Plastic product structure design Key points of plastic product structure design Holes that are parallel to the opening direction of the mold are usually formed with a core (can be inlaid or extended) or by punching or inserting. Holes that are not parallel to the opening direction of the mold are usually made with rows […]
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Weld mark formation mechanism Weld marks (also called water lines) are intersection marks formed when molten plastic flowing out of gates at different locations in the mold converges. The reason for the formation of weld marks is that the temperature, pressure, and speed of the molten material flowing out of each gate are not completely
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Appearance method:Appearance identification mainly observes the appearance characteristics of plastic products through vision, touch, smell, etc., such as the shape, transparency, color, gloss, hardness, etc. of the product. After plastics are recycled and reprocessed, the color, gloss, strength, etc. will change. The color of plastics without recycled materials will generally be more transparent, and products
Three methods to detect internal stress of injection molded parts Plastic internal stress refers to an internal stress generated during the plastic melting process due to factors such as the orientation of macromolecular chains and cooling shrinkage.When the forces and entanglements between macromolecular chains cannot withstand this kinetic energy, the internal stress balance will be
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Injection molding principle Taking the plunger injection machine as an example, the granular or powdery plastic is first fed from the hopper of the injection machine into the barrel equipped with a heating device for heating, melting and plasticization to turn it into a viscous flow melt, and then in the column of the injection
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The layout of the production workshop focuses on two aspects: to meet production needs, to optimize the layout according to the production process, and to meet the requirements for flexible energy use under specific production conditions. The injection molding machine is a major energy consumer in the injection molding workshop, and the energy consumption is
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When the injection molding factory tested the mold before production, all the mechanisms were running basically normally, but the product had serious appearance quality problems, with radial white marks on the surface. And these white marks became more serious as the glass fiber content increased, This phenomenon is commonly known as “floating fiber”, which is
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The first-level maintenance of injection molds refers to the daily maintenance of injection molds by operators during production. The main contents are cleaning, lubrication and inspection.
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What issues need to be paid attention to when producing PC polycarbonate products? PC has excellent performance, high transparency, good impact toughness, creep resistance, and wide operating temperature range. Process characteristics of PC: The melt viscosity is less sensitive to shear rate, but more sensitive to temperature, has no obvious melting point, the melt viscosity
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The proportion of plastic materials in our daily life is getting higher and higher, and the requirements for their quality are also getting higher and higher. As an important production method, injection molding is becoming more and more urgent to improve technology, and the influencing factors of injection molding products. There are many, and the
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Industrial connectors are specifically designed to create a rugged Ethernet connection in harsh environments, making them tougher, stronger and more resistant than conventional connectors. Its application is not only limited to manufacturing but also used to withstand the test of the harshest industrial environments. For example, under vehicle conditions, adapting to strong vibration environments is
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