Electrical resistance alloys
    1.
    发明授权
    Electrical resistance alloys 失效
    电阻合金

    公开(公告)号:US3749569A

    公开(公告)日:1973-07-31

    申请号:US3749569D

    申请日:1971-07-22

    CPC classification number: C22C19/007 H01B1/00 H01B1/02

    Abstract: OXIDATION RESISTANT ELECTRICAL RESISTANT ALLOYS ARE DISCLOSED THAT HAVE A NICKEL BASE AND CONTAIN FROM 0.5 TO 5% BY WEIGHT OF SILICON AND 0.01 AND 0.04% BY WEIGHT OF CALCIUM AND FROM ABOUT 50 P.P.M. TO 180 P.P.M. BY WEIGHT OF OXYGEN IN THE FORM OF SILICON DIOXIDE (SIO2) AND CALCIUM OXIDE (CAO) IN THE MOLAR RATIO SIO2 TO CAO OF LESS THAN ONE. A METHOD FOR MAKING THE ALLOY IS DISCLOSED. THESE ALLOYS ARE ELECTRICAL RESISTANCE ALLOYS WHICH HAVE UNIFORM LONG LIFE UNDER OXIDIZING CONDITIONS.

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