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What factors will affect the lifespan of plastic molds?
The service life of a mold refers to the total quantity of production that can be processed by the mold while ensuring the quality of the processed product parts. It includes the service life after multiple grinding of the working surface and replacement of vulnerable parts. Mingyang Yutong leads everyone to take a look at what factors can affect the lifespan of plastic molds?
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2023
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How to avoid the shrinkage mark in Injection mold construction processing?
How to avoid the shrinkage mark in Injection mold construction processing? The shrinkage at the thicker part of the two-color Injection mold construction, such as rib or protuberance, is more serious than that at the adjacent part, because the cooling speed of the thicker area is much slower than that of the surrounding area. The different cooling rates lead to the formation of depressions at the connection surface, which is called shrinkage marks. So how do we solve this problem? Mingyang Yutong dual color mold expert comes to tell you:
Characteristics of Gas Assisted Injection Molding and Injection Molding
The characteristics of gas assisted injection molding and injection molding are that the general injection molding method requires the wall thickness of the plastic part to be as uniform as possible, otherwise defects such as shrinkage holes and depressions may occur at the wall thickness. For thick wall crabs, Dongguan Machike Injection Molding Plant needs to strengthen the pressure maintaining and feeding time in order to prevent depression. However, if the thick wall is far away from the gate, even if the pressure is excessively maintained, it is often difficult to work. At the same time, due to excessive pressure retention near the gate, residual stress increases, which can easily cause warping, deformation, or cracking of the crab parts. Foreign countries have adopted a new process of gas assisted injection molding, which effectively solves the injection molding problems of plastic parts with uneven wall thickness and hollow shells. In addition, gas assisted injection molding has other characteristics. At present, the new process of gas assisted injection molding and injection molding is gradually being promoted and applied.
UV treatment for surface treatment of plastic injection molded parts
UV treatment is a surface treatment process for plastic injection molded parts. Generally, after UV treatment, the surface of plastic injection molded parts can have a brighter surface effect and are not easily scratched. The main process is to spray a layer of transparent oil on the surface, which needs to be dried by ultraviolet light. Below, we will explain what to pay attention to when UV treatment is applied to plastic injection molded parts:
Discussion on uneven gloss of plastic mold products
Due to poor distribution of pigments or fillers, the color of plastic or pigment discoloration on the surface of plastic parts is uneven. The reasons for uneven color vary depending on the phenomenon presented. The uneven distribution of pigments near the feeding port is mainly caused by poor thermal stability of the plastic when the color of the entire plastic part is uneven, and the uneven color of the fusion joint is related to the properties of the pigments.
What should be noted during plastic injection molding operations?
What should be noted during plastic injection molding operations? Many friends outside the industry are not very clear. Qiang Ren specializes in plastic injection molding and has rich industry experience. Below, Qiang Ren will tell you what to pay attention to when operating plastic injection molding.