| 摘要 |
PCT No. PCT/AU88/00358 Sec. 371 Date May 31, 1989 Sec. 102(e) Date May 31, 1989 PCT Filed Sep. 15, 1988 PCT Pub. No. WO89/02534 PCT Pub. Date Mar. 23, 1989.A liner for a centrifugal pump of the type made from wear resistant metal is conventional made with a step (5) in the inner surface of the liner between the junction of the side liners (2 and 3) and the volute liner (1), because of the difficulty in machining the hydraulic surface of the liner. This step (5) causes localized accelerated wear. The liner of the present invention is made with a thickening (11) of the area adjacent the joint with the side liners (2 and b 3) which thickening protrudes inwardly beyond the inner surface of the side liners (2 and 3). Upon assembly the thickening (11) is reduced to align with the inner surface of the side liners (2 and 3), to reduce localized wear on the liner. |
