The screw of the injection molding machine has excellen […]
The screw of the injection molding machine has excellent mixing and plasticizing ability, and the material stays in the extruder for a short time, which is suitable for powder processing. The screw of injection molding machine has the characteristics of large output value, fast extrusion speed, and low output value and energy consumption. However, there are often small episodes in the use of the injection molding machine screw, such as screw breakage. Let's analyze why the screw of the injection molding machine occurs.
1. The quality of the injection molding machine screw itself is poor.
2. The length-diameter ratio of the screw is too large.
3. There is a problem with the screw installation and fixation. (The installation should be installed by professional technicians, or guided by the side).
4. If the barrel temperature is set low, the shear force of the screw rotation is too large.
5. When the injection molding machine is cold started, the viscosity of the raw material in the barrel is too high.
6. There are too hard metal or non-metal impurities in the raw materials used.