Reciprocating single screw extruder application cut a striking figure角
Date:2014/4/1 Information Source:本站 Hits:2202
With the rapid development of the plastics processing industry of polymer material industry, reciprocating single screw extruder developed applications increasingly attract people's attention. The dominant in the extrusion industry of single, twin screw extrusion machine many aspects of performance has been unable to meet the blending modification, filling, reinforcement, toughening the requirements. The use of reciprocating machine production, high technology content, high added value products of single screw extruder has gradually become a trend.
The dominant in the extrusion industry of single, twin screw extrusion machine many aspects of performance has been unable to meet the blending modification, filling, reinforcement, toughening the requirements. The use of reciprocating machine production, high technology content, high added value products of single screw extruder has gradually become a trend. In a machine, can mix, mixing, plasticizing, dispersion, shear, tensile, degassing, granulation, interfacial area makes the melt flow in the machine is far greater than the shear flow in general.
In the process of any polymer. Give the processing properties of polymer certain or impart specific performance. Often need to mix blend or between different polymer between the various additives, pigments. To overcome the intermolecular partial gel particles may have or at the end of the molten resin. The reciprocating single screw intensive mixer just has the characteristics of uniform, high shear dispersion, high filling, tensile melts.
Reciprocating single screw extruder, the unique design of the building block type screw block in a pitch off three times in the screw mandrel, called the mixing screw block, corresponding to the gap, in the machine barrel bushing, arranged with three rows of mixing pin, screw in the radial rotation, do reciprocating axial and. Rotates a circle, axial movement of a mode of motion, because of this special, and mixed picking screw block and pins, material not only in the mixing of pin and irregular trapezoid mixing blocks cut and reciprocating conveying, countercurrent and the movement of materials to radial mixing with non axial mixing is often useful the melt, constantly cut, flip, kneading and tensile, regularly interrupted laminar shear mixing simple, different from ordinary single, double screw extruder.
Due to the radial and axial mixing, enhance the mixing effect, ensure the dispersive mixing and distribution of the best mixture, so all of the time. In addition, the mixing of pin and screw block mesh with each other, but also improve the barrel self-cleaning ability. By proper combination screw block, can guarantee the stability of the working pressure, does not produce the fluctuation of pressure and temperature can not control, prevent the material degradation in barrel. Because the screw kneading elements are interrupted, so the pressure on the polymer is very small, do not produce significant temperature rise.
Single, twin screw extruder at high shear and high radial pressure thin layer of polymer melt shear, is bound to produce high temperature, low temperature impact material extrusion principle, compared with other machine. In the condition of the same diameter. Its length is short, transmission torque in a short distance.
Reciprocating single screw mixer has the advantages of single, double screw extruder extrusion machine, the working principle of the one and only, plus a set of screw elements and ancillary equipment, its application more widely, with the rapid development of the plastics processing industry of polymer material industry, reciprocating single screw extruder developed application gradually cut a striking figure.