| 摘要 |
A battery separator envelope is provided having two walls of battery separator connected together by a foam member. In a method, two walls of battery separator are secured on a mandrel by sandwiching the mandrel and the walls of battery separator in a jig. A foam bead is then extruded between the walls and the bead is tamped and squeezed to complete the final formation of the foam member. The apparatus includes the mandrel, jig, extruder and support for guiding the jig assembly past the extruder.
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