Thin - walled plastic mold processing key points
Due to the thin wall plastic mold and common plastic mold on the wall thickness to avoid, so the characteristics of thin wall plastic mold processing is also relatively unique.What conditions are met to be considered qualified thin-walled plastic mold?It can be analyzed from the aspects of structure and performance.
Because thin wall injection molding requires higher injection pressure, therefore, the greater the stiffness and strength of thin wall plastic mold, so that it can withstand greater pressure, so.Thin - walled plastic mold processing when often used thicker patterns, more support pillars.
Compared with ordinary plastic products, the residual stress of thin-walled plastic injection parts is small, and there are some problems such as warping and deformation.In order to avoid the occurrence of similar defects, it is necessary to strengthen the cooling during the processing of thin-walled plastic moulds to ensure the dimensional stability of plastic parts.
Because the requirement of plastic model thin wall plastics is very high, use gate, the thickness of door is bigger than wall thick.For this reason, the thin-walled plastic mold is usually used in the non-flow-gating system to ensure the balance of the mold pouring system.
It is understood that the filling time of thin-walled injection molding is shorter than that of normal injection molding, indicating that its injection speed is faster.In order to prevent the trapped gas from ignition during this process, the high requirement of exhaust performance is put forward in the processing of thin wall plastic mould to meet the requirement of rapid exhaust.
In addition, thin-walled plastic parts are more likely to be damaged due to their thinner wall thickness than ordinary plastic parts.Therefore, the ejection system of thin-walled plastic mould processing has higher demand in the ejection process to achieve a better balance as far as possible.