device held in melted material for thermoplastic polymers or rubber extruders for working

摘要

it is proposed a device kept extremely effective for the end of a screw of extrusion on the side reducer by means of very simple and resistant to wear and tear.parts subject to wear and tear, should not be used, and the use of the sealing agent should not produce any adverse effect.the seal is renewed continuously to prevent the deposition of the material which may cause disruption of the exercise.this task is solved by the provision of a feeding section for feeding granules combined with a compression section.to generate a pressure of the melted material.a section of the pump to maintain the pressure generated in the molten material and a section in the annular channel with a blister of closure in order to generate a high pressure zone.