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[NEWS]
The realization at the end of the screw
2012-11-28
2012-11-28
If the viscosity is lower, the conveying rate through the extruder screw is also reduced, so that with the outer ring stationary, the planetary pump would have too high of a conveying rate and an underpressure would result in the transition zone.
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[NEWS]
The conveying rate of the extruder screw
2012-11-27
2012-11-27
A screw extruder conveys on the basis of the internal friction, and produces a drag flow along the extruder screw. In contrast, a planetary pump is a volumetric conveyor, so that here the conveying rate is considerably less dependent upon the viscosity of the material that is to be conveyed.
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[NEWS]
A brief introduction about screw extruder
2012-11-26
2012-11-26
Typically, a screw extruder comprises an elongated cylinder or barrel, a feed hopper mounted on one end of the barrel, and a rotatable screw axially extending within the barrel.
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[NEWS]
The process section of the extruder
2012-11-24
2012-11-24
An extruder comprises a displacement part with a housing, inside of which at least one screw shaft is housed and which is provided, at one end, with a material entry opening for the material to be processed and, at the other end, with a material outlet opening for the processed material, and with an intermediate opening between the material entry opening and the material outlet opening for discharging gas from the displacement part.
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[NEWS]
The supply conduit
2012-11-23
2012-11-23
The extruder according to the invention is characterized in that the end of the supply conduit and ducts formed of the openings of the rotor are designed in such a way that the sum of the areas of the parts of the ducts visible at the end of the supply conduit remains substantially constant at each moment when the rotor rotates.
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[NEWS]
Upstream side of the resistive element
2012-11-22
2012-11-22
The flight of the segment included in the resistive elements is twisted in a reverse-spiral fashion for pushing the material upstream, the material transferred from the upstream side accumulates in this section.
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[NEWS]
Devolatilization section of the kneading screw
2012-11-21
2012-11-21
Since the devolatilization segment section kneads the material while devolatilizing the material, the devolatilization operation can be performed efficiently. Furthermore, since the devolatilization segment section of the kneading screw is pressure-sealed by the impregnation sections disposed adjacent to the upstream side of the devolatilization section and to the downstream side of the devolatilization segment section, the negative-pressure state for the devolatilization section can be properly maintained.
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[NEWS]
Typical continuous kneading unit
2012-11-20
2012-11-20
Generally, a composite resin material, such as a plastic compound, is manufactured by injecting a polymeric resin material and a powdery additive into a barrel of a continuous kneading unit, and then extruding the two downstream while they are kneaded with a kneading screw extending through the barrel.
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[NEWS]
Process for producing cellulosic tubular films
2012-11-19
2012-11-19
A twin screw extruder comprising: a housing having a circular tube section provided with a supply opening and an exhaust opening for a material; a screw rotatably assembled in the circular tube section, conveying the material supplied from the supply opening to the exhaust opening while kneading the material between itself and an inner peripheral surface of the circular tube section
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[NEWS]
Screw segment with a greater pitch
2012-11-16
2012-11-16
In order to simplify the equipping of the shafts, the face surfaces of the combined elements in the invention are delimited by circular arcs, which correspond to the feed screw diameter, the feed screw core diameter and are no larger than the centre distance of the axes of sheet production extruder.
