Plastic parts processing technology and the influence of the number of mold trials
Edit time: 2021-11-11         source: Xiaxin official website         Views: 785

The molten plastic particles are formed into injection molded parts during the injection molding process. This process is still relatively complicated. This requires attention to the process parameters of some injection molded parts. The quality requirements of the injection molded parts have been guaranteed. Then the plastic parts processing technology needs to pay attention to those process parameters Woolen cloth.

1. Plastic parts molding cycle, which includes plastic time and product cooling time. These times have a great influence on the quality of the product. Before the plastic parts are processed and produced, we should determine the product molding through the style of the sample and other methods. cycle.

2. The temperature of the plastic mold, different plastic particles, their crystallization temperature and speed are different, and the appearance, deformation, size, rubber mold, etc. of the product have different requirements, which all make the temperature of the plastic mold In the case of using different plastics, product requirements, etc., the control of the mold temperature is different.


3. Molten plastic injection pressure. The plastic has great resistance during the process of filling the mold cavity. This makes the injection pressure directly determine the size, weight, density, and appearance of the product.

  4, the injection speed, the speed of the injection speed has an important influence on the appearance quality of the product, the injection speed generally needs to be achieved by adjusting the amount of oil supplied to the injection cylinder per unit time.

  Injection mold.
  5. The temperature of the barrel and the temperature of the melt. The temperature of the melt can be measured at the nozzle or by the air jet method. The melt temperature plays a major role in the flow properties of the melt. The plastic has no specific melting point. The so-called melting point is a The temperature range in the molten state, the control of the two temperatures also plays an important role in the quality of the product.
  The process parameters that need to be paid attention to in the processing of plastic parts generally include the above. These process parameters are not distinguished between primary and secondary. Each factor is very important to the quality of plastic products. , Different types of plastics and other product information, to reasonably formulate process parameters.

1. The injection mold design has not undergone sufficient collective review, and the structure of the injection mold is unreasonable, which makes the injection mold need to be improved many times after the test, which makes the cost of the injection mold exceed the budget.

   If it can be done after several improvements, it is fortunate. There are many cases where it is not satisfactory. Even if the injection mold has to be scrapped and remade, the cost cannot be controlled.

In some cases, the injection mold design is very good, but the injection mold processing is not in place, which makes the number of trial molds increase for no reason, which directly increases the cost of the injection molding process injection mold. There is no objection to this issue, so many injection mold manufacturers increase Investment in measuring equipment.

  2. The correct molding process and injection molding machine model were not selected when trying out the mold. The injection molds are clearly doing well, but the injection molded products are not ideal. The number of mold trials is increased for no reason, which directly increases the cost of the injection mold. A common problem in small injection mold factories.

3. The physical properties of plastics are not fully understood, and even the shrinkage rate is not accurate. Such situations happen from time to time. Therefore, the physical properties of plastics must be understood before designing injection molds in order to be effective. Reduce the number of mold trials.

   The plastic industry is a serious waste of energy. Due to the high cost of electricity, electricity occupies a large proportion of the production cost of enterprises, which has become an important factor in the production efficiency of enterprises.

With the intensification of market competition, companies are adopting various energy-saving measures to reduce production costs and increase market competition. They can customize products according to the user’s injection molding machine motor power, motor speed, pump displacement and system pressure to meet all specifications. The equipment, installation process and ordinary molding machine are convenient and simple, and are welcomed by the general plastics industry. They not only reflect the country's energy saving and emission reduction, but also energy saving and consumption reduction, but also bring considerable economic benefits.

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The injection molding process parameters are fully prepared

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