CN103205740A - 镀锌无铬蓝白色钝化剂 - Google Patents
镀锌无铬蓝白色钝化剂 Download PDFInfo
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- CN103205740A CN103205740A CN2013101591413A CN201310159141A CN103205740A CN 103205740 A CN103205740 A CN 103205740A CN 2013101591413 A CN2013101591413 A CN 2013101591413A CN 201310159141 A CN201310159141 A CN 201310159141A CN 103205740 A CN103205740 A CN 103205740A
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- zinc
- white
- blue
- free blue
- passivating agent
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- 238000007747 plating Methods 0.000 title abstract description 6
- 239000001509 sodium citrate Substances 0.000 claims abstract description 4
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 4
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 3
- 229940038773 trisodium citrate Drugs 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 abstract 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 abstract 1
- 239000011684 sodium molybdate Substances 0.000 abstract 1
- 235000015393 sodium molybdate Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000002161 passivation Methods 0.000 description 11
- 239000011651 chromium Substances 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 230000009849 deactivation Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JTYRXXKXOULVAP-UHFFFAOYSA-N 1,2-dibromo-3-phenoxybenzene Chemical compound BrC1=CC=CC(OC=2C=CC=CC=2)=C1Br JTYRXXKXOULVAP-UHFFFAOYSA-N 0.000 description 1
- KTADSLDAUJLZGL-UHFFFAOYSA-N 1-bromo-2-phenylbenzene Chemical group BrC1=CC=CC=C1C1=CC=CC=C1 KTADSLDAUJLZGL-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
本发明涉及了镀锌无铬蓝白色钝化剂，采用钼酸钠、柠檬酸钠、硝酸钴等物品通过一定的比例溶解混合均匀而成，其能显著提高镀层的耐蚀性能，同时赋予均匀的蓝白色。
Description
技术领域
本发明涉及镀锌无铬蓝白色钝化剂，尤其涉及一种镀锌无铬蓝白色钝化剂的成分、各成分的作用及配制方法。
背景技术
长期以来，电镀锌及锌合金镀层都要做钝化处理，以提高耐蚀性和装饰性。目前使用最广泛的是铬酸盐钝化处理。主要原因是该工艺简单、成本低、抗蚀性能好。经铬酸盐处理后形成铬/基体金属混合氧化物膜层，膜层中铬主要以六价和三价形式存在。
环保型的钝化主要采用三价铬和无铬钝化两个方向。目前有三价铬钝化也宣称是无铬钝化，但是三价铬钝化其钝化液及钝化产品中含有的三价铬离子会转变成六价铬离子，同时三价铬离子本身也具有毒害性，因而并不是真正意义上的无铬钝化。
随着人类生活及质量的不断改善和提高，对各种产品的环保品的环保要求也越来越高。电脑、通信、消费型电子及汽车零配件，有些要出口国外，环保要求很高，根据GB-2008《电镀污染物排放标准》，对Pd、Hg、Cd、Cr6+、聚溴二苯醚和聚溴联苯等6种第一类污染物的排放标准有了更低的限制，欧盟于2006年7月1日起实施的《关于在电子电气设备中禁止使用某些有害物质指令》(ROHs)，禁止欧盟市场上投放的电子和电器设备中含六价铬等6种有害物质。为适应和满足市场的需要，近几年来，无铬钝化越来越成为研究的热点。
发明内容
本发明为了提高镀锌层钝化膜无毒环保，同时使钝化液中不含有Cr3+而发明了镀锌无铬蓝白色钝化剂。
本发明采用钼酸钠、柠檬酸钠、硝酸钴等物品组成镀锌无铬蓝白色钝化剂。
本发明的具体制备方法包括如下顺序的步骤：
a.将计算量的柠檬酸钠倒入少量水中，搅拌使其充分溶解；
b.将计算量的钼酸钠慢加入，搅拌使其充分溶解；
c.将计算量的硝酸钴缓慢加入，迅速搅拌，使其充分溶解；
d.将计算量的水定容后，静置10分钟，用硝酸调pH在1～2范围内。
本发明所得镀锌无铬蓝白色钝化剂，为澄清淡橘红色液体。
实验说明
本发明通过镀锌实验后，在无铬蓝白色钝化液中实施钝化处理，经过不同时间的处理后，观察镀层的色泽，并进行中性盐雾试验测定其耐蚀性能。
具体实施方式
本实施例的具体制备步骤如下：
a.配制通用的低氰镀锌溶液，并调整pH值，进行电镀。
b.一定时间后取出试样，在3％的硝酸中出光后进行钝化处理，钝化时间为8～20s。
c.观察转化膜层的色泽，并进行中性盐雾试验。
镀锌无铬蓝白色钝化剂工艺规范为：
注：当有搅拌时，钝化时间可以缩短。
Claims (1)
1.镀锌无铬蓝白色钝化剂，其特征在于钝化剂的原料组成如下：含钼酸钠40～60g/L、柠檬酸钠10～30g/L、硝酸钴10～25g/L，其余为水；无铬蓝白色钝化剂使用时pH值维持在1～2范围内。
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| CN103205740A true CN103205740A (zh) | 2013-07-17 |
| CN103205740B CN103205740B (zh) | 2015-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213111A (zh) * | 2014-08-26 | 2014-12-17 | 华南理工大学 | 一种用于制备Mo-Co复合转化膜的处理液及其应用 |
| CN105369235A (zh) * | 2015-12-17 | 2016-03-02 | 山东建筑大学 | 一种家具装饰方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740361B1 (en) * | 2002-08-29 | 2004-05-25 | Sanchem, Inc. | Passivating of zinc surfaces |
| JP3785548B2 (ja) * | 1998-06-01 | 2006-06-14 | ユケン工業株式会社 | ６価クロム・フッ素フリー化成処理剤 |
| CN101429661A (zh) * | 2008-12-05 | 2009-05-13 | 常熟华冶薄板有限公司 | 连续热浸镀锌钢板用的钼酸盐钝化液 |
| CN101717932A (zh) * | 2008-10-09 | 2010-06-02 | 贵州钢绳股份有限公司 | 镀锌层无铬钝化剂及其使用方法 |
| CN101886260A (zh) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | 一种复合膜无铬钝化剂 |
| CN102268664A (zh) * | 2011-07-28 | 2011-12-07 | 顺德职业技术学院 | 镀锌层黑色钝化处理用无铬钝化液及其制备方法 |
-
2013
- 2013-04-16 CN CN201310159141.3A patent/CN103205740B/zh active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3785548B2 (ja) * | 1998-06-01 | 2006-06-14 | ユケン工業株式会社 | ６価クロム・フッ素フリー化成処理剤 |
| US6740361B1 (en) * | 2002-08-29 | 2004-05-25 | Sanchem, Inc. | Passivating of zinc surfaces |
| CN101717932A (zh) * | 2008-10-09 | 2010-06-02 | 贵州钢绳股份有限公司 | 镀锌层无铬钝化剂及其使用方法 |
| CN101429661A (zh) * | 2008-12-05 | 2009-05-13 | 常熟华冶薄板有限公司 | 连续热浸镀锌钢板用的钼酸盐钝化液 |
| CN101886260A (zh) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | 一种复合膜无铬钝化剂 |
| CN102268664A (zh) * | 2011-07-28 | 2011-12-07 | 顺德职业技术学院 | 镀锌层黑色钝化处理用无铬钝化液及其制备方法 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213111A (zh) * | 2014-08-26 | 2014-12-17 | 华南理工大学 | 一种用于制备Mo-Co复合转化膜的处理液及其应用 |
| CN105369235A (zh) * | 2015-12-17 | 2016-03-02 | 山东建筑大学 | 一种家具装饰方法 |
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| Publication number | Publication date |
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| CN103205740B (zh) | 2015-04-29 |
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Effective date of registration: 20150226 Address after: Fengming road Licheng District 250101 Shandong city in Ji'nan Province, Shandong Jianzhu University Applicant after: Shi Jiazheng Address before: Fengming Road District of Ji'nan City, Shandong province 250101 port development Shandong Jianzhu University Applicant before: SHANDONG JIANZHU University |
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Effective date of registration: 20211209 Address after: 250000 middle section of Luming Road, Zhangjiawa sub district office, Laiwu District, Jinan City, Shandong Province Patentee after: SHANDONG JIUJIA FASTENER CO.,LTD. Address before: 250101 Feng Ming Road Shandong Jianzhu University, Licheng District, Ji'nan, Shandong Patentee before: Shi Jiazheng |
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Denomination of invention: Chromium free blue white passivation agent for zinc plating Effective date of registration: 20230526 Granted publication date: 20150429 Pledgee: Laiwu Branch of Bank of Communications Co.,Ltd. Pledgor: SHANDONG JIUJIA FASTENER CO.,LTD. Registration number: Y2023980041938 |