CN1215765A - 锡镍合金退镀液 - Google Patents

锡镍合金退镀液 Download PDF

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Publication number
CN1215765A
CN1215765A CN 97119766 CN97119766A CN1215765A CN 1215765 A CN1215765 A CN 1215765A CN 97119766 CN97119766 CN 97119766 CN 97119766 A CN97119766 A CN 97119766A CN 1215765 A CN1215765 A CN 1215765A
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Prior art keywords
tin
nickel alloy
hydrochloric acid
deplating
deplating liquid
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CN 97119766
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黄碧玉
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Individual
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Priority to CN 97119766 priority Critical patent/CN1215765A/zh
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Abstract

本发明公开了一种锡镍合金的退镀液,由浓盐酸和浓硝酸组成,其中浓度为浓盐酸350—700ml/l,浓硝酸为5—30ml/l,在室温下就可退镀,与目前所用的浓盐酸法、双氧水加添加剂法具有成本低、参对镀件腐蚀小的优点。

Description

锡镍合金退镀液
本发明涉及一种电镀技术,特别是锡镍合金电镀。
电镀是工业上普遍应用于表面处理,有时也根据需要进行退镀,其中有采用电解退镀,有采用化学方法退镀;现有化学法退镀,主要以盐酸为基和以硫酸为基的处理方法,如附图1和2,退镀工艺复杂。
本发明的目的是研制一种化学处理液,同处理液腐蚀退镀。
本发明的退镀液为双组份,其成份为浓盐酸和浓硝酸,其中浓盐酸为350-700ml/l,浓硝酸为5-30ml/l,退镀温度为室温。
本发明的退镀液与浓盐酸法、双氧水加添加剂法比较,具有成本低,对产品腐蚀性小,控制易的特点。
表1为以盐酸为基的退镀工艺规范;
表2为以硫酸为基的退镀工艺规范。
本发明实施例:浓盐酸(37%)350-700ml/l,
              浓硝酸(65%)5-30ml/l
操作条件:在室温下将镀件在处理液中抖动,时间10s-20min。
表一
Figure A9711976600041
表二
含量(g/l    配方号组成和操作条件 20  ① 21 22 23 24 25 26 27 28
硫酸(H2SO4)(98%,mL/L) 600-325 80-110 435-520 545-600 19份1份 1000 60%(体积)20%(体积) 1000 60
硝酸(HNO3)(65%,mL/L) 45-55
磷酸(H3PO4)(85%,mL/L) 30
盐酸(HCL)(37%,mL/L) 15-20
柠檬酸(C6H8O7.H2O) 22~38
甘油(C3H5O3)
硫脲(CS(NH2)2)   1    1
硝酸钠(NaNO3) 100~200
防染盐S 60
硫氯酸钾(KCNS) 0.6-1
溶解金属 ≤30 ≤30
温度    (℃) 室温 室温 室温 室温 20 30~40 70-90 70-90
电流密度(A/cm2 5-10 2~10 5~3 10-20
电流密度(√) 2-6 4-6 2-3 5-6
    适用性(镀层/基体) Ni、化学镀  NiAu/Fe、Cu Cr、Au/Al Cr/Al、氧化胰/cu(化学法) Cu、Ni/Zn合金 Ni+C/Cu Au/Cu AUFe Ni/Zn合金 Ag/FeCuPd/Cu Ni、Sn-N/Cu

Claims (1)

  1. 一种锡镍合金退镀液,其特征在于含浓盐酸和浓硝酸,其浓度为浓盐酸350-700ml/l,浓硝酸为5-30ml/l。
CN 97119766 1997-10-28 1997-10-28 锡镍合金退镀液 Pending CN1215765A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97119766 CN1215765A (zh) 1997-10-28 1997-10-28 锡镍合金退镀液

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Application Number Priority Date Filing Date Title
CN 97119766 CN1215765A (zh) 1997-10-28 1997-10-28 锡镍合金退镀液

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CN1215765A true CN1215765A (zh) 1999-05-05

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CN 97119766 Pending CN1215765A (zh) 1997-10-28 1997-10-28 锡镍合金退镀液

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572291A (zh) * 2012-07-25 2014-02-12 苏州协鑫光伏科技有限公司 电镀金刚石线锯镀层用腐蚀液及线锯断线连接方法
CN104878397A (zh) * 2015-06-17 2015-09-02 东北电力大学 一种用于废镀锌板表面锌层的处理液及处理方法
CN105088289A (zh) * 2015-08-12 2015-11-25 深圳市环翔精饰工业有限公司 铝基镶铜工件的电镀及退镀方法
CN105177575A (zh) * 2015-10-01 2015-12-23 常州市奥普泰科光电有限公司 一种退去黄铜表面锡镍镀层的退镀方法
CN114032549A (zh) * 2021-11-23 2022-02-11 山东晶导微电子股份有限公司 一种去除硅片化学镀镍表面镍的方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572291A (zh) * 2012-07-25 2014-02-12 苏州协鑫光伏科技有限公司 电镀金刚石线锯镀层用腐蚀液及线锯断线连接方法
CN103572291B (zh) * 2012-07-25 2015-09-30 苏州协鑫光伏科技有限公司 电镀金刚石线锯镀层用腐蚀液及线锯断线连接方法
CN104878397A (zh) * 2015-06-17 2015-09-02 东北电力大学 一种用于废镀锌板表面锌层的处理液及处理方法
CN105088289A (zh) * 2015-08-12 2015-11-25 深圳市环翔精饰工业有限公司 铝基镶铜工件的电镀及退镀方法
CN105177575A (zh) * 2015-10-01 2015-12-23 常州市奥普泰科光电有限公司 一种退去黄铜表面锡镍镀层的退镀方法
CN114032549A (zh) * 2021-11-23 2022-02-11 山东晶导微电子股份有限公司 一种去除硅片化学镀镍表面镍的方法

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