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A warm welcome to all of you and many thanks for your attention at this opening ceremony of the new plant of our highly appreciated customer....
The shrinkage coefficient of each material is different, and the plastic mold must have a reasonable shrinkage rate. The plastic mold must have sufficient rigidity, otherwise it will deform during clamping and holding pressure, causing "flash". If the product is ejected while opening the mold, the ejector page of the injection molding machine can be set (but some injection molding machines do not have this function)....
The standards for mold acceptance are mainly divided into the following aspects: First, there are 15 main points in terms of mold appearance, and then 9 main points in terms of mold packaging and transportation. Next, Lingzhong manufacturers will do it for you. Introduce in detail the acceptance points of mold appearance and packaging and transportation...
Driven by the drive system, the screw conveys and compacts the material from the hopper. Under the combined action of the heater, the screw and the barrel of the barrel, the material gradually melts. The part has accumulated a certain amount of molten plastic. Under the pressure of the melt, the screw slowly retreats. The retreat distance depends on the amount required for one injection of the metering device to adjust. When the predetermined injection volume is reached, the screw stops rotating and retreats ....
Product color difference in plastic mold processing plants is a common shortcoming in injection molding. ``It is not uncommon for injection molding machines to be scrapped in batches due to different colors of matching parts. Color difference affects many factors, involving the mixing of raw material resin, color masterbatch, and the same material of color masterbatch. Injection molding products, injection molding machines, molds, etc., because of the wide range of involvement, so the color difference control skills are also recognized as one of the difficult skills in injection molding....
High processing accuracy requirements: a mold is generally composed of a female mold, a convex mold and a mold base, and some may also be a multi-piece split module. Therefore, the combination of upper and lower molds, the combination of inserts and cavities, and the assembly of modules require high machining accuracy. The dimensional accuracy of precision molds often reaches the μm level...
In the continuous working process of the mold, due to the wear of the parts, deterioration of the lubricant, water leakage, and crushing of the plastic material during the movement process, the mold needs to be maintained....
Molds have a wide range of uses, and there are many types of mold R&D and design. Scientifically classify molds, develop the mold industry in a planned way, systematically research and develop mold production technology, promote the modernization of mold R&D design and manufacturing technology, and give full play to the functions of molds And role; it is of great significance to research and formulate mold technical standards, improve mold standardization level and specialized collaborative production level, improve mold production efficiency, and shorten mold manufacturing cycle....
Precision injection molding will be affected by many related factors and environmental conditions, and the most basic are the basic factors of plastic materials, injection molds, injection molding processes and injection molding equipment. In the early stage of designing plastic products, first select engineering plastics that can be needed according to the environment. Secondly, the selected plastic material, finished product dimensional accuracy, part weight, quality requirements and expected mold structure are used to select the appropriate injection molding machine....
