CN107680771A - 软磁生坯在数控雕刻机上的装夹方法 - Google Patents

软磁生坯在数控雕刻机上的装夹方法 Download PDF

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CN107680771A
CN107680771A CN201610812222.2A CN201610812222A CN107680771A CN 107680771 A CN107680771 A CN 107680771A CN 201610812222 A CN201610812222 A CN 201610812222A CN 107680771 A CN107680771 A CN 107680771A
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杨甫进
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Xuzhou Aofeng transportation equipment Co., Ltd
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    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
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Abstract

本发明涉及一种通过用数控雕刻机来进行软磁材料的生产加工方法,软磁材料生坯在数控雕刻机上的装夹是用胶水将软磁材料生坯粘在铁板上再用电磁铁进行吸合的方法来固定,在加热到一定的温度后软磁生坯易从铁板上取下来,不会对生坯形状有任何破坏性。

Description

软磁生坯在数控雕刻机上的装夹方法
技术领域
本发明涉及一种软磁的加工方法,具体为一种软磁磁芯的加工方法,尤其是一种软磁生坯在数控雕刻机上的装夹方法。
背景技术
软磁材料生坯传统的加工方法是模具的压合,而用这种加工方法制作周期长、成本高。现有技术中通常采用传统的方法加工软磁材料生坯,例如越峰电子(昆山)有限公司的专利CN 101930840A公开了一种软磁铁氧体磁芯成型方法,其中压制生坯是将原料填入中模成型凹槽内;山东凯通电子有限公司的实用新型专利CN 203737628U公开了一种软磁铁氧体磁芯生坯去毛边装置,其解决的问题就是由于模具老化导致生坯产生毛刺,需要进一步修毛边,说明也是通过传统的模压工艺制成;专利CN 201410792980.3“一种稀土元素掺杂的镍硅铝软磁材料的制备方法”中制坯步骤也是采用模压工艺制备软磁生坯。
通过用数控雕刻机来进行软磁材料的生产加工,可以降低制作周期和生产成本。然而传统的数控雕刻机装夹方法:一是用平口钳两头挤的装夹,二是用电磁铁吸合的装夹,例如专利CN102555416A公开一种钢质烫金凸模的制作方法,首先准备磁铁平面吸台,选择雕刻钢坯料,将雕刻钢坯料置于该磁铁平面吸台上。但由于软磁生坯磁块是用模具压合的铁氧体颗粒材料其特性软、易碎,而且生坯没有磁性,导致上述两种方法都难以使用,具体原因如下:平口钳装夹加紧易碎,即使不碎生坯的物理结构组织也会发生变化;如果加松,机床刀具高速旋转的状态下生坯容易脱落;由于软磁生坯没有磁性,所以电磁铁吸合不住。
发明内容
针对上述问题,本发明的目的是提供一种通过用数控雕刻机来进行软磁材料的生产加工方法。
具体步骤如下:
一、制备软磁材料生坯
(1)将原料混料:将三氧化二铁、四氧化三锰和氧化锌混合;所述软磁材料生坯主成分为三氧化二铁50~54%,氧化锰35~38%,氧化锌11~13%(成分百分比都以摩尔数为百分比单位);
(2)造粒:将三种原材料在纯水中混合均匀,加入粘合剂PVA,然后通过喷雾塔烘干后形成颗粒料;
(3)预烧:通过回转窑进行预烧,温度控制在900~950℃;
(4)砂磨:在此工序中,将配方所需要的添加剂加入砂磨机,即一次加杂,与原材料一起混合研磨;加入的添加剂及摩尔百分比含量为CaCO3 0.03~0.04%、Co2O3 0.3~0.4%、Nb2O5 0.04~0.05%、ZrO 0.03~0.04%;
(5)喷雾造粒:与步骤(2)相同,可通过调整喷孔和涡流片的尺寸,得到利于压制成型的粉末颗粒料;
(6)二次加杂:加入氯化锂水溶液,浓度为300~400PPM,在步骤(5)制备的粉末颗粒料进行调湿时通过调湿机喷洒在材料之中,
(7)烧结成型;
二、采用胶水粘合的方法将软磁材料生坯粘合在铁板上,再通过电磁铁吸合固定到机床上;
三、采用数控雕刻机加工软磁材料生坯。
采用数控雕刻机进行软磁材料生产时,需要将材料夹装在雕刻机上,本发明采用胶水粘合的方法将软磁材料粘合在铁板上,再通过电磁铁吸合固定到机床上。然而传统的胶水易粘不易取下,如市面的万能胶、强力胶等,这些胶水大多具有毒性,本身会对软磁材料有一定的腐蚀,会对产品的性能造成很大的影响。因此,本发明的另一目的是提供一种容易将软磁材料生坯粘在铁板上粘住且容易取下,而且对软磁生坯没有任何腐蚀对产品性能没有任何破坏的胶水。
本发明采用的具体技术方案如下:
用天然植物胶水加上A配方制成的植物胶,将软磁材料生坯粘接到铁板上然后用电磁铁吸合的方法来固定到机床上。
所述天然植物胶水以常规粮食为原料加以微量的酸碱进行中和调和而成,如红薯做糖稀50%,玉米淀粉做成的黄糊精50%,加以微量的酸碱进行中和调和而成,调节pH值为7。后经抽样检验合格后方可使用,外观呈微黄液体。这种天然植物胶水没有任何毒性,粘性强,不会对产品形成掉块,裂纹,而且成本相当便宜。
所述A配方为乙醇65%、高级脂肪醇21%、丙烯酸酯14%。
植物胶中天然植物胶水与A配方的质量比为2:1。
本发明采取以上技术方案具有以下优点:
1、纯天然植物胶水没有任何的毒性,不带任何化学成分,不会对软磁材料生坯的性能有任何影响。
2、常温下易粘合,在普通的室温下就能粘到铁板上,而且粘性特别强。在加热到70-80℃下可以将植物胶融化(植物天然胶水易融化)软磁生坯易从铁板上取下来,而且不会对生坯形状有任何破坏性。
具体实施方式
下面结合实施例详细描述本发明,但实施例不应限制本发明的范围。
实施例1:
一、软磁材料生坯通过如下步骤制成:
(1)将原料混料:将摩尔数为百分比单位的三氧化二铁51.0±0.3%,氧化锰37.5±0.2%,氧化锌11.5±0.2%混合;
(2)造粒:将三种原材料在纯水中混合均匀,加入聚乙烯醇,然后通过喷雾塔烘干后形成颗粒料;
(3)预烧:通过回转窑进行预烧,温度控制在850~950℃;
(4)砂磨:在此工序中,将配方所需要的添加剂加入砂磨机,即一次加杂,与原材料一起混合研磨;加入的添加剂及摩尔百分比含量为CaCO3 0.035%、Co2O3 0.3%、Nb2O50.04%、ZrO 0.04%;
(5)喷雾造粒:与步骤(2)相同,可通过调整喷孔和涡流片的尺寸,得到利于压制成型的粉末颗粒料;
(6)二次加杂:加入氯化锂水溶液,浓度为400PPM,在步骤(5)制备的粉末颗粒料进行调湿时通过调湿机喷洒在材料之中;
(7)烧结成型。
二、采用胶水粘合的方法将软磁材料生坯粘合在铁板上,再通过电磁铁吸合固定到机床上;
三、采用数控雕刻机加工软磁材料生坯。软磁材料生坯在数控雕刻机上的装夹是用天然植物胶水加上A配方制成的植物胶,将软磁材料生坯粘接到铁板上然后用电磁铁吸合的方法来固定到机床上。
所述天然植物胶水以红薯做糖稀50%,玉米淀粉做成的黄糊精50%,加以微量的酸碱进行中和调和而成。后经抽样检验合格后方可使用,外观呈微黄液体。这种天然植物胶水没有任何毒性,粘性强,不会对产品形成掉块,裂纹,而且成本相当便宜。
所述A配方为乙醇65%、高级脂肪醇21%、丙烯酸酯14%。
植物胶中天然植物胶水与A配方的质量比为2:1。
软磁生坯加工成型后,加热到70-80℃下可以将植物胶融化,软磁生坯易从铁板上取下来,而且不会对生坯形状有任何破坏性。

Claims (1)

1.一种软磁生坯的加工方法,具体步骤如下:
一、制备软磁材料生坯
(1)将原料混料:将三氧化二铁、四氧化三锰和氧化锌混合;所述软磁材料生坯主成分为三氧化二铁50~54%,氧化锰35~38%,氧化锌11~13%(成分百分比都以摩尔数为百分比单位);
(2)造粒:将三种原材料在纯水中混合均匀,加入粘合剂PVA,然后通过喷雾塔烘干后形成颗粒料;
(3)预烧:通过回转窑进行预烧,温度控制在850~950℃;
(4)砂磨:在此工序中,将配方所需要的添加剂加入砂磨机,即一次加杂,与原材料一起混合研磨;加入的添加剂及摩尔百分比含量为CaCO3 0.03~0.04%、Co2O3 0.3~0.4%、Nb2O5 0.04~0.05%、ZrO 0.03~0.04%;
(5)喷雾造粒:与步骤(2)相同,可通过调整喷孔和涡流片的尺寸,得到利于压制成型的粉末颗粒料;
(6)二次加杂:加入氯化锂水溶液,浓度为300~400PPM,在步骤(5)制备的粉末颗粒料进行调湿时通过调湿机喷洒在材料之中,
(7)烧结成型;
二、采用胶水粘合的方法将软磁材料生坯粘合在铁板上,再通过电磁铁吸合固定到机床上;
三、采用数控雕刻机加工软磁材料生坯。
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