CN108962581A - 一种高压真空永磁开关用整体辐射环的制备方法 - Google Patents

一种高压真空永磁开关用整体辐射环的制备方法 Download PDF

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CN108962581A
CN108962581A CN201810707862.6A CN201810707862A CN108962581A CN 108962581 A CN108962581 A CN 108962581A CN 201810707862 A CN201810707862 A CN 201810707862A CN 108962581 A CN108962581 A CN 108962581A
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radiation ring
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刘兴民
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Jiangsu Boruitong Magnetic Industry Co Ltd
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    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0573—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes obtained by reduction or by hydrogen decrepitation or embrittlement
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    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
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    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
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Abstract

本发明公开了一种高压真空永磁开关用整体辐射环的制备方法，依次进行熔炼加工、氢破加工、气流磨加工、成型加工、等静压加工、烧结/时效加工、辐射环精加工、辐射环表面电镀以及充磁加工以此制造出高压真空永磁开关用整体辐射环，其生产周期短，成本较低，并且在烧结/时效加工和辐射环精加工之间会进行磁性能检测，以提高产品性能，并且进一步的在电镀和充磁加工之间再次进行成品检测，可以保证所生产的辐射环质量，大大降低不良品流入市场，本发明生产简单、大幅度降低了生产成本，适用于中小型企业。

Description

一种高压真空永磁开关用整体辐射环的制备方法
技术领域
本发明涉及钕铁硼技术领域，尤其涉及一种高压真空永磁开关用整体辐射环的制备方法。
背景技术
钕铁硼作为永磁材料的皇冠，稀土永磁材料是支撑现代社会发展的一种重要基础材料，与人们的生活息息相关。小到手机、照相机、电脑、空调、冰箱、电动自行车，大到医疗设备、汽车、火车、飞机等，稀土永磁材料无所不在。在低碳生活中充满了磁性，稀土永磁材料扮演着重要的角色。比如风力发电、混合动力/纯电动汽车、节能家电等方面都离不开稀土永磁，随着新能源汽车、风力发电、消费电子，甚至在高铁上的应用，整个烧结钕铁硼的发展呈现逐渐增长的态势，在辐射环制备方法上，以烧结为主的钕铁硼用量最大，但是现有的辐射环制备方法较为复杂，周期较长，制作成本较大，因此，解决这一类的问题显得尤为重要。
发明内容
本发明提供了一种高压真空永磁开关用整体辐射环的制备方法。
本发明的技术方案是：
一种高压真空永磁开关用整体辐射环的制备方法,其特征在于，包括以下制备步骤：
步骤一：熔炼，将钕铁硼磁体原料熔炼成合金液，并浇筑成合金片；
步骤二：氢化破碎，将合金片破碎和中磨成粉料；
步骤三：气流磨，使用压缩空气经拉瓦尔喷咀加速成超音速气流后射入粉碎区使粉料呈流态化；
步骤四：成型，将粉料压制成型，退磁后真空封装；
步骤五：等静压，把封装后的成型工件放置于盛满液体的密闭容器中，通过增压系统进行逐步加压对成型工件的各个表面施加以相等的压力，使其在不改变外观形状的情况下缩小分子间的距离增大密度。
步骤六：烧结、时效，将成型工件在1070℃下烧结3h，第一时效温度为920℃，时间为3h，第二时效温度为510℃，时间为4h；
步骤七：对工件进行磁性能检测；
步骤八：加工电镀，对成型的工件进行套孔并压制成辐射环，并在辐射环的表面电镀一层钕铁硼结合层；
步骤八：对成品的辐射环进行检测，合格之后进行充磁；
步骤九：最后进行包装运输。
进一步改进在于：步骤一中采用钕铁硼真空烧结炉进行熔炼。
进一步改进在于：步骤二中采用旋转式氢碎炉进行氢破处理加工。
进一步改进在于：在步骤三中采用流态化对喷式气流磨对粉料进行加工；
进一步改进在于：在步骤四中采用自动磁场成型一体化小型单柱液压机对粉料进行压制成型。
进一步改进在于：在步骤五中采用框架式冷等静压机对工件进行处理。
进一步改进在于：在步骤六中采用烧结炉和真空时效炉对工件进行加工。
本发明的有益效果是：本发明依次进行熔炼加工、氢破加工、气流磨加工、成型加工、等静压加工、烧结/时效加工、辐射环精加工、辐射环表面电镀以及充磁加工以此制造出高压真空永磁开关用整体辐射环，其生产周期短，成本较低，并且在烧结/时效加工和辐射环精加工之间会进行磁性能检测，以提高产品性能，并且进一步的在电镀和充磁加工之间再次进行成品检测，可以保证所生产的辐射环质量，大大降低不良品流入市场，本发明生产简单、大幅度降低了生产成本，适用于中小型企业。
具体实施方式
为了加深对本发明的理解，下面将结合实施例对本发明做进一步详述，本实施例仅用于解释本发明，并不构成对本发明保护范围的限定。
本实施例提供了一种高压真空永磁开关用整体辐射环的制备方法,其特征在于，包括以下制备步骤：
步骤一：熔炼，将钕铁硼磁体原料熔炼成合金液，并浇筑成合金片；
步骤二：氢化破碎，将合金片破碎和中磨成粉料；
步骤三：气流磨，使用压缩空气经拉瓦尔喷咀加速成超音速气流后射入粉碎区使粉料呈流态化；
步骤四：成型，将粉料压制成型，退磁后真空封装；
步骤五：等静压，把封装后的成型工件放置于盛满液体的密闭容器中，通过增压系统进行逐步加压对成型工件的各个表面施加以相等的压力，使其在不改变外观形状的情况下缩小分子间的距离增大密度；
步骤六：烧结、时效，将成型工件在1070℃下烧结3h，第一时效温度为920℃，时间为3h，第二时效温度为510℃，时间为4h；
步骤七：对工件进行磁性能检测；
步骤八：加工电镀，对成型的工件进行套孔并压制成辐射环，并在辐射环的表面电镀一层钕铁硼结合层；
步骤八：对成品的辐射环进行检测，合格之后进行充磁；
步骤九：最后进行包装运输。
步骤一中采用钕铁硼真空烧结炉进行熔炼。步骤二中采用旋转式氢碎炉进行氢破处理加工。在步骤三中采用流态化对喷式气流磨对粉料进行加工；在步骤四中采用自动磁场成型一体化小型单柱液压机对粉料进行压制成型。在步骤五中采用框架式冷等静压机对工件进行处理。在步骤六中采用烧结炉和真空时效炉对工件进行加工。
本发明依次进行熔炼加工、氢破加工、气流磨加工、成型加工、等静压加工、烧结/时效加工、辐射环精加工、辐射环表面电镀以及充磁加工以此制造出高压真空永磁开关用整体辐射环，其生产周期短，成本较低，并且在烧结/时效加工和辐射环精加工之间会进行磁性能检测，以提高产品性能，并且进一步的在电镀和充磁加工之间再次进行成品检测，可以保证所生产的辐射环质量，大大降低不良品流入市场，本发明生产简单、大幅度降低了生产成本，适用于中小型企业。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其效物界定。

Claims (7)

1.一种高压真空永磁开关用整体辐射环的制备方法,其特征在于，包括以下制备步骤：
步骤一：熔炼，将钕铁硼磁体原料熔炼成合金液，并浇筑成合金片；
步骤二：氢化破碎，将合金片破碎和中磨成粉料；
步骤三：气流磨，使用压缩空气经拉瓦尔喷咀加速成超音速气流后射入粉碎区使粉料呈流态化；
步骤四：成型，将粉料压制成型，退磁后真空封装；
步骤五：等静压，把封装后的成型工件放置于盛满液体的密闭容器中，通过增压系统进行逐步加压对成型工件的各个表面施加以相等的压力，使其在不改变外观形状的情况下缩小分子间的距离增大密度；
步骤六：烧结、时效，将成型工件在1070℃下烧结3h，第一时效温度为920℃，时间为3h，第二时效温度为510℃，时间为4h；
步骤七：对工件进行磁性能检测；
步骤八：加工电镀，对成型的工件进行套孔并压制成辐射环，并在辐射环的表面电镀一层钕铁硼结合层；
步骤八：对成品的辐射环进行检测，合格之后进行充磁；
步骤九：最后进行包装运输。
2.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：步骤一中采用钕铁硼真空烧结炉进行熔炼。
3.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：步骤二中采用旋转式氢碎炉进行氢破处理加工。
4.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：在步骤三中采用流态化对喷式气流磨对粉料进行加工。
5.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：在步骤四中采用自动磁场成型一体化小型单柱液压机对粉料进行压制成型。
6.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：在步骤五中采用框架式冷等静压机对工件进行处理。
7.如权利要求1所述的一种高压真空永磁开关用整体辐射环的制备方法，其特征在于：在步骤六中采用烧结炉和真空时效炉对工件进行加工。
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