The invention relates to a method of vacuum coating of copper, chromium and zinc gold film coating, including step 1) drawing or polishing the surface of the workpiece, removing the surface oxidation layer; 2) cleaning the workpiece by ultrasonic cleaning, removing the surface oil and polishing wax; 3) the workpiece after the cleaning is evacuated to the vacuum furnace, and the ion glow activation 10 20min is carried out. After completion, the argon gas mass flowmeter, the bias voltage source and the throttle valve are pumped into the vacuum, the bias voltage is set, the chromium arc target current is set and the ion bombardment is 60 100A, and the ion bombardment is 1, and the throttle valve is closed by adjusting the bias and duty ratio, and the arc deposition is 1 5min, and the arc chromium metal film is formed on the surface of the workpiece. A medium frequency magnetic chromium target was deposited on the medium frequency 3 8min to form a medium frequency chromium metal film on the surface of the workpiece; then the medium frequency magnetic controlled brass target was opened, the face deposition was 10, and the copper chrome zinc alloy coating was formed on the surface of the workpiece; 4) the organic coating was sprayed.
【技术实现步骤摘要】
一种铜铬锌金色膜层真空镀膜方法
本专利技术涉及一种铜铬锌金色膜层真空镀膜方法。
技术介绍
在电镀膜层中,电镀镍不仅具有较好的耐腐蚀性能,并且因具有浅金色的外观而常常被用于装饰件产品上。但是电镀镍膜层表面在空气中容易发生氧化变色,所以需在表面喷涂透明涂料或进行钝化处理才能保持原有色泽。而传统电镀业由于水污染较大受到越来越严格的环保制约。目前通常采用真空镀膜取代电镀镍外观,采用电弧沉积氮化锆膜层(L值:75-79),但氮化锆膜层始终无法达到电镀镍的亮度(L值:80-83),特别对于是喷涂透明涂料后表面亮度下降明显。
技术实现思路
本专利技术所要解决的技术问题是针对现有技术的现状提供一种符合环保要求、工艺稳定、且亮度高、颜色均匀的铜铬锌金色膜层真空镀膜方法。本专利技术解决上述技术问题所采用的技术方案为:该铜铬锌金色膜层真空镀膜方法,其特征在于包括下述步骤:1)将工件表面拉丝或抛光处理,祛除表面氧化层;2)将工件进行超声波清洗,祛除表面油污、抛光蜡;3)将清洗后的工件转入真空炉内抽真空,本底真空度达到6.0×10-3-1.0×10-2Pa后,关闭节流阀,开始通入300-400sccm的氩气,打开偏压设定为500-800V,占空比50%-80%,进行离子辉光活化10-20min;完成后关闭氩气质量流量计、偏压电源、打开节流阀抽真空使真空达到3.0×10-3-6.0×10-3Pa,通入50-100sccm的氩气,使真空达到5.0×10-2-1.0×10-1Pa,打开偏压设定为200-400V,占空比50%-80%,设定铬弧靶电流60-100A,进行离子轰击1-4min;然 ...
【技术保护点】
1.一种铜铬锌金色膜层真空镀膜方法,其特征在于包括下述步骤:1)将工件表面拉丝或抛光处理,祛除表面氧化层;2)将工件进行超声波清洗,祛除表面油污、抛光蜡;3)将清洗后的工件转入真空炉内抽真空,本底真空度达到6.0×10‑3‑1.0×10‑2Pa后,关闭节流阀,开始通入300‑400sccm的氩气,打开偏压设定为500‑800V,占空比50%‑80%,进行离子辉光活化10‑20min;完成后关闭氩气质量流量计、偏压电源、打开节流阀抽真空使真空达到3.0×10‑3‑6.0×10‑3Pa,通入50‑100sccm的氩气,使真空达到5.0×10‑2‑1.0×10‑1Pa,打开偏压设定为200‑400V,占空比50%‑80%,设定铬弧靶电流60‑100A,进行离子轰击1‑4min;然后调节偏压降至100‑150V,占空比50%‑80%,关闭节流阀,进行电弧沉积1‑5min,在工件表面形成电弧铬金属膜层;将氩气调至100‑150sccm,打开中频磁控铬靶,铬靶设定15‑25A,进行共沉积打底1‑3min的铬金属膜层;然后关闭弧靶电源,进行中频磁控铬靶沉积打底3‑8min,在工件表面形成中频铬金属膜 ...
【技术特征摘要】
1.一种铜铬锌金色膜层真空镀膜方法,其特征在于包括下述步骤:1)将工件表面拉丝或抛光处理,祛除表面氧化层;2)将工件进行超声波清洗,祛除表面油污、抛光蜡;3)将清洗后的工件转入真空炉内抽真空,本底真空度达到6.0×10-3-1.0×10-2Pa后,关闭节流阀,开始通入300-400sccm的氩气,打开偏压设定为500-800V,占空比50%-80%,进行离子辉光活化10-20min;完成后关闭氩气质量流量计、偏压电源、打开节流阀抽真空使真空达到3.0×10-3-6.0×10-3Pa,通入50-100sccm的氩气,使真空达到5.0×10-2-1.0×10-1Pa,打开偏压设定为200-400V,占空比50%-80%,设定铬弧靶电流60-100A,进行离子轰击1-4min;然后调节偏压降至100-150V,占空比50%-...
【专利技术属性】
技术研发人员:薛颜同,凌祥元,裘见如,吴国海,
申请(专利权)人:宁波威霖住宅设施有限公司,
类型:发明
国别省市:浙江,33
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。