Some domestic units to research and development of PET preform injection molding machine, as an ordinary middle and low-end products to research and development, change about the screw barrel as a PET injection molding machine, so that the development of the beginning on a wrong route, so engage to engage in always wandering on the low-end level. According to the authors, the PET preform injection molding equipment is high-end equipment, the development of ideas is different from the development of ordinary injection molding equipment. This problem is illustrated by the fact that none of the injection molding equipment for PET bottle blanks is made in China, which is the largest unit in the domestic PET bottle production. Although the domestic research and development has a certain amount of PET injection molding equipment, but its quality and technical level compared with the international advanced level, at least two decades. PET preform injection molding equipment is mainly related to two aspects: preform injection molding machine, preform bottle mold.ġ PET bottle preform injection molding machine in the technological progress of several issues worth paying attention toĭomestic PET bottle preform injection molding machine mainly developed single-layer PET bottle preform injection molding equipment. In this paper, the author, according to their understanding of the situation, in response to some of the above problems, put forward some ideas for reference. But we should be sober to see, the domestic PET preform plastic molding equipment into the big enterprises, like a stray soldier in the market in bits and pieces to beat, can not become climate. International excellent performance of PET bottle blank injection molding equipment continues to enter China, promoting the development of China’s PET bottles, and promote the scientific and technological progress of China’s PET bottle blank injection equipment. ![]() Black pots on pre-form, it is mainly due to injection machine barrel, part area with over high temperature and make the material bad We offer not only PET pre-form mold, also the PET pre-form molding.The present situation and development direction of PET preform injection equipment in ChinaĬhina’s PET bottle blank injection molding equipment with the development of carbonated beverage filling, with the expansion of the application of PET bottles, the PET bottle blank injection molding equipment put forward higher performance requirements. ![]() Waves for pre-form, it is due to material with strong dynamic viscosity, front area the material is cold, and later material go over on the cold surface, so makes the surface with waves.Surface not with good gloss, it is mainly due to mold surface not proper polishing, also with cooling earlier, it cause pre-form surface not same as mold surface, and with concave convex.PET pre-form with bubble, it is mainly caused by not dried material and air during injection, suggest making material with drying and open air venting for molds. ![]() Usually it would have problems like below also with solve ways. While there is technology available that combines these two processes in a single step, for larger-throughput applications pre-form and bottle making are generally made in distinct steps, often by different processors.įor transparent PET pre-form mould, sometimes we would face up to with problems during pre-form molding period. This pre-form is then reheated, stretched and blown into its final shape. In the first step, PET is injection molded into a “mini bottle,” complete with threads, called a pre-form. Processing PET into bottles can take two steps depending on the application or bottle. PET bottles are a huge market for the material.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |