What is the difference between the process of feed puffing machine?

                Open the pressure relief hole in the pelletizing end of the extruder is to reduce the degree of expansion and increase the density of feed a more direct measure, in the production of puffed floating feed, the feed mixture through the extruder screw depth of kneading and arrived at the pelletizing end.

  
                Due to the high temperature and high pressure produced in the extruder, a large pressure difference is formed inside and outside the pelletizing die, the feed is released from the die due to the sudden release of pressure, thus producing an expansion effect, and after opening the pressure relief hole, the pressure difference between inside and outside the die is reduced, thus reducing the expansion degree of the feed, thus increasing the compactness of the feed, and better sinking effect can be achieved.