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Fax: +86-580-8053150
Mobile: +86-15958096992
Email: sales@jlscrew.com
tracy@jlscrew.com
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date：2013/8/268
a, screw rotation speed directly affects the plastic shear in the screw slot;
b, small screw groove shallow absorption heat quickly enough to promote plastic softening in compression time, the screw and barrel wall of the lower heat of friction, suitable for high-speed rotation, increased plasticizing capability;
c, large screw rotation is not fast, so as not to cause excessive friction plastics and uneven heat;
d, the higher the heat-sensitive plastic, screw speed too much, then, the plastic can easily break down;
e, usually of a certain size screw speed range, the general speed of 100 \ '150rpm; too low you can not melt the plastic, too much plastic will be burned.
b, small screw groove shallow absorption heat quickly enough to promote plastic softening in compression time, the screw and barrel wall of the lower heat of friction, suitable for high-speed rotation, increased plasticizing capability;
c, large screw rotation is not fast, so as not to cause excessive friction plastics and uneven heat;
d, the higher the heat-sensitive plastic, screw speed too much, then, the plastic can easily break down;
e, usually of a certain size screw speed range, the general speed of 100 \ '150rpm; too low you can not melt the plastic, too much plastic will be burned.
