Why should water be added before the extruder is puffed?

1. Change the physical properties of the material and improve the puffing rate and quality
During the operation of the extruder, adding a certain amount of water will increase the moisture content of the material. This can change the physical properties of the material and improve the puffing rate and quality. After the material is added with water, the water will be quickly heated and evaporated to form steam. These steams form pressure inside the machine and expand the material instantly.
2. Reduce the heat and noise generated when the machine is running

Adding water before the extruder is puffed is to reduce the heat and noise generated when the machine is running. The instantaneous puffing of the extruder requires very high temperature and pressure, and the heat inside the machine will continue to accumulate. If it is not discharged in time, it will bring danger to the use of the machine. After adding water, the water will absorb part of the heat, so that the temperature inside the machine is reduced to a certain extent. In addition, adding water can also play a lubricating role in the process of friction and movement, reducing the noise generated when the machine is running.
3. Precautions
When adding water, the amount of water needs to be controlled. Do not add too much or too little, otherwise it will affect the puffing effect and quality. If the water is added unevenly, it will also have a negative impact on the normal operation of the machine. In the operation of the extruder, it is also necessary to make appropriate adjustments according to the specific conditions of the material to achieve the best puffing effect and quality.
[Conclusion] Adding water before the extruder puffs can change the physical properties of the material, improve the puffing rate and quality, and also reduce the heat and noise generated when the machine is running. Therefore, adding water is a very necessary step in the operation of the extruder.