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18 de may. de 2019 · A. The screw temperature is too high → adjust the screw temperature appropriately. B. the screw back pressure is too large → adjust the screw back pressure to the appropriate pressure. C. the injection speed is too fast → appropriate to reduce the injection speed (usually 3.5 ~ 4 S when injected)
PET Preform Injection Molding is a complex process that can be difficult to master. In order to ensure that your PET preforms are of the highest quality, you need to understand the common problems that can arise during production and how to solve them.
24 de nov. de 2019 · PET preform injection molding troubleshooting is very important during the whole PET bottles making process. As the PET preforms`s quality affects a lot in the following step PET preform blowing process.
11 de dic. de 2023 · Las preformas para PET son el eslabón inicial en la cadena de producción de envases de plástico. Algunas cualidades puntuales que deben tener son: Propiedades mecánicas: garantizando resistencia y durabilidad. Estas propiedades incluyen resistencia tanto a la tracción como al impacto, y rigidez.
If the preforms have defects, it is very natural that final product will have defects. As a reputed product manufacturer, you cannot afford to produce defective pieces. Also, these defects help in analysing the faulty production. Internal Strain Testing.
The preforms are too old (they have absorbed too much moisture). SOLUTION: 1. Reduce overall preform temperature allowing the bottle to be blown closer to its natural stretch limit. Under this condition slight pearlescence may be evident. 2. Check the age of the preforms and, if over 12 months, try a more recent production batch.
27 de abr. de 2015 · Ten Tips to Slash Cycles in PET Preform Molding. Here are some tricks of the trade to make your preform processing more productive, even if you don’t have the latest souped-up press. Commodity Resins. processing tips. End Markets. pet. Packaging. Injection Molding. best practices. PET Processing.
