CN106278223A - 永磁铁氧体干压多级磁环制作工艺 - Google Patents

永磁铁氧体干压多级磁环制作工艺 Download PDF

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CN106278223A
CN106278223A CN201610635182.9A CN201610635182A CN106278223A CN 106278223 A CN106278223 A CN 106278223A CN 201610635182 A CN201610635182 A CN 201610635182A CN 106278223 A CN106278223 A CN 106278223A
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magnet ring
multistage
magnet
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余涛
余兴如
余超
刘祥
宋加培
陈号
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ANHUI HONGTAI ELECTROMAGNETIC Co Ltd
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Abstract

一种永磁铁氧体干压多级磁环制作工艺，包括原料选取，研磨，烘干，预磁化，压制成型，烧结，研磨步骤，在研磨中加热水和润滑剂，预磁化后的粉料和粘合剂，樟脑混合成型，本发明研磨后的原料颗粒度大小均匀，成型时不易开裂，表面致密，提高了磁环成品率，润滑剂中相关成分掺杂在磁环中，使得磁环具有较好的机械性能和化学稳定性，制得的多级磁环强度高，不易磨损；与瓦形磁块相比，瓦形磁块表面磁场只有400‑800Gs，而该干压多级磁环表面磁场1800‑2200Gs，磁瓦属于单点驱动，多极磁环属于全面驱动，提高了材料使用率；另外原先带线圈的转子运转过程中温度升高明显导致电机性能下降，该干压磁环运转平稳且温度稳定，更好的保护了大部分元器件。

Description

永磁铁氧体干压多级磁环制作工艺
技术领域
本发明涉及磁性材料技术领域，具体涉及一种永磁铁氧体干压多级磁环制作工艺。
背景技术
现市场采用为直流有刷电机，电机为两块磁瓦镶嵌机壳内壁，线圈转子在中心，通电后以磁瓦驱动线圈转子做功，磁瓦利用率低导致电机使用率和性能低下，目前研发的干压多极磁环为取代磁瓦产品，中心为磁环注塑转子，线圈换到机壳内壁，不需要碳刷换向，通电后以线圈驱动磁环转子做功，另改进磁场方向，从而减小电机噪音和启动损伤。
永磁体的市场情况很好，但难于精密加工成特殊形状，而且在加工过程中易出现开裂、破损、掉边、掉角等问题，另外还不易装配，从而使其应用受到限制。
发明内容
本发明为解决上述问题，提供一种机械性能好，化学性能稳定，成品率高的永磁铁氧体干压多级磁环制作工艺。
本发明所要解决的技术问题采用以下的技术方案来实现：
一种永磁铁氧体干压多级磁环制作工艺，包括以下步骤：
1)、原料选取：选用Y35BH以上预烧料，所述Y35BH预烧料各项性能指标如下：
2)、研磨：将上述原料采用球磨机进行研磨，所述球磨机选用1.5吨出料机，用φ9毫米轴承钢球7.2吨加φ5毫米轴承钢球1.8吨研磨6～8小时使其平均粒度达到0.01mm左右；在研磨时加水和润滑剂来调整研磨效果，出料后沉淀脱水；
3)、烘干：采用圆筒式烘干机进行烘干，烘干温度80～100℃，烘干时间3～4H，含水量控制在5％～8％，得初级粉料；
4)、预磁化：将步骤3所得初级粉料在磁场强度为80～120mT的体系中磁化2～3H后形成预磁化粉料；
5)、压制成型：将预磁化粉料破碎成颗粒状并加入粘合剂和樟脑进行机械强度的加强，破碎均匀后过50～100目筛网进行过滤，用上压机进行压制成型得多级磁环生坯；
6)、烧结：将磁环生坯进行烧结，烧结温度控制在1120℃；
7)、研磨：采用无芯磨床，做内外圆磨削，将产品按图纸要求尺寸控制即可，待尺寸合格后分检包装出库。
所述步骤2)中的润滑剂由以下重量份的原料组成：
氧化铝粉末1-3g，炭黑2-4g，地蜡7-10g，铁硅铝粉芯2-3g，钕铁硼3-6g，铁粉芯4-9g，高铝陶瓷粉2-5g，硅藻土2-4g，蛭石3-7g，膨润土5-7g，硅酸铝纤维4-5g，滑石粉2-3g。
所述步骤2)中水、润滑剂、原料质量比为(5～6):(2～3):30。
所述步骤5)中的粘合剂由以下重量份的原料组成：
甲基纤维素15-18份，聚乙烯醇10-16份，羧甲基纤维素8-15份，松香13-15份，皮胶9-12份，珠光粉10-13份，果冻蜡6-10份，云母粉4-6份，水晶土7-9份，钛白粉5-8份，立德粉3-5份，聚芳酯2-3份。
所述步骤5)中粘合剂、樟脑、预磁化粉料质量比为(6～8):(2～5):20。
所述步骤5)中的多级磁环生坯为多级径向磁环生坯或者为多级径向角度磁环生坯。多级径向角度磁环与多级径向磁环相比，具有更高的磁场强度。
所述多级径向磁环生坯可以为四极、六极、八极、十二极、十六极、十八极或二十四极径向磁环生坯。
所述多级径向角度磁环生坯可以为四极、六极、八极、十二极、十六极、十八极或二十四极径向角度磁环生坯。
本发明的有益效果为：研磨过程中加入水和润滑剂，磨出后的原料颗粒度大小均匀，成型时不易开裂，表面致密，提高了磁环成品率，润滑剂中相关成分掺杂在磁环中，使得磁环具有较好的机械性能和化学稳定性，制得的多级磁环强度高，不易磨损；与瓦形磁块相比，瓦形磁块表面磁场只有400-800Gs，而该干压多级磁环表面磁场1800-2200Gs，磁瓦属于单点驱动，多极磁环属于全面驱动，提高了材料使用率；另外原先带线圈的转子运转过程中温度升高明显导致电机性能下降，该干压磁环运转平稳且温度稳定，更好的保护了大部分元器件。
附图说明
图1为本发明制得的四级径向磁环；
图2为本发明制得的四级径向角度磁环。
具体实施方式：
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合实施例，进一步阐述本发明。
实施例1
一种永磁铁氧体干压多极磁环制作工艺，包括以下步骤：
1)、原料选取：选用Y35BH以上预烧料，所述Y35BH预烧料各项性能指标如下：
2)、研磨：将上述原料采用球磨机进行研磨，所述球磨机选用1.5吨出料机，用φ9毫米轴承钢球7.2吨加φ5毫米轴承钢球1.8吨研磨6小时使其平均粒度达到0.01mm左右；在研磨时加水和润滑剂来调整研磨效果，出料后沉淀脱水；
3)、烘干：采用圆筒式烘干机进行烘干，烘干温度80℃，烘干时间3H，含水量控制在5％，得初级粉料；
4)、预磁化：将步骤3所得初级粉料在磁场强度为80mT的体系中磁化2H后形成预磁化粉料；
5)、压制成型：将预磁化粉料破碎成颗粒状并加入粘合剂和樟脑进行机械强度的加强，破碎均匀后过50目筛网进行过滤，用上压机进行压制成型得磁环生坯；
6)、烧结：将磁环生坯进行烧结，烧结温度控制在1120℃；
7)、研磨：采用无芯磨床，做内外圆磨削，将产品按图纸要求尺寸控制即可，待尺寸合格后分检包装出库。
所述步骤2)中的润滑剂由以下重量份的原料组成：
氧化铝粉末1g，炭黑2g，地蜡7g，铁硅铝粉芯2g，钕铁硼3g，铁粉芯4g，高铝陶瓷粉2g，硅藻土2g，蛭石3g，膨润土5g，硅酸铝纤维4g，滑石粉2g。
所述步骤2)中水、润滑剂、原料质量比为5:2:30。
所述步骤5)中的粘合剂由以下重量份的原料组成：
甲基纤维素15份，聚乙烯醇10份，羧甲基纤维素8份，松香13份，皮胶9份，珠光粉10份，果冻蜡6份，云母粉4份，水晶土7份，钛白粉5份，立德粉3份，聚芳酯2份。
所述步骤5)中粘合剂、樟脑、预磁化粉料质量比为6:2:20。
所述步骤5)中的多级磁环生坯为多级径向磁环生坯或者为多级径向角度磁环生坯。
实施例2
一种永磁铁氧体干压多极磁环制作工艺，包括以下步骤：
1)、原料选取：选用Y35BH以上预烧料，所述Y35BH预烧料各项性能指标如下：
2)、研磨：将上述原料采用球磨机进行研磨，所述球磨机选用1.5吨出料机，用φ9毫米轴承钢球7.2吨加φ5毫米轴承钢球1.8吨研磨7小时使其平均粒度达到0.01mm左右；在研磨时加水和润滑剂来调整研磨效果，出料后沉淀脱水；
3)、烘干：采用圆筒式烘干机进行烘干，烘干温度90℃，烘干时间4H，含水量控制在7％，得初级粉料；
4)、预磁化：将步骤3所得初级粉料在磁场强度为100mT的体系中磁化3H后形成预磁化粉料；
5)、压制成型：将预磁化粉料破碎成颗粒状并加入粘合剂和樟脑进行机械强度的加强，破碎均匀后过80目筛网进行过滤，用上压机进行压制成型得磁环生坯；
6)、烧结：将磁环生坯进行烧结，烧结温度控制在1120℃；
7)、研磨：采用无芯磨床，做内外圆磨削，将产品按图纸要求尺寸控制即可，待尺寸合格后分检包装出库。
所述步骤2)中的润滑剂由以下重量份的原料组成：
氧化铝粉末2g，炭黑3g，地蜡8g，铁硅铝粉芯3g，钕铁硼5g，铁粉芯7g，高铝陶瓷粉4g，硅藻土3g，蛭石5g，膨润土6g，硅酸铝纤维4g，滑石粉2g。
所述步骤2)中水、润滑剂、原料质量比为5:3:30。
所述步骤5)中的粘合剂由以下重量份的原料组成：
甲基纤维素17份，聚乙烯醇13份，羧甲基纤维素12份，松香14份，皮胶11份，珠光粉12份，果冻蜡8份，云母粉5份，水晶土8份，钛白粉7份，立德粉4份，聚芳酯3份。
所述步骤5)中粘合剂、樟脑、预磁化粉料质量比为7:4:20。
所述步骤5)中的多级磁环生坯为多级径向磁环生坯或者为多级径向角度磁环生坯。
实施例3
一种永磁铁氧体干压多极磁环制作工艺，包括以下步骤：
1)、原料选取：选用Y35BH以上预烧料，所述Y35BH预烧料各项性能指标如下：
2)、研磨：将上述原料采用球磨机进行研磨，所述球磨机选用1.5吨出料机，用φ9毫米轴承钢球7.2吨加φ5毫米轴承钢球1.8吨研磨8小时使其平均粒度达到0.01mm左右；在研磨时加水和润滑剂来调整研磨效果，出料后沉淀脱水；
3)、烘干：采用圆筒式烘干机进行烘干，烘干温度100℃，烘干时间4H，含水量控制在8％，得初级粉料；
4)、预磁化：将步骤3所得初级粉料在磁场强度为120mT的体系中磁化3H后形成预磁化粉料；
5)、压制成型：将预磁化粉料破碎成颗粒状并加入粘合剂和樟脑进行机械强度的加强，破碎均匀后过100目筛网进行过滤，用上压机进行压制成型得磁环生坯；
6)、烧结：将磁环生坯进行烧结，烧结温度控制在1120℃；
7)、研磨：采用无芯磨床，做内外圆磨削，将产品按图纸要求尺寸控制即可，待尺寸合格后分检包装出库。
所述步骤2)中的润滑剂由以下重量份的原料组成：
氧化铝粉末3g，炭黑4g，地蜡10g，铁硅铝粉芯3g，钕铁硼6g，铁粉芯9g，高铝陶瓷粉5g，硅藻土4g，蛭石7g，膨润土7g，硅酸铝纤维5g，滑石粉3g。
所述步骤2)中水、润滑剂、原料质量比为6:3:30。
所述步骤5)中的粘合剂由以下重量份的原料组成：
甲基纤维素18份，聚乙烯醇16份，羧甲基纤维素15份，松香15份，皮胶12份，珠光粉13份，果冻蜡10份，云母粉6份，水晶土9份，钛白粉8份，立德粉5份，聚芳酯3份。
所述步骤5)中粘合剂、樟脑、预磁化粉料质量比为8:5:20。
所述步骤5)中的多级磁环生坯为多级径向磁环生坯或者为多级径向角度磁环生坯。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。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仅为本发明的优选例，并不用来限制本发明，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等效物界定。

Claims (8)

1.一种永磁铁氧体干压多级磁环制作工艺，其特征在于，包括以下步骤：
1)、原料选取：选用Y35BH以上预烧料，所述Y35BH预烧料各项性能指标如下：
2)、研磨：将上述原料采用球磨机进行研磨，所述球磨机选用1.5吨出料机，用φ9毫米轴承钢球7.2吨加φ5毫米轴承钢球1.8吨研磨6～8小时使其平均粒度达到0.01mm左右；在研磨时加水和润滑剂来调整研磨效果，出料后沉淀脱水；
3)、烘干：采用圆筒式烘干机进行烘干，烘干温度80～100℃，烘干时间3～4H，含水量控制在5％～8％，得初级粉料；
4)、预磁化：将步骤3所得初级粉料在磁场强度为80～120mT的体系中磁化2～3H后形成预磁化粉料；
5)、压制成型：将预磁化粉料破碎成颗粒状并加入粘合剂和樟脑进行机械强度的加强，破碎均匀后过50～100目筛网进行过滤，用上压机进行压制成型得磁环生坯；
6)、烧结：将磁环生坯进行烧结，烧结温度控制在1120℃；
7)、研磨：采用无芯磨床，做内外圆磨削，将产品按图纸要求尺寸控制即可，待尺寸合格后分检包装出库。
2.如权利要求1所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述步骤2)中的润滑剂由以下重量份的原料组成：
氧化铝粉末1-3g，炭黑2-4g，地蜡7-10g，铁硅铝粉芯2-3g，钕铁硼3-6g，铁粉芯4-9g，高铝陶瓷粉2-5g，硅藻土2-4g，蛭石3-7g，膨润土5-7g，硅酸铝纤维4-5g，滑石粉2-3g。
3.如权利要求1所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述步骤2)中水、润滑剂、原料质量比为(5～6):(2～3):30。
4.如权利要求1所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述步骤5)中的粘合剂由以下重量份的原料组成：
甲基纤维素15-18份，聚乙烯醇10-16份，羧甲基纤维素8-15份，松香13-15份，皮胶9-12份，珠光粉10-13份，果冻蜡6-10份，云母粉4-6份，水晶土7-9份，钛白粉5-8份，立德粉3-5份，聚芳酯2-3份。
5.如权利要求1所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述步骤5)中粘合剂、樟脑、预磁化粉料质量比为(6～8):(2～5):20。
6.如权利要求1所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述步骤5)中的多级磁环生坯为多级径向磁环生坯或者为多级径向角度磁环生坯。
7.如权利要求6所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述多级径向磁环生坯为四极、六极、八极、十二极、十六极、十八极或二十四极径向磁环生坯。
8.如权利要求6所述的永磁铁氧体干压多级磁环制作工艺，其特征在于，所述多级径向角度磁环生坯为四极、六极、八极、十二极、十六极、十八极或二十四极径向角度磁环生坯。
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Application publication date: 20170104