Process of PET Injection Molding Machine

What is the entire process of PET injection molding machine? Let us examine some of the features and benefits of this machine. What is the difference between a traditional PET injection molding machine and the PET injection molding machine with a screw-type ejector? Read on to find out! After all, PET injection molding machine can make a variety of products including bottles, jars, and caps. They are designed to produce plastic bottles, jars, and caps with high quality and durability.

The whole process of injection molding is quite complicated. The exact method depends on the project that you want to produce. Different factors like the part design, wall thickness, and cored-out part should be taken into consideration. The polymer itself also has to be evaluated to find the right mixture of additives, colors, and other features. The molding machine has many features to consider. If you’re designing a PET jar or a bottle, you need to look at the overall design.

The process of PET injection molding involves three different steps: the initial setup, the injection phase, and the ejection phase. The first step involves preparing the mold. This process involves placing plastic into the mold and holding pressure until the V-P switchover point is reached. The second step is the eject phase. Here, the molding material is pushed into the mold with pressure applied. Then, it is cooled and clamped into the mold again for the next injection.

The Whole Process of PET Injection Molding Machine

After the plastic is injected into the mold cavity, post-processing is required. The operator must separate the usable part from the unwanted runner, which is also known as regrind. This waste material can be recycled by using a plastic grinder, which is also called a granulator. The scrap material is crushed to a fine powder, and mixed with raw material using the correct regrind ratio.

Temperature is another factor to consider. Too high a temperature can cause material degradation and impact the product’s performance. A low temperature can cause depression, and a high temperature can result in nozzle salivation and spill. Moreover, it can decrease the material’s mechanical strength. So, if the plasticizer is not heated properly, the material will not be processed properly. The process is complete in about four seconds.

The screw and the nozzle are also important parameters to consider. Different parameters control the speed, force, and color of the plastic. These parameters are crucial for the quality of the injected product. To ensure a high quality and consistent product, it is crucial to ensure that the parameters of the machine are properly adjusted. If the parameters are not properly configured, the injection machine will fail to perform as expected. Besides, the tonnage of the machine is also a factor to consider.

The entire process of PET injection molding machine involves two main stages. The first part is the molding stage. It is characterized by a clamping unit that forces the two mold halves together to form a solid plastic part. This part may shrink during the molding process, but packing the material during the injection stage reduces visible shrinkage. During the second stage, the mold cannot be opened until the cooling time required has passed. You can calculate the required time of cooling by studying the thermodynamic properties of the plastic. The maximum wall thickness of the plastic is also an important factor.