The injection molding technology has been developed worldwide since the end of the 19th century. It is mainly used for producing plastic parts at high speed rate and massive scale with low cost. Injection molding technology is an important and essential part of the manufacturing process in many industries. In the process of injection molding, injection molding machines are used to melt plastic granules or resin pellets and inject the molten material into a mold by using a plunger or screw to obtain a desired molded shape. The injection molding process has many steps including injecting molten plastic into a mold, cooling the plastic until it is solid, and opening the mold to release the plastic part from the mold. In order to increase the efficiency of the injection molding process and produce high quality plastic products, a good control of the process parameters is essential.
在19世纪末以来，注射成型技术在世界范围内得到了发展。它主要用于以低成本、高速率和大规模生产塑料零件。注射成型技术是许多行业生产过程中的重要组成部分。在注射成型过程中，使用注射成型机将塑料颗粒或树脂颗粒熔化，并通过柱塞或螺杆将熔融材料注入模具，以获得所需的成型形状。注射成型过程有许多步骤，包括将熔融塑料注入模具、冷却塑料直至其凝固、以及打开模具以释放塑料件。为了提高注射成型过程的效率并生产高品质的塑料产品，良好的过程参数控制至关重要。
