What should be paid attention to when operating the blow moulding machine?
1. Tube blank temperature and blow molding temperature: it is not suitable for the temperature to be too high, too high, the melt viscosity is low and easy to deform, resulting in uneven thickness of the tube blank during transfer; if the temperature is too low, the product often has more internal stress , easy to deform and stress crack during use.
2. Resin for injection molding and blow molding: it has high relative molecular mass and melt viscosity, while the melt viscosity is less affected by shear rate and processing temperature, and the blow moulding product has good impact toughness and suitable melt elongation performance.
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