A method for thermomagnetic encoding of permanent magnet materials
    1.
    发明公开
    A method for thermomagnetic encoding of permanent magnet materials 失效
    永磁材料的热阻编码方法

    公开(公告)号:EP0555563A3

    公开(公告)日:1994-05-18

    申请号:EP92203968.0

    申请日:1992-12-16

    IPC分类号: G06K1/12

    CPC分类号: G06K1/125

    摘要: A magnetized or unmagnetized body (10) of a permanent magnet material is heated in a pattern by a laser beam (18) to a temperature sufficient to lower the magnetic coercivity of selected heated regions of the pattern and then exposed to a magnetic field to magnetize or to re-magnetize the selected heated regions. A pattern guide (30) is used in the process to densify the pattern. In the process, energy (18) is directed through the pattern guide (30) and onto the selected regions, whilst the pattern guide (30) prevents or minimizes heating of unselected portions of the body (10). Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.

    摘要翻译: 永磁材料的磁化或非磁化体(10)通过激光束(18)以图案加热到足以降低所选图案的加热区域的磁矫顽力的温度,然后暴露于磁场以磁化 或重新磁化所选择的加热区域。 在该过程中使用图案引导件(30)来致密化图案。 在该过程中,能量(18)被引导通过图案引导件(30)并且到达所选择的区域,而图案引导件(30)防止或最小化身体(10)的未选择部分的加热。 如此制造的磁体可以具有非常高的极点密度,数字编码和具有逐渐变化的局部场强的模拟图案。

    Heating of metal alloy sheet by thermal conduction
    2.
    发明公开
    Heating of metal alloy sheet by thermal conduction 有权
    Heizung des Metalllegierung Blattes durch thermischeÜbertragung

    公开(公告)号:EP1566462A1

    公开(公告)日:2005-08-24

    申请号:EP04003803.6

    申请日:2004-02-19

    IPC分类号: C22F1/047 B21D26/02

    CPC分类号: C22F1/04 C22F1/047

    摘要: A method is disclosed for heating a cold worked sheet of superplastically formable metal composition to recrystallize its microstructure to a formable condition and/or to heat the sheet to a temperature for an immediate forming operation. The sheet is placed between two electrical resistance heated platens maintained at a suitable temperature for recrystallizing and/or heating the metal sheet through its side surfaces. In a preferred embodiment a critical gap is maintained between the platens and the sheet to permit rapid conductive heating of the expanding sheet without marring its surfaces.

    摘要翻译: 公开了一种用于加热超塑性可成形金属组合物的冷加工片材以将其微结构重结晶到可成形条件和/或将片材加热到立即成型操作的温度的方法。 将片放置在保持在合适温度的两个电阻加热板之间,以通过其侧表面再结晶和/或加热金属片。 在优选实施例中,压板和片材之间保持临界间隙,以允许膨胀片材的快速导电加热而不损坏其表面。

    Recrystallization of metal alloy sheet with convection & infrared radiation heating
    5.
    发明公开
    Recrystallization of metal alloy sheet with convection & infrared radiation heating 有权
    对流和红外辐射加热对金属合金薄板的再结晶

    公开(公告)号:EP1566461A1

    公开(公告)日:2005-08-24

    申请号:EP04003805.1

    申请日:2004-02-19

    摘要: A method is disclosed for heating a cold worked sheet of superplastically formable metal composition to recrystallize its microstructure to a suitably formable condition and further to heat the sheet to a temperature for an immediate forming operation. The method utilizes a combination of hot air convection heating and infrared radiation to rapidly accomplish the heating. High temperature infrared heating elements provide most of the energy during an initial high heating rate phase and then those elements are shut off and heating is completed with controlled temperature hot air to prevent overheating of the sheet metal.

    摘要翻译: 公开了一种加热超塑性成形金属组合物的冷加工片以使其微结构再结晶到合适的可成形条件并进一步将片加热到用于立即成形操作的温度的方法。 该方法利用热空气对流加热和红外辐射的组合来快速完成加热。 高温红外线加热元件在初始高加热速率阶段提供大部分能量,然后关闭这些元件,并用受控温度的热空气加热,以防止金属板过热。

    A method for thermomagnetic encoding of permanent magnet materials
    6.
    发明公开
    A method for thermomagnetic encoding of permanent magnet materials 失效
    Verfahren zur thermoplastischenVerschlüsselungvon永磁材料。

    公开(公告)号:EP0555563A2

    公开(公告)日:1993-08-18

    申请号:EP92203968.0

    申请日:1992-12-16

    IPC分类号: G06K1/12

    CPC分类号: G06K1/125

    摘要: A magnetized or unmagnetized body (10) of a permanent magnet material is heated in a pattern by a laser beam (18) to a temperature sufficient to lower the magnetic coercivity of selected heated regions of the pattern and then exposed to a magnetic field to magnetize or to re-magnetize the selected heated regions. A pattern guide (30) is used in the process to densify the pattern. In the process, energy (18) is directed through the pattern guide (30) and onto the selected regions, whilst the pattern guide (30) prevents or minimizes heating of unselected portions of the body (10). Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.

    摘要翻译: 永磁材料的磁化或非磁化体(10)通过激光束(18)以图案加热到足以降低所选图案的加热区域的磁矫顽力的温度,然后暴露于磁场以磁化 或重新磁化所选择的加热区域。 在该过程中使用图案引导件(30)来致密化图案。 在该过程中,能量(18)被引导通过图案引导件(30)并且到达所选择的区域,而图案引导件(30)防止或最小化身体(10)的未选择部分的加热。 如此制造的磁体可以具有非常高的极点密度,数字编码和具有逐渐变化的局部场强的模拟图案。