| 发明名称 |
PIERCING PLUG |
| 摘要 |
A piercing plug of the present invention includes: a plug body; a Ni—Cr layer formed on a surface of the plug body; and a sprayed coating formed on a surface of the Ni—Cr layer. The plug body contains, by mass %, 20 to 30% of Cr, 30 to 55% of Ni, 0.005 to 0.5% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, and at least one of Mo and W which satisfy a following conditional expression (A), and remainder including Fe and impurities.;1.5%≦Mo+0.5 W≦8.5% (A) |
| 申请公布号 |
US2015321233(A1) |
申请公布日期 |
2015.11.12 |
| 申请号 |
US201314409150 |
申请日期 |
2013.07.16 |
| 申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
NOSAKA Atsushi;HIDAKA Yasuyoshi;HIGASHIDA Yasuto;OGATA Ryuutarou |
| 分类号 |
B21B25/00;C23C4/12;B21B19/04;C23C28/02;C22C30/00;C23C4/08;C23C30/00 |
主分类号 |
B21B25/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A piercing plug comprising:
a plug body; a Ni—Cr layer formed on a surface of the plug body; and a sprayed coating formed on a surface of the Ni—Cr layer, wherein the plug body contains, by mass %, 20 to 30% of Cr, 30 to 55% of Ni, 0.005 to 0.5% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, and at least one of Mo and W which satisfy a following conditional expression (A), and remainder including Fe and impurities.
1.5%≦Mo+0.5 W≦8.5% (A) |
| 地址 |
Chiyoda-ku, Tokyo JP |
