner to obtain the appropriate power. (Slight adjustment, do not use excessive force, so as not to damage the potentiometer)         5. High voltage port:         Connect the high-voltage wire of the spray gun, cut off the power supply during operation, unscrew the cover and black nut during installation, and tighten the high-voltage wire end by hand.         6. Ground wire:         Connect the ground wire of the spray gun, cut off the power supply during operation, unscrew the nut during installation, press the ground wire, and tighten it.         7. Drive power         Provide 24V driving voltage for the rotary spray gun, pay attention to the position of the plug slot when installing, and tighten the outer nut after inserting it.         8. Air outlet:         It is connected with the air pipe of the spray gun to provide kinetic energy for the sprayed plasma cleaning machine.         9. Air inlet:         Required gas source gas pressure range: ≥0.3MPa If the gas source pressure exceeds 1Mpa (10Kg), a pressure limiting valve must be installed externally (different products are treated differently). Nitrogen can be used if there are special technical requirements. Or other specific gas, if there is no compressed gas, or the pressure is lower than 0.05Mpa (0.5Kg), the plasma cleaning machine will automatically stop working and give an alarm. Note: The gas source must be oil-free and water-free.         10. Control:         The host is used to control the interface of the plasma equipment, the control line is twisted pair, and the passive connection must be used when connecting.         11. Power supply port:         220V/380V input power supply. Note: The supporting power supply must be single-phase three-wire, that is, the reliable connection of the ground wire must be ensured. (Other machinery and equipment shells cannot simply be used as ground wires. If there is no reliable grounding circuit, it may cause equipment damage or electric shock.)

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Spectroscopic study of silicon dioxide film deposited by plasma treatment TEOS process

Spectroscopic study of silicon dioxide film deposited by plasma treatment TEOS process

Spectroscopic study of silicon dioxide film deposited by plasma plasma treatment TEOS process:         Silicon dioxide film is a kind of dielectric material with excellent performance. It has the advantages of stable dielectric performance, low dielectric loss, good moisture resistance, and good temperature coefficient. It has extremely stable chemical properties and electrical insulation. Therefore, silicon dioxide is widely used in integrated circuit technology. plasma plasma treatment         It is precisely because of the wide application of silicon dioxide films in integrated circuit technology that it is necessary to prepare silicon dioxide films with different characteristics, which means that various new film deposition technologies must be continuously developed. In recent years, the application of atmospheric plasma plasma processing technology in thin film deposition has attracted more and more attention. Compared with traditional deposition methods, it has no vacuum chamber constraints, convenient and flexible operation, and low operating costs. At the same time, it has a very low reaction temperature and will not cause thermal damage to the substrate.         Different processing purposes have different requirements for plasma plasma processing characteristics. In plasma chemical vapor deposition film processing, a high concentration of highly reactive free radical particles is required. This requires the plasma to have a sufficiently high electron and ion concentration, and a suitable electron temperature. At the same time, in order to obtain a uniformly deposited film with a larger area, the plasma is required to have sufficient spatial uniformity.         Spectroscopy is more and more widely used as a diagnostic method of plasma. Its advantages are not only that it will not affect the state of the plasma itself, but it also has selectivity to the composition, and it can also obtain time and space-resolved information. Spectral analysis is the spectrum obtained by using the light radiation of a substance. This analysis method can be used for substances that can emit light under the excitation of external energy. The number, intensity, shape, and width of the spectral lines emitted by the elements are closely related to the physical state and physical parameters of the substance, such as temperature, pressure, and particle density. Therefore, this test technique provides us with an effective method to analyze the plasma composition, content, temperature and microscopic motion mechanism.         Under normal circumstances, the PECVD technology that uses TEOS as the deposition source to deposit silicon dioxide films, it is generally believed that TBOS will undergo the following decomposition reaction: Si(OC2H)4(@)-SiO2(目 + 4C2H(2) + 2H2Og. TEOS in It is decomposed in the plasma to produce solid silicon dioxide and deposited on the substrate, while other decomposition products are gaseous and exhausted with the reaction exhaust gas.         The characteristic peaks of Si and C-H detected in the spectrum indicate that TEOS has indeed undergone a decomposition reaction in the plasma, producing silicon compounds and some hydrocarbons. This also reflects from the perspective of spectroscopy that silicon dioxide is the product of TEOS decomposed by plasma.         We found that the growth rate of silicon dioxide does increase with the increase of input power. They have excellent similarity, so in actual production, we can judge the change of the film growth rate by the intensity change of the characteristic peaks of Si and CH in the spectrum, and thus change the process parameters when depositing the film, so as to get us The required film deposition rate improves the quality of film formation.

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Wafer plasma cleaner can clean multi-chip contaminants

Wafer plasma cleaner can clean multi-chip contaminants

        The advanced applications of wafer-level packaging plasma processing in wafer-level packaging are increasing. As semiconductor device manufacturers further reduce the size and improve the reliability of packaged devices, plasma processing technology is obtained in higher-level wafer-level packaging. More and more applications. Chengfeng Zhizuo wafer plasma cleaning machine can handle a variety of sizes of wafers, large-capacity, automated processing. Wafer Plasma Cleaner         Sheet cleaning Plasma cleaning is a good method to eliminate contaminants generated during wafer-level equipment manufacturing or upstream assembly. In either case, cleaning products to remove fluorine, oxide or metal pollution will greatly improve the output, reliability and performance of integrated circuits.         Deslagging means that the amount of photoresist residue is still developing and processing. In plasma treatment, a small amount of resist is uniformly removed on the entire surface of the wafer before further processing. Wafer plasma cleaner plasma treatment can be used for batch stripping, materials include photoresist, oxide, nitride etching, and dielectric. The uniformity of the etching rate is greater than 97%, and 1 micron per minute can be achieved. Stripping and etching processes can be used for wafer-level packaging, MEMS manufacturing and disk drive processing. Plasma treatment of silicon wafer pretreatment removes pollutants and oxidation, improves bonding rate and reliability. In addition, the plasma also improves the adhesion between the passivation layers of the wafer for micro-roughness.         In UBM, the adhesion plasma treatment of BCB and UBM changes the morphology and wetting effect of the passivation layer of the wafer. Polymer materials, such as benzocyclobutene (BCB) and UBM, are redistributed in the dielectric layer of the wafer. Plasma treatment changes the shape of the initial passivation layer of the silicon wafer and enhances the wettability. The typical method of forming the redistribution layer by patterning the medium includes patterning the redistribution material of the medium using a typical photolithography method. Wafer plasma cleaning machine plasma cleaning is a viable alternative to dielectric patterning, and can avoid traditional wet processing.         Using the cleaning of the WLP holes, the wafers are assembled on the stacked chips, and residual products are often produced through the forming process. By optimizing the structure of the plasma, the through holes can be processed without damaging the surface of the wafer. Indentation plasma cleaning can improve indentation adhesion and increase indentation shear strength. By improving the uneven adhesion of the wafer surface, the plasma cleaner can significantly improve the uneven shear strength. The punch material includes different components of solder and gold nails.

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Plasma technology to modify the hydrophilicity of wool in low-temperature plasma treatment process

Plasma technology to modify the hydrophilicity of wool in low-temperature plasma treatment process

        The surface structure and surface physical and chemical properties of wool fibers are closely related to the printing performance of wool fabrics. The outer skin layer of the wool surface scales is rich in C21-based covalently bonded lipids, which makes the wool fibers have a hydrophobic surface, making it difficult for the printing paste to evenly wet, spread and penetrate. The secondary outer skin layer of the scales is rich in cystine, and the disulfide bonds of cystine are covalently cross-linked between the wool macromolecules to form a diffusion barrier for dye additives. Low temperature plasma treatment process Therefore, in order to obtain a printing effect with uniform block surface, clear pattern outline and high color yield, especially for digital inkjet printing of wool, the surface of wool fabric must be modified. ​The low-temperature plasma processing technology is a dry processing technology, which saves energy and has no environmental pollution. Compared with the wet treatment method, the low-temperature plasma technology can not only realize the effective modification of the surface of wool, but also has almost no influence on the body performance of the wool. ​​​​​​​ Most of the past methods used low-pressure plasma technology, which is an intermittent processing method, which consumes a lot of energy and requires a vacuum system, and the production cost for industrial applications is high. Dielectric Barrier Discharges (DBD) atmospheric pressure plasma does not require a vacuum system, and can realize continuous production with low cost and high efficiency. Industrialized application prospects are broad. ​​​​​​​ Plasma treatment modifies the surface of wool fabrics and improves the performance of digital printing on wool fabrics. The non-plasma-treated wool fiber has complete scales, smooth surface and sharp edges and corners. Cracks and dot-like deposits appeared on the surface of wool fibers treated by the low-temperature plasma treatment process, and the edges of the scales became blurred. With the prolongation of the treatment time, the fibrous scaly layer peeled off, and even apparently fell off. ​​​​​​​ The reason may be that during the plasma treatment process, the bombardment of the active particles on the surface of the fiber produces an etching effect, which leads to the degradation of some macromolecular substances (lipids and proteins) on the surface of the wool fiber. Low-molecular gas or fragments; after degradation, the part with larger molecular mass may contain active free radicals, which may react with the macromolecules on the surface of the fiber, and eventually be dispersed and deposited on the surface of the wool fiber. ​​​​​​​ The surface of wool fiber contains components such as CC, NC, OC, O=C and O=C-OH. After atmospheric pressure plasma treatment, the content of CC and NC decreases significantly, while O=C- The OH content increased more. This is because there are lipids with higher carbon content and a small amount of protein on the surface of wool fibers. The etching effect of high-energy particles in the plasma on the surface of wool causes some of the CC and amide bonds in the wool to be broken and converted into other small molecules. The substance may then be oxidized to carbon-containing polar groups, such as carboxyl groups, etc., thereby improving the hydrophilicity of the fabric. ​​​​​​​ The wettability of untreated wool fabrics is poor, mainly due to the lipids contained in the flakes on the surface of the wool, which give the wool fibers a certain degree of hydrophobicity. After the low-temperature plasma treatment process, the high-energy particles have an etching effect on the surface of the wool, so that the flake layer of the wool is destroyed, and the lipid substance on the surface is modified or removed. ​​​​​​​ After atmospheric pressure plasma treatment, the surface of the wool fabric introduces oxygen-containing polar groups, such as carboxyl groups, etc., so the water contact angle of the fabric is reduced, the wetting time is shortened, and the wool fabric is wetted Performance has been significantly improved. After the low-temperature plasma treatment process, the whiteness of the wool fabric remains basically unchanged, the breaking strength is obviously improved, and the breaking elongation is reduced. This is because the cortical layer in the wool fiber determines the strength of the fiber, and the plasma only produces etching and oxidative degradation on the surface layer of the scales, and does not damage the wool fiber body; on the other hand, the etching effect of the plasma will cause Micro cracks appear on the fiber surface, making the surface uneven, thereby increasing the surface roughness of the fiber, increasing the cohesive force between the yarns, resulting in an increase in the strength of the fabric and a decrease in the elongation at break. ​​​​​​​ The smaller the value of stiffness, smoothness and softness, th

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Plasma surface treatment equipment Plasma technology pretreatment in the transportation industry

Plasma surface treatment equipment Plasma technology pretreatment in the transportation industry

Plasma surface treatment equipment Plasma technology pretreatment in the transportation industry:         In aviation, aerospace and other manufacturing industries, plasma surface treatment equipment is used for activation treatment. Through atmospheric pressure plasma pretreatment, a new material combination can be created. Plasma technology can directly process a variety of materials for bonding. Plasma surface treatment equipment         Plasma technology can be used in the transportation industry to fully realize the possibility of its application. In the aerospace manufacturing industry, in the shipbuilding industry, due to the application of plasma technology, it can be directly pretreated in the dock. Integrating plasma surface treatment equipment technology into various manufacturing industries can realize the optimization of plasma technology, so as to achieve better structural integrity and durability, so that the structure of trucks and trailers can be activated before bonding to improve bonding effect.         Aviation industry: The use of materials has changed a lot. In the past, airplanes were made of aluminum alloy, but now these parts are mainly made of carbon fiber reinforced plastics. Moreover, all materials need plasma treatment. After plasma treatment by plasma surface treatment equipment, the stability of aircraft parts can be greatly improved. The bonding or spraying process before and after treatment is more reliable. With the cooperation of industrial robot technology, plasma treatment has achieved the right Selective online processing of oversized workpieces. Because of oversized workpieces, atmospheric pressure plasma cleaning is a viable option.         Shipbuilding industry: anti-corrosion, lightweight structure, and good heat insulation performance. These are the three severe technical tests facing the shipbuilding industry. Among them, plasma technology has brought a new choice to the shipbuilding industry. The use of plasma technology means that pretreatment can be achieved under atmospheric pressure, and it also means that the corresponding parts of the manufactured cargo ships and oil tankers can be plasma treated at the shipbuilding site, and the assembled parts can be pretreated for subsequent coating. Or coating for preparation. The application value of plasma surface treatment equipment in the shipbuilding industry: improved corrosion resistance, cost savings, simple process, can be used for large-area products, physical processes, and no chemical substances are used. Truck and trailer industry: At present, the body assembly requires the use of adhesives to ensure strong bonding strength, improve the durability of the adapter, and reduce production costs. As one of the consumer groups of structural adhesives, the automotive industry has high requirements for structural bonding, and this high requirement can only be achieved through reliable and reproducible pretreatment. In truck manufacturing, surface activation plasma treatment technology has successfully replaced traditional pretreatment methods such as mechanical polishing or non-environmental primer coating. Utilize the processing advantages of plasma technology in automobile manufacturing: clean process, efficient production, fully automatic process flow, and process monitoring function that meets QC specifications.         Motorcycle industry: Many spray parts will use fiber-reinforced plastics, such as guards, mudguards, etc. The traditional pretreatment process requires water washing, flame treatment, and top coating. Adopting plasma surface treatment equipment plasma technology can simplify the process steps, without water washing, plasma pretreatment can replace flame treatment, and can obtain higher surface tension without damaging the fiber structure, and no need to use primer. Using this method, relatively stable paint adhesion can be easily obtained, and the color can be uniformly painted. It has been confirmed that the plasma surface treatment equipment plasma activation treatment can greatly improve the stone-strike resistance of the sprayed parts.

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