Automotive sealing industry status and development

First, the industry status quo

Automotive sealing production process is mainly divided into two categories: First, seal rubber as a raw material, processing of such products include rubber mixing process (two-stage mixing), a variety of composite materials squeeze process (PS, soft, color, glue, sponge rubber, metal skeleton, to strengthen the line, etc.), heat curing process (microwave curing, hot air vulcanization, glass beads fluidized bed curing, the salt bath vulcanizing, Vulcanization vulcanization, etc.) post-processing (cutting, vulcanized joints, electrostatic flocking, surface coating, bonding, etc.); two seal products is plastic and thermoplastic elastomer (TPE) as a raw material, these products do not need to heat curing process, the product The only cooling after molding extrusion production line is relatively short, relatively simple equipment.

In automotive sealing compound extrusion process, a higher degree of automation, domestic technology has been relatively mature, there are many companies according to the needs of enterprises in automotive sealing extrusion line group line design, processing and debugging. Extrusion lines with foreign compared to domestic production line of inexpensive, only about 1/3 of the imported production lines, equipment capacity is lower, usually used in low-end models of seal products. Automotive sealing compound extrusion is the normal production of one of the most important parameters of the process when the extrusion speed, the greater this parameter, the output of automotive sealing products lower the cost of the stronger market competitiveness. Factors determining the merits of the process parameters, in addition to complete sets of production line equipment capacity, suitable for high speed extrusion of the material, structure, formulation design will play a significant role in the decision. The parameters are generally divided into three grades: less than 10M/min 10M-20M/min greater than 20M/min. Domestic automotive sealing of most of the enterprises in 10M/min within a few joint ventures and Chinese-funded enterprises reached 10M-20M/min seal of the foreign car companies are basically above 20M/min.

In the post-processing technology in the automotive sealing extrusion, due to lower domestic labor costs, the degree of automation is generally low, is a labor-intensive process. However, with the continuous development of the national economy, the domestic labor costs will gradually increase the automotive sealing enterprises will be gradually introduced and development of highly automated post-processing equipment.

In addition, the processing technology in automotive sealing, with the development of science and technology, have emerged in a number of new processes and equipment, such as rotary electrostatic flocking equipment to solve automotive sealing to flocking; nylon fasteners automatic assembly machine to replace the traditional manual assembly fasteners way, not only can improve production efficiency and reduce the number of workers, but also to avoid the occurrence of the fasteners, missing equipment, the wrong equipment, and other quality problems; variable cross-section composite extrusion technology is very greatly enhance the automotive sealing products, installation, sealing, and decorative features; a variety of thin films with (flocking with, PE wear with, TPV color trimmings, etc.) and automotive sealing continuous paste technique not only simplifies the original production process, reduce production costs, and also extends the industrial chain of automotive sealing industry.

At present, the automotive sealing of the main materials commonly used ethylene propylene diene monomer (EPDM) or PVC (PVC). Ethylene propylene diene monomer rubber (EPDM) ethylene, propylene monomer by adding a small amount of non-conjugated diene polymerization of elastomer material, its structure is characterized by all unsaturated double bonds in the polymer molecular chain in the branched-chain the introduction of the unsaturated double bonds, and thus has excellent weather resistance, heat resistance, ozone resistance, resistance, UV resistance and good processing properties and low compression, is the material of choice for production of automotive sealing, under normal circumstances automotive sealing EPDM material production life of up to ten years. PVC material used in surface decoration more demanding automotive sealing, such as the roof trim, windows inside and outside seal. With the development of the automotive industry, automotive sealing of the processing and production of new materials can be used more and more. Thermoplastic elastomer (TPE) material is the most prominent of a new type of environmentally friendly materials, it is mainly divided into the polyolefin (TPV, TPO); polyurethane (TPU); polyester (TPEE): PVC class (TPVC, ); polyamide (TPAE) type of thermoplastic elastomer. Mainly used in automotive sealing products polyolefin (TPV, TPO), thermoplastic elastomer material, such materials and glass, the coefficient of friction, wear resistance, and can guide groove as automotive glass, door glass inside and outside the sealed and some auxiliary sealing materials. In addition, a variety of automotive sealing auxiliary materials is increasingly focused on environmental requirements, such as a variety of environmentally friendly adhesives, water-based coating material application.

Second, industry trends

As auto parts automotive sealing industry, its development environment and prospects depend on the background of the Chinese automobile industry. From the historical point of view of 30 years of reform and opening up, domestic political stability and sustained growth in economy, coupled with good industrial base and industrial supporting system for the future development of China's automobile industry provides a good macro environment.

If the Chinese auto market growth rate of 15% per year after five years of automotive sealing production compared to 2009 will reach 1.2 billion meters of the doubling, when the entire automotive sealing industry, annual sales income will exceed the billion mark.

At present, the large number of automotive sealing industry, manufacturing enterprises, small-scale, it is difficult to scale climate, and similar foreign frequently a far cry from the billions of dollars of turnover of the enterprise. With the gradual recovery of the international economy, the automotive sealing of export demand will be increased year by year, the automotive sealing industry experienced a spurt in the market in 2009 after the outbreak of the baptism, will usher in a period of rapid development. Especially in the second half of 2009, the seal of the major car companies clearly felt a serious shortage of its own production capacity, have joined the ranks of the expansion of production capacity, an activated car sealing device manufacturing companies, holding out a lot of equipment orders, I feel the pay period of difficult and important. Enhance the capacity, however, must not allow the solution of the urgent needs of the immediate, but should be combined to improve labor productivity, quality improvement, product structure upgrading, technological progress and other factors raise the overall capacity of the enterprises.

There is no doubt that China's auto industry restructuring is the general trend of the car as the auto industry chain downstream seal enterprise merger and reorganization is inevitable, and only then, seal of the domestic automobile enterprises to become bigger and stronger. First of all, the car seal manufacturers can take advantage of their advantages in resources between integration and the formation of the cluster edge, expanding the strength of the enterprise; Secondly, automotive sealing production enterprises are not just for the vehicle matching service, and must be involved in vehicle product development process, the only way to generate a better understanding of the automotive sealing products, the development of automotive sealing products more targeted to automotive OEMs are more satisfied with the product quality automotive sealing: the third automotive sealing production enterprises should focus on the theme of green between the upstream and downstream enterprises to carry out extensive cooperation, and promote the application of new materials, new techniques, new technologies, and in order to extend the industrial chain of automotive sealing industry.

Third, the Conclusion

In recent years, with China's macroeconomic sustained and rapid growth, living standards improved steadily under the stimulus of national policy, a considerable part of the purchase potential been transformed into actual consumer behavior, become a great power to pull the automotive industry is the rapid growth of the automotive industry has become an important pillar industry of national economy. Now, due to the gradual warming of global temperatures, energy saving and low-carbon technologies is not only walks of life, even the most important issue is that everyone needs attention and face the traditional petroleum-based energy auto industry is facing challenges, new energy vehicles will drive the transformation and upgrading of the automotive industry, the formation of new industry clusters, triggering a global restructuring, thus promoting the formation of a new round of economic growth. In the wave of the automotive industry revolution sweeping the globe and look forward to the automotive sealing industry can have 2 to 3 business stand out, become a world-class automotive sealing of the R & D and production enterprises.