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VENTED TWIN-SCREW KNEADING EXTRUSION APPARATUS AND EXTRUSION METHOD
VENTED TWIN-SCREW KNEADING EXTRUSION APPARATUS AND EXTRUSION METHOD
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机译:排气双螺杆挤出机及其挤出方法
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摘要
According to the present invention, devolatilization of a synthetic resin formed from a polymer or synthetic rubber can be improved and the synthetic resin can be foamed at a low temperature by injecting a devolatilization agent through a devolatilization agent injection nozzle provided in a downstream end segment cylinder of a cylinder assembly. In a vented twin-screw kneading extrusion apparatus and extrusion method according to the present invention, a devolatilization agent, which is injected through a downstream end devolatilization agent injection nozzle (7c) provided on a downstream end segment cylinder constituted by a segment cylinder (1g) positioned on a downstream end of a cylinder assembly (1), is dispersed in molten resin in the downstream end segment cylinder (1g) and kneaded by a downstream end kneading portion (6c) such that the molten resin is foamed by the devolatilization agent and then extruded.
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机译:根据本发明,通过从设置在下游端部圆筒中的脱挥发剂注入喷嘴注入脱挥发剂,可以改善由聚合物或合成橡胶形成的合成树脂的脱挥发分,并且可以在低温下使合成树脂发泡。气缸总成。在根据本发明的排气双螺杆捏合挤出设备和挤出方法中,脱挥发分剂通过下游端脱挥发分剂喷嘴( 7 B> c I> )设置在由位于气缸总成( 1 B>)下游端的分段气缸( 1 B> g I>)组成的下游端分段气缸上将其分散在下游端段圆筒( 1 B> g I>)中的熔融树脂中,并由下游端捏合部分( 6 B> )捏合c I>),以使熔融树脂被脱挥发分剂发泡,然后挤出。
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