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The curing methods of EPDM sealing strips

06 09, 2023

  The curing methods of EPDM sealing strips can be divided into:

  (1)Discontinuous vulcanization method for EPDM sealing strips(extruded,cut lengths of the tape,placed in an autoclave,extruded to form a sulfur-containing compound for the rubber semi-finished model);

  2)Continuous vulcanization(microwave continuous vulcanization method and salt bath continuous vulcanization method,continuous hot air vulcanization method and other methods).

  A.Microwave continuous vulcanization composite sealant strip:Microwave continuous vulcanization production process includes metal core,dense rubber and extruded foam plastic material and energy,improving efficiency,continuous vulcanization equipment is better than others.Technology has extruded products the best way in the world.Microwave heating is a feature of the heated object,a bit like conventional input from the outside,not only heating and distribution,but also by improving product quality,the heat generated shortens the time required for heating.

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  B.Continuous curing sealing salt bath:bath salt bath containing sulfide nitrite system,greater environmental pollution,is gradually eliminated.

  C.Hot air vulcanization sealing:Hot air vulcanization has developed into a gust of wind,high temperature,can achieve high speed and hot air vulcanization(Vmax:60 m/s and Tmax:450°c),using the effect of pretreatment,at the same time Greatly improved security.