| Original document(15 pages) Authorized document(15 pages) 中文版 |
A Fe-Ni-Co based alloy being improved in proof stress and Young's modulus as indexes for the resistance to fall impact deformation while maintaining low thermal expansion properties for use in a completely flat mask of a press-formed type, which comprises, in mass %, 30 to 35 % of Ni, 2 to 8 % of Co and 0.01 to 0.5 % of Mn, and further comprises one or more selected from among 0.01 to 0.8 % of Nb, 0.01 to 0.8 % of Ta and 0.01 to 0.8 % of Hf in an total amount of 0.01 to 0.8 %, the balance of the alloy being Fe and inevitable impurities; and a completely flat mask and a color cathode-ray tube using the Fe-Ni-Co based alloy. It is preferred that the contents of C, Si, P, S and N as impurities in the ally are controlled to 0.01 % or less, 0.04 % or less, 0.01 % or less, 0.01 % or less and 0.005 % or less, respectively. In additon, a completely flat mask and color picture tubes using the alloy are also disclosed. |
Application Number
申请号 |
01804688 |
Application Date
申请日 |
2001.02.08 |
| Title 名称 |
Fe-ni-co alloy for completely flat mask of press-formed type, and completely flat mask and color cathode-ray tube using same |
Publication Number
公开号 |
1398303 |
Publication Date
公开日 |
2003.02.19 |
| Approval Pub. Date |
2004.06.16 |
Granted Pub. Date |
2004.06.16 |
| International Classification 分类号 |
C22C38/12;H01J29/07 |
Applicant(s) Name
申请人 |
Nippon Mining & Metals Co Ltd |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Suganuma Teruo;Yuki Norio;Ono Toshiyuki |
| Attorney & Agent 代理人 |
fan zheng |
| More information 更 多 信 息 |
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