China Sealcon Company

The Technological Innovation Trend of Automobile Sealing Strip

At present, the development of new products of sealing strips has changed the traditional design method. Instead, it uses computer technology, CAD/CAE/CAT, etc., to conduct high-starting analysis to achieve product structure optimization. Because of the complexity of the seal material, the particularity of the structure, the contact load and the nonlinearity of the boundary, the computer-aided design means can be used to improve the forecasting ability and reduce the cost of development and debugging. The traditional design method is to determine the section, geometric shape and structural characteristics of the sealing strip through CAD drawing and modeling from the 3d data of the vehicle. Benchmarking technical benchmark files are used to select materials and their parameters. Through CAE analysis software, such as finite element FEM analysis, the deformation process is theoretically analyzed by simulating and analyzing the structure and deformation behavior of seal strips. If the design is unreasonable and the result is not satisfactory, CAD design can be adopted again. If it is successful, CAD tooling can be used for modeling design, and then CAM software, NC machine tool for processing. Then make the sample, after adjustment, finally complete the product development. Some North American car seals manufacturers have broken through the traditional production of sealing strips. They are working with auto parts factories to provide some of the car factories with a composite frame with both guide grooves and sidebars, or entire doors. This approach is in line with the development trend of module supply in modern auto parts industry. In the raw materials used in the manufacturing of sealing strips, the main raw materials used in the past are also constantly updated and developed. It has excellent physical performance and novel EPDM with operable processing performance, which can control the long chain branching of its molecules, so as to improve its vulcanization performance and improve the extrusion speed and product yield. Other new types of thermoplastic elastomers such as EPO and TPV have been continuously developed and applied in automobile sealing strips. These materials have both good engineering properties of elastomers and excellent properties of plastics, making them controllable and recyclable. These materials are gradually replacing EPDM. As for auxiliary materials, they are mainly carbon black, skeleton material, reinforcing agent, plasticizer and the vulcanizing agent, etc. They are also developing new products, which are applied in the production of automobile sealing strips. At present, some computer application software has been developed to screen and combine the raw materials in the formula, so as to optimize the formula. Rubber additives are also developing towards high efficiency, energy saving, low pollution and low toxicity.
Related News
  • Sealing Sense

    Sealing Sense

    November 29, 2017Thermal growth rate differences of head flanges, tube-sheets, bolts and gaskets create an upset of the gasket-flange interface and a loss of seating stress on the gasket that can cause flanges to leak...view
  • Classification Of Rubber Seal Ring

    Classification Of Rubber Seal Ring

    May 4, 2018There are all kinds of rubber seal rings in rubber seal factory. According to the ssutting shape, it can be divided as follows:O seal ring series (DSH seal series)It has many kinds of products, such a...view
  • Leakage Analysis And Maintenance Of Mechanical Seal

    Leakage Analysis And Maintenance Of Mechanical Seal

    May 4, 2018Leakage analysis and maintenance of mechanical seal1. Repair of mechanical sealMechanical seal flygt pump do not need special tools and materials for maintenance. Generally speaking, mechanical seals ...view
  • Common Problems In Mechanical Seal Pump

    Common Problems In Mechanical Seal Pump

    May 4, 2018The following are several common failure about the seal of mechanical seal flygt pump:(1). Leakage during installation of static test. After the mechanical seal is installed and debugged, the static p...view
  • The Mechanical Seal Of The Pump

    The Mechanical Seal Of The Pump

    May 4, 2018The mechanical seal of the pump is the material or part that prevents the leakage of fluid or solid particles from the adjacent surface and prevents the external impurities, such as dust and water, in...view
  • Sealing Technology

    Sealing Technology

    May 4, 2018Sealing technology mainly refers to the use of a certain combination of sealing materials, sealing elements and the corresponding seal structure form, to prevent or cut off the mass transfer process b...view