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Question:

Blow molding process conditions The purpose of the adjustment of technological conditions is that,

Blow molding process conditions The purpose of the adjustment of technological conditions is that,

Answer:

The purpose of process adjustment is to meet the minimum wall thickness requirements of the product. The product wall thickness is as uniform as possible, and the product weight is as small as possible (reducing material consumption). A reasonable method for setting process parameters is to combine experience with numerical analysis techniques. The basic process is,
Use the established computer model to simulate the status of blow molding die, blanking billet and clamp plate;Enter the parameters affecting the wall thickness distribution of parison at each stage;The simulation results are analyzed, and computer simulation shows that the wall thickness is not enough, and which parts are super thick;
Using artificial experience to adjust the input parameters and repeat the process to ensure that all parts of the product reach the minimum wall thickness as much as possible to reduce the wall thickness of each part of the product.Analyze and compare the results of several process plans, and finally determine the optimized process parameters. Stretch blow molding, also known as biaxially oriented blow molding, is a method for forming a packaging container by mechanically stretching an parison in a high elastic state of a polymer and expanding radially (stretched) parison with compressed air. Stretch blow molding consists of one step and two steps.

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