| 摘要 |
PCT No. PCT/FI94/00111 Sec. 371 Date Feb. 6, 1996 Sec. 102(e) Date Feb. 6, 1996 PCT Filed Mar. 28, 1994 PCT Pub. No. WO94/26389 PCT Pub. Date Nov. 24, 1994A disc filter (and disc filter constructed from a number of sectors) includes a filter member and a supporting structure. The supporting structure is formed by two opposed perforated plates which each have at least about 70% flat supporting portions which separate recess portions (which typically extend radially). The recess portions of each plate are welded to either supporting portions or recess portions of the other plate.
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