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三价铬电镀硬铬工艺的中试研究
Pilot Scale Production of Hard Chromium Coating from Cr（III） Bath
查看参考文献7篇
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文摘
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试验在200L氯化物体系三价铬镀液中进行，镀件为西50mm×100mm的钢管或铜管。在不同的温度和pH值下施镀来确定最佳工艺范围。利用称重法测量镀层的厚度，并计算镀速和电流效率。在200mL镀液中进行加速试验，以研究镀液的分析调整方法，并测试镀液的寿命。通过维氏显微硬度仪测试镀层的硬度与热处理温度的关系，并在扫描电子显微镜下观察镀层的形貌。在SRV摩擦试验机上对比三价铬镀层和六价铬镀层的摩擦学性能。结果表明：与六价铬电镀工艺相比，三价铬电镀工艺具有低毒性、常温施镀、电流效率高、生产效率高、镀层性能好等优点，但其调整维护相对频繁、复杂。 |
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其他语种文摘
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The pilot scale production of Cr coatings is carried out in the 200 L Cr（Ⅲ） bath. The substrates are steel or copper tubes of Ф 50 mm×100 mm. The coating thickness is measured with weight method, and the plating rate and current efficiency are also calculated. Acceleration test is performed in 200 mL bath to investigate bath analyzing and adjusting methods and test bath life. The relation between coating hardness and temperaure of heat treatment is tested with Vicker microhardness tester, and the coating morphology is observed under SEM. The abrasion properties of Cr（Ⅲ） and Cr（ Ⅵ） coatings are compared on SRV abrasion tester. The results show that compared with Cr（ Ⅵ ） coating, Cr（Ⅲ） plating possesses many advantages, such as high efficiency, high throwing power, high covering power, low toxicity. However, maintenance of the bath is complex and frequent. |
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来源
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电镀与环保
,2008,28(2):17-20 【扩展库】
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关键词
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三价铬
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硬铬
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中试
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工业化推广
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地址
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中国科学院兰州化学物理研究所, 固体润滑国家重点实验室, 甘肃, 兰州, 730000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4742 |
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学科
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化学工业 |
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文献收藏号
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CSCD:3260222
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参考文献 共
7
共1页
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1.
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Surface&Coatings Technology,2006,201:2282-2288
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被引
7
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2.
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Electrocbimica Acta,2006,52:1366-1372
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被引
10
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3.
Zeng Zhixiang. Fabrication of a nanocrystalline Cr-C layer with excellent antiwear performance.
Materials Letters,2007,4:4107-4109
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被引
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4.
Zeng Zhixiang. Tribological behaviors of amorphousCr coatings electrodepusited from Cr(Ⅲ)bath under ionic liquid lubrication.
Electrochemical and Solid State Letters,2007(10):85-88
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被引
1
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5.
曾志翔. 三价铬电镀硬铬及镀层性能的研究.
电镀与环保,2006,26(4):11-13
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被引
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6.
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被引
3
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7.
Safonov V A. Valence-to-core x-ray emission spectroscopy identification of carbide compounds in nanoerystalline Cr coatings deposited from Cr(Ⅲ)electrolytes containing organic substances.
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被引
1
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