CN102747408A - 铅基多元合金电镀阳极 - Google Patents

铅基多元合金电镀阳极 Download PDF

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Publication number
CN102747408A
CN102747408A CN2012102430486A CN201210243048A CN102747408A CN 102747408 A CN102747408 A CN 102747408A CN 2012102430486 A CN2012102430486 A CN 2012102430486A CN 201210243048 A CN201210243048 A CN 201210243048A CN 102747408 A CN102747408 A CN 102747408A
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Prior art keywords
anode
lead
multivariant
alloy
temperature
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Inventor
李文刚
孙宣杰
石宝文
赵文军
吕中慧
张伟东
李连喜
刘庆东
王金栋
高培军
王卓
臧磊
柴钰
付超
王雯
宝民
刘芳
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Inner Mongolia First Machinery Group Corp
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Inner Mongolia First Machinery Group Corp
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Priority to CN2012102430486A priority Critical patent/CN102747408A/zh
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Abstract

本发明涉及一种铅基多元合金电镀阳极，特别是涉及一种铅基多元合金的电镀铬的阳极材料。通过对电镀铬阳极材料的改进，以解决电源选择限制、阳极强度低、铁杂质积累以及阳极区温度上升快等问题。由锡、锑、铋中的任两种或全部三种金属与铅组成合金材料制成阳极，其具体含量为(重量百分比)：锡含量5％～10％，锑含量2％～6％，铋含量3％～9％，其余为铅。采用本发明阳极电镀，阳极区温度与槽液温度相近，可获得良好的镀层质量。

Description

铅基多元合金电镀阳极
技术领域：
本发明是一种电镀阳极，特别是涉及一种铅基多元合金的电镀铬的阳极材料。
背景技术：
目前，电镀铬使用的阳极通常是：1)纯铅阳极，或含锑6％～8％的铅合金，必须使用波纹因素小的电源，阳极需要定期刷洗，否则阳极导电性差。2)含锡30％～50％，银1％的铅合金，或含锡10％的铅合金阳极，阳极强度低，复杂零件电镀时，制造仿型阳极易变形。3)普通钢，易产生铁杂质积累，光亮区变窄，深镀能力差。4)石墨阳极，阳极区温度上升快，造成镀厚能力差、镀层内应力大、镀层结合力低。
综上所述以上四种电镀铬的阳极不足之处在于，电源选择限制、阳极强度低、铁杂质积累、阳极区温度上升快。
发明内容：
本发明的目的是通过对电镀铬阳极材料选的改进，以解决上述电源选择限制、阳极强度低、铁杂质积累以及阳极区温度上升快等问题。
本发明是通过以下技术方案实现的：
一种铅基多元合金电镀阳极，由锡、锑、铋中的任两种或全部三种金属与铅组成合金材料制成阳极，其具体含量为(重量百分比)：锡含量5％～10％，锑含量2％～6％，铋含量3％～9％，其余为铅。
采用本发明阳极电镀，阳极区温度与槽液温度相近，可获得良好的镀层质量。
具体实施方式：
本发明采用的电镀铬阳极，阳极为由铅与锡、锑、铋中任两种或全部三种金属组成的铅合金，具体为铅为余量，锡含量5％～10％，锑含量2％～6％，铋含量3％～9％组成的铅合金。将其熔融铸造成阳极，或制成合金阳极板，或按被镀工件制成仿形阳极。
下面结合实施例对本发明作进一步的描述。
实施例1：
采用配方为：铬酐230～270g/L，硫酸2.3～2.7g/L；温度55℃～60℃，电流密度50～60A/dm2。阳极为锡含量8％，锑含量5％，铋含量4％，铅为余量的阳极进行电镀。可选用普通电镀电源选择，且仿形阳极不变形，铁杂质积累少、阳极区温度与槽液温度相近，获得的镀层质量良好，电流效率提高5％以上，深度能力提高30％以上。
实施例2：
采用配方为：铬酐280～320g/L，硫酸2.8～3.2g/L，三价铬(Cr3+)2.8～6.4g/L；温度40℃～50℃，电流密度10A/dm2～20A/dm2。阳极为锡含量10％，铋含量6％，铅为余量的阳极进行电镀。可选用普通电镀电源选择，且仿形阳极不变形，铁杂质积累少、阳极区温度与槽液温度相近，获得的镀层质量良好。

Claims (1)

1.一种铅基多元合金电镀阳极，其特征是：由锡、锑、铋中的任两种或全部三种金属与铅组成合金材料制成阳极，其具体含量为(重量百分比)：锡含量5％～10％，锑含量2％～6％，铋含量3％～9％，其余为铅。
CN2012102430486A 2012-07-12 2012-07-12 铅基多元合金电镀阳极 Pending CN102747408A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396345A (zh) * 2018-05-29 2018-08-14 上海应用技术大学 一种铅锑合金电镀液和电镀工艺

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US4753688A (en) * 1985-04-01 1988-06-28 Asarco Incorporated Process for strengthening lead-antimony alloys
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JPH01117279A (ja) * 1987-10-30 1989-05-10 Shin Kobe Electric Mach Co Ltd 鉛蓄電池
JPH02299155A (ja) * 1989-05-12 1990-12-11 Matsushita Electric Ind Co Ltd 鉛蓄電池
EP0855753A1 (en) * 1997-01-22 1998-07-29 Sociedad Espanola Del Acumulador Tudor, S.A. Special lead alloy containing antimomy and tin and positive electrode grid for use in lead-acid accumulator having improved corrosion resistance at high temperatures
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US4124482A (en) * 1974-11-22 1978-11-07 Knight Bill J Method and apparatus for casting anodes
US4753688A (en) * 1985-04-01 1988-06-28 Asarco Incorporated Process for strengthening lead-antimony alloys
JPH01117272A (ja) * 1987-10-29 1989-05-10 Shin Kobe Electric Mach Co Ltd 鉛蓄電池
JPH01117279A (ja) * 1987-10-30 1989-05-10 Shin Kobe Electric Mach Co Ltd 鉛蓄電池
JPH02299155A (ja) * 1989-05-12 1990-12-11 Matsushita Electric Ind Co Ltd 鉛蓄電池
EP0855753A1 (en) * 1997-01-22 1998-07-29 Sociedad Espanola Del Acumulador Tudor, S.A. Special lead alloy containing antimomy and tin and positive electrode grid for use in lead-acid accumulator having improved corrosion resistance at high temperatures
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CN101949031A (zh) * 2010-10-18 2011-01-19 中南大学 一种硫酸体系用复合多孔电极及其制备方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396345A (zh) * 2018-05-29 2018-08-14 上海应用技术大学 一种铅锑合金电镀液和电镀工艺

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Application publication date: 20121024