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公开(公告)号：US11515066B2
公开(公告)日：2022-11-29
申请号：US16350363
申请日：2018-11-07
Inventor： Aaron G. Kassen , Iver E. Anderson , Emma Marie Hamilton White , Matthew J. Kramer , David J. Byrd , Liangfa Hu
Abstract: Improved manufacturing processes and resulting anisotropic permanent magnets, such as for example alnico permanent magnets, having highly controlled and aligned microstructure in the solid state are provided. A certain process embodiment involves applying a particular orientation and strength of magnetic field to loose, binder-coated magnet alloy powder particles in a compact-forming device as they are being formed into a compact in order to preferentially align the magnet alloy powder particles in the compact. The preferential alignment of the magnet alloy powder particle is locked in place in the compact by the binder after compact forming is complete. After removal from the device, the compact can be subjected to a subsequent sintering or other heat treating operation.
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2.发明公开公开(公告)号：US20230146566A1
公开(公告)日：2023-05-11
申请号：US17803661
申请日：2022-09-26
Inventor： Aaron G. Kassen , Iver E. Anderson , Emma Marie Hamilton White , Matthew J. Kramer , David J. Byrd , Liangfa Hu
CPC classification number: H01F1/086 , H01F41/0273 , H01F7/021
Abstract: Improved manufacturing processes and resulting anisotropic permanent magnets, such as for example alnico permanent magnets, having highly controlled and aligned microstructure in the solid state are provided. A certain process embodiment involves applying a particular orientation and strength of magnetic field to loose, binder-coated magnet alloy powder particles in a compact-forming device as they are being formed into a compact in order to preferentially align the magnet alloy powder particles in the compact. The preferential alignment of the magnet alloy powder particle is locked in place in the compact by the binder after compact forming is complete. After removal from the device, the compact can be subjected to a subsequent sintering or other heat treating operation.
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3.发明申请公开(公告)号：US20190244734A1
公开(公告)日：2019-08-08
申请号：US16350363
申请日：2018-11-07
Inventor： Aaron G. Kassen , Iver E. Anderson , Emma Marie Hamilton White , Matthew J. Kramer , David J. Byrd , Liangfa Hu
CPC classification number: H01F1/086 , H01F7/021 , H01F41/0273
Abstract: Improved manufacturing processes and resulting anisotropic permanent magnets, such as for example alnico permanent magnets, having highly controlled and aligned microstructure in the solid state are provided. A certain process embodiment involves applying a particular orientation and strength of magnetic field to loose, binder-coated magnet alloy powder particles in a compact-forming device as they are being formed into a compact in order to preferentially align the magnet alloy powder particles in the compact. The preferential alignment of the magnet alloy powder particle is locked in place in the compact by the binder after compact forming is complete. After removal from the device, the compact can be subjected to a subsequent sintering or other heat treating operation.
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