For the production of 45mm foldable PP caps, it is necessary to use his data. Although the finished preform is relatively durable and has good resistance to water and fire, his data is relatively weak after comparison, so how to save his data when it is used? Let's take a look.

1, pay attention to the humidity: When the data about pet bottles are stored, the right medicine should be prescribed. Why do you say so? Because some of the data is granular, and some of the data is powdered, the moisture requirements of different data are not the same, the powdered requirements are definitely dry, and the granular ones are slightly lower than his, but their moisture requirements are relatively high.

2, pay attention to fire prevention: in the use of time, fire prevention is also very important, we are aware of the material of plastic is not only more flammable and burning when the relatively rich black smoke, and want to quell these flames will become more difficult, so if you want to save time and save, fire prevention is definitely the most important.

Good 45mm foldable PP caps must be inseparable from good raw materials, so at this point, our requirements on the quality of raw materials and preservation must be very serious pipe fittings.

At present, the use of bottle mold is more extensive, with energy-saving, long service life and other characteristics, so that more and more manufacturers love. So what are the factors that affect the forming of the bottle embryo mold? Let's take a closer look.

First, the polymer in the extruder transport, melting, mixing, pumping molding for the formation stage of the embryo; At this stage, the factors affecting the wall thickness distribution are: 1. Molecular weight distribution and average molecular weight of the data; 2, blow molding machine temperature control system and screw speed, during which the temperature control system includes hopper temperature, barrel 1 zone, 2 zone, 3 zone, 4 zone temperature, flange temperature and storage die head 1 zone, 2 zone, 3 zone, 4 zone temperature.

Second, the stage when the mold embryo is extruded from the gap between the mold lip and the mold core is called the blanking stage. At this time, the common phenomena are type embryo expansion and type embryo sag. The factors that affect these two phenomena are: the die head diameter and wall thickness control system of the blow molding machine, which includes the axial wall thickness control system and the circumferential wall thickness control system, which is used to adjust the gap between the die lip and the die core.

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