Application of low temperature plasma generator in industry

• Categories:Industry News
• Author:plasma cleaning machine-surface treatment equipment-CRF plasma machine-Sing Fung Intelligent Manufacturing
• Origin:
• Time of issue:2021-06-10
• Views:

(Summary description)        The principle of surface treatment of atmospheric jet low-temperature plasma generator: The air flow of the cold arc plasma jet gun can produce oxygen-based active substances containing a large number of oxygen atoms. These oxygen atoms can be sprayed on the surface of the material to separate the adhered to the surface of the material. The organic pollutant element C can be converted into carbon dioxide and then removed; at the same time, it can improve the contact performance, thereby increasing the strength and reliability of the connection.Industrial low temperature plasma generator         Industrial applications of low-temperature plasma generator surface treatment technology:         (a) Pre-welding treatment Stainless steel sheet butt welding is widely used in industry. For example, the inner barrel of a solar water heater is made of 0.4mm stainless steel sheet rolled into a cylindrical shape and welded. In order to meet the welding requirements, the welding part must be cleaned. The current cleaning method is a wet method, which uses a chemical cleaning agent to scrub manually. The cleaning cost is high, the pollution is large, and it is difficult to realize automation. Low-temperature plasma generator cleaning technology is a dry cleaning technology, applied to the pre-treatment of thin plate butt welding, which can replace traditional manual chemical cleaning agents, reduce cleaning costs, improve welding quality, reduce environmental pollution, and realize welding areas Automation of cleaning. (b) Surface treatment of plastic sheets, such as wood plastic, is a new type of material that can replace wood, but the surface coating is very difficult, which greatly limits its scope of application. If chemical treatment is used, the cost is high and the pollution is large. Therefore, using low-temperature plasma air jet treatment, the surface of the material will change significantly: the color is slightly lighter, the reflectance is reduced, and the surface is in a matte state; the surface is slightly rough when touched by hand; the adhesion performance of the spray paint is greatly improved improve. The bonding force before and after plasma treatment can be tested. Test method: Use a scraper to make a scratch on the surface of the part to be tested, and use a soft brush to scrape off the debris on the surface. Use scotch tape to stick the markings, there should be no air bubbles between the tape and the sample, keep it for 1 to 2 minutes, and tear the tape at a constant speed of 60 degrees. Judge the bond strength by observing the integrity of the scribe line and the square.         In our daily life, such as door seals on cars, we often use rubber processed products. The surface should be painted or woven. If there is no plasma treatment with a low-temperature plasma generator, adhesion is not easy. If chemical cleaning is used, it will be offline and pollute the environment. The ideal solution is to use online plasma treatment.         (d) Plasma jet for glass and metal plates can treat glass and metal surfaces, not only can effectively remove organic pollutants from floating dust in the atmosphere, but also can change the surface properties to make it last long enough. Thereby improving the joint strength of the product. In addition, atmospheric pressure plasma cleaning can be applied to the surface of organic and metallic materials.         Plasma refers to a gas that is partially or completely ionized, and the sum of the positive and negative charges of free electrons and ions is completely offset, and it appears as neutral electricity on a macroscopic scale. Plasma, also called plasma, is an ionized gaseous substance. It is composed of atoms deprived of some electrons and positive and negative electrons generated after atoms are ionized. It exists widely in the universe. It is usually considered to remove solids and liquids. In addition to qi, the fourth state of matter existence.         Low-temperature plasma generators are mainly used for surface modification treatment of various materials: surface cleaning, surface activation, surface corrosion, surface grafting, surface deposition, surface polymerization and plasma-assisted chemical vapor deposition.         After being processed by a special metal low-temperature plasma generator, the surface morphology of the material undergoes microscopic changes. After the metal material is processed by Dyne’s low-temperature plasma surface processor, the bonding force of the material surface reaches 80 dynes or more, which can meet various bonding, Spraying, printing and other processes can achieve the effect of removing static electricity at the same time.