CN103608125A - 具有增强的抗腐蚀保护的电解镀锌方法 - Google Patents
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- 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
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Abstract
本发明涉及一种电解镀锌、厚层钝化和后续处理以增强抗腐蚀保护的方法,其中,所述方法包括分别预处理和清洁需防腐蚀的产品,在碱性介质中镀锌和终处理。所述终处理包括多次将要保护的产品浸入硅酸盐和聚酯的水分散体以及从中移除产品。
Description
技术领域
本发明涉及一种电解镀锌、厚层钝化和后续处理以增强抗腐蚀保护的方法,其中,所述方法包括分别预处理和清洁需防腐蚀的产品,在碱性介质中镀锌和终处理。
背景技术
前述的电解镀锌方法是基本公知的。尽管公知方法可满足用户设定的要求,但是其在相对侵蚀介质中使用时也具有经证实的缺陷,尤其在相对高功率消耗方面。另外,抗腐蚀保护的层厚度在对气候负荷有很高甚至非常高要求的产品上超过20μm。
发明内容
本发明的目的是创建具有增强的抗腐蚀保护的电解镀锌方法,可纠正公知方案的缺陷。
根据本发明的具有增强的抗腐蚀保护的电解镀锌方法包括预处理,其中将有机杂质、铁锈、浮渣等从要保护的产品的表面移除。所述预处理在包括偏硅酸钠、氢氧化钠、碳酸钠的碱性溶液以及包括氢氧化钠和碳酸钠的酸性水溶液中执行。依靠所述预处理,要保护的产品的表面准备用于下一方法步骤。
根据本发明的具有增强的抗腐蚀保护的电解镀锌方法的进一步步骤包括在碱性无氰介质中执行镀锌。根据本发明提供的是,所述无氰介质的碱性尽可能高。所述碱性无氰介质包括硅酸、包括硅酸钠的钠盐、包括氮的聚合物水溶液成分、三钠盐和三嗪的营养液、以及包括甲醇和甲醛的聚合物溶液。
在预处理和镀锌加工这些步骤之间,在每个操作之后分别交替地执行依靠气流***、倾泻***和喷洒***的清洗。
此外,根据本发明的具有增强的抗腐蚀保护的电解镀锌方法包括终处理步骤,其中,基于三价铬化合物和钴化合物的厚钝化层代表了对要保护的产品镀锌所施加的锌涂层上的基本层。在作业池中于温度范围大约19℃至大约30℃之间处理所述要保护的产品,优选大约21℃至大约28℃之间。所述作业池包括的pH值范围在大约2.0至大约3.0之间,优选在大约2.3至大约2.7之间。之后,依靠纯净水冲洗所述产品,优选依靠去矿物质和去离子水。先前步骤之后是将所述产品沉浸入硅酸盐和聚酯的聚合物水分散体第一时间段。根据本发明提供的是,所述聚合物水分散体中的硅酸盐和聚酯之间的比率为约10:1。所述第一时间段的范围在40秒至80秒之间,优选50秒至70秒之间。此外,根据本发明提供的是,所述聚合物水分散体的pH值的范围在大约8.0至大约11.0之间,优选在大约8.5至大约10.5之间。
在继续的方法中,将所述要保护的产品从所述硅酸盐和聚酯的聚合物水分散体移除第二时间段。根据本发明提供的是,所述第二时间段的范围是大约10秒。
从所述硅酸盐和聚酯的聚合物水分散体移除所述产品之后是,将所述要保护的产品重浸入所述硅酸盐和聚酯的聚合物水分散体第三时间段。所述第三时间段的范围在15秒至50秒之间,优选20秒至40秒之间。
根据本发明优选的是,在该方法期间所述硅酸盐和聚酯的聚合物水分散体必须连续搅动。
上述公开的方法步骤之后是,从要保护的产品排出和/或移除多余的所述聚合物水分散体,之后是烘干。烘干在第四时间段在封闭或者局部封闭的烘干室中依靠热空气执行,烘干室的温度的范围在大约50℃至大约90℃之间,优选温度范围在大约60℃至大约80℃之间。根据本发明提供的是,所述第四时间段的范围在6分钟至15分钟之间,优选8分钟至12分钟之间。
具体实施方式
上述公开的根据本发明的具有增强的抗腐蚀保护的电解镀锌方法整体在相对低温下执行,因而比目前的方案具有显著优势。因而,低温厚层钝化的方法的特征在于显著节约能量,因为它可以在室温下执行。另外,在该方法期间使用具有小量Zn2+和Fe2+离子的较少侵蚀介质,使得废水不包括纳米颗粒。依靠本发明所公开的方法,增加了对旨在用来制造硬件和其他锌涂层需要高抗腐蚀保护的扇段的产品的抗腐蚀保护。抗腐蚀保护层均匀分布在整个要保护的产品的表面上面。依靠根据本发明的方法,获得了显著的抗腐蚀保护,抗腐蚀保护的平均层的厚度的厚度范围为10μm,不会降低对极限气候条件下使用的产品的抗腐蚀保护。
Claims (10)
1.一种电解镀锌、厚层钝化和后续处理以增强抗腐蚀保护的方法,其中,所述方法包括分别预处理和清洁需防腐蚀的产品,在碱性介质中镀锌和终处理,其特征在于,在终处理中,基于三价铬化合物和钴化合物的厚钝化层代表了对要保护的产品镀锌所施加的锌涂层上的基本层,所述终处理包括:
a)在作业池中处理要保护的产品;
b)依靠纯净水冲洗要保护的产品,优选依靠去矿物质和去离子水;
c)将要保护的产品沉浸入硅酸盐和聚酯的聚合物水分散体第一时间段,所述硅酸盐和聚酯的聚合物水分散体必须连续搅动;
d)将要保护的产品从所述硅酸盐和聚酯的聚合物水分散体移除第二时间段;
e)将要保护的产品重浸入所述硅酸盐和聚酯的聚合物水分散体第三时间段,所述硅酸盐和聚酯的聚合物水分散体必须连续搅动;
f)从要保护的产品排出和/或移除多余的所述硅酸盐和聚酯的聚合物水分散体;
g)在第四时间段依靠热空气烘干要保护的产品。
2.根据权利要求1所述的方法,其特征在于,作业池的温度的范围在大约19℃至大约30℃之间,优选大约21℃至大约28℃之间。
3.根据权利要求1所述的方法,其特征在于,作业池的pH值的范围在大约2.0至大约3.0之间,优选在大约2.3至大约2.7之间。
4.根据权利要求1所述的方法,其特征在于,所述聚合物水分散体中的硅酸盐和聚酯之间的比率为约10:1。
5.根据前述权利要求中任一项所述的方法,其特征在于,所述聚合物水分散体的pH值的范围在大约8.0至大约11.0之间,优选在大约8.5至大约10.5之间。
6.根据前述权利要求中任一项所述的方法,其特征在于,所述第一时间段的范围在40秒至80秒之间,优选50秒至70秒之间。
7.根据前述权利要求中任一项所述的方法,其特征在于,所述第二时间段的范围是大约10秒。
8.根据前述权利要求中任一项所述的方法,其特征在于,所述第三时间段的范围在15秒至50秒之间,优选20秒至40秒之间。
9.根据前述权利要求中任一项所述的方法,其特征在于,所述热烘干空气的温度的范围在大约50℃至大约90℃之间,优选在大约60℃至大约80℃之间。
10.根据前述权利要求中任一项所述的方法,其特征在于,所述第四时间段的范围在6分钟至15分钟之间,优选8分钟至12分钟之间。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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SIP201100179 | 2011-05-19 | ||
SI201100179A SI23452A (sl) | 2011-05-19 | 2011-05-19 | Postopek elektrolitskega cinkanja s povečano protikorozijsko zaščito |
PCT/EP2012/057334 WO2012156176A1 (en) | 2011-05-19 | 2012-04-23 | A process of electrolytic galvanizing with an enhanced anti-corrosive protection |
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CN103608125A true CN103608125A (zh) | 2014-02-26 |
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CN201280022064.0A Pending CN103608125A (zh) | 2011-05-19 | 2012-04-23 | 具有增强的抗腐蚀保护的电解镀锌方法 |
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EP (1) | EP2712331B1 (zh) |
CN (1) | CN103608125A (zh) |
EA (1) | EA024221B1 (zh) |
SI (1) | SI23452A (zh) |
WO (1) | WO2012156176A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112410710A (zh) * | 2020-11-11 | 2021-02-26 | 合肥亿昌兴精密机械有限公司 | 抗腐蚀高强度的镀锌板和镀锌板制备工艺 |
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MX2018013229A (es) * | 2016-04-29 | 2019-02-13 | Chemetall Gmbh | Proceso para el tratamiento anticorrosion de una superficie metalica con remocion corrosiva reducida de material. |
IT201700117705A1 (it) | 2017-10-18 | 2019-04-18 | Me Ga S R L | Telaio a cestelli rotanti per galvanizzazione |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5108554A (en) * | 1990-09-07 | 1992-04-28 | Collis, Inc. | Continuous method for preparing steel parts for resin coating |
CN1740401A (zh) * | 2000-03-22 | 2006-03-01 | 以利沙控股有限公司 | 一种用于处理导电表面的增强性工艺方法以及由此形成的产品 |
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GB2211762B (en) * | 1987-11-13 | 1991-11-13 | Kobe Steel Ltd | Zinc alloy-plated corrosion preventive steel sheet having an organic coating layer thereon and a method for making the same |
US6465114B1 (en) * | 1999-05-24 | 2002-10-15 | Nippon Steel Corporation | -Zn coated steel material, ZN coated steel sheet and painted steel sheet excellent in corrosion resistance, and method of producing the same |
TWI259216B (en) * | 2002-07-23 | 2006-08-01 | Kansai Paint Co Ltd | Surface-treated steel sheet excellent in resistance to white rust and method for production thereof |
DE10309908B4 (de) * | 2003-03-07 | 2006-12-14 | Benteler Stahl/Rohr Gmbh | Verfahren zur Herstellung eines verzinkten und mit einem Polymer beschichteten Stahlrohrs |
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- 2011-05-19 SI SI201100179A patent/SI23452A/sl not_active IP Right Cessation
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2012
- 2012-04-23 EP EP12716407.7A patent/EP2712331B1/en not_active Not-in-force
- 2012-04-23 EA EA201370240A patent/EA024221B1/ru not_active IP Right Cessation
- 2012-04-23 CN CN201280022064.0A patent/CN103608125A/zh active Pending
- 2012-04-23 WO PCT/EP2012/057334 patent/WO2012156176A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5108554A (en) * | 1990-09-07 | 1992-04-28 | Collis, Inc. | Continuous method for preparing steel parts for resin coating |
CN1740401A (zh) * | 2000-03-22 | 2006-03-01 | 以利沙控股有限公司 | 一种用于处理导电表面的增强性工艺方法以及由此形成的产品 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112410710A (zh) * | 2020-11-11 | 2021-02-26 | 合肥亿昌兴精密机械有限公司 | 抗腐蚀高强度的镀锌板和镀锌板制备工艺 |
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EP2712331A1 (en) | 2014-04-02 |
EA024221B1 (ru) | 2016-08-31 |
WO2012156176A1 (en) | 2012-11-22 |
EP2712331B1 (en) | 2016-11-16 |
SI23452A (sl) | 2012-02-29 |
EA201370240A1 (ru) | 2014-02-28 |
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