Film blowing machine ontrol methods
Film blowing machine ontrol methods

Temperature indicators and Film Blowing Machine control method: According to the theory of the plastic melt, blown film extruder screw were divided into three: the feed zone, melting, homogenizing section. The end of the feeding section, into the melting begins, according to melting theory, it should be the temperature of the viscous flow temperature. Viscous flow of blown film resin temperatures were PP :164-175 degrees Celsius, PE :105-135 degrees Celsius, PA :195-210 degrees Celsius.For the extrusion temperature control point is: different kinds of resin, blown film process at different temperatures; the same kinds of resin, and melt index of the different models, different blown film process temperature, the mobility index of large, low temperature.

Feed zone entry in the Plastic Film Blowing Machine , hoping the temperature low, to prevent the resin inlet viscous flow blocked, the other, continue to compress the resin in the feed zone, the air feed to the mouth backwards from the discharge. Depending on the device structure is different, though not for heating feeding mouth, but the heat transfer through the barrel, feed port temperature of about 50-90 degrees. Thus, to determine the feed zone temperature. Entrance to 50-90 degrees, melting point or the end of the viscous flow is equal to the temperature, the temperature can be set on the segment geometric linear warming. Melting begins, the temperature reaches the temperature to melt viscous flow, for crystalline resin, viscous flow temperature equal to the melting temperature. Then continue to compress and increase the melting layer, the temperature rising need in order to make the resin molecular chain length range, the different thermal motion energy of the polymer melt has both, and thus to the melting temperature of the end of the establishment, you can set in this section on other parts of the linear warming. http://www.wzzhuxin.com/product/list/plastic_machine/film_blowing_machine.html


film blowing machine
Film Blowing Machine
film blowing machine