CN108505079A - 一种镁铝合金电刷镀镍工艺 - Google Patents

一种镁铝合金电刷镀镍工艺 Download PDF

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CN108505079A
CN108505079A CN201810384526.2A CN201810384526A CN108505079A CN 108505079 A CN108505079 A CN 108505079A CN 201810384526 A CN201810384526 A CN 201810384526A CN 108505079 A CN108505079 A CN 108505079A
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钱晶荣
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Datong Xincheng New Material Co Ltd
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Abstract

本发明公开了一种镁铝合金电刷镀镍工艺,包括如下步骤:S1、将采用镁铝合金制成的电刷采用抛光机打磨,然后水洗,晾干,获得试样;S2、超声波除油;S3、除油脂;S4、酸洗及活化;S5、配置预镀液;S6、将预镀液放入容器中,加热至80‑90℃,然后将S4处理后的试样放入镀液中搅拌2‑3小时后取出,采用清水清洗4‑6次,然后晾干、去除表面毛刺;S7、配置镀液;S8、将碳纳米管加入镀液中,使得碳纳米管含量为0.6‑1g/L;将120目以上的粉末活性碳加入镀液中,使得粉末活性碳含量为2g/L;用镀笔蘸取镀液进行电刷镀。本发明工艺简单,且制造成本偏低,成品性能不弱于市场上的主流成品,甚至优于进口成品。因此,能够为企业带来更大的利润空间,提高企业的竞争力。

Description

一种镁铝合金电刷镀镍工艺
技术领域
本发明涉及一种电刷,特别是涉及一种镁铝合金电刷镀镍工艺。
背景技术
电刷(Brush)是电机的一个重要组成元件,负责在旋转部件与静止部件之间传导电流。因较多用石墨制成,故也称碳刷。
目前电刷部分采用镀镍的方式增加其导电性能,且现有产品已经有能达到上述标准的产品,但是其制造成本较高,工艺复杂,也就直接导致成品价格偏高,不利于厂家的市场竞争。
因此,申请人提出一种镁铝合金电刷镀镍工艺,其工艺简单,且成本偏低,但是成品性能能够满足目前的需求。
发明内容
有鉴于现有技术的上述缺陷,本发明所要解决的技术问题是提供一种镁铝合金电刷镀镍工艺。
为实现上述目的,本发明提供了一种镁铝合金电刷镀镍工艺,包括如下步骤:
S1、将采用镁铝合金制成的电刷采用抛光机打磨,使其表面光滑、光亮,然后水洗,晾干,获得试样;
S2、超声波除油,采用丙酮溶液,将试样放入丙酮溶液中然后放入超声波清洗机的清洗室中清洗10min;所述的丙酮溶液浓度为50%以上;
S3、除油脂,将S2中的试样取出,用清水清洗4-5次,然后放入碱性溶液中进行脱脂,所述的碱性溶液由氢氧化钠、碳酸钠、氢氧化钙水按照重量份数比为3:1-2:30-40:0.5-1的比例混合而成;
将碱性溶液加热到70-80℃,然后放入试样,转动试样清洗8-10min;
S4、酸洗及活化,将S3中的试样取出,用清水清洗5-8次,再用蒸馏水清洗1-3次,然后将试样放入酸洗活化液中进行酸洗、活化;
酸洗活化液由以下组分按照重量份数比均匀混合后构成:硫酸(浓度为90%以上)100-150、氟化钾0.1-0.5、等离子水100-150;
在室温,将试样放入酸洗活化液中搅拌20-30s进行酸洗,然后放入活化液中搅拌10min进行活化,所述的活化液由AgNO3溶液(浓度为20g/L)、NH3·H2O溶液(浓度为200g/L)按照1:0.2-0.5的比例混合而成;
S5、将硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸(40%V/V)取出,溶入等离子水中,使得硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸的含量分别为硫酸镍15g/L、次亚磷酸钠14g/L、醋酸钠13g/L、氟化氢铵8g/L、氢氟酸12ml/L;
然后将硫脲加入上述溶液中,使得硫脲含量为0.5-0.8㎎/L;最后滴入氨水,调整PH值在6-6.5之间;采用真空过滤器过滤上述溶液,去除杂质,获得预镀液;
S6、将预镀液放入容器中,加热至80-90℃,然后将S4处理后的试样放入镀液中搅拌2-3小时后取出,采用清水清洗4-6次,然后晾干、去除表面毛刺;
S7、配置镀液,镀液配方如下:硫酸镍300g/L,氯化镍35g/L,硼酸35g/L,硫酸钴5g/L,十二烷基硫酸钠0.3-0.5g/L,糖精钠2g/L,1,4丁炔二醇0.35g/L、光亮剂0.2ml/L、开缸剂200Mu 9ml/L、湿润剂1ml/L、氯化钠8g/L、润湿剂W-1或W-3 0.5-1.0ml/L;
将硼酸在90℃溶解;将硫酸镍、硫酸钴、氯化钠溶解,然后将上述两种溶液混合后将其他组分放入溶液中溶化,然后滴入稀硫酸(浓度为8%)或氢氧化钠(10%溶液)调节PH值在3-4之间,搅拌2小时,获得镀液;
S8、将碳纳米管加入镀液中,使得碳纳米管含量为0.6-1g/L;将120目以上的粉末活性碳加入镀液中,使得粉末活性碳含量为2g/L;
用镀笔蘸取镀液进行电刷镀,具体如下:
将S6处理后的试样放入上述镀液中,控制温度在45-55℃之间,刷镀时间为30-40min,镀层电压为7-8V,镀笔运动速度为10-12m/min,以此对试样进行镀镍;
用瓦楞板作阴极以0.2~0.5A/dm2电流密度电解至瓦楞阴极凹处无暗灰色为止。
本发明的有益效果是:本发明工艺简单,且制造成本偏低,成品性能不弱于市场上的主流成品,甚至优于进口成品。因此,能够为企业带来更大的利润空间,提高企业的竞争力。
具体实施方式
下面结合实施例对本发明作进一步说明:
实施例一
一种镁铝合金电刷镀镍工艺,包括如下步骤:
S1、将采用镁铝合金制成的电刷采用抛光机打磨,使其表面光滑、光亮,然后水洗,晾干,获得试样;
S2、超声波除油,采用丙酮溶液,将试样放入丙酮溶液中然后放入超声波清洗机的清洗室中清洗10min;所述的丙酮溶液浓度为50%以上;
S3、除油脂,将S2中的试样取出,用清水清洗4-5次,然后放入碱性溶液中进行脱脂,所述的碱性溶液由氢氧化钠、碳酸钠、氢氧化钙水按照重量份数比为3:1.5:40:0.5的比例混合而成;
将碱性溶液加热到80℃,然后放入试样,转动试样清洗10min;
S4、酸洗及活化,将S3中的试样取出,用清水清洗5-8次,再用蒸馏水清洗1-3次,然后将试样放入酸洗活化液中进行酸洗、活化;
酸洗活化液由以下组分按照重量份数比均匀混合后构成:硫酸(浓度为90%以上)120、氟化钾0.4、等离子水120;
在室温,将试样放入酸洗活化液中搅拌20-30s进行酸洗,然后放入活化液中搅拌10min进行活化,所述的活化液由AgNO3溶液(浓度为20g/L)、NH3·H2O溶液(浓度为200g/L)按照1:0.3的比例混合而成;
S5、将硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸(40%V/V)取出,溶入等离子水中,使得硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸的含量分别为硫酸镍15g/L、次亚磷酸钠14g/L、醋酸钠13g/L、氟化氢铵8g/L、氢氟酸12ml/L;
然后将硫脲加入上述溶液中,使得硫脲含量为0.5-0.8㎎/L;最后滴入氨水,调整PH值在6-6.5之间;采用真空过滤器过滤上述溶液,去除杂质,获得预镀液;
S6、将预镀液放入容器中,加热至80-90℃,然后将S4处理后的试样放入镀液中搅拌2-3小时后取出,采用清水清洗4-6次,然后晾干、去除表面毛刺;
S7、配置镀液,镀液配方如下:硫酸镍300g/L,氯化镍35g/L,硼酸35g/L,硫酸钴5g/L,十二烷基硫酸钠0.3-0.5g/L,糖精钠2g/L,1,4丁炔二醇0.35g/L、光亮剂0.2ml/L、开缸剂200Mu 9ml/L、氯化钠8g/L、润湿剂W-1或W-3 0.8ml/L;
将硼酸在90℃溶解;将硫酸镍、硫酸钴、氯化钠溶解,然后将上述两种溶液混合后将其他组分放入溶液中溶化,然后滴入稀硫酸(浓度为8%)或氢氧化钠(10%溶液)调节PH值在3-4之间,搅拌2小时,获得镀液;
S8、将碳纳米管加入镀液中,使得碳纳米管含量为0.6-1g/L;将120目以上的粉末活性碳加入镀液中,使得粉末活性碳含量为2g/L;
用镀笔蘸取镀液进行电刷镀,具体如下:
将S6处理后的试样放入上述镀液中,控制温度在45-55℃之间,刷镀时间为30-40min,镀层电压为7-8V,镀笔运动速度为10-12m/min,以此对试样进行镀镍;
用瓦楞板作阴极以0.2~0.5A/dm2电流密度电解至瓦楞阴极凹处无暗灰色为止。
实施例二
一种镁铝合金电刷镀镍工艺,包括如下步骤:
S1、将采用镁铝合金制成的电刷采用抛光机打磨,使其表面光滑、光亮,然后水洗,晾干,获得试样;
S2、超声波除油,采用丙酮溶液,将试样放入丙酮溶液中然后放入超声波清洗机的清洗室中清洗10min;所述的丙酮溶液浓度为50%以上;
S3、除油脂,将S2中的试样取出,用清水清洗4-5次,然后放入碱性溶液中进行脱脂,所述的碱性溶液由氢氧化钠、碳酸钠、氢氧化钙水按照重量份数比为3:1: 40:1的比例混合而成;
将碱性溶液加热到70-80℃,然后放入试样,转动试样清洗8-10min;
S4、酸洗及活化,将S3中的试样取出,用清水清洗5-8次,再用蒸馏水清洗1-3次,然后将试样放入酸洗活化液中进行酸洗、活化;
酸洗活化液由以下组分按照重量份数比均匀混合后构成:硫酸(浓度为90%以上)150、氟化钾0.5、等离子水100;
在室温,将试样放入酸洗活化液中搅拌20-30s进行酸洗,然后放入活化液中搅拌10min进行活化,所述的活化液由AgNO3溶液(浓度为20g/L)、NH3·H2O溶液(浓度为200g/L)按照1:0.3的比例混合而成;
S5、将硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸(40%V/V)取出,溶入等离子水中,使得硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸的含量分别为硫酸镍15g/L、次亚磷酸钠14g/L、醋酸钠13g/L、氟化氢铵8g/L、氢氟酸12ml/L;
然后将硫脲加入上述溶液中,使得硫脲含量为0.5-0.8㎎/L;最后滴入氨水,调整PH值在6-6.5之间;采用真空过滤器过滤上述溶液,去除杂质,获得预镀液;
S6、将预镀液放入容器中,加热至80-90℃,然后将S4处理后的试样放入镀液中搅拌2-3小时后取出,采用清水清洗4-6次,然后晾干、去除表面毛刺;
S7、配置镀液,镀液配方如下:硫酸镍300g/L,氯化镍35g/L,硼酸35g/L,硫酸钴5g/L,十二烷基硫酸钠0.3-0.5g/L,糖精钠2g/L,1,4丁炔二醇0.35g/L、光亮剂0.2ml/L、开缸剂200Mu 9ml/L、湿润剂1ml/L、氯化钠8g/L、润湿剂W-1或W-3 0.6ml/L;
将硼酸在90℃溶解;将硫酸镍、硫酸钴、氯化钠溶解,然后将上述两种溶液混合后将其他组分放入溶液中溶化,然后滴入稀硫酸(浓度为8%)或氢氧化钠(10%溶液)调节PH值在3-4之间,搅拌2小时,获得镀液;
S8、将碳纳米管加入镀液中,使得碳纳米管含量为0.6-1g/L;将120目以上的粉末活性碳加入镀液中,使得粉末活性碳含量为2g/L;
用镀笔蘸取镀液进行电刷镀,具体如下:
将S6处理后的试样放入上述镀液中,控制温度在45-55℃之间,刷镀时间为30-40min,镀层电压为7-8V,镀笔运动速度为10-12m/min,以此对试样进行镀镍;
用瓦楞板作阴极以0.2~0.5A/dm2电流密度电解至瓦楞阴极凹处无暗灰色为止。
本发明未详述之处,均为本领域技术人员的公知技术。
以上详细描述了本发明的较佳具体实施例。应当理解,本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此,凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案,皆应在由权利要求书所确定的保护范围内。

Claims (4)

1.一种镁铝合金电刷镀镍工艺,其特征是:包括如下步骤:
S1、将采用镁铝合金制成的电刷采用抛光机打磨,使其表面光滑、光亮,然后水洗,晾干,获得试样;
S2、超声波除油,采用丙酮溶液,将试样放入丙酮溶液中然后放入超声波清洗机的清洗室中清洗10min;所述的丙酮溶液浓度为50%以上;
S3、除油脂,将S2中的试样取出,用清水清洗4-5次,然后放入碱性溶液中进行脱脂,所述的碱性溶液由氢氧化钠、碳酸钠、氢氧化钙水按照重量份数比为3:1-2:30-40:0.5-1的比例混合而成;
将碱性溶液加热到70-80℃,然后放入试样,转动试样清洗8-10min;
S4、酸洗及活化,将S3中的试样取出,用清水清洗5-8次,再用蒸馏水清洗1-3次,然后将试样放入酸洗活化液中进行酸洗、活化;
酸洗活化液由以下组分按照重量份数比均匀混合后构成:硫酸100-150、氟化钾0.1-0.5、等离子水100-150;
在室温,将试样放入酸洗活化液中搅拌20-30s进行酸洗,然后放入活化液中搅拌10min进行活化,所述的活化液由AgNO3溶液、NH3·H2O溶液按照1:0.2-0.5的比例混合而成;
S5、将硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸取出,溶入等离子水中,使得硫酸镍、次亚磷酸钠、醋酸钠、氟化氢铵、氢氟酸的含量分别为硫酸镍15g/L、次亚磷酸钠14g/L、醋酸钠13g/L、氟化氢铵8g/L、氢氟酸12ml/L;
然后将硫脲加入上述溶液中,使得硫脲含量为0.5-0.8㎎/L;最后滴入氨水,调整PH值在6-6.5之间;采用真空过滤器过滤上述溶液,去除杂质,获得预镀液;
S6、将预镀液放入容器中,加热至80-90℃,然后将S4处理后的试样放入镀液中搅拌2-3小时后取出,采用清水清洗4-6次,然后晾干、去除表面毛刺;
S7、配置镀液,镀液配方如下:硫酸镍300g/L,氯化镍35g/L,硼酸35g/L,硫酸钴5g/L,十二烷基硫酸钠0.3-0.5g/L,糖精钠2g/L,1,4丁炔二醇0.35g/L、光亮剂0.2ml/L、开缸剂200Mu 9ml/L、氯化钠8g/L、润湿剂W-1或W-3 0.5-1.0ml/L;
将硼酸在90℃溶解;将硫酸镍、硫酸钴、氯化钠溶解,然后将上述两种溶液混合后将其他组分放入溶液中溶化,然后滴入稀硫酸(浓度为8%)或氢氧化钠(10%溶液)调节PH值在3-4之间,搅拌2小时,获得镀液;
S8、将碳纳米管加入镀液中,使得碳纳米管含量为0.6-1g/L;将120目以上的粉末活性碳加入镀液中,使得粉末活性碳含量为2g/L;用镀笔蘸取镀液进行电刷镀。
2.如权利要求1所述的镁铝合金电刷镀镍工艺,其特征是:S4中所述的硫酸浓度为90%以上。
3.如权利要求1所述的镁铝合金电刷镀镍工艺,其特征是:S4中AgNO3溶液浓度为20g/L、NH3·H2O溶液浓度为200g/L。
4.如权利要求1所述的镁铝合金电刷镀镍工艺,其特征是:S8中还包括如下步骤:将S6处理后的试样放入上述镀液中,控制温度在45-55℃之间,刷镀时间为30-40min,镀层电压为7-8V,镀笔运动速度为10-12m/min,以此对试样进行镀镍;用瓦楞板作阴极以0.2~0.5A/dm2电流密度电解至瓦楞阴极凹处无暗灰色为止。
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