Sealing strip In recent years, the term "new infrastructure" has become very popular. Compared with the “public railway construction” such as highways and railways, the new infrastructure pays more attention to the use of big data as the core technology element to realize the digital transformation of traditional industries. At the same time, the new infrastructure has also spawned many new industry opportunities.
This year's "two sessions", the new infrastructure was included in the government work report. According to statistics, 22 provinces have launched more than 10,000 projects, and the total investment in new infrastructure has exceeded 33 trillion yuan. Huang Qifan, deputy chairman of the China International Economic Exchange Center, believes that the new infrastructure is the strategic basis for leading China's new technology and industrial revolution, and will generate multiple trillion-level investment directions.
In the "new infrastructure", 5G, big data, artificial intelligence, industrial Internet, etc. have become the key content. These are of great significance to the construction of smart cars, smart transportation and smart city related facilities. The application of big data and industrial Internet technology will provide assistance to the innovative business model of the automotive industry and the digital development of manufacturing, and enhance the overall level of digital and intelligent manufacturing in the automotive industry. The advancement of the "new infrastructure" will accelerate the speed of innovation in areas including automotive technology research and development, business models, and production models, and will have a disruptive change in the automotive industry.
According to statistics, auto consumption has accounted for more than a quarter of China's total social retail consumption. So far, my country has been the world's largest automobile consumer for 9 consecutive years. The acceleration of "new infrastructure" has brought new opportunities to the traditional auto industry. As one of the industries with the highest degree of correlation with "new infrastructure", the auto industry is expected to become a new outlet again.
自動車産業全体の発展に伴い、対応する自動車産業チェーンの関連産業も促進されます。 その中でも、商用車の重要な外装装飾であるシーリングストリップの改良も期待されています。 したがって、強固な基盤を築き、独自の製品開発を強化することは、周辺産業の鍵となります。
Automobile sealing strip is one of the important parts of automobile. It has the function of filling various intermittent and gaps between body components. It has functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc. It can effectively prevent wind and rain from entering the cabin. , And improve the comfort of drivers and passengers and protect the body of the car.
Sealability is an important indicator of the quality of the entire vehicle, and the automobile sealing strip plays an important role in it.
There are many types of sealing strips, classified by material, such as TPE, TPV, modified PVC, EPDM rubber, etc. Automobile seals belong to automotive exterior parts, and have basic performance requirements for product performance: aging resistance, weather resistance, resilience, compression permanent deformation resistance, high and low temperature resistance, etc.
There are many sealing strips used on the whole automobile, mainly including front and rear windows, door seals, door glass guide groove seals, sunroof seals, roof cover seals, trunk seals, etc. Sealing strips are used wherever body sheet metal or sheet metal and glass need to be combined.
Vulcanized rubber seal
ゴムやプラスチックの優れた特性を持ち、リサイクル・再利用が可能です。 プラスチックの加工性能に似ています。 耐熱性、耐寒性、低密度、耐溶剤性に優れています。 ネオプレンゴムに似ています。
It is usually blended and modified with SEBS as the base material, and is usually used in doors, windows, furniture, automobiles, household appliances and so on. With the improvement of people's living standards and the pursuit of quality of life, the importance of the appearance, environmental protection and comfort of the sealing strip is increasingly prominent. TPE sealing strip has the following characteristics:
PVC material is cheap and easy to obtain, with corrosion resistance, wear resistance, acid and alkali resistance and various chemical media, flame resistance, high mechanical strength, the disadvantage is that the plasticizer in the formula is easy to migrate, it becomes hard and brittle with time, and loses its elasticity , Not resistant to aging, poor weather resistance and low temperature performance. Generally dark products. It is suitable for occasions where the illumination is not strong, the temperature change is not big, and the climatic conditions are not bad.
Although the car seal is only a small part in the car, it can ensure that the door is stable and heavy, and it can protect the car from weather, dust, heat, and sound. It also has a decorative effect on the edge of the door and window junction. When the body is vibrated and twisted, The sealing strip can also play a role in buffering, shock absorption, and protecting the glass. It can be seen that any small parts that are inconspicuous contain great wisdom and are accompanied by huge business opportunities.