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  • Several Influential Factors Affecting Preform Molding

    1. The polymer is transported, melted, kneaded, and pumped out to form a parison in the extruder. At this stage, the factors affecting the wall thickness distribution are: 1. The molecular weight distribution of the material and the average molecular...

  • Considerations for Plastic Cap Mold Design

    The planning of bottle cap mold requirements is based on the shape, accuracy, size, technical requirements and production batch of plastic parts. When planning the mold, consider the following aspects: a. Number of cavities and placing method: Bottle...

  • Advantages and process of bottle preforms

    The preform is a necessity for everyone's life. You can see it in shampoos, cosmetics and oil barrels that you often use. There are many advantages in making preforms. First, the advantages of bottle preforms 1. It has good advantages in security. 2....

  • Prevention of deformation of preform molds during heat treatment

    On the premise of ensuring the hardness of the mold, the pre-cooling, step-cooling quenching or warm quenching process should be used as far as possible. 2, Heat treatment is recommended. For precision and complex molds, if conditions permit, nitridi...

  • Raw material analysis of plastic bottle cap products

    1. Polyethylene. The English abbreviation of polyethylene is "PE". At the time of polymerization, polyethylene is also divided into high-pressure polyethylene and low-pressure polyethylene according to different pressures. The English abbreviations a...

  • Introduction of the use of plastic bottle caps and the temperature standard of plastic bottle cap molds

    1. Improve moldability: Each plastic part has its proper mold temperature for molding plastic bottle caps. During the production process, if the mold temperature can be maintained at all times, the moldability of plastic parts can be improved. If the...

  • Plastic molds are further divided into:

      A. Injection molding mold-TV shell, keyboard buttons (the most common application) B. Blowing mold-beverage bottle C. Compression molding die-Bakelite switch, scientific porcelain dishes D. Transfer molding die-integrated circuit products E. E...

  • Method for taking out the products remaining in the mold cavity

    Method for taking out the products remaining in the mold cavity Plastic mold knowledge-the method of taking out the products remaining in the mold cavity: 1. Use brass sheet to squeeze into the gap between the product and the mold, pry the product aw...