I. Analysis of the causes of cracking of injection molded products,Cracking, including filiform cracks on the surface of the part. Microcrack. Top white. Cracking and due to mold sticking. Flow channel...
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Visible defects on the surface of injection molded products include dark spots, gloss differences or fogged areas, surface wrinkling, or what is known as orange peel. Usually, these defects occur near...
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Therefore, how to ensure the normal and stable operation of injection molding machines in continuous production is a problem worthy of attention and effort for both injection molding machine manufacturers...
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For an injection molding factory, the energy consumption occupied by the injection molding process accounts for about 60%, thus effectively reducing the energy consumption of the injection molding machine...
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1. Injection molding machine,A. Excessive heating of plastic in the injection cylinder,Lower the melt temperature,B. Temperature controller is not operating properly,Check that the temperature controller...
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In the design of the point gate in the vertical direction of the part, a radiation system consisting of different color depths and luster, called glow lines, appears on the surface of the part during injection molding...
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I. Description of disadvantages,The disadvantages of injection molded parts refer to the failure of the injection molded parts to meet the original design, use and other quality requirements of the injection...
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Temperature,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 pick points or lines...
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Injection Nozzle,The molten glue usually flows from the shot nozzle into the injection port, but in some molds, the shot nozzle is part of the mold because it extends to the bottom of the mold. There are two main...
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To ensure the normal operation of the injection molding machine, reduce the occurrence of faults, and maintain the high performance of the injection molding machine. Service life. In order to ensure...
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Drooling,a. Incomplete drying of the material or moisture in the material,b. Pre-molding speed (screw speed) is too fast,c. Nozzle temperature is too high,d. Bad material return (powder)...
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The low-pressure injection molding process is a system packaging process method that injects hot melt material into the mold with very low injection pressure (1.5 to 40 bar) and cures the mold quickly...
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The four stages of filling, holding pressure, cooling and demolding tell you - what is the plastic injection molding process,The plastic injection molding process mainly includes four stages...
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I. Injection mold,1. If the mold cavity processing is poor, such as scars. Micro-hole. Wear and tear. Roughness and other deficiencies will inevitably react to the plastic parts, so that the plastic parts luster...
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PC plastic injection molding process with air bubbles is very serious, in the mold design should pay attention to the problems (including the design of the product) in order to prevent the appearance of poor...
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Temperature,Temperature measurement and control are very important in injection molding. Although it is relatively easy to make these measurements, most injection molding machines do not have sufficient temperature pick-up points or lines...
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The color difference is a common defect in injection molding, and it is not uncommon to see batch scrapping of injection molding machines due to the color difference of matching parts. Many factors are affecting...
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Overflow (flying edge),Overflow, also known as flying edge, overflow edge, phi front, etc., mostly occurs in the mold score fit position. Such as the mold parting surface, the sliding part of the slider...
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1. Processing of plastic,As PET macromolecule contains lipid group, it has certain hydrophilic, the granule is sensitive to water at high temperature when the water content exceeds the limit, the molecular weight of PET...
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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 rate of the cooling medium...
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Nowadays, the trend of processing process is developing in the direction of high technology, these technologies include: micro injection molding, high filling compound injection molding, water-assisted...
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Proportional control of injection speed has been widely adopted by injection molding machine manufacturers. Although computer-controlled injection speed segmentation control systems have...
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Before injection molding a new mold or when the machine is replaced by another mold for production, mold trial is an essential part. The result of the mold trial will directly affect the smoothness...
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1) Inconsistent molding conditions or improper operation,When injection molding, the temperature, pressure and time, and other process parameters must be strictly controlled in accordance with the process requirements...
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The wavy pattern on plastic parts,When the dissolved plastic pushes the cured part forward due to the narrow gate or other parts, the surface will have a wavy pattern...
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