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At the same time, due to the high injection pressure, a correspondingly high pressure is generated in the mold cavity (the average pressure in the mold cavity is generally between 20~45Mpa), so there must be a sufficient clamping force. It can be seen that the injection device and the clamping device are the key components of the injection molding machine. There are three main aspects to the evaluation of plastic products, the first is the appearance quality, including integrity, color, gloss, etc.; the second is the accuracy of size and relative position; the third is the physical properties, chemical properties, electrical properties, etc. These quality requirements are also different according to the different occasions where the products are used. The defects of the products mainly lie in the design of the mold, the manufacturing accuracy and the degree of wear. But in fact, technicians in plastic processing plants often suffer from the difficult situation of using technological means to make up for the problems caused by mold defects and have little effect. The adjustment of the process in the production process is a necessary way to improve the quality and output of products. Since the injection molding cycle itself is very short, if the process conditions are not well mastered, there will be an endless stream of waste products. When adjusting the process, it is best to change only one condition at a time, and observe it several times. If the pressure, temperature and time are all adjusted together, it is easy to cause confusion and misunderstanding, and there is no reason for the problem. There are various measures and means to adjust the process. For example, there are more than ten possible solutions to solve the problem of dissatisfaction with products. Only by choosing one or two main solutions to solve the crux of the problem can the problem be truly solved. In addition, attention should be paid to the dialectical relationship in the solution. For example, if the product is dented, sometimes the material temperature should be increased, and sometimes the material temperature should be reduced; sometimes the material quantity should be increased, and sometimes the material quantity should be reduced. Recognize the feasibility of reverse measures to solve the problem. This article is from City Machinery Co., Ltd., please indicate the source for reprinting:
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