• <dd id="noiys"><optgroup id="noiys"></optgroup></dd>
  • <sub id="noiys"></sub>

      <dd id="noiys"></dd>
      1. <sub id="noiys"></sub>
      2. <nav id="noiys"></nav>
      3. <wbr id="noiys"><legend id="noiys"></legend></wbr>
      4. <strong id="noiys"></strong><dd id="noiys"></dd>
          <sub id="noiys"></sub>
          網站標志
          News
          Common knowledge of car bumpers
          Time:2017-07-31 14:35:32    Page view (763)
          The car bumper is a safety device that absorbs the external impact and protects the front and back of the body. Twenty years ago, the car front and rear bumper is mainly metal materials, with a thickness of 3 mm or more steel plate stamping into U-shaped steel, surface treatment chrome, and frame longitudinal reinforcement riveting or welding together, and the body has a The larger gap seems to be an attached part. With the development of the automobile industry, car bumpers as an important safety device is also on the road to innovation. Today's car front and rear bumper in addition to maintaining the original protection, but also the pursuit of harmony and unity with the body shape, the pursuit of their own lightweight. In order to achieve this purpose, the current car before and after the bumper with the use of plastic, people called plastic bumper plastic bumper from the outer plate, cushioning materials and beams composed of three parts. The outer plate and the cushioning material are made of plastic, Remove it. This plastic bumper using plastic, in general, the use of polyester and polypropylene two kinds of materials, made by injection molding method. Such as the Peugeot 405 sedan bumper, using a polyester-based materials and made by the reaction injection molding method; and the public Audi 100, golf, Shanghai Santana, Tianjin Xiali and other models of the bumper, using a polypropylene The material is made by injection molding. There is also a foreign called polycarbonate plastic, infiltration alloy composition, the use of alloy injection molding method, the processing of the bumper not only has a high strength of the rigid, but also has the advantages of welding, and coating performance, The amount spent on the car more and more. Plastic bumper with strength, rigidity and decorative, from the security point of view, the car collision can play a buffer role, to protect the front and rear body, from the appearance point of view, can be naturally combined with the body in one, One, has a good decorative, decorative car to become an important part of the appearance.
          news
                                     Zhoushan Aobo Pipe Industry Co., Ltd  CopyRight   浙ICP備15001253號   
           Links:PE to the water pipe manufacturers,Stainless steel retractable door,Solar water heater manufacturers
          Website information
          • All rights reserved: Zhoushan Aobo Pipe Co., Ltd. Background Management Technical Support: 7mi.net


          成年午夜免费影院,亚洲欧美人成综合在线,久久日本三级韩国三级,综合久久—本道中文字幕