CN109666903B - 一种锅具把手表面隔热涂层及其制备方法 - Google Patents

一种锅具把手表面隔热涂层及其制备方法 Download PDF

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CN109666903B
CN109666903B CN201710953443.6A CN201710953443A CN109666903B CN 109666903 B CN109666903 B CN 109666903B CN 201710953443 A CN201710953443 A CN 201710953443A CN 109666903 B CN109666903 B CN 109666903B
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赵彦辉
徐丽
刘占奇
肖金泉
于宝海
欧剑华
刘炳耀
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Guangdong Master Group Co ltd
Institute of Metal Research of CAS
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract

本发明属于金属材料表面沉积隔热涂层技术领域,具体涉及一种锅具把手表面的氧化铝/氧化硅复合隔热涂层及其制备方法。在锅具把手表面依次沉积AlSi膜形成的过渡层及Al2O3/SiO2复合涂层,Al2O3/SiO2复合涂层的厚度为1~50微米。本发明采用磁场增强电弧离子镀技术完成,该方法制备的隔热涂层除具有较好的隔热性能外,还具有硬度高、抗刮擦等优点,适用于餐厨具部件隔热、机械零部件隔热等领域。

Description

一种锅具把手表面隔热涂层及其制备方法
技术领域:
本发明属于金属材料表面沉积隔热涂层技术领域,具体涉及一种锅具把手表面的氧化铝/氧化硅复合隔热涂层及其制备方法。
背景技术:
锅具在人们的日常生活中应用越来越广泛,人们不仅用它来烹制食物,也用它来加热牛奶等饮品等。目前,市场上的锅具大多选用不锈钢作为基体,锅把手处一般增加一层塑料,以防止在使用过程中,手由于接触锅把手而被烫伤。但是采用塑料来隔热并不能起到较好的结果,这是由于普通塑料的隔热效果有限,而且塑料的耐热温度较低。
因此,有必要寻求更加有效的材料或方法,来作为锅把手材料来增加隔热效果,以满足锅具的正常使用要求。
发明内容
针对现有锅具把手塑料隔热材料的不足,本发明的目的是提供一种锅具把手表面隔热涂层及其制备方法。
为了实现上述目的,本发明的技术方案为:
一种锅具把手表面隔热涂层,在锅具把手表面依次沉积AlSi膜形成的过渡层及Al2O3/SiO2复合涂层,Al2O3/SiO2复合涂层的厚度为1~50微米(优选为20~30微米)。
所述的锅具把手表面隔热涂层,AlSi膜形成的过渡层厚度为0.1~5微米(优选为0.5~3微米)。
所述的锅具把手表面隔热涂层,AlSi膜形成的过渡层中,Al的含量为20~90at.%(优选为50~80at.%)。
所述的锅具把手表面隔热涂层,Al2O3/SiO2复合涂层中Al2O3的含量为20~90at.%(优选为50~80at.%)。
所述的锅具把手表面隔热涂层的制备方法,具体步骤如下:
(1)锅具把手表面预清洗:锅具把手放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;
(2)镀过渡层:将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到5×10-4Pa~1×10-2Pa(优选为1×10-3Pa~9×10-3Pa)时,对真空室加热至300~650℃(优选为350~500℃);向真空室通入氩气,气压控制在0.5~4Pa(优选为1.0~2.0Pa)之间;基体加脉冲负偏压在-500~-1000V范围(优选为-600~-800V),使气体发生辉光放电,对样品进行辉光清洗5~30分钟;调整氩气流量,使真空室气压为0.01~3.0Pa(优选为0.05~0.5Pa,同时开启铝硅合金靶弧源,弧电流为40~100A(优选为40~60A),对锅具把手继续进行离子轰击1~10分钟;调整氩气流量,使真空室气压进一步降低为0.01~2.0Pa(优选为0.05~0.5Pa,调脉冲负偏压至-50V~-500V(优选为-50~-200V),沉积AlSi膜即过渡层1~30分钟;
(3)镀Al2O3/SiO2复合涂层:采用铝硅合金靶,沉积总气压控制在0.01~2Pa范围(优选为0.1~0.5Pa),氧气与氩气流量比为1~5:1;对基体施加脉冲负偏压-50V~-600V(优选为-60V~-200V),占空比为20~80%(优选为30~60%),调节铝硅合金靶电流为40~100A(优选为40~60A);开启靶材后部的电磁场装置,磁场线圈电流调整为0.1~5A(优选为0.5~2A),沉积时间为20~300分钟(优选为30~120分钟);
(4)沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手。
与现有技术相比,本发明的有益效果是:
1、本发明是在锅具把手表面制备AlSi膜形成的过渡层和Al2O3/SiO2复合涂层构成的隔热涂层,该隔热涂层不仅耐刮擦,而且具有良好的隔热效果。
2、本发明采用磁场增强电弧离子镀技术完成,该方法采用电磁线圈产生轴向磁场,该磁场不仅使得弧斑运动速度加快,靶材表面大颗粒喷射减少,而且该磁场还可对电弧放电产生的等离子体进行聚焦,使得离子能量及密度大幅度提高,大大提高了涂层沉积效率。该方法制备的隔热涂层除具有较好的耐刮擦性能外,还具有硬度高、隔热效果好等优点。
具体实施方式:
在具体实施过程中,本发明锅具把手表面隔热涂层,它包括锅具把手(如:不锈钢把手、铝合金把手等),在锅具把手表面依次是铝硅(以下称AlSi)膜形成的过渡层及Al2O3/SiO2复合涂层。
下面,通过实施例对本发明进一步详细阐述。
实施例1
本实施例中,锅具把手选用304不锈钢,锅具把手表面经研磨抛光后,放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到6×10-3Pa时,对真空室加热至350℃;向真空室通入氩气,气压控制在2.0Pa;基体加脉冲负偏压在-700V,使气体发生辉光放电,对样品进行辉光清洗15分钟;调整氩气流量,使真空室气压为0.5Pa(调整氩气流量的作用是:使得合金靶放电平稳,等离子体密度适中),同时开启铝硅合金靶弧源,弧电流为50A,对锅具把手继续进行离子轰击6分钟;调整氩气流量,使真空室气压为0.2Pa(进一步降低氩气流量的作用是:降低离子的空间自由程,提升离子能量,促进薄膜结构的结晶性),调脉冲负偏压至-200V,占空比为40%,沉积AlSi膜即过渡层15分钟,AlSi膜形成的过渡层厚度为0.6微米,Al的含量为85at.%;之后通入氧气,氧气与氩气流量比为2:1,沉积总气压控制在0.3Pa;对基体施加脉冲负偏压-100V,占空比为60%,调节铝硅合金靶电流为60A;开启靶材后部的电磁场装置,磁场线圈电流调整为1.0A,沉积时间为120分钟;沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手,镀膜过程。
所得Al2O3/SiO2复合涂层锅具把手外观为紫黑色,扫描电镜测试涂层的总厚度为16.1微米,Al2O3/SiO2复合涂层中Al2O3的含量为68at.%,其隔热效果测试为良好。
实施例2
本实施例中,锅具把手选用304不锈钢,锅具把手表面经研磨抛光后,放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到7×10-3Pa时,对真空室加热至380℃;向真空室通入氩气,气压调整为2.0Pa;基体加脉冲负偏压在-700V,使气体发生辉光放电,对样品进行辉光清洗25分钟;调整氩气流量,使真空室气压为0.3Pa,同时开启铝硅合金靶弧源,弧电流为55A,对锅具把手继续进行离子轰击10分钟;调整氩气流量,使真空室气压为0.3Pa,调脉冲负偏压至-150V,占空比为40%,沉积AlSi膜即过渡层10分钟,AlSi膜形成的过渡层厚度为0.4微米,Al的含量为86at.%;之后通入氧气,氧气与氩气流量比为3:1,沉积总气压控制在0.4Pa;对基体施加脉冲负偏压-120V,占空比为60%,调节铝硅合金靶电流为65A;开启靶材后部的电磁场装置,磁场线圈电流调整为2.5A;沉积时间为150分钟;沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手,镀膜过程结束。
所得Al2O3/SiO2复合涂层锅具把手外观为紫黑色,扫描电镜测试涂层的总厚度为20.6微米,Al2O3/SiO2复合涂层中Al2O3的含量为77at.%,其隔热效果测试为良好。
实施例3
本实施例中,锅具把手选用430不锈钢,锅具把手表面经研磨抛光后,放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到5×10-3Pa时,对真空室加热至480℃;向真空室通入氩气,气压调整为2.1Pa;基体加脉冲负偏压在-600V,使气体发生辉光放电,对样品进行辉光清洗25分钟;调整氩气流量,使真空室气压为0.6Pa,同时开启铝硅合金靶弧源,弧电流为55A,对锅具把手继续进行离子轰击10分钟;调整氩气流量,使真空室气压为0.4Pa,调脉冲负偏压至-90V,占空比为40%,沉积AlSi膜即过渡层10分钟,AlSi膜形成的过渡层厚度为0.4微米,Al的含量为70at.%;之后通入氧气,氧气与氩气流量比为1:1,沉积总气压控制在0.6Pa;对基体施加脉冲负偏压-120V,占空比为40%,调节铝硅合金靶电流为65A;开启靶材后部的电磁场装置,磁场线圈电流调整为1.5A;沉积时间为180分钟;沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手,镀膜过程结束。
所得Al2O3/SiO2复合涂层锅具把手外观为紫黑色,扫描电镜测试涂层的总厚度为28.6微米,Al2O3/SiO2复合涂层中Al2O3的含量为60at.%,其隔热效果测试为良好。
实施例4
本实施例中,锅具把手选用304不锈钢,锅具把手表面经研磨抛光后,放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到6×10-3Pa时,对真空室加热至450℃;向真空室通入氩气,气压调整为2.0Pa;基体加脉冲负偏压在-700V,使气体发生辉光放电,对样品进行辉光清洗26分钟;调整氩气流量,使真空室气压为0.35Pa,同时开启铝硅合金靶弧源,弧电流为65A,对锅具把手继续进行离子轰击8分钟;调整氩气流量,使真空室气压为0.2Pa,调脉冲负偏压至-110V,占空比为50%,沉积AlSi膜即过渡层6分钟,AlSi膜形成的过渡层厚度为0.1微米,Al的含量为75at.%;之后通入氧气,氧气与氩气流量比为2:1,沉积总气压控制在0.8Pa;对基体施加脉冲负偏压-120V,占空比为65%,调节铝硅合金靶电流为70A;开启靶材后部的电磁场装置,磁场线圈电流调整为1.5A;沉积时间为120分钟;沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手,镀膜过程结束。
所得Al2O3/SiO2复合涂层锅具把手外观为紫黑色,扫描电镜测试涂层的总厚度为15.4微米,Al2O3/SiO2复合涂层中Al2O3的含量为65at.%,其隔热效果测试为良好。
实施例结果表明,本发明采用磁场增强电弧离子镀技术完成,该方法制备的隔热涂层除具有较好的隔热性能外,还具有硬度高、抗刮擦等优点,适用于餐厨具部件隔热、机械零部件隔热等领域。

Claims (4)

1.一种锅具把手表面隔热涂层的制备方法,其特征在于,在锅具把手表面依次沉积AlSi膜形成的过渡层及Al2O3/SiO2复合涂层,Al2O3/SiO2复合涂层的厚度为1~50微米;
所述的锅具把手表面隔热涂层的制备方法,具体步骤如下:
(1)锅具把手表面预清洗:锅具把手放置于喷砂机内进行喷砂处理,然后进行除油处理,再超声清洗、烘干;
(2)镀过渡层:将烘干后的锅具把手置于电弧离子镀膜机内,采用铝硅合金靶,当真空室内真空度达到5×10-4Pa~1×10-2Pa时,对真空室加热至300~650℃;向真空室通入氩气,气压控制在0.5~4.0Pa之间;基体加脉冲负偏压在-500~-1000V范围,使气体发生辉光放电,对样品进行辉光清洗5~30分钟;调整氩气流量,使真空室气压为0.01~3.0Pa,同时开启铝硅合金靶弧源,弧电流为40~100A,对锅具把手继续进行离子轰击1~10分钟;调整氩气流量,使真空室气压为0.01~2.0Pa,调脉冲负偏压至-50V~-500V,沉积AlSi膜即过渡层1~30分钟;
(3)镀Al2O3/SiO2复合涂层:采用铝硅合金靶,沉积总气压控制在0.01~2Pa范围,氧气与氩气流量比为1~5:1;对基体施加脉冲负偏压-50V~-600V,占空比为20~80%,调节铝硅合金靶电流为40~100A;开启靶材后部的电磁场装置,磁场线圈电流调整为0.1~5A,沉积时间为20~300分钟;
(4)沉积结束后,停弧、停基体脉冲负偏压、停止通入气体、关闭电磁场装置,继续抽真空,锅具把手随炉冷却至80℃以下,打开真空室,取出锅具把手。
2.按照权利要求1所述的锅具把手表面隔热涂层的制备方法,其特征在于,AlSi膜形成的过渡层厚度为0.1~5微米。
3.按照权利要求1所述的锅具把手表面隔热涂层的制备方法,其特征在于,AlSi膜形成的过渡层中,Al的含量为20~90at.%。
4.按照权利要求1所述的锅具把手表面隔热涂层的制备方法,其特征在于,Al2O3/SiO2复合涂层中Al2O3的含量为20~90at.%。
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