(4) The plastic frit blocks the feeding channel.
Due to the local melting and caking of the plastic in the hopper dryer, the high temperature of the barrel feed section, the improper selection of the plastic grade, or too much lubricant contained in the plastic, —carrier tape in Chinese suppplier
the plastic will melt prematurely at the reduced diameter position of the feed port or in the deep groove at the screw starting end of the screw, and the granular material and molten material will bond with each other to form a “bridge” , block the channel or wrap the screw, and make circular sliding with the rotation of the screw, which can not move forward, resulting in material interruption or irregular fluctuation. This situation can be fundamentally solved only after the channel is chiseled and the block is removed.—carrier tape in Chinese suppplier