| 发明名称 | Iron-based soft magnetic powder for dust core use, manufacturing method thereof, and dust core | ||
| 摘要 | Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment. | ||
| 申请公布号 | US9472328(B2) | 申请公布日期 | 2016.10.18 |
| 申请号 | US201214124866 | 申请日期 | 2012.06.15 |
| 申请人 | Kobe Steel, Ltd. | 发明人 | Hosokawa Mamoru;Urushihara Wataru;Ohwaki Takeshi;Kamijo Tomotsuna;Hojo Hirofumi |
| 分类号 | B22F1/02;B22F3/02;C22C33/02;H01F1/20;H01F1/24;H01F1/26;H01F27/255;H01F41/02 | 主分类号 | B22F1/02 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. An iron-based soft magnetic powder, comprising: an iron-based soft magnetic matrix powder; and a phosphate conversion coating present on a surface of the iron-based soft magnetic matrix powder, wherein the phosphate conversion coating comprises nickel in a content of from 0.001 percent by mass to 0.05 percent by mass, based on a total amount of the iron-based soft magnetic powder, and the phosphate conversion coating comprises aluminum in a content of equal to or less than an aluminum content in the iron-based soft magnetic matrix powder. | ||
| 地址 | Kobe-shi JP | ||