公开(公告)号：KR1019970704067A

公开(公告)日：1997-08-09

申请号：KR1019960707406

申请日：1995-06-23

Applicant: 플로우서브 매니지먼트 컴퍼니

Inventor： 맥콜,콜린 ,  푸마갈리,빈센죠

IPC: C22C38/38 ,  C22C38/58 ,  F04D29/22

公开(公告)号：KR100375108B1

公开(公告)日：2003-05-16

申请号：KR1019960707406

申请日：1995-06-23

Applicant: 플로우서브 매니지먼트 컴퍼니

Inventor： 맥콜,콜린 ,  푸마갈리,빈센죠

IPC: C22C38/38 ,  C22C38/58 ,  F04D29/22

CPC classification number: F04D29/2277 ,  C22C38/38 ,  F05C2201/90

Abstract: A fluid impeller for us in applications requiring superior cavitation erosion resistance. The impeller has a body fabricated from a castable metastable austenitic steel alloy which has a preferred chemical composition in the range of 17.5-18.5% chromium, 0.5-0.75% nickel, 0.45-55% silicon, 0.2-0.25% nitrogen, 15.5-16.0% manganese and 0.1%-0.12% carbon. Quantitative testing has shown cavitation resistance of four to six times that of standard boiler feed pump materials. A method for making cavitation resistant fluid impellers is also disclosed.

Abstract translation: 我们的流体叶轮适用于要求优异的耐气蚀腐蚀的应用。 叶轮具有由可铸造的亚稳态奥氏体钢合金制成的主体，其具有17.5-18.5％的铬，0.5-0.75％的镍，0.45-55％的硅，0.2-0.25％的氮，15.5-16.0 ％的锰和0.1％〜0.12％的碳。 定量测试表明，气穴阻力是标准锅炉给水泵材料的四至六倍。 还公开了一种制造抗气蚀流体叶轮的方法。