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400-667-1898
400-667-1898
A brush coating
Brush coating method is using paintbrush and be in direct contact with the coated surface coating method, make the paint evenly wetting coating in the coated surfaces and the formation of the spine membrane. Brush coating method is the use of the most ancient, the most simple, suitable for painting of any shape of the object to be coated, after long-term application, has formed a set of traditional process technology. Therefore, even if the development of coating technology change rapidly today, brush is still one of the commonly used method.
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Knife coating
Scraping is the use of scraper, the putty or sticky coating applied to the coated surface of the coated method. Scraping is a method commonly used coating construction, mainly used for scraping putty, can also be used for scraping thick coating. Usually used for the surface modification of rugged, dressing was coated by other defects. Scrape the construction method of coating is simple, do not need a lot of investment, surface suitable for requirements of thick coating of peace, not suitable for thin coatings.
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Three roller coating
roller coating refers to the use of adhesive coating roller brush, roller brush paint by means of rolling will transfer to be coated on the surface of objects, forming a coating method of coating film. Roller brush coating applied to the surface of a wide peace, the coating efficiency high, is two times of brushing efficiency, but the painting of "the starting type" corner or edge is difficult. Usually used in ships, bridges, a variety of large-scale machinery and equipment and construction coating etc..
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Four,silk screen printing
Silk screen printing coating used in stationery, product packaging and road signs, signs etc.. The method is in the nylon net is coated photosensitive glue, and then close the screen pattern photosensitive film exposure, washing, and remove the non photosensitive cavity film portion. Screen dry . Screen dry and then brush a layer of hardening agent with protective film. The screen flat on the surface to be painted, surface operation will have been imprinted screen flat on the pre coating, with a hard rubber scraper scraping back and forth from one to two times, make the paint to penetrate below, can be obtained in the corresponding pattern and text painted surface.
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Five,spraying
The 1 air spraying method : is the simplest and most basic coating method, a coating method is used widely at present. The principle of air spraying method is the use of pressure between 0.2-0.5MPa compressed air flow ejected from the center hole of the spray gun and forms a zone of negative pressure in the front of the nozzle, containers of coatings is sucked into the negative pressure region and is discharged from the nozzle, quickly into the compressed air flow, the liquid gas phase abrupt diffusion coating being micronized, paint is paint mist like to fly and attached to the object to be coated surface, forming a continuous film.
2 high-pressure airless spraying is applied to high pressure through: paint, the paint spraying atomization into extremely small particles, spray paint jet to be coated on the surface of objects, forming a continuous film coating method. No promotion of the use of gas spraying increases the utilization of the coating, to reduce air pollution, improve the coating operation efficiency. With the progress of the times, airless spraying process and equipment development and improvement of the obvious, to meet the needs of a variety of painting, has been widely used in ships, containers, bridges, steel structures, buildings and all kinds of machinery industry, is currently one of the most widely used method of coating.
3 high pressure auxiliary gas spraying method : air spray paint loss, while the high pressure airless spraying quality is not ideal. High pressure auxiliary gas spraying device centralized airless spraying and air spray characteristics, reduces the high pressure without coating pressure gas spraying (below 5MPa), reduce the spraying speed of the jet, with a small amount of compressed air, help improve the atomization. The coating method of atomizing effect is good, high utilizing rate of the coating, paint decorative, coating applied to metal products, electrical products, vehicles, high-grade furniture and handicrafts.
4 electrostatic coating: a coating having high utilization rate, less pollution to the atmosphere, the coating operation efficiency etc.. With the development of the times, electrostatic coating equipment is improved obviously and the development, to meet the needs of a variety of painting, has been widely used in automobiles, agricultural machinery, household electrical appliances, daily hardware, steel furniture, electric tools and toys industry field, is one of the widely applied coating method.
5 aerosol pot spraying methodin the aerosol cans filled with paint and liquefied gas, press button, self pressure spray coating method using liquefied gas pressure. The common gas emission agent three Freon or two chloro two methyl fluoride etc.. This kind of method is suitable for household small articles and traffic vehicle repair, continuous production is not suitable for large area, coated fabric.
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Six, dip coating
Dip coating is one of the traditional painting method, this method has the advantages of simple equipment, flexible operation, suitable for the streamlined shape of the workpiece, no pit, no simple pocket paint, and with a deep groove, hole energy savings of more than paint coating, and is not easy to remove the object to be coated is not suitable for dip coating method.
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Seven, curtain coating
Curtain coating is the coating spraying or flowing over the surface of the workpiece to form lotus continued film coating method. For small batch object by manual operation, to be poured paint coated workpiece, commonly known as pouring paint method. Development of automatic production line, called the curtain coating. It is the improvement of the dip coating method, an increase of some device, suitable for high-volume assembly line production, is a kind of economic and efficient coating method. The principle of automatic curtain curtain coating is the coating stored in high slot, when the workpiece through the conveyor belt from the curtain through, the paint from slot nozzle slit in a curtain shape continue to pour in the coated workpiece, forming a uniform coating, coating flows back into the vessel through the pump to excess, high cell cycle use. The method is suitable for coating steel plate, plywood and plastic plate plate shape or strip material, easy batch automatic production line.
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Eight, extraction
Elongated along the direction of the workpiece to be coated with a level of being siphonessd coating method of painting called pumping coating method. The object to be coated by coating by pumping coating machine, apply to the pencil rod, umbrella, fishing rod and metal wires to be coated, easy to realize the continuous automatic coating.
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Nine, roller coating
Roller coating is the first to use roller Zhanqu paint, then with the help of the roller in the rotating process and to be coated contact, will paint over the surface coated by the coating method of continuous film formation. Roller coating applied to planar and banded by coating coated, is widely applied in the metal plate, coating of plywood, cloth or paper, especially suitable for metal coil coating.
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Ten, electrophoretic coating
Electrophoretic coating is to the workpiece surface coating method using external electric field to make the suspended in electrophoresis liquid pigment and resin particles directional migration and deposition. The emergence of electrophoretic coating technology on coating technology is a revolutionary leap, has the advantages of high efficiency, low pollution and other outstanding advantages unparalleled, currently in the automobiles, building materials, hardware, household appliances and other industries has been widely used. Electrophoretic coating method includes an anode electrophoresis and cathodic electrodeposition, cathodic electrophoresis throwing power is high, good corrosion resistance, which is widely used at present.
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Eleven, since the deposition coating
Since the deposition coating using chemical energy will film material forming a coating covering the surface of the iron products. Iron and steel surface simply rust coating, without phosphate treatment. In twentieth Century 80, the United States, Canada, France, Japan and other countries have been used for the coating of automotive parts, in twentieth Century 80 time metaphase, China has since swimming paint for automotive body and container coating, little gap with the international advanced level.
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Twelve, powder coating
Powder coating are powder coating to a surface treated clean to be coated, after baking melted and form a smooth coating process. Powder coating is environmentally friendly paint a low pollution, energy, but the danger exists in the coating process of powder explosive. Film forming mechanism of powder coating is different from the liquid coating, the coating process is a dry, must use the method of special coating, powder coating methods are commonly used for electrostatic spraying method and fluidized bed coating method (fluidized bed and the static current bed) and flame coating method, also has the powder beam electrophoretic coating method, plasma spraying method and no air thermal spraying method.
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Thirteen, automatic coating system
Along with our country economy development, through the introduction of technology and technical exchanges with foreign, coating technology of China has made rapid progress, compared with the manual coating automatic coating has obvious advantages, it can meet the coating efficiency is high, many varieties, small batch, multi dimension, multi color coating products, has been gradually replace manual painting and become an important way of painting, widely used in all kinds of coating industry.
Automatic coating system is suitable for mass production, flow to achieve the continuous operation, improves the production efficiency, improves the quality of stability, improve the appearance of film, and greatly reduce the labor intensity of coating personnel. Automatic coating system also reduces paint waste, improve the utilization of the coating, while automatic coating system to produce paint mist, reduce energy consumption, to implement indoor coating. Improving the working environment, protect the safety of the operators and the health, is conducive to the improvement of environmental quality.
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