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    IMPULSORES DE FLUIDO RESISTENTES A LA CAVITACION Y METODO PARA FABRICARLOS.
    3.
    发明专利
    IMPULSORES DE FLUIDO RESISTENTES A LA CAVITACION Y METODO PARA FABRICARLOS. 未知

    公开(公告)号：MX9606528A

    公开(公告)日：1997-12-31

    申请号：MX9606528

    申请日：1995-06-23

    Applicant: INGERSOLL DRESSER PUMP CO

    Inventor： MCCAUL COLIN ,  FUMAGALLI VINCENZO

    IPC: C22C38/38 ,  F04D29/22

    Abstract: Un impulsor de fluido para aplicaciones que requieren una superior resistencia a al cavitacion por erosion. El impulsor tiene un cuerpo fabricado a partir de una aleacion de acero austenítico metastable moldeable que tiene una composicion química dentro de los límites: (Ver Formula); el balance comprendiendo hierro e impurezas. Los límites preferidos son 17.5-18.5% de cromo, 0.5-0.75% de níquel, 0.45-9.55% de silicio, 0.2-0.25% de nitrogeno, 15.5-16.9% de manganeso y 0.1-0.12% de carbono. Las pruebas cuantitativas han mostrado una resistencia a la cavitacion de 4 a 6 veces la de los materiales normales de impulsores de fluido para calentadores. Un método para fabricar los impulsores de fluido resistentes a la cavitacion también se describe.

    CAVITATION RESISTANT FLUID IMPELLERS AND METHOD OF MAKING SAME
    5.
    发明专利
    CAVITATION RESISTANT FLUID IMPELLERS AND METHOD OF MAKING SAME 未知

    公开(公告)号：CA2193833A1

    公开(公告)日：1996-01-04

    申请号：CA2193833

    申请日：1995-06-23

    Applicant: INGERSOLL DRESSER PUMP CO

    Inventor： MCCAUL COLIN ,  FUMAGALLI VINCENZO

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

    Abstract: A fluid impeller for applications requiring superior cavitation erosion resistance. The impeller has a body fabricated from a castable metastable austenitic steel alloy which has a chemical composition in the range according to table (I), the balance comprising iron and impurities. The preferred range is 17.5-18.5 % chromium, 0.5-0.75 % nickel, 0.45-0.55 % 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.

    CAVITATION RESISTANT FLUID IMPELLERS AND METHOD OF MAKING SAME
    6.
    发明专利
    CAVITATION RESISTANT FLUID IMPELLERS AND METHOD OF MAKING SAME 未知

    公开(公告)号：CA2193833C

    公开(公告)日：2005-03-22

    申请号：CA2193833

    申请日：1995-06-23

    Applicant: INGERSOLL DRESSER PUMP CO

    Inventor： MCCAUL COLIN ,  FUMAGALLI VINCENZO

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

    Abstract: A fluid impeller for applications requiring superior cavitation erosion resistance. The impeller has a body fabricated from a castable metastable austenitic steel alloy which has a chemical composition in the range according to table (I), the balance comprising iron and impurities. The preferred range is 17.5-18.5% chromium, 0.5-0.75% nickel, 0.45-0.55% 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 resistan t fluid impellers is also disclosed.

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