The mold usually has only the cavity part and no punch. The mold surface generally does not need to be hardened. The blow pressure borne by the cavity is much smaller than that of injection molding, generally 0.2~1.0MPG, and the cost is low.
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Introduction to Design
Blow-molded products are widely used in various industries, especially in the beverage and drug packaging industry, and also in the toy industry.
Make R transition at edges and corners
Generally, the cor...
The longitudinal wall thickness of blow molded products is uneven
Cause:
1. The self-weight sag of the parison is serious
2. The diameter difference between the two longitudinal cross sections of blow-molded products is too large
Solution:
1. Reduce the melt temperature ...
Blow molding mainly includes extrusion blow molding (EBM), injection stretch blow molding (ISBM) and injection blow molding (IBM). It is a molding process specially used for mass production of hollow plastic containers. This issue introduces three types of blow molding p...