注塑成型是一个循环的过程，每一周期主要包括：定量加料—熔融塑化—施压注射—充模冷却—启模取件。取出塑件后又再闭模，进行下一个循环。注塑机操作项目包括控制键盘操作、电器控制系统操作和液压系统操作三个方面。分别进行注射过程动作、加料动作、注射压力、注射速度、顶出型式的选择，料筒各段温度的监控，注射压力和背压压力的调节等。
Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - filling cooling - opening parts. After removing the plastic parts, the mould is closed again for the next cycle. The operation items of injection moulding machine include three aspects: control keyboard operation, electrical control system operation and hydraulic system operation. The selection of injection process action, feeding action, injection pressure, injection speed, ejection type, temperature monitoring of each section of the barrel, injection pressure and back pressure adjustment are carried out respectively.