| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an extruder which can prevent undissolved lumps from being formed because of pellets being in close contact with each other, to stabilize the supply (engagement) of the pellets.SOLUTION: An extruder comprises a cylinder that guides material, a rotatable screw inserted into the cylinder, and a vibration generating device that vibrates the screw at a predetermined vibration frequency in the cylinder axial direction.</p> |
