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METHOD FOR PRODUCING A TUBE FILTER BY WRAPPING AND TUBE FILTER
METHOD FOR PRODUCING A TUBE FILTER BY WRAPPING AND TUBE FILTER
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机译:包装和管式过滤器生产管式过滤器的方法
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摘要
To produce a tubular filter (5), a continuous ribbon (11) of a porous and gas-permeable filter material is wound around a mandrel (10) in overlapping coils (12). The overlapping edges are durably bonded together by shaping the overlapping zones (15) to give profiled cross sections (17a,17b), using ultrasonic welding (20), so that they have a flush lock between them. The filter material is in two layers, with a micro-porous thermoplastic filter layer and a membrane layer.
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