As we all know, the details determine success or failure, the best materials, even if you do not master a good detail, will be a loss. Especially fibrous PC plastic materials, in the injection molding modification process, must pay attention to the detail
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Before assembly, you should carefully study and analyze the general assembly drawing. Parts diagram, to understand the role of each part, characteristics and its technical requirements, to determine the assembly benchmark.
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1. Filling modification, Method: Resin + coupling agent + inorganic minerals,Commonly used materials.
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PC/ABS co-mingled gold
Improved performance: improved low-temperature impact performance, improved processing fluidity, improved impact resistance, enhanced heat stability of ABS
Insert molding refers to the molding method in which the mold is filled with pre-prepared inserts of different materials and then injected with resin, and the molten materials are joined with the inserts and cured to make integrated products.
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1. Injection molding machine
A). Excessive heating of plastic in the injection cylinder.
Lower the melt temperature.
The most important process conditions in the injection process are the temperature, pressure, speed, and the corresponding individual action time that affect the plasticizing flow and cooling.
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For hygroscopic materials (such as nylon), high resin moisture content can also cause screw slippage. Improper drying can significantly reduce the viscosity of the material and cause the phenomenon of air-packed material in the screw, thus reducing the co
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Detailed engineering plastics injection molding melt molding process control: after plasticization of plastic filling, holding pressure, backflow, cooling, demolding, and other processes are melt molding process.
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Plastic surface treatment such as painting, vacuum plating process will be after the pre-treatment degreasing process to remove the oil on the plastic surface.
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How to do a plastic toy injection molding, only need 5 points to complete!
Injection mold belongs to a tool for producing plastic products, through this processing method of injection mold, some products with complex shapes can be mass-produced.
Two-color injection molding refers to the molding method of injecting two different colors of plastic into the same mold. It can make the plastic parts appear in two different colors and can make the plastic parts present regular patterns or irregular clo
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Mold temperature machines can improve the molding efficiency of products, reduce the generation of defective products, improve the appearance of products, suppress product defects, speed up the production schedule, reduce energy consumption and save energ
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Green water and green mountains, is the silver mountain of gold, environmental protection issues are becoming increasingly prominent, environmental protection industry, environmental protection products have become an important direction of China's econo
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I. Plastic moulds are generally divided into (injection moulds).
1. Two-plate mold (i.e. large spout mold)
2. Three plate mold (i.e. small spout mold, fine spout, simplified type fine spout)
Transparent plastics, because of the high light transmission rate, must require strict surface quality of plastic products, there can not be any mottling, porosity, white, haze, black spots, discoloration, poor luster and other defects, and thus the entir
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The injection molding process of engineering plastics mainly includes three stages: preparation before molding, injection process, and post-treatment of plastic parts. The injection process generally includes several processes, such as material addition,
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1, mold opening, mold locking, ejector, and other actions using high-precision screw nut, transmission accuracy of 0.01mm.
2, linear guide rail, the traditional reciprocating sliding guidance into rolling guidance, improve positioning accuracy, reduce th
Vertical column-free mold locking, horizontal injection, mold open on three sides, more convenient and safer operation.
High injection pressure, torque type hydraulic motor control, high spiral torque, high pre-molding volume, system pressure controlled
Cause
1.Injection pressure or barrel temperature
2.Too much feed material
3.Too long advance time of the pump column
4.Unbalance of the feeding port in multiple writing
5.There is a depressed part in the mold
Injection molding is an engineering process that involves the transformation of plastics into useful and functional products. The important process conditions of injection molding are the temperature, pressure and corresponding work of each action that af
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When injection molding, the venting hole will not have a lot of melt oozing out, because the melt will cool and solidify at that place to block the channel.
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High-gloss, high-gloss products for injection molding enterprises is indeed more difficult to cope with product because it can not hide external defects, even the dust in the workshop can cause different degrees of defective products bad
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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 existed for a long time, the advantages of such machine settings hav
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To do a good job of injection molding machine fault management and prevention, we must master the reasons for the occurrence of injection molding machine faults, accumulate information and data of frequent faults and typical faults, carry out fault analys
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