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挤出机操作工在设置料筒各温控段温度时,通常不按所推荐的树脂加工温度来进行设置,挤出机料筒各温控区段的温度设置低于树脂熔融要求温度的情况并不少见。当处于这种加工温度条件下时,控制挤出温度完全取决于螺杆的几何构造,以及由螺槽深度、螺棱与料筒间隙及螺杆旋转剪切产生的粘性热。
Extruder operator in setting the barrel of the temperature control section temperature, usually not according to the recommended resin processing temperature to set the extruder barrel temperature control section is set lower than the resin melting temperature requirements Not uncommon. Controlling the extrusion temperature at this processing temperature depends entirely on the geometry of the screw as well as the viscous heat generated by the screw groove depth, the pitch and barrel clearance, and the rotational shear of the screw.