Corona (electronic, corona) refers to the surface of the charged body in the gas or liquid medium of the localized discharge, often occurring around the high-voltage conductor and the tip of the charged body near the production of ozone, nitrogen oxide and other substances. In 110kV in the above substations and lines, often appear with the corona similar to the light layer, issued by snorting, sire sound. Corona can consume electrical energy and interfere with radio waves. Corona is a stable discharge in the form of a unique electron collapse flow injection in the electric field.
Corona Roller
Corona is produced by the generation of an extremely uneven electric field from an unsmooth conductor. When the voltage is increased to a certain value, corona occurs due to air freeing. As the corona outside the corona corona rod, corona rod of the surrounding electric field is very weak, no collision free, corona outside the charged particles are basically electric ions, the formation of corona discharge current. Simply put, the radius of curvature of the conductor electrode with a small radius of curvature to air discharge will produce corona.
Corona Roller
Most plastic films (such as polycarbonate films) are non-polar polymers with low surface tension, generally 29-30mN/m. Theoretically, if the surface tension of the object is lower than 33mN/m, the currently known inks and adhesives can not be firmly adhered to it, so it is necessary to corona its surface. The principle of treatment is to apply high-frequency and high-voltage electricity to the treatment equipment, so that it produces high-frequency and high-voltage discharge, which generates fine and dense purple-blue sparks. Under the action of strong electric field, various ions produced by air ionization accelerate and impact the plastic film in the treatment device. The chemical bonds of the plastic molecules are broken and degraded, increasing the surface roughness and surface area. A large amount of ozone is generated during discharge. Ozone is a strong oxidizing agent that oxidizes plastic molecules, generating polar groups such as bases and peroxides, thereby increasing their surface energy.
Precautions for using corona treatment machine
1. The discharge electrode is not in place and cannot be started.
2. The corona roller is below the set speed and cannot start.
3. The film-breaking signal is abnormal and the discharge rack cannot be closed, let alone started. During normal operation, once the film is broken, the machine can be automatically shut down, alarmed and opened to open the electrode.
Hefeng Machinery Group focuses on the development and application of surface treatment industry for more than 20 years, corona machine, corona treatment machine, plasma machine, static generator, static eliminator, dust removal machine, UV curing, UV power supply, electronic UV, UV light box, plasma treatment system, vacuum plasma, spark machine, plasma treatment, flame treatment machine, electronic spark machine, EDM impact machine, surface treatment machine, polymer Surface Flowering Machine, UV lamp, UV transformer, and so on. It is a national high-tech enterprise integrating R&D, production and sales.
Our core competitiveness comes from the fact that we never stop launching new products and designing molds, and vigorously investing in the research and development of new products, it is this guiding principle that makes us different, which also enables us to become a real solution-oriented company in the industry. From the design of the solution to the final inspection of the equipment, we pay meticulous attention to every detail to ensure that the quality of our products and customer service meets the highest standards, and with our highly qualified service team and experienced technicians, we have gained an international reputation as a solid and reliable partner.
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