There are many factors affecting the cooling of the injection mold, such as the shape of the plastic part and the design of the parting surface, the type, temperature, and flow...
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Gas-assisted injection molding technology is an emerging plastic injection molding technology. Its principle is to use high-pressure gas to create a hollow section inside the plastic...
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Reasons and solutions for air bubbles in injection-molded PP Products with air bubbles in injection-molded PP.PP bubbles to solve problem one.1. Improve the mold temperature, reduce...
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I. Analysis of the causes of cracking of injection molded products
Cracking, including the surface of the parts filamentary cracks, microcrack, top white, cracking and caused...
Under-injection, also known as short shot, under-filling, under-filled parts, commonly known as under-injection, refers to the phenomenon of partial incompleteness...
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General product surface gloss defects can be divided into the following three kinds: mold failure, improper control of molding conditions, improper use of molding materials...
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Automotive bumper is one of the larger trim parts on the car, which has three main functions: safety, functionality and decoration.There are three main ways to achieve light-weighting...
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PE is a crystalline raw material, with very little moisture absorption, not more than 0.01%, so there is no need to dry before processing. PE molecular chain is flexible, the...
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Secondary injection molding, like co-injection molding, dual-injection molding, and sandwich molding, is all part of multi-material injection molding technology. The basic idea of...
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The reason why all-electric injection molding machine is popular in the market is that it has a performance that cannot be achieved by an all-hydraulic injection molding machine, mainly in the following aspects.
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I. Terminology explanation,Cracks on the surface of molded products are called cracks.Second, failure analysis and troubleshooting methods,1.Residual stress is too high. In the mold...
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Because plastic has the advantages of a lightweight, good toughness, easy molding. Low cost and other advantages, so in modern industry and daily-use products, more and more use of plastic...
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Temperature measurement and control are very important in injection molding. Although it is relatively simple to make these measurements, most injection molding machines do not have adequate...
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Melt rupture leads to scorching,When the melt is injected into a large volume cavity at high speed and high pressure, it is easy to produce melt rupture phenomenon, at this time, the melt surface...
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The two most important processes of two-color injection molding are filling and pressure-holding, below, we will tell you how to control the pressure in two-color injection molding...
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1. Difficult to take off the material from the sprue,During the injection process, the sprue sticks in the sprue sleeve and is not easy to be taken off. When the mold is opened, the product...
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Plastic product design: mainly the wall thickness of plastic products. The greater the thickness of the product, the longer the cooling time. Generally speaking, the cooling time is proportional...
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Principle,This process adopts resist transfer ink, screen printing decorative pattern on decal paper, transferring the decorative pattern ink to the mold by the lamination method...
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Precision injection molding is characterized by,The dimensions of injection molded parts require high precision and small tolerance.To achieve the requirements of precision injection molding...
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Some plastic parts are swollen or blistered on the back of the metal insert or in particularly thick parts soon after molding and demolding. This is because the plastic not completely cooled...
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Purpose: To establish the criteria for approving molds from three aspects: mold structure, quality of rubber parts and requirements of injection molding process, according to which...
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A, injection molding machine temperature rise too high reasons,(1) The volume of the oil tank is too small, the cooling area is not enough, the cooling device but its capacity is too small.
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A, grinding and polishing before preparation,1, grinding and polishing personnel must be trained and qualified by the examination to obtain an induction certificate before starting work.
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Reasons for gas generation during product manufacturing,1). The material in the feeding system is entrained with gas or the original air in the cavity, and the gas in the runner...
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Temperature measurement and control are very important in injection molding. Although it is relatively simple to make these measurements, most injection molding machines do not have...
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