Changshu da plastic products factory to talk smoothly under the plastic extruder screw parameters

Screw is an important part of the plastic extruding machine, often we choose and plastic extruding machine on the technical parameters of the screw diameter ratio is particularly important, probably for most just friends into line with the screw diameter ratio is a relatively uncommon professional term, feel very fuzzy. Changshu well below da plastic products factory talk about the plastic extruder screw parameters!



for plastic extruder screw whole parameter L/D— — Pros: length to diameter ratio L/D L/D and rotational speed n, is the screw plasticizing capacity and important factors effect, L/D is material stay in the barrel for a long time, is advantageous to the plasticizing, flow pressure, leakage flow decrease at the same time, improve the ability of plasticizing, as well as higher requirements on the temperature distribution of material benefit, but the big, to use and have a negative impact on manufacturing and assembly, general L/D for the ( 18 - — 20) , but now has a tendency to increase.



screw diameter of twin-screw granulator is an important technical parameters, its size in a certain extent, show the size of the twin-screw granulator production capacity; The longer the screw diameter, the bigger the manufacturing capacity. Screw diameter refers to the screw diameter, use D to say, the unit is mm, single screw granulator is the same truth! Screw length to diameter ratio refers to the length of the threaded screw part ( The screw length) And the ratio of the screw diameter, expressed with L/D, which L is the effective length of the screw, D said the screw diameter. For meshing synthetic building blocks type twin-screw granulator, due to the screw length to diameter ratio can be adjusted, thus the length to diameter ratio on the plastics extrusion product samples should be refers to the largest possible length to diameter ratio. Screw length to diameter ratio is an important technical parameters, is to point to in a certain sense it represents the twin-screw granulator can accomplish specific production task and the ability to function, Feed rate and screw revolution, combined) , also can reflect the size of the production capacity.



but it should be pointed out that length to diameter ratio in a single screw granulator is less important, in addition to apply to a specific task, the longer the long hengjing has not the greater production capacity. Actually the screw length is suitable for the production capacity, which is closely linked to master the technical parameters of the screw, can choose a suitable for your production capacity of plastic extrusion equipment