CN1281908A - 集电辊及其制造方法 - Google Patents
集电辊及其制造方法 Download PDFInfo
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- CN1281908A CN1281908A CN 00110797 CN00110797A CN1281908A CN 1281908 A CN1281908 A CN 1281908A CN 00110797 CN00110797 CN 00110797 CN 00110797 A CN00110797 A CN 00110797A CN 1281908 A CN1281908 A CN 1281908A
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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Abstract
集电辊及其制造方法,涉及电镀生产中导电用的集电辊,在现有集电辊轴两端部的外表面镀有10~100μm的镍,然后镀上3~10mm的铜,在以热喷涂法覆盖50~150μm的碳化钨,再镀上3~5μm的金,最后在镀上100~300μm的银,形成集电辊的供电部分,采用此种方法制造出的集电辊,提高导电率,从而降低运转时供电部位的温度,耐磨性增强,降低维修劳动强度,实现大电流供电,寿命延长10倍以上,可广泛应用在电镀设备上。
Description
本发明涉及的是一种电镀生产中导电用的集电辊及其制造方法。
目前,电镀生产中导电用集电辊的供电部分为两端的集电圈,集电圈与电刷子接触得到供电,铜质集电圈套装在钢质的辊轴上,由于钢质辊轴与铜质的集电圈材质不同,其热膨胀率也不同,经常因接触不良或装配问题而引起左右两端电流不平衡,阻抗小的一端电流过大而引起导线的烧损。铜质集电圈与电刷子接触面磨损严重,集电圈表面形成电刷子磨损痕,不平整,增加阻力,影响导电性,需经常拆卸下来修复,拆装劳动强度大。又由于集电圈的拉伸强度为20kg/cm左右,往辊轴上安装或拆卸反复操作,带稍口内径扩大,导致集电圈位移,与电刷子产生位置偏移,从而发生过热现象。实开昭63-119673为轴上突起部分由螺帽固定,实开平1-157165集电圈内有冷却水装置,特开平10-81996加有电镀铜提高其硬度及耐磨性,这些专利都不能从根本上解决问题。
本发明的目的是提供一种防止因电流不均而烧损,耐磨性强,维修劳动强度降低,实现大电流供电的集电辊及其制造方法。
本发明的目的是这样实现的,集电辊有导电部分和供电部分构成,其特征是:集电辊的供电部分是集电辊轴两端部的外表面由里向外依次是镍层、铜层、碳化钨层、金层和银层。镍层厚度为10~100μm,铜层厚度为3~10mm,碳化钨层厚度为50~150μm,金层厚度为3~5μm,银层厚度为100~300μm。
集电辊的制造方法为:在现有集电辊轴两端部的外表面镀有10~100μm的镍,然后镀上3~10mm的铜,在以热喷涂法覆盖50~150μm的碳化钨,再镀上3~5μm的金,最后在镀上100~300μm的银,形成集电辊的供电部分,从而制造出集电辊。
本发明的优点是:铜电镀层介于薄镍层外,直接覆于辊轴上,降低电阻率,从而降低运转时供电部位的温度,表面温度由原来的90℃降至48℃左右。镍层使不同材质的钢轴与铜结合力增强,克服了因膨胀率差而引起的界面剥离现象。碳化钨层使供电接触部位耐磨性增强,银层使导电率提高,彻底解决了集电圈两端接触不良而引起的导电不平衡的问题,降低维修劳动强度。供电部位外径缩小,从而降低了外周速,即转矩,更降低了与电刷子的磨损,寿命延长10倍以上。
以下结合附图及实施例对本发明进行详细说明。
图1为本发明结构示意图。
图2为本发明具有集电圈的结构示意图。
实施例1
集电辊有导电部分和供电部分构成,集电辊的供电部分是集电辊轴1两端部的外表面由里向外依次是80μm的镍层,7mm的铜层,100μm碳化钨层,3μm的金层,200μm的银层。
集电辊的制造方法为:在集电辊轴两端部的外表面镀有80μm的镍,然后镀上7mm的铜,在以热喷涂法覆盖100μm的碳化钨,在镀上3μm的金,最后在镀上200μm的银,形成集电辊的供电部分,从而制造出整个集电辊。该集电辊经实验,维修量小,寿命长,效果极佳。
实施例2
该集电辊由导电部分和供电部分构成,集电辊的供电部分是集电辊轴1上的集电圈2外表面由里向外依次是10~100μm的镍层,3~10mm的铜层,50~150μm的碳化钨层,3~5μm的金层,100~300μm的银层。
集电辊制造方法为:在集电辊轴上的集电圈外表面镀有10~100μm的镍,然后镀上3~10mm的铜,在以热喷涂法覆盖50~150μm的碳化钨,在镀上3~5μm的金,最后在镀上100~300μm的银,形成集电辊的供电部分,制造出集电辊。该集电辊耐磨性增强。
Claims (5)
1、集电辊,集电辊有导电部分和供电部分构成,其特征是:集电辊的供电部分是集电辊轴[1]两端部的外表面由里向外依次是镍层、铜层、碳化钨层、金层和银层。
2、根据权利要求1所述的集电辊,其特征是:镍层厚度为10~100μm,铜层厚度为3~10mm,碳化钨层厚度为50~150μm,金层厚度为3~5μm,银层厚度为100~300μm。
3、根据权利要求1所述的集电辊,其特征是:集电辊的供电部分是集电辊轴[1]上的集电圈[2]外表面由里向外依次是10~100μm的镍层,3~10mm的铜层,50~150μm的碳化钨层,3~5μm的金层,100~300μm的银层。
4、集电辊的制造方法,其特征是:在现有集电辊轴两端部的外表面镀有10~100μm的镍,然后镀上3~10mm的铜,在以热喷涂法覆盖50~150μm的碳化钨,再镀上3~5μm的金,最后在镀上100~300μm的银,形成集电辊的供电部分,从而制造出集电辊。
5、根据权利要求4所述的集电辊制造方法,其特征是:在集电辊的集电圈外表面镀有10~100μm的镍,然后镀上3~10mm的铜,在以热喷涂法覆盖50~150μm的碳化钨,在镀上3~5μm的金,最后在镀上100~300μm的银,形成集电辊的供电部分,制造出集电辊。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100448139C (zh) * | 2006-07-19 | 2008-12-31 | 殷建伟 | 一种铜端环的加工工艺 |
CN102234755A (zh) * | 2010-04-23 | 2011-11-09 | 南京梅山冶金发展有限公司 | 一种覆有非晶态碳化钨涂层的新型冷轧活套辊 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100448139C (zh) * | 2006-07-19 | 2008-12-31 | 殷建伟 | 一种铜端环的加工工艺 |
CN102234755A (zh) * | 2010-04-23 | 2011-11-09 | 南京梅山冶金发展有限公司 | 一种覆有非晶态碳化钨涂层的新型冷轧活套辊 |
CN102234755B (zh) * | 2010-04-23 | 2013-03-27 | 南京梅山冶金发展有限公司 | 一种覆有非晶态碳化钨涂层的新型冷轧活套辊 |
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