In fact, these are the workers did not pay attention to the specific and accurate time of injection molding, generally speaking, the process of injection molding includes four different stages: filling, pressure retention, cooling and demolding. The most critical step.
Injection molding is different from other processes, its production process is very complex, each need to be extremely careful, like we choose the hard rubber outside and then a layer of words, I recommend the use of TPE material, so that the hardness will be higher, can reach more than 60A, and, materials and processes have been very mature, this time in the rubber into the point appropriate more, because the soft rubber package soft rubber will not be too pressurized. A little more into the glue point, the product into the glue requires less pressure, so that the location of the product package glue, it is less likely to go to the batch front and punch injury phenomenon.
We must pay attention to the speed of injection molding when injecting the product, the quality of the product, so we need to maintain a stable melt surface speed, in addition, if you are worried about the process of overpressure, crushing the ball shell, you can be in the mold into the design of the glue point, as large as possible, so that injection molding, the pressure will not be too large, ready to shape the important stage of the glue, but also the temperature can be low The meaning of doing so is to make the product on top of the injection machine, more fitting to our own products