The adjustment of the process in the production process is a necessary way to improve the quality and output of products. Because the injection cycle itself is very short, if the process conditions are not well mastered , there will be an endless stream of waste. When adjusting the process, it is best to change only one condition at a time and observe a few more times. If the pressure, temperature, and time are all adjusted together, it is easy to cause confusion and misunderstanding. If there is a problem, I don't know the reason. The measures and means to adjust the process are various. For example, there are more than a dozen possible ways to solve the problem of product dissatisfaction, and only one or two main solutions to solve the problem can be truly solved. In addition, attention should be paid to the dialectical relationship in the solution.