CN112198027B - 漆包线底漆面漆层道次显微分析方法 - Google Patents
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Abstract
本发明公开了漆包线底漆面漆层道次显微分析方法,它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴面漆分层试剂,滴在铜线截面处,并放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴底漆分层试剂在铜线截面处,放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。本发明的有益效果是可以分析涂覆过程道次厚薄导致的固化的差异,从而分析漆包线漆的性能差异,以及第一道次与铜材的接触厚度,从而判断附着力低下和丧失原因。
Description
技术领域
本发明涉及漆包线技术领域,尤其涉及漆包线底漆面漆层道次显微分析方法。
背景技术
漆包线是电子线材中最具代表性的产品,漆包线是绕组线的一个主要品种,由导体和绝缘层两部组成,裸线经退火软化后,再经过多次涂漆,烘焙而成。涂漆通过多道次重复固化烘烤,形成了一种类似洋葱结构涂层。如中国发明专利CN109859899A公开了一种扁平漆包线制作工艺,其中包括涂漆:清洁的扁铜丝在涂漆机构上进行薄层多道次涂漆;烘焙;又如中国发明专利授权公告号CN102592752B公开的一种单涂层漆包线的生产方法,;(3)涂漆:选用220级聚酰胺酰亚胺漆包线漆,进行涂漆,涂漆道次为10-24道,每道涂覆得绝缘漆层厚度在0.003-0.004MM之间。涂层之间在不进行处理时,其截面为一整体。而目前没有专门的办法来分析涂覆过程道次厚薄导致的固化的差异,也无法分析第一道次与铜材的接触厚度。
发明内容
本发明要解决的技术问题是现有的漆包线涂漆需要进行多道次的涂漆,无法分析各个道次的厚薄,进而导致无法分析不同漆包线漆之间的性能差异,也无法分析漆包线漆附着力低下和丧失的原因,为此提供一种漆包线底漆面漆层道次显微分析方法。
本发明的技术方案是:漆包线底漆面漆层道次显微分析方法,它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴面漆分层试剂,滴在铜线截面处,并放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴底漆分层试剂在铜线截面处,放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。
上述方案中所述步骤(3)的面漆分层试剂是强极性有机溶剂。
上述方案中所述强极性有机溶剂是N-甲基吡咯烷酮、二甲基乙酰胺、二甲基甲酰胺中的一种或几种。
上述方案中所述强极性有机溶剂的质量比浓度为0.5%-99.5%。
上述方案中所述步骤(3)的烘箱温度90℃-100℃,处理时间为10min-15min。
上述方案中所述步骤(4)的底漆分层试剂是强碱水溶液。
上述方案中所述强碱水溶液是氢氧化钾、氢氧化钠、氢氧化钡的一种或几种。
上述方案中所述强碱水溶液的质量比浓度为0.5%-60%。
上述方案中所述步骤(4)的烘箱温度90℃-100℃,处理时间为5min-10min。
本发明的有益效果是面漆为聚酰胺酰亚胺为热塑性材料,为强极性高分子材料,用面层分层试剂,可以对聚酰胺酰亚胺发生溶胀作用,最容易渗透和溶胀的位置为层间结合处;聚酯绝缘漆(PE)/聚酯亚胺绝缘漆(PEI)/聚氨酯绝缘漆(PUR)或聚酰亚胺绝缘漆(PI)通常情况下为热固性高分子材料,很难通过溶剂对其进行溶胀分层处理。通过底层分层试剂,可以使得底层试剂与上述高分子绝缘材料进行局部的化学反应,在化学反应后会出现整体腐蚀,在层间由于处于化学和物理结合部位最薄弱,腐蚀后,容易出现收缩分层,如此在显微镜下就可以清楚的区分各个道次之间的厚薄,可以分析涂覆过程道次厚薄导致的固化的差异,从而分析漆包线漆的性能差异,以及第一道次与铜材的接触厚度,从而判断附着力低下和丧失原因。
附图说明
图1是本发明的漆包线在金相研磨机上进行研磨后的漆包线截面照片;
图2是本发明的漆包线在滴取面漆分层试剂后的显微镜截面照片;
图3是本发明的漆包线在滴取底漆分层试剂后的显微镜截面照片。
具体实施方式
下面结合附图 ,对本发明实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所有其他实施例,都属于本发明的保护范围。
实施例1:漆包线底漆面漆层道次显微分析方法,它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴强极性有机溶剂滴在铜线截面处,并放入烘箱中,烘箱温度90℃,处理时间为10min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴强碱水溶液在铜线截面处,放入烘箱中,烘箱温度90℃,处理时间为5min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。
实施例2:漆包线底漆面漆层道次显微分析方法,它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴强极性有机溶剂滴在铜线截面处,并放入烘箱中,烘箱温度100℃,处理时间为12min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴强碱水溶液在铜线截面处,放入烘箱中,烘箱温度100℃,处理时间为7min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。
实施例3:漆包线底漆面漆层道次显微分析方法,它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴强极性有机溶剂滴在铜线截面处,并放入烘箱中,烘箱温度110℃,处理时间为15min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴强碱水溶液在铜线截面处,放入烘箱中,烘箱温度110℃,处理时间为10min,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。
如图1所示,漆包线被固定模固定后,在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;如图2所示,在滴取面漆分层试剂后的显微镜截面照片,可以清晰的区分面漆的各个道次的厚度,因为试剂对固定相有溶解性,可能在截面处出现模糊现象,用少量面层分层试剂细心擦拭皆可。如图3所示,在滴取底漆分层试剂后的显微镜截面照片,可以清晰的区分底漆的各个道次的厚度,
本发明中的底层分层试剂:强碱水溶液,包括并不限于氢氧化钾或氢氧化钠、氢氧化钡等, 水溶液浓度 0.5-60% w/w。面层分层试剂:强极性有机溶剂,包括并不限于N-甲基吡咯烷酮(NMP)/二甲基乙酰胺(DMAc)/二甲基甲酰胺(DMF)等水溶液浓度0.5-99.5% w/w。
面漆作用机理:面漆为聚酰胺酰亚胺为热塑性材料,为强极性高分子材料,用面层分层试剂,可以对聚酰胺酰亚胺发生溶胀作用,最容易渗透和溶胀的位置为层间结合处。
底漆及聚酰亚胺绝缘漆作用机理:聚酯绝缘漆(PE)/聚酯亚胺绝缘漆(PEI)/聚氨酯绝缘漆(PUR)或聚酰亚胺绝缘漆(PI)通常情况下为热固性高分子材料,很难通过溶剂对其进行溶胀分层处理。通过底层分层试剂,可以使得底层试剂与上述高分子绝缘材料进行局部的化学反应,在化学反应后会出现整体腐蚀,在层间由于处于化学和物理结合部位最薄弱,腐蚀后,容易出现收缩分层。
Claims (9)
1.漆包线底漆面漆层道次显微分析方法,其特征是:它包括以下步骤:(1)、制备漆包线固定模;(2)、在金相研磨机上进行研磨,此时可在显微镜下观察清晰的界面图;(3)、用滴管吸取1滴面漆分层试剂,滴在铜线截面处,并放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可;(4)、采用滴管吸取1滴底漆分层试剂在铜线截面处,放入烘箱中,处理后用流动水冲洗截面处,用纸巾擦干,在截面完全干燥情况下,在显微镜下观察即可。
2.如权利要求1所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述步骤(3)的面漆分层试剂是强极性有机溶剂。
3.如权利要求2所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述强极性有机溶剂是N-甲基吡咯烷酮、二甲基乙酰胺、二甲基甲酰胺中的一种或几种。
4.如权利要求3所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述强极性有机溶剂的质量比浓度为0.5%-99.5%。
5.如权利要求1所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述步骤(3)的烘箱温度90℃-110℃,处理时间为10min-15min。
6.如权利要求1所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述步骤(4)的底漆分层试剂是强碱水溶液。
7.如权利要求6所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述强碱水溶液是氢氧化钾、氢氧化钠、氢氧化钡的一种或几种。
8.如权利要求7所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述强碱水溶液的质量比浓度为0.5%-60%。
9.如权利要求1所述的漆包线底漆面漆层道次显微分析方法,其特征是:所述步骤(4)的烘箱温度90℃-110℃,处理时间为5min-10min。
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CN104266595A (zh) * | 2014-09-29 | 2015-01-07 | 宁波金田新材料有限公司 | 漆包线漆膜厚度的一种显微检测方法 |
CN105043276A (zh) * | 2015-07-15 | 2015-11-11 | 浙江华电器材检测研究所 | 纤维复合芯棒的分层厚度测定方法 |
CN110157233A (zh) * | 2019-04-18 | 2019-08-23 | 贵州航天林泉电机有限公司 | 一种聚酰亚胺漆包线脱漆方法 |
CN110749596A (zh) * | 2019-09-05 | 2020-02-04 | 北京北汽模塑科技有限公司 | 一种汽车多涂层油漆件漆膜厚度测试方法 |
CN111551123A (zh) * | 2020-04-30 | 2020-08-18 | 铜陵精达里亚特种漆包线有限公司 | 一种漆包线漆膜涂覆均匀性的检测方法 |
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