发明名称 |
HARDENED FE-NI ALLOY FOR MAKING INTEGRATED CIRCUIT GRIDS AND METHOD FOR MAKING SAME |
摘要 |
The invention concerns a method for making a Fe-Ni strip whereof the chemical composition comprises, by weight: 36 % </= Ni + Co </= 43 %; 0 % </= Co </= 3 %; 0.05 % </= C </= 0.4 %; 0.2 % </= Cr </= 1.5 %; 0.4 % </= Mo </= 3 %; Cu </= 3 %; Si </= 0.3 %; Mn </= 0.3 %; the rest being iron and impurities, the alloy having an elastic limit Rp0.2 more than 750 Mpa and a distributed elongation Ar more than 5 %. The alloy is optionally recast under slag. The strip is obtained by hot-rolling above 950 DEG C, then cold-rolling and carrying out a hardening treatment between 450 DEG C and 850 DEG C, the hardening heat treatment being preceded by a reduction of at least 40 %. The invention is useful for making integrated circuit support grids and electron gun grids. |
申请公布号 |
WO0192587(A1) |
申请公布日期 |
2001.12.06 |
申请号 |
WO2001FR01593 |
申请日期 |
2001.05.23 |
申请人 |
IMPHY UGINE PRECISION;COZAR, RICARDO;REYDET, PIERRE-LOUIS |
发明人 |
COZAR, RICARDO;REYDET, PIERRE-LOUIS |
分类号 |
C22B9/04;C21C7/00;C21D6/00;C21D6/02;C21D8/02;C21D9/46;C22B9/18;C22B9/187;C22C38/00;C22C38/02;C22C38/44;C22C38/52;C22C38/58;H01L23/495 |
主分类号 |
C22B9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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