In addition to the gradual development towards green and environmental protection, the manufacturing process of automobile interior and exterior trim parts in the future has two outstanding features: first, the design of automobile interior is no longer limited to the design and development of single parts, but integrated design from the overall interior system; The second is to gradually adapt to the customer's personalized customization needs, and to provide DIY style personalized solutions will become the trend and trend that the automotive interior decoration manufacturing process must adapt to in the future.

Interior parts do not simply play a decorative role. They also play a role in fire resistance, light resistance, shock absorption, heat insulation, sound absorption and other functions, playing a very important role in the comfort and safety of cars.

Compared with the foreign standards for the physical and chemical performance requirements and test methods of automotive interior parts, the Chinese standards have formulated their own national/industrial standards on individual projects. Many other specific physical and chemical performance requirements and test methods refer to the internal control requirements of foreign famous automobile manufacturers, and product standardization inevitably lags behind to a considerable extent.

The relevant requirements of automobile interior in China focus on short-term sample performance test, while foreign standards focus on long-term weather resistance and safety performance test. Compared with the short-term sample performance test, the long-term weathering performance test is closer to the actual working conditions, and has higher requirements for product quality. Therefore, the performance test requirements of automotive interior products in China need to be further improved.

The national standardization of automotive interior parts in China is low, the number of standards is small, and they have not been updated in time according to the progress of the times. The society has been slow to respond to new requirements for product quality concerns. For example, most automotive OEMs with joint venture brands and independent brands have their own internal control standards for weather resistance and scratch resistance of automotive interior parts, which have been implemented for many years, but China has not issued relevant national/industrial standards so far.

In recent years, with the vigorous development of China's automobile industry, China's automobile interior trim industry has been growing, and the product quality has gradually improved, but there are still some problems in its quality. Only by strengthening the formulation and implementation of relevant standards for automotive interior parts can we ensure the healthy development of automotive interior parts industry.

The car interior includes the compartment baffle and door decoration. Instrument panel assembly, armrest, roof, carpet, seat and other accessories, knitwear, leather, artificial leather, felt. In the manufacture of these equipment, they can be realized by using metal products, wood products and plastic products. The use of wooden products will lead to higher production prices of automobiles, and automobiles that are not conducive to sales and promotion can be used in high-end automobile manufacturing. The manufacturing of metal products is relatively common in the low-end of automobile manufacturing, and the use of hands and comfort have certain limitations. The use of engineering plastics has changed the current situation of automobile manufacturing. The use of the driving space of the car reflects the improved and low construction cost. The high use cost also has good comfort and flame retardancy. At present, the plastic materials used inside and outside the used cars have a large market share.

As the number of cars continues to expand, it will stimulate the rise of the market for high-quality cars. With such a transition in size and weight, plastics will become more and more popular in cars, and the use and performance of technology will be greatly improved. From the perspective of the development law and the current situation at home and abroad, PVC materials have been gradually replaced, while polyurethane materials will have a touch function and have been widely used, which is convenient for people to drive the experience of touch operation. In addition, PL engineering plastic materials have important use value, which can reduce the serious impact force, absorb the impact energy of parts, and improve the safety of automobile use. In addition, metal and plastic composites will be the main direction in the future outside the automobile manufacturing industry. Their advantages in synthetic metals and plastics will improve the manufacturing level of the interior and exterior of automobiles.

Common plastic exterior decoration products include bumper, baffle, radiator grille, side anti-collision strip, rear-view mirror frame, door handle, rear trim baffle, wheel cover, body outer plate, plastic window glass, etc. From the material point of view, these plastic products are roughly divided into three categories, namely plastic plastic injection molding products, composite plastic molding products, and polyurethane reaction injection molding products. Plastic outer parts are the main application of plastic instead of steel, which can reduce the weight of cars, so as to save energy.