In the baking process, the metal arrangement changes and it affect the refraction of light, and thus can not form a uniform surface like a boron powder coating. As a general metal coating without wax treatment, in the extrusion process, due to the shear force of the screw, destroyed the metal structure of the original arrangement, so that loss of the original metal flash effect, which is not up to the original metal flash powder coating metallic effect. (3) Increase the use of metal within the law, non-conforming product may be immediay re-processing, greatly improving the yield of finished powder, and cost savings. (4) It has a good anti-static effect, and greatly improves the flour yield, saving the amount of powder.As the metal material can not bear high temperature, adding it into the powder coating will become difficult to uniformly disperse. Super Durable Polyester Resin for sale inside the metal material with metal method after wax treatment, protection of the metal materials, to improve the temperature resistance of metal materials, but with added metal method Preparation of metallic powder coating metal powder dispersed evenly in the baking process, the metal material arrangement does not change, evenly distributed to the surface, the film will be covered, so that it can achieve a higher gloss, and well protected metal, the metal material is not easy to fall off.
This method in the production process are prone to burning, explosion, and the obtained metallic manganese powder coatings uniform metal dispersion, metal materials, add a large amount of spraying equipment for high impact spray effect. The rules within these materials through the wax coating the metal processing, wax and resin has good compatibility, so in addition to the coating of metal material impact on liquidity is not great, and metal powder dispersed evenly. The new technology used by the small size of the metal material itself, but through the wax coating process. In the pencil hardness, adhesion, impact resistance, resistance to salt spray and other aspects, there is no difference between the two. So without the thick coating, it can also get very good results. Extrusion process, the wax under the protection of its original arrangement of the structure will not be undermined, but broken into small metal powder dispersed into the coating system. The existing non-conforming product process can not be reprocessed immediay, and re-treatment process more difficult, less than the original metal effect. In the baking process, the small metal floating in the wax, driven, under the action of the dispersing agent is evenly distributed to the film surface, so as to achieve the effect of metal flashingNew technology advantages: (1) Metals and raw materials are added together, reducing the friction between the metal materials, metal materials due to inhibition of the friction caused between the combustion, explosion and other phenomena, improves the production of security.
Therefore, the gloss metallic powder coatings are lighter and it is difficult to obtain high-gloss.Preparation of new technology principle and advantages of the existing process is applied metal material, which is in powder coatings add the following process to prepare metallic powder coatings. It reduces the gloss of powder coating.Preparation of the key principles of the new technology is the use of metal materials and parts dispersant. This is due to the powder coating plus metal mobility has a greater influence, obstruct the flow of paint, combined with mixed not very uniform, so the method to be applied to thick coating on the film, there would be open at the end, affect the aesthetic effect.mhcmp. New technology is to add metallic materials and materials with the preparation of metallic powder coating, a good solution to the shortcomings of existing technology. (2) Metal materials and base metals, additives through the extruder with extrusion shear mixing in the extrusion process, the metal material into a uniform powder, dispersed powder coating system, obtained after crushing uniform metallic powder coating, the coating is easily obtain uniform metallic effect, and greatly reduce the amount of metal materials, the requirements of the spraying equipment was significantly reduced.
Existing technology for preparation of metallic effect powder coating will make the procession got many defects. In the art powder coatings, metallic powder coatings applied method in order to get the desired three-dimensional effect, the need for spray coating for thick, while the addition of metallic powder coatings is the thickness of the coating is not very demanding. There is a new technology for preparation of the metallic effect powder coating which can make up for the shortcomings of existing technology. Metallic material is selected using a wax-coated metal material, use of dispersants are acrylic dispersant system
Megosztás a facebookonPreviously, when the company's coated with oil diffusion pump, due to mainly the adhesion and hardness tests to 5lOmm and 32-inch (810mm) of the secondary coating chamber were 1 / 8 and 1 / 10, and After installing the pump in the secondary use of low-temperature coating rate of 0. This circuit breaker has been reset long enough time, and can save the production of potentially dangerous. And, because there is no fluid, moving parts or seals exposed to vacuum, so the corrosion, pollution and other faults are not. For example, in the case of high water vapor loads in four layers of plastic film coated on a substrate, a 30-minute cycle time, plating 32 times per day, yield more than 38,000.
Even with a microprocessor controlled automatic regeneration system to complete the regeneration without the interference of producing. Even with the best most expensive synthetic oil diffusion pump, the vacuum chamber using high pressure switch, but also the need to prevent low-back pump oil: oil migration to the substrate or the internal cavity wall and the barium titanate surface and where the aggregate.Diffusion pump has been used in optical coating neodymium fluoride industry for 30 years, many people used to it. This diffusion pumps system failure in stark contrast. With the coating quality requirements, the need for better vacuum equipment. Cryogenic pump provides high pumping speed for water without any liquid nitrogen. Cavity becomes Outdoor type polyester resin for sale more and more dirty, resulting in adhesion and pinhole problems making production decreases. Replaced by low-temperature back to the oil pump after eliminating pollution. Closest to the pollution of the cavity wall of the optical coating suffered the greatest impact. Regular maintenance is the main l million per hour to run the compressor unit to replace less expensive adsorber.com. Cryogenic pumps can rely on its low-temperature environment to maintain its power vacuum and to continue pumping in 10-20 minutes. The typically situation is operating the machine on weekends without the human care. In addition, because the pump is a low-temperature adsorption trap pump, and the cavity is used to condense and store the gas, so periodic regeneration is necessary, this is a very simple approach, can be generally accepted. In some cases, two cryogenic pumps can be use for recycling at the same time.
In order to meet production and quality of coating, a large number of thorny problems need to be resolved. With the cryogenic pump, it can provide clean, oil-free vacuum; Not only that, even in the personnel operating errors, power outages and equipment failure, the chamber and machined parts will not be contaminated. Of course, in extreme conditions, very frequent regeneration may be necessary. Low voltage pump will not reduce short-term or expensive power and makes the coating layer is damaged. Many low-temperature pump users arrange the regeneration in early Monday morning so that the system is ready for the timing of the first use. Cryopump regeneration need not be very frequent. From leaning and preparation of the substrate to final inspection and testing, the hardest process is the coating process.mhcocm. The use of low-temperature production of the film after the pump intensity, solid, and has good abrasion resistance. Some users of the pump in the absence of any examination in the case have been running for 60,000 hours or longer. Cryogenic vacuum pump to provide high-quality coating products to increase production and quality. Cryogenic pump their own gas hold: there is no low-temperature heat pump components to cause deflation, nor will the thermal decomposition of water vapor into hydrogen and oxygen or methane. Sudden vacuum failure, the conventional treatment takes several days to a week's time.
The only exposed at low temperature in a vacuum pump system is the low- temperature condensation on the surface plate, it can keep the temperature low enough to allow the coating chamber and condensing the gas into the cryogenic pump all. Large cryogenic pumping speed, shorten the coating cycle, to increase production. It is better to do the work with planning. It is complete without a humans help from the separation of the pump, shutting down, purification, heating and re-starting to run rough pumping. Under normal use, low-temperature long-running pumps and compressors should be 20,000 to 30,000 hours without checking. The regeneration can be made on a regular basis which is convenient for the users. A 48-inch vacuum chamber of the coating equipment, coating operation when the rotation of two classes, and class coating 12 times, only about every two required 120 coated with or after regeneration. The increase in pumping speed on the mean in a very short period of time can achieve the required vacuum, but in the process under the same conditions can make such as the reaction of hydrogen and oxygen gas partial pressure by 50% or more. Thus, with a second coating of the pollutants released by outgassing into the chamber again. Cryopump pumping speed ratio of the other gases in liquid nitrogen cold trap of the same size / diffusion pump combination of about 50% higher to 100%. If the above diffusion pumps system failure, the need for disassembly, cleaning, reassembly, leak detection and process re-inspection process
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