发明名称 |
Manufacturing technique for multi-layered structure with magnet using an extrusion process |
摘要 |
A method is provided for manufacturing a multi-layered magnetic rod in which a steel powder is reduced and extruded through a die. To improve the magnetic properties, a layer of rare earth magnetic power formed around the low alloy steel in the extruder chamber. A second layer of coating formed around the rare earth powder and the three layers are co-extruded through the die to produce a layered rod having improved magnetic properties. The resulting magnetic rod may be machined using conventional machining methods.
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申请公布号 |
US2002187362(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
US20020202176 |
申请日期 |
2002.07.24 |
申请人 |
CHATTERJEE MADHU SUDAN;PAWLAK ANDRZEJ MARIAN;SIKKA VINOD K. |
发明人 |
CHATTERJEE MADHU SUDAN;PAWLAK ANDRZEJ MARIAN;SIKKA VINOD K. |
分类号 |
H01F1/057;H01F41/02;(IPC1-7):B32B15/02;B32B15/16 |
主分类号 |
H01F1/057 |
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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