Key Word: Taili Plastic Machinery; Taili Plastic Machinery-Capacity Improving Expert; Efficient; Stable; Injection Pressure; Injection Back Pressure; Mold-Holding Pressure; Clamping Pressure
Injection molding industry has a long history, but there are few articles and books about injection molding technology. Some new injection molding product manufacturer are confused by some injection molding parameters and get more confused by after consulting some injection molding machine manufacturers and mold manufacturers.
Mr. Yu of Jiangxi has just entered the industry. He was originally engaged in other upstream and downstream industries, whose injection molding parts have always been supplied by peers. Due to the increasingly low profit, he decided to purchase his own injection molding machine for production. Today, he made a phone call to Taili Plastic Machinery. As he has just started to do the business, he has only one injection molding machine and doesn’t employ a technician. He had many problems about the parameters and adjustment methods. The "four pressures" (injection pressure, injection back pressure, mold-holding pressure and mold clamping pressure) in the injection molding industry confused him a lot. Thus, he turns to Taili Plastic Machinery for help.

In fact, there’s no need to change the set parameters if you only produce one single product. However, for beginners, there are always some confusing problems. It is better to know more about parameters than not.
1. Injection Pressure
Injection pressure is the pressure applied in order to fill the cavity with raw materials. Generally, the adjustment of injection pressure is related to the specific style of the mold and the product. When the machine is just started, the injection pressure and injection rate can be slightly adjusted to reduce the scrap rate and loss rate of product. As the normal production of the machine begins, the parameters are better not to be changed with the proper machine and mold.
2. Injection Back Pressure
Injection back pressure refers to the pressure on the injection molding machine in the storage process. Injection back pressure will affect the surface accuracy of plastic products, product quality (catalysis), etc.
3. Mold-Holding Pressure
The mold-holding pressure is usually used by the end of injection. Before the gate is completely closed, the material is continuously filled into the cavity to improve the surface precision and the product quality, and effectively reduce the production of vacuum bubbles.
4. Clamping Pressure
Contrary to the injection pressure, in order to prevent the mold from being pushed open during the injection process, a reverse clamping pressure is needed to mold the product. Generally, in the process of adjusting, it is necessary to reduce the clamping pressure as much as possible, which is of great benefit to the service life of the machine and the mold.
Taili Plastic Machinery always keeps in mind that what a good injection molding machine factory should do is to help improving the capacity and boosting the profits, rather than offer the similar products the customers need. This is also what Taili Plastic Machinery keeps doing.
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