Two-color mold
injection molding has become a trend in the field of auto parts. The proportion of plastics used in auto parts is getting higher and higher. In the industrial revolution, huge innovations in chemistry, electrical appliances, petroleum production, and steel industry have also driven Epoch-making inventions such as automobiles and airplanes. However, these industries that are closely related to people's livelihood and widely used are also industries that are closely related to people's livelihood and widely used. Areas that often focus on environmental issues. Oil will run out eventually, and cars that rely on oil-burning but indispensable cars are the first to bear the brunt. In addition to saving fuel or being environmentally friendly, we also need vehicles with excellent performance, dazzling appearance, clean and energy-saving:
1. Traditional internal combustion engines will inevitably be replaced by new energy sources. The products of the transition period are automobiles and electric vehicles. Once fuel cells or other new energy-related technologies make breakthroughs, the era of new energy vehicles will come.
2. The application of lightweight materials is very important. In order not to over-consume unnecessary power, future vehicles will be fully lightweight, of which three materials will be widely used: plastic, light metal (aluminum alloy) and carbon fiber.
3. Lightweight materials are expensive. If you want to reduce costs, you must consider sharing. Modularization and simplification, so that parts share models, easy to replace, or simplify several components or procedures into one component or one process (integration).
4. The recyclability of materials is valued, and a high recycle rate can also reduce recycling costs, which is easy to do with plastics. The melting temperature required for ordinary plastic recycling is only 230-250°C. Some engineering plastics can reach 4000°C (such as PEEK). Even so, it is still far lower than the 600-800°C required for aluminum alloys. 1, 200-1, 500 ℃, the plastic recycling process is relatively simple. In other words, the proportion of plastic used in auto parts will increase.
1. The evolution trend of auto parts The two-color headlights have a history of 40 years from glass to plasticization. Now the headlights have gradually evolved from single-color to two-color, and the tape is replaced by a formed black frame, and the molding method must also be changed to two-color injection molding.
2. Glazing Glazing: PC plastic with special formula, used for car sunroof, car window, car roof and other parts. It has been used in European cars for many years. Glazing products adopt two-color or three-color molding technology, which is lightweight, high-strength and shape-free than glass, and will set off another industrial revolution in automotive styling and material application.
3. After the sheet metal is plasticized, the sheet metal will also develop towards plasticization. The weight of the plastic leaf is only half of that of the metal, and it is bound to be widely used.
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