Method for manufacturing micro membrane pleats type filter cartridge
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United States of America Patent
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Jul 27, 1993
Grant Date -
N/A
app pub date -
Dec 17, 1991
filing date -
Nov 6, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
The object of the present invention is to provide a filter cartridge of micro filtration membrane pleats type, by which it is possible to stably manufacture products of high quality and to reduce the manufacturing cost. In the method for manufacturing a filter cartridge of micro membrane pleats according to the present invention, an initial portion and a last portion with pleats of a micro filtration membrane are welded together to prepare an endless micro membrane, and a filter element provided with a micro filtration membrane is welded on two end plates. A thin bonding auxiliary plate made of the same material as the end plates, having an opening at its center and molten at relatively low temperature, is welded to filter element and end plates which are heated in advance.
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