The two-color injection molding products have been developed for more than ten years in China. Because of their beautiful and durable characteristics, their applications are becoming more and more extensive, ranging from automobiles, medical care, household appliances, daily necessities, electronics to intelligent wear. The requirements of two-color injection molding technology are also getting higher and higher, and there are more and more new processes, such as LSR two-color three color liquid silica gel technology.
The industry differentiation is becoming more and more detailed, and no enterprise can make all two-color products. There are more and more two-color mold injection molding enterprises. At present, the large-scale enterprises include Saihao, Daoxin, Youcheng, Xingke, Dianjing, Jingchao, Jinfeng, Xinzhisheng, Jieshun, Xinhao, Honglida, Dongjiang, Yinbaoshanxin, etc. Of course, there are many large enterprises, not to mention one by one. Two color injection molding machine brands have also grown from a small number of European, American, Japanese, Hong Kong and Taiwan brands before to the situation of numerous mainland brands today. The type of feeding barrel of two-color injection molding machine has also developed from general parallel to more application of right angle and diagonal. The type of two-color mold has also changed from two sets of ordinary split molds to the use of more joint core mold.
The color is also developing from two colors to three colors, four colors and more colors. Materials have also developed from the first two to the same product with different colors, as well as the mixture of silica gel or other metal materials. The service life of the die is getting longer and longer, and the manufacturing cycle of the die is getting faster and faster. The proportion of two-color mold injection molding in the mold industry has also been greatly increased, contributing more and more to the society.
multi-color injection molding
The application proportion of plastics in auto parts is getting higher and higher. In the industrial revolution, great innovations in chemistry, electrical appliances, oil production, steel industry and other fields have also led to epoch-making inventions such as automobiles and airplanes. However, these industries, which are closely related to people’s livelihood and widely used, are also closely related to people’s livelihood and widely used industries. Areas of constant concern for environmental issues. The oil will eventually run out, and the indispensable car burning oil will bear the brunt. In addition to fuel saving or environmental protection, we also need vehicles with excellent performance, dazzling appearance, clean and energy saving:
1. The traditional internal combustion engine will inevitably be replaced by new energy. The products of the transition period are automobiles and electric vehicles. Once the fuel cell or other new energy related technologies have made breakthroughs, the new energy vehicle era is coming.
2. The application of lightweight materials is very important. In order not to consume unnecessary power excessively, future vehicles will be fully lightweight, and three materials will be widely used: plastic, light metal (aluminum alloy) and carbon fiber.
3. Light materials are expensive. If you want to reduce costs, you must consider sharing, modularization and simplification, so that parts can share models and be easily replaced, or simplify several components or procedures into one component or one process (integration).
4. The recyclability of materials has been paid attention to. High recovery rate can also reduce the recovery cost, and plastic is easy to achieve. The melting temperature required for the recovery of ordinary plastics is only 230-250 ℃. Some engineering plastics can reach 4000 ℃ (such as PEEK). Even so, it is still far lower than the 600-800 ℃ required for aluminum alloys. The temperature of glass is 800-1000 ℃, and that of steel 1, 200-1 and 500 ℃. The plastic recovery process is relatively simple. In other words, the proportion of plastic used in auto parts will be higher and higher.
1. The evolution trend of automobile parts The dual color headlight has a history of 40 years from glass to plasticization. Now the headlight has gradually changed from monochrome to two-color. The molding black frame is used to replace the tape. The molding method must also be changed to two-color injection molding.
2. Glazing Glazing: PC plastic with special formula, which is used for sunroof, window, roof and other parts of cars. European models have been used for many years. Glazing products adopt two-color or three color molding technology, which is lightweight, high strength and modeling freedom superior to glass, and will set off another industrial revolution in automobile modeling and material application.
3. After the sheet metal is plasticized, the sheet metal will also be plasticized. The weight of plastic leaf plate is only half of that of metal, so it will be widely used.
