铜工艺品表面青绿热着色新工艺  

Novel process for bluish-green heat coloring on copper handicrafts

作　　者：陈茜 张道权 朱军岷 CHEN Xi;ZHANG Daoquan;ZHU Junmin(Hangzhou Zhu Bingren Copper Art Co.,Ltd.,Hangzhou 311100,China)

机构地区：[1]杭州朱炳仁铜艺股份有限公司,浙江杭州311100

出　　处：《电镀与涂饰》2024年第10期86-91,共6页Electroplating & Finishing

摘　　要：[目的]针对铜工艺品表面传统火焰热着色工艺存在的操作技术要求高、着色温度高等缺点,开发了一种低温热着色工艺。[方法]以硝酸盐为主要着色配方体系,辅以乙二醇等助溶剂与适当的无机颜料,采用热风枪代替火焰喷枪进行着色。[结果]较佳的化学着色配方和热着色工艺参数为:五水合硝酸铋12~20 g/L,三水合硝酸铜0~2 g/L,五水合硫酸铜0~3 g/L,六水合硫酸镍0~5 g/L,10%硝酸0~20 mL/L,乙二醇20~50 mL/L,无机颜料20~50 g/L,着色温度65~120℃。[结论]该工艺操作简便,安全性高,制得的着色氧化膜具有良好的力学性能,颜色鲜艳。[Introduction]A low-temperature process for heat coloring of copper crafts was developed to overcome the shortcomings such as difficult operation and high temperature of traditional flame heating process.[Method]Nitrates were used as the main coloring agent,in combination with ethylene glycol as a co-solvent and some appropriate inorganic pigments.The heating process was operation by using a heat gun instead of a flame spray gun.[Result]The optimal composition of the chemical coloring solution are as follows:Bi(NO_(3))_(3)·5H_(2)O 12-20 g/L,Cu(NO_(3))_(2)·3H_(2)O 0-2 g/L,CuSO_(4)·5H_(2)O 0-3 g/L,NiSO_(4)·6H_(2)O 0-5 g/L,10%nitric acid 0-20 mL/L,ethylene glycol 20-50 mL/L,and inorganic pigments 20-50 g/L.The suitable coloring temperature ranges from 65 to 120℃.[Conclusion]This process is easy to operate with high safety,and can produce oxide films of good mechanical properties and vibrant colors.

关 键 词：铜及铜合金 氧化膜 着色 青绿色 热风枪 

分 类 号：TG174.446[金属学及工艺—金属表面处理] TG177[金属学及工艺—金属学]