| 发明名称 |
LOW-FREQUENCY MAGNETIC SCREENING MADE FROM A SOFT MAGNETIC ALLOY |
| 摘要 |
The invention relates to a magnetic screening for frequency fields between 50 Hz and 3000 Hz, made from a soft magnetic alloy of the following composition in wt. %: 30 % </= Ni </= 40 %, 0 % </= Cu + Co </= 4 %, 5 % </= Cr + Mo </= 17 %, 5 % </= Cr, 0 % </= Nb </= 2 %, Mn </= 0.35 %, Si </= 0.2 %, C </= 0.050 %, O </= 0.0160 %, S </= 0.0020 %, B </= 0.0010 %, optionally at least one element selected from magnesium and calcium in amounts such that the sum thereof remains below 0.1 %, the rest being iron and production impurities. The chemical composition furthermore satisfies the following relationships: Cr + Mo </= 0.8 x Ni + 0.9 x (Co + Cu) 18.4; Cr + Mo </= 4 x Ni + 3 x (Co + Cu) - 124; 4 x (Cr + Mo) >/= 125 - 3 x Ni. The invention further relates to use of said alloy for the production of low-frequency magnetic screening. |
| 申请公布号 |
WO03069637(A1) |
申请公布日期 |
2003.08.21 |
| 申请号 |
WO2003FR00491 |
申请日期 |
2003.02.14 |
| 申请人 |
IMPHY UGINE PRECISION;WAECKERLE, THIERRY;FRAISSE, HERVE;WITZKE, SYLVAIN;BOULOGNE, BRUNO |
发明人 |
WAECKERLE, THIERRY;FRAISSE, HERVE;WITZKE, SYLVAIN;BOULOGNE, BRUNO |
| 分类号 |
C22C38/40;C22C38/42;C22C38/44;C22C38/52;H01F1/147;H05K9/00 |
主分类号 |
C22C38/40 |
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