Breakthrough in the use of modified engineering plastics for components
Breakthrough in the use of modified engineering plastics for components
According to customs statistics, the declining trend of China's vehicle exports in the first quarter of this year continues, but the export of parts and components has shown signs of recovery. In March, the export of engines, parts and components and other commodities rebounded, and the increase was significantly higher than that of the same period. Among them, the engine exported a total of 161,200 units, an increase of 37.55% compared with the previous period, and the export value of auto parts, accessories, and auto bodies was 1.048 billion US dollars, a month-on-month increase of 59.92%.
The impact of the international financial crisis has caused the European, U.S., and Japanese auto markets to shrink, and the sales of new cars have fallen drastically. Consumers have had to extend the time to renew their cars. Therefore, they can only rely on maintenance and replacement parts to maintain the service. This brings with it zero sales. Parts market. Some parts and components companies in the United States, Europe and other places have closed down due to the impact of the financial crisis. Some orders will find suppliers in low-cost production areas, and China is thus an ideal supply place.
The application of engineering plastics in automobiles has continued to expand further. The main role of engineering plastics currently used in automobiles is to make cars lighter, so as to achieve the purpose of high-speed fuel economy. Developed countries use automotive plastics as an important indicator of the level of automotive design and manufacturing. The largest single use of auto plastics in the world is Germany, and plastics account for 15% of the total material. Among them, engineering plastics account for a large part of the proportion, and the performance characteristics of the five major engineering plastics are all different, and their use in automobiles is also biased.
Nylon is mainly used in automotive engine and engine peripheral components, and its main products are GFPA6, GFPA66, and flame-retardant PA6.
(1) Application on the peripheral components of automobile engines. Since the engine's peripheral components are mainly heat and vibration components, most of the materials used in its components are glass-reinforced nylon. This is because nylon has better comprehensive performance, and the main properties of nylon modified with glass fiber have been greatly improved, such as strength, product precision, and dimensional stability. In addition, the variety of nylon is relatively easy to recycle, and the price is relatively low. These factors make nylon an ideal material for the peripheral components of the engine.
(2) Application in automotive engine parts. Engine cover, engine decorative cover, cylinder head cover and other components are generally modified nylon as the preferred material, compared with metal materials, the cylinder head cover as an example to reduce the quality of 50%, cost reduction of 30%. In addition to the engine components, other reinforced parts of the car can also use reinforced nylon, such as oil filters, wipers, radiator grilles, and so on.
Due to its high mechanical properties and good appearance, modified PCs are mainly used for exterior parts and interior parts in automobiles. The most widely used are PC/ABS alloys and PC/PBT alloys.
(1) PC/ABS alloy is the most suitable material for automotive interior parts. This is because PC/ABS alloys have excellent heat resistance, impact resistance and rigidity, and good process flowability. It is also an ideal material for the manufacture of automobile dashboards.
PC/ABS alloys are also used to make auto parts around car dashboards, anti-freeze panels, door handles, veneers, brackets, steering column covers, decorative panels, air conditioning system accessories and other auto parts. PC/ABS alloys can also be used to make automotive exterior parts such as car wheel covers, mirror housings, and taillight covers. PC/ABS has good formability and can process large automotive parts such as car fenders.
(2) PC/PBT alloys and PC/PET alloys have both high heat resistance and high impact properties of PCs, as well as chemical resistance, abrasion resistance, and molding processability of PBT and PET. Therefore, they are used to manufacture automotive exterior parts. The ideal material. PC/PBT car bumpers can withstand low-temperature shocks below -30°C. When the bumper breaks, it is ductile and fracture-free. Elastomeric toughened PC/PBT alloys and PC/PET alloys are more suitable for making automotive body panels, automotive side panels, fenders, and automotive door frames. Injection-molded exteriors of high heat-resistant PC/PBT alloys and PC/PET alloys can be unpainted. PC/PET alloys can make car exhaust and license plate sets.
Running Shoes,Red Running Shoes,Good Running Shoes,Kids Running Shoes
Shangqiu JIAYING SHOES CO.,LTD. , https://www.jiayingshoes.com