thinwall part production requirement

 " Thinwall " is usually composed of wall thickness less than 1 mm portable electronic parts are defined. In short, thin wall products requirements change process: the higher the pressure and speed, the cooling time is shorter, change parts ejection and gate array.

1. high speed injection machine
Thin wall product required injection molding machine with high pressure and clamping force o fthe minimum value should be 5 to 7 tons per inch (shadow area).
In addition, when the wall thickness to reduce injection pressure increases, the large template helps to reduce the bending. Production of thin wall products, injection molding speed and pressure, and other processing parameters of the closed loop control is helpful to under high pressure and high speed control of mold filling and pressure maintaining.
2, high speed injection mold
Speed is one of the key factors for success of thin-wall injection molding. Can rapid molding and high pressure will melt at high speed of thermoplastic material into the cavity, thereby preventing gate cold setting. If a standard parts complete mould filling in two seconds, then the mold thickness decreased by 25%, 50% less likely to fill time, just one second.
3.Mould steel
Should also consider the mould material. P20 steel molding are widely applied to traditional products, but as a result of thin-wall injection molding pressing force is higher, the mold must be made very strong. H 13 and other hard steel for thin wall mould adds additional security coefficient. Solid mold cost may be higher than the standard mold, however, the 30% to 40%. But increase the cost of communication often offset by improve production performance.

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