Measure (1) The quality of the blank before plating should be good. Divided grid blanks are not well plated, and plastic blanks are harder to inspect than metal blanks. After plating, there will be "pitting" or "star point Therefore, we must face the quality of the rough before plating. First we must understand the source of the customer's products, whether it has been plated, special injection parts, not the first batch of injection, in order to determine the quality of the rough . For unfavorable blanks, it must be polished by a cloth wheel so that it reaches the requirements before plating. At present, domestic manufacturers with good plating quality have adopted such measures. The qualified rate of products can generally reach more than 90%. Of course, blanks can be plated without a good product. The surface of a full set of injection blanks is very smooth and bright. Mirrors and plastic parts should be dispensed separately after injection. Never collide. (2) Do not bump the pre-treatment metallization. Before processing each process, the plated parts cannot collide, especially 70 °C about etch roughening process, ABS plastic softening increases, hardness decreases, if the collision is very easy to rub hair, there must be printed dots after plating. If high demand plating, especially compared Large or planar light-plated parts, absolutely not allowed to casually put the etching liquid, etched after cleaning with a net, require the product to be mounted on the fixture etched until the electroless copper plating Or electroless nickel plating. Explain the status quo, problems and countermeasures of plastic button electroplating technology. (3) Control of etching degree. Etching Insufficient or excessive etching results in poor finish or plating of the plated product in order to achieve an appropriate surface condition of the object to be plated. Stratification is not good. Plating finish on the one hand depends on bright copper bright nickel plating, on the other hand can not ignore the degree of erosion control. Japan is a lot of electroplating full line On the completion, erosion generally does not exceed 3min. Plastic plating topics (1) appearance quality. The appearance of plastic electroplating requires a smoother surface than the electroplated surface of metal products, and the brightness can generally be achieved, but there is a certain degree of difference in the degree. through It is often thought that the bright appearance of the hair is better "black", and the visual sense of lightness is "thick". This macroscopic feeling is determined by the surface microscopic state, which is to say the microscopic surface. Must be very flat. The coating must not be in the form of fog, and it is very misty. It cannot be found under strong light or when it is emphasized. It must be discovered under certain angles of light. Easy to ignore. As for defects such as exposed plastic, peeling, burrs, pitting, and poor plating, electroplating is absolutely not acceptable. Some of the secondary assessment sites and the opposite side must be Covered with plating, it is bright and shiny, and it can not be blackened, exposed, or clipped. (2) Internal quality. Electroplating of parts for automobiles and motorcycles or higher-grade parts requires certain technical specifications. For example, plating joints and copper-acetate corrosion resistance test Tests, thermal cycle tests, and field tests, etc., need to have a certain degree of resistance to deformation. Huangyan West Park mold auto parts plating has many years Scientific research and development experience, peer considerable strength. (4) The bath cannot be turbid. The metallization method is generally copper layer or nickel layer. Each has its advantages and disadvantages. From the point of view of operation, electroless nickel plating is less chaotic and the plating speed is faster. In addition It can also save expensive palladium salt, the cost is slightly lower, but it is less chaotic. The bath must be kept clean and not turbid to prevent the deposition of fine particles, otherwise the bright copper plating It will "magnify" tiny particles to form granules. After the metallization, wipe the squeegee, especially the large-scale plane plating, to prevent the powder particles from depositing, especially the metallized copper layer. This process cannot be omitted. Button plating technology analysis. This process may cause some small dots or small partial exposures for larger plating parts, and may take partial repairs. , With silver paste, conductive adhesive or soft lead pen repair, it is indeed good for improving the passing rate of finished products. Electroplating copper liquid should also have good cleanliness. It is equipped with continuous filtered air agitation to ensure the clarification of the copper plating liquid, so as to avoid hairiness of the plating part. Copper plating solution should also have good Good leveling capacity dispersion ability, wide range of current density operation. Nickel plating should also have the above premise, but also must pay attention to the thickness of the coating, many manufacturers often do not To face it, I thought that the follow-up would still be chrome plating. The thickness of the nickel layer is not significant, as long as the bright copper plating is bright, and the nickel layer can be whitened. In fact, such corrosion resistance test of plating parts often fails. To the request. Therefore, in the electroplating of parts for automobiles and motorcycles, double nickel, triple nickel, or nickel seals must be plated to produce microporous chromium to meet the corrosion resistance test requirements. (5) Plating fixtures should be used reasonably. The product should not only have proper conductive contacts, but also have proper tightness. It must be conductive and clamped, but it should be prevented. Deformation due to tight clamping, especially deformation after plating. It is not enough to remove the part without deformation after test clamp. It is necessary to take into account the deformation after large-volume electroplating, especially the higher temperature of nickel plating. Deformation. The electroplating fixture must be well insulated, and no particles can be plated on it, otherwise it will cause particle burrs on the surface of the plated parts; Otherwise, when the chromium layer is plated with copper, the copper layer tends to become powder and form burrs on the surface of the product. This article is based on the status quo and topic analysis of plastic button electroplating technology. Button plating Technical plastic button electroplating technology analysis: ?? Plastic electroplating, internationally produced in the 50s of the 20th century has produced a scale, China's 60 to 80 years also achieved industrialization At that time, it was mainly used for small products such as buttons and buckles. It was required that the coating be peeled off and the surface be the same as metal. The development of the times, the application of plastic plating has also expanded , from the original small parts, a small amount of application development to large parts, a large number of uses, from decorative applications to functional engineering applications, etc., so the quality requirements of the coating is more and more high. At present, the quality of plating parts in Guangdong and Zhejiang provinces in China is relatively high, and their appearance can be comparable to that of foreign advanced products and meet the quality requirements of foreign-funded enterprises. share it The status quo, problems and countermeasures of plastic button electroplating technology. However, the internal quality is not perfect because of the test method test specifications. Want to learn more about buttons: accessible This visor has an adjustable velcro. No matter what you do, you can adjust the sun visor hats to a comfortable size. A sweatband on the inside of the brim helps keep your head cool and makes you very comfortable on hot days. Both men and women can wear.
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