Tensile mold

    Production   Hot dealing   grind cycle   Polish   qulified rate   HRC

    Sreel mold   Use about 10000 pieces,   after hot dealing need grind and plosh ,There is 90% of surface is smooth   50--58

   Copper alloy mold can not have more than 70,000 to directly polish,  99% surface is smooth   50--58

   Glass mould

    Plastic mould

Polishing qualification rate HRC during heating treatment grinding cycle  

   Steel mould    Adopt Seven thousand to 1 million,  Heat treatment after grinding, polishing  85% of the surface is not smooth 85%  38--45

  Copper alloy mold can not have more than 30,000 to directly polish  99% of smooth surface   38--45

    Steel mould ; AC current is length, material reuse rate is low and the production cycle is long, using life is short and have a slow conduction, friction coefficient is large , Alloy copper mold; AC current short, processing cycle of  alloy copper mold is short, long life and conduction fast, low friction coefficient.

   Polishing qualification rate HRC during heating treatment grinding cycle

   Iron die cast iron 24 hours after heat treatment grinding, polishing, 88%surface is not smooth   32--42

   alloy copper mold needn’t 142 hours can directly polishing and 99% surface are smooth  32--42