橡胶接头

为什么橡胶接头硫化时需求施增大压力力?

   为什么橡胶接头硫化时需求施增大压力力?
   
Why rubber joint vulcanization demand increase pressure?
  为什么橡胶接头硫化时需求施增大压力力?
   橡胶成品在硫化的时刻都需求施增大压力力,能够进步提升橡胶接头的细密性,消除气泡儿,进步提升胶猜想到成品物理机械性,进步提升多层成品各层间附致力。硫化压力的大小由挠性接头胶料性质、产品构造和技术条件等因素而定。对流动性差的胶猜想到构造杂乱的成品,硫化压力要大些,但以不影响胶料性能及成品中纤维材料性能为度。压力达25MPa时,帘线屈伏回数削减,这是由于压力超过25MPa时能将帘线压扁,引起胶料难于掺入到织物缝隙中。压力过大还会使帘线受损,因而棉帘线轮胎的硫化压力,一般选定在22~25MPa。现在由于锦纶帘线应用于轮胎,子午线轮胎运用了钢丝帘线,因而轮胎硫化压力已大大进步提升。锦纶帘线轮胎和纤维子午线轮胎,硫化压力为30MPa钢丝子午胎硫化压力为50MPa安置安置。
   
Rubber finished products at the time of vulcanization need to increase the pressure, can improve the fineness of rubber joints, eliminate bubbles, improve the rubber guess to the finished physical and mechanical properties, improve the progress of the multi-layer product layer adhesion.The vulcanization pressure is determined by the properties, product structure and technical conditions of the flexible joint.The poor fluidity of the guess to the structure of mixed finished products, vulcanization pressure is higher, but it does not affect the performance of the rubber and finished fiber material properties.When the pressure reaches 25MPa, the number of bending cycles of the cord is reduced. This is because the cord can be compressed when the pressure exceeds 25MPa, which makes it difficult for the adhesive to be mixed into the fabric crevice.Too much pressure will also make the cord damaged, and cotton cord tire vulcanization pressure, generally selected in 22 ~ 25MPa.Now due to the nylon cord used in tires, radial tires using steel cord, so tire vulcanization pressure has been greatly improved.Nylon cord tire and fiber radial tire, the vulcanization pressure for 30MPa steel radial tire vulcanization pressure for 50MPa.
  橡胶接头

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