CN104404481A - 一种铝材氧化后的处理方法 - Google Patents

一种铝材氧化后的处理方法 Download PDF

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CN104404481A
CN104404481A CN201410615327.XA CN201410615327A CN104404481A CN 104404481 A CN104404481 A CN 104404481A CN 201410615327 A CN201410615327 A CN 201410615327A CN 104404481 A CN104404481 A CN 104404481A
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solution
washing
nickel salt
aluminium
etch
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王洪初
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Wuxi Hongsheng Aluminium Industry Co Ltd
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Wuxi Hongsheng Aluminium Industry Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
    • C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
    • C23C18/1837—Multistep pretreatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

本发明提供一种铝材氧化后的处理方法，配置浸蚀溶液，将浸蚀后的铝合金浸入镀锌溶液中，镀锌溶液是由500g/L的氢氧化钠、100g/L的氧化锌、10g/L的酒石酸钾钠、10g/L的焦磷酸钾在蒸馏水中配置而成的；在室温度下保持40-50s，水洗后再在退除溶液中浸渍1min，接着水洗、干燥；镀镍：将镀锌后的铝合金浸入镍盐溶液中，镍盐溶液的温度控制在90℃，镍盐溶液由33g/L的硫酸镍、15g/L的次磷酸钠、50g/L的柠檬酸钠在蒸馏水中配置而成；干燥。本发明通过镀锌和镀镍，是铝材在空气中的暴露时间明显增强，而不会受氧化侵蚀。

Description

一种铝材氧化后的处理方法
技术领域
本发明涉及一种铝材氧化后的处理方法，属于机械技术领域。
背景技术
铝材内部含硅量比较多，所以不能使用氧化工序，这样会使硅氧化，变黑，而且不均匀。具体是金属表面在各种热处理、机械加工、运输及保管过程中，不可避免地会被氧化，产生一层厚薄不均的氧化层。同时，也容易受到各种油类污染和吸附一些其他的杂质。现有技术中，去除氧化层的方法并不理想，要么清除的不够干净，要么使氧化物清除的时间过短，从而导致，即便是将氧化物清除，也无法在较短的时间内完成下一步工序，使清除的过程浪费。因此，如何才能将氧化物去除，且去除的时间较长，为本发明要解决的技术问题。
发明内容
本发明提供一种铝材氧化后的处理方法，方法简单有效，能够去除铝材表面氧化物质及杂质，使铝材顺利进行下一道工序。
为解决以上技术问题，本发明提供如下技术方案：一种铝材氧化后的处理方法，首先采用除氧化皮机对铝材表面进行氧化皮处理，再采用湿法喷砂处理铝材，然后用脱脂棉沾溶剂进行擦拭，除去油污后，再以清洁的棉布擦拭数次；配置浸蚀溶液，浸蚀溶液包括氟化氢铵3-3.5%，氧化铬20-26%，磷酸钠2-2.5%，浓硫酸50-60%，硼酸0.4-0.6%，其余为水，在将浸蚀溶液保温在25-40°C之间，浸渍4.5-6min，即进行水洗、干燥；镀锌：将浸蚀后的铝合金浸入镀锌溶液中，镀锌溶液是由500g/L的氢氧化钠、100g/L的氧化锌、10g/L的酒石酸钾钠、10g/L的焦磷酸钾在蒸馏水中配置而成的；在室温度下保持40-50s，水洗后再在退除溶液中浸渍1min，接着水洗、干燥；镀镍：将镀锌后的铝合金浸入镍盐溶液中，镍盐溶液的温度控制在90℃，镍盐溶液由33g/L的硫酸镍、15g/L的次磷酸钠、50g/L的柠檬酸钠在蒸馏水中配置而成；干燥。
进一步地，所述溶剂为三氯乙烯、醋酸乙酯、丙酮、丁酮或汽油。
进一步地，所述浸蚀溶液还可以为硝酸溶液，浸蚀时间为2-5s。
 本发明涉及的这种铝材氧化后的处理方法，油污及某些吸附物，较薄的氧化层可先后用溶剂清洗和化学处理，或直接用化学处理。对于严重氧化的金属表面，氧化层较厚，就不能直接用溶剂清洗和化学处理，因此，应先进行机械处理，即采用除氧化皮机对铝材表面进行初步处理，使其表面的氧化层变薄，然后再采用溶剂清洗、化学处理，如此可使铝材表面更加光洁，为下一道胶接工序做准备；因此，本发明通过镀锌和镀镍，是铝材在空气中的暴露时间明显增强，而不会受氧化侵蚀。
具体实施方式
一种铝材氧化后的处理方法，首先采用除氧化皮机对铝材表面进行氧化皮处理，再采用湿法喷砂处理铝材，然后用脱脂棉沾溶剂进行擦拭，除去油污后，再以清洁的棉布擦拭数次；配置浸蚀溶液，浸蚀溶液包括氟化氢铵3-3.5%，氧化铬23%，磷酸钠2.2%，浓硫酸50-60%，硼酸0.5%，其余为水，在将浸蚀溶液保温在30°C之间，浸渍5min，即进行水洗、干燥；镀锌：将浸蚀后的铝合金浸入镀锌溶液中，镀锌溶液是由500g/L的氢氧化钠、100g/L的氧化锌、10g/L的酒石酸钾钠、10g/L的焦磷酸钾在蒸馏水中配置而成的；在室温度下保持45s，水洗后再在退除溶液中浸渍1min，接着水洗、干燥；镀镍：将镀锌后的铝合金浸入镍盐溶液中，镍盐溶液的温度控制在90℃，镍盐溶液由33g/L的硫酸镍、15g/L的次磷酸钠、50g/L的柠檬酸钠在蒸馏水中配置而成；干燥。
所述溶剂为三氯乙烯、醋酸乙酯、丙酮、丁酮或汽油。
所述浸蚀溶液还可以为硝酸溶液，浸蚀时间为2-5s。
本发明所述的具体实施方式并不构成对本申请范围的限制，凡是在本发明构思的精神和原则之内，本领域的专业人员能够作出的任何修改、等同替换和改进等均应包含在本发明的保护范围之内。

Claims (2)

1.一种铝材氧化后的处理方法，其特征在于，首先采用除氧化皮机对铝材表面进行氧化皮处理，再采用湿法喷砂处理铝材，然后用脱脂棉沾溶剂进行擦拭，除去油污后，再以清洁的棉布擦拭数次；配置浸蚀溶液，浸蚀溶液包括氟化氢铵3-3.5%，氧化铬20-26%，磷酸钠2-2.5%，浓硫酸50-60%，硼酸0.4-0.6%，其余为水，在将浸蚀溶液保温在25-40°C之间，浸渍4.5-6min，即进行水洗、干燥；镀锌：将浸蚀后的铝合金浸入镀锌溶液中，镀锌溶液是由500g/L的氢氧化钠、100g/L的氧化锌、10g/L的酒石酸钾钠、10g/L的焦磷酸钾在蒸馏水中配置而成的；在室温度下保持40-50s，水洗后再在退除溶液中浸渍1min，接着水洗、干燥；镀镍：将镀锌后的铝合金浸入镍盐溶液中，镍盐溶液的温度控制在90℃，镍盐溶液由33g/L的硫酸镍、15g/L的次磷酸钠、50g/L的柠檬酸钠在蒸馏水中配置而成；干燥。
2.根据权利要求1所述的一种铝材氧化后的处理方法，其特征在于，所述溶剂为三氯乙烯、醋酸乙酯、丙酮、丁酮或汽油。
CN201410615327.XA 2014-11-05 2014-11-05 一种铝材氧化后的处理方法 Pending CN104404481A (zh)

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Application publication date: 20150311