Development of the automotive industry with the development of the injection molding machine industry are inextricably linked

Date：2016-07-12 14:03:15

Development of the automotive industry with the development of the injection molding machine industry are inextricably linked. In recent years, automotive lightweight automotive materials has become the main direction of development, for the development of lightweight automotive plastics industry has provided a broad space. According to industry experts, many developed countries have the amount of plastic automobile as an important indicator to measure the level of car design and manufacture. General Automotive parts by weight per 1% mitigation, savings of 1%; reduce the moving parts per 1%, 2% fuel economy. Foreign car's own quality compared with the past has been reduced from 20% to 26%. Expected in the next 10 years, the car itself will continue to reduce the weight by 20%. The plastics used in the car, making the car lightweight reality.
2020 automotive plastics will reach 500 kg / vehicle
It is understood that the injection molding machine plastic parts for the automotive sector was started in the 1950s, the Ford Motor Company in 1959, the first polyvinyl chloride sol used in automobile manufacturing. The mid-1960s, there have been a small amount of plastic parts begin commercial production. 1970s, the rapid development of synthetic resin industry, for its application in the automotive sector has laid a solid foundation. Especially in the 1980s, the rapid development of car industry prompted the automotive materials revolves around environmental protection, energy conservation, safety, comfort and low cost of these five themes. At present, the proportion of plastic injection molding machines in the weight of the vehicle accounted for 10% to 15%, the proportion of other types of materials for the steel from about 65% to 70%, aluminum about 5% to 10%, from about 2% to 4% glass .
In the past 30 years, the amount of plastic cars from the early 1970s of 50 kg to 60 kg / vehicle up to the current 150 kg / vehicle, and the growth continues, its rapid growth is principally due to the plastic characteristics and requirements of people's expectations of the car is very match.
Industry experts, using material from the modern car, whether it is outside the trim, interior trim material, or function and structure, and everywhere you can see the shadow of the injection molding machine parts. Application features are decorative pieces of plastic and steel, reduce vehicle weight, the main components have bumpers, fenders, wheel covers, spoiler, etc; the main components within the instrument panel trim, door panels, instrument deputy plate, debris cover, seat, rear fender, etc; function and structure the main fuel tank, radiator water chamber, the air filter cover, fan blades.
Currently, 8% to 10% of the industrialized countries accounts for automotive plastic plastic total consumption. 1990s, developed cars with an average amount of plastic 100 kg to 130 kg / vehicle, accounting for about 10% of vehicle curb weight. Japan 100 kilograms of plastic per vehicle average, accounting for 12% of vehicle weight. Most European automotive plastics, accounting for about 10% of vehicle weight. In 1996, the amount of plastic bicycle average North American car reached 116.5 kg, in 2003 and increased to 142 kg.
In recent years, the largest variety of automotive plastics - polypropylene, an annual 2.2% to 2.8% of rapid growth. 2020, developed automotive plastics will reach an average of more than 500 kg / vehicle.
Many advantages of the materials used to make plastic car favored a plus
First, the application of plastic materials car greatest advantage is to reduce the weight of the vehicle body. "Lightweight automotive industry is the goal, in this regard can be big plastic display their prestige." Industry experts spoke with certainty, "the proportion of plastics in general 0.9 to 1.5, the proportion of fiber-reinforced composite material does not exceed 2.0, and A3 steel metal material specific gravity of 7.6, 8.4 brass, aluminum 2.7. "This makes the plastic material of choice for automotive lightweight timber.
Second, the plastic molding is easy, so that the shape of complex parts processing is very convenient. Such as the instrument panel with steel processing, often you need to molding the individual parts, then assembled with the connector or welded, respectively, step more. The plastic molding once, short processing time, precision is guaranteed.
Third, the elastic deformation properties of plastics injection molding machines can absorb a lot of impact energy, a strong impact on a greater buffering effect on the vehicle and occupant protection. Thus, plastics are used on the dashboard and steering wheel Hyundai to enhance buffer. Front and rear bumpers, body trim are made of plastic material, in order to reduce the vehicle body to the vehicle body impact. In addition, the plastic also has to absorb and dampen vibrations and noise effect, can improve the ride comfort.
Fourth, the corrosion resistance of plastic injection molding machines, local damage will not corrode. Once the paint and steel parts damaged or preservative done well in advance, it is easy to rust corrosion. Plastic for corrosion resistance acid, alkali and salt more than steel, if using an injection molding machine of plastic body panels, very suitable for use in contaminated large areas.
The fifth major advantage of plastic materials is based on the tissue components of plastics, by adding different fillers, plasticizers and hardener to make the desired properties of plastics, changing the material of the mechanical strength and molding properties to suit different car use requirements of the part. Such as bumpers have considerable mechanical strength, while the seat and backrest is necessary to use a soft polyurethane foam. More convenient plastic additive color can be adjusted by different colors, eliminating the trouble of painting. Some plastics can also plating such as ABS plastic plating has good performance, can be used to make decorative, signs, switch knob, wheel cap and so on.
Market Segmentation bigger automotive plastics market Cake
Industry experts point out that the current international automotive plastic injection molding machines are applied to high-tech, electronics, modular, comfortable, safe direction, environmental protection and development.
First of all, modular supply growing trend. Lear Corporation USA car interiors have all achieved a modular supply, it is reduced to the front compartment, rear seat, dashboard, door linings, door and trunk lining and other six members. These parts and all electrical and mechanical equipment are pre-assembled, and can be mounted directly on the vehicle assembly line.
Followed by the electronics trend. For example, luxury car seat assembly includes electric adjustment, preheating function, as well as with lumbar massage function, and gradually spread to the economy car.
The third trend is the time of delivery. Since most types of upholstery available in each cartridge in the optional configuration, so the interior should be substantially synchronized with the OEMs to implement production, just in time delivery, to avoid large inventories.
The fourth trend is the safety and environmental protection. Europe and the definition of plastic automotive environment is critical, involving a product's life cycle. That is, use of environmentally friendly raw materials, in environmental manufacturing conditions, not to human health and the environment in the use of any hazardous products and recycling process. Automotive plastic parts in the selection, to choose the plastic varieties tend to focus on unity, ease of classification, or overall recovery, which is a plastic recycling, and the use of renewable basis. For example recycling of used bumpers granulation production dashboards, guard board, recycled after regeneration seat foam made cars lining; instrument panel skin of thermoplastic polyolefins, polypropylene injection skeleton filled polypropylene foam, it is easy to recycle the whole future of the dashboard. Currently, the major foreign car companies have set up a special vehicle recovery testing center.
Finally, expand the range of applications of plastic injection molding machines and technology in the car. Development of plastic injection molding machine application in functional parts, such as the multi-bracket, dashboard bracket, engine guard panels, plastic intake manifolds are widely used in foreign cars; application of glass fiber reinforced thermoplastics to make automobile parts, reduce vehicle weight; the use of advanced technology and equipment for molding plastic automotive parts production, improve product quality.

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