The role of the homogenizing section of the extruder of the melt-blown cloth machine

The function of the homogenization section (metering section) is to feed the molten material into the machine head at a constant volume (quantitative) and constant pressure to form it in the die. The screw groove volume of the homogenization section is the same as that of the feeding section. In order to prevent the material from staying at the dead end of the screw head and causing decomposition, the screw head is often designed to be conical or semi-circular; some of the homogenization section of the screw sweat is a completely smooth rod body called a torpedo head, but there are Grooved or milled into patterns. The torpedo head has the functions of stirring and controlling materials, eliminating the pulsation (pulse) phenomenon when flowing, and increasing the pressure of the materials, reducing the thickness of the material layer, improving the heating status, and further improving the screw plasticization efficiency. This section can be 20-25% of the total length of the screw.