CN110983281A - 一种用于缝纫机针杆表面处理的碳基纳米复合涂层及其制备方法和应用该制备方法的产品 - Google Patents
一种用于缝纫机针杆表面处理的碳基纳米复合涂层及其制备方法和应用该制备方法的产品 Download PDFInfo
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Abstract
本发明公开了一种用于缝纫机针杆表面处理的碳基纳米复合涂层及其制备方法和应用该制备方法的产品,该碳基纳米复合涂层包括从内至外依次涂布于一针杆基体表面形成的:一Nb打底涂层、一NbMoC渐变涂层和一掺杂镍的碳基纳米涂层。本发明碳基纳米复合涂层具有摩擦系数低、自润滑性好的优点,使用本发明碳基纳米复合涂层制备方法制得的碳基纳米复合涂层应用于缝纫机针杆表面处理时,可很好地改善针杆的润滑性能,从而提高缝纫机针杆的运行寿命,降低生产成本,提高生产力。
Description
技术领域
本发明具体涉及一种用于缝纫机针杆表面处理的碳基纳米复合涂层及其制备方法和应用该制备方法的产品。
背景技术
缝纫机的针杆机构是缝纫机各大机构中至关重要的一部分,缝纫机的针杆在高速运动过程中会发生摩擦和磨损,因此需要足够润滑油来对其进行润滑,目前的方法是在缝纫机底部设置油盘,油盘里存储流动的液态润滑油,再通过油泵向针杆部位供应润滑油。但是这种结构中润滑油的供给量很难精确控制,如果润滑油过少,起不到应有的润滑和降温效果;如果润滑油过多,则会导致多余的润滑油随着针杆运动而向外漏出,进而污染缝线和缝料。
发明内容
本发明的目的,就是为了解决上述问题而提供了一种用于缝纫机针杆表面处理的碳基纳米复合涂层及其制备方法和应用该制备方法的产品,该碳基纳米复合涂层具有摩擦系数低、自润滑性好、无润滑油污染、针杆使用寿命长,能降低生产成本,提高生产力。
本发明的目的是这样实现的:
本发明的一种用于缝纫机针杆表面处理的碳基纳米复合涂层包括从内至外依次涂布于一针杆基体表面形成的:一Nb打底涂层、一NbMoC渐变涂层和一掺杂镍的碳基纳米涂层。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层中掺杂镍的碳基纳米涂层的外观呈黑色。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层中掺杂镍的碳基纳米复合涂层表面的维氏硬度HV3000~3500以上,其膜基结合力50~60N,其厚度为1~2μm,摩擦系数为0.04~0.05。
本发明还提供一种用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其包括以下步骤:
S1:在一镀膜设备的真空室中放置一个针杆基体、三个金属靶和一个碳源靶;
S2:对针杆基体的表面制备一Nb打底涂层;
S3:在Nb打底涂层上制备一NbMoC渐变涂层;
S4:在NbMoC渐变涂层上制备掺杂镍的碳基纳米涂层。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法中针杆基体安装于一工件架上,金属靶与碳源靶分别与工件架为相对放置,且金属靶、工件架与碳源靶均匀间隔90°放置;
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法中工件架可同时进行公转和自转,其公转和自转的转动速度均为5~7r/min。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法中步骤S2包括以下实现方法:
保持真空室的压强为1.0~1.3Pa,控制氩气的气流量保持10~20sccm,开启金属Nb靶,调节金属Nb靶的靶电流为80~90A,基体偏压为-120~-180V,沉积时间为12~20min,于针杆基体1上形成Nb打底涂层。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法中步骤S3包括以下实现方法:
将真空室的压强调节至0.15~0.20Pa,控制氩气的气流量保持15~20sccm;
第一时间段,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,开启金属Mo靶并调节金属Mo靶的靶电流为80~90A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间5min;
第二时间段内,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,将金属Mo靶的靶电流保持为50~80A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间15min。
上述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法中步骤S4包括以下实现方法:
关闭金属Nb靶和金属Mo靶,打开金属Ni靶并调节靶电流为120~140A,将真空室的压强调节至0.20~0.30Pa,调节针杆基体1偏压至-75~-100V;
第一时间段内,控制乙炔的气流量保持30~40sccm,该过程持续时间约10-13min;
第二时间段内,控制乙炔的气流量保持130~145sccm,该过程持续时间约35-45min。
本发明还提供应用用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法的碳基纳米复合涂层产品。
本发明碳基纳米复合涂层具有摩擦系数低、自润滑性好的优点,使用本发明碳基纳米复合涂层制备方法制得的碳基纳米复合涂层应用于缝纫机针杆表面处理时,可很好地改善针杆的润滑性能,从而提高缝纫机针杆的运行寿命,降低生产成本,提高生产力。
附图说明
图1是本发明的用于缝纫机针杆表面处理的碳基纳米复合涂层结构示意图。
具体实施方式
下面将结合附图,对本发明作进一步说明。
请参阅图1,图中示出了本发明的用于缝纫机针杆表面处理的碳基纳米复合涂层结构,该碳基纳米复合涂层包括从内至外依次涂布于一针杆基体1表面形成的:一Nb打底涂层2、一NbMoC渐变涂层3和一掺杂镍的碳基纳米涂层4。
掺杂镍的碳基纳米涂层4的外观呈黑色;
碳基纳米复合涂层表面的维氏硬度HV3000以上,其膜基结合力大于50N,其厚度为1~2μm,摩擦系数为0.05;
本发明还提供一种用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,包括以下步骤:
S1:在一镀膜设备的真空室中放置一个针杆基体1、三个金属靶和一个碳源靶;
S2:对针杆基体1的表面制备一Nb打底涂层2;
S3:在Nb打底涂层2上制备一NbMoC渐变涂层3;
S4:在NbMoC渐变涂层3上制备掺杂镍的碳基纳米涂层4。
针杆基体1安装于一工件架上,金属靶与碳源靶分别与工件架为相对放置,且金属靶、工件架与碳源靶均匀间隔90°放置;该工件架可同时进行公转和自转,其公转和自转的转动速度均为5~7r/min。
步骤S2包括:保持真空室的压强为1.0~1.3Pa,控制氩气的气流量保持10~20sccm,开启金属Nb靶,调节金属Nb靶的靶电流为80~90A,基体偏压为-120~-180V,沉积时间为12~20min,于针杆基体1上形成Nb打底涂层2;
步骤S3包括:完成步骤S2后,将真空室的压强调节至0.15~0.20Pa,控制氩气的气流量保持15~20sccm;
第一时间段,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,开启金属Mo靶并调节金属Mo靶的靶电流为80~90A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间5min;
第二时间段内,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,将金属Mo靶的靶电流保持为50~80A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间15min;
步骤S4包括:关闭金属Nb靶和金属Mo靶,打开金属Ni靶并调节靶电流为120~140A,将真空室的压强调节至0.20~0.30Pa,调节针杆基体1偏压至-75~-100V;
第一时间段内,控制乙炔的气流量保持30~40sccm,该过程持续时间约10-13min;
第二时间段内,控制乙炔的气流量保持130~145sccm,该过程持续时间约35-45min。
实施例:
本本实施例的碳基纳米复合涂层制备过程如下:
1)针杆基体1采用缝纫机针杆(碳钢,硬度32HRC)以及硬度为32HRC的碳钢试块作为样品,浸入超声波预清洗,在含有酒精和丙醇的碱性清洗液及超声波共同作用下保证清洗效果,保证针杆基体1清洗完烘干后表面光亮、无痕迹,否则会影响涂层与工件的结合。
2)针杆基体1和试块预处理并烘干后放入电弧离子镀复合镀膜设备;本镀膜设备包括真空室、工件架、抽真空***、高纯气体供应***、Nb靶、石墨靶、脉冲电源、离子电源等组成,工件架可同时进行公转和自转,保证缝纫机针杆所需镀膜表面得到均匀的离子沉积。
3)以真空室相对Nb靶作为金属靶,靶尺寸为500mm×50mm×10mm,以真空室相对Mo靶作为金属靶,靶尺寸为500mm×50mm×10mm,以真空室相对Ni靶作为金属靶,靶尺寸为500mm×50mm×10mm,以真空室相对石墨靶作为非金属靶,靶尺寸为500mm×50mm×10mm,间隔一定角度放置在镀膜设备真空炉的内壁上,采用高纯氩气作为主要离化气体,在针杆基体1表面形成Nb/NbMoC/掺杂镍的碳基纳米复合涂层。
4)碳基纳米复合涂层制备:
a.Nb打底涂层2制备:真空室的压强为1.1Pa,氩气的气流量保持12sccm,开启Nb靶,调节靶电流为85A,基体偏压为-150V,沉积时间为16min,于针杆基体1上形成Nb打底涂层2;
b.NbMoC渐变涂层3制备:Nb打底涂层2制备完成后,将Ar气流量保持18sccm,第一时间段内,调节针杆基体1偏压至-90V,将Nb靶的靶电流保持为95A,将Mo靶的靶电流保持为70A,开启碳源靶,调节碳源靶的靶电流为115A,该过程持续时间5min;第二时间段内,调节针杆基体1偏压至-85V,将Nb靶的靶电流保持为90A,将Mo靶的靶电流保持为75A,开启碳源靶,调节碳源靶的靶电流为120A,该过程持续时间15min;
c.掺杂镍的碳基纳米涂层制备:NbMoC渐变涂层3制备完成后,关闭Nb、Mo靶,打开Ni靶,调节碳源靶的靶电流为130A,将真空室的压强调节至0.24Pa,调节针杆基体1偏压至-75V,第一时间段内,控制乙炔的气流量保持30~40sccm,该过程持续时间约10-13min;第二时间段内,控制乙炔的气流量保持130~145sccm,该过程持续时间约35-45min。
本实施例制备的碳基纳米复合涂层外观呈黑色,表面光滑,表面维氏硬度高达3000HV,膜基结合力>50N,涂层厚度根据使用场所不同分为1~2μm,摩擦副为AI2O3球时摩擦系数0.05。
以上实施例仅供说明本发明之用,而非对本发明的限制,有关技术领域的技术人员,在不脱离本发明的精神和范围的情况下,还可以作出各种变换或变型,因此所有等同的技术方案也应该属于本发明的范畴,应由各权利要求所限定。
Claims (10)
1.一种用于缝纫机针杆表面处理的碳基纳米复合涂层,其特征在于,所述碳基纳米复合涂层包括从内至外依次涂布于一针杆基体表面形成的:一Nb打底涂层、一NbMoC渐变涂层和一掺杂镍的碳基纳米涂层。
2.如权利要求1所述的用于缝纫机针杆表面处理的碳基纳米复合涂层,其特征在于,所述掺杂镍的碳基纳米涂层的外观呈黑色。
3.如权利要求1所述的用于缝纫机针杆表面处理的碳基纳米复合涂层,其特征在于,所述碳基纳米复合涂层表面的维氏硬度HV3000~3500以上,其膜基结合力50~60N,其厚度为1~2μm,摩擦系数为0.04~0.05。
4.如权利要求1所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,包括以下步骤:
S1:在一镀膜设备的真空室中放置一个针杆基体、三个金属靶和一个碳源靶;
S2:对针杆基体的表面制备一Nb打底涂层;
S3:在Nb打底涂层上制备一NbMoC渐变涂层;
S4:在NbMoC渐变涂层上制备掺杂镍的碳基纳米涂层。
5.如权利要求4所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,所述针杆基体安装于一工件架上,所述金属靶与所述碳源靶分别与所述工件架相对放置,且所述金属靶、工件架与碳源靶均匀间隔90°放置。
6.如权利要求4所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,所述工件架可同时进行公转和自转,其公转和自转的转动速度均为5~7r/min。
7.如权利要求4所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,步骤S2包括以下实现方法:
保持真空室的压强为1.0~1.3Pa,控制所述氩气的气流量保持10~20sccm,开启金属Nb靶,调节金属Nb靶的靶电流为80~90A,基体偏压为-120~-180V,沉积时间为12~20min,于针杆基体1上形成Nb打底涂层。
8.如权利要求4所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,所述步骤S3包括以下实现方法:
将真空室的压强调节至0.15~0.20Pa,控制氩气的气流量保持15~20sccm;
第一时间段,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,开启金属Mo靶并调节金属Mo靶的靶电流为80~90A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间5min;
第二时间段内,调节针杆基体1偏压至-75~-100V,将金属Nb靶的靶电流保持为85~100A,将金属Mo靶的靶电流保持为50~80A,开启碳源靶并调节碳源靶的靶电流为100~150A,该过程持续时间15min。
9.如权利要求4所述的用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法,其特征在于,所述步骤S4包括以下实现方法:
关闭金属Nb靶和金属Mo靶,打开金属Ni靶并调节靶电流为120~140A,将真空室的压强调节至0.20~0.30Pa,调节针杆基体1偏压至-75~-100V;
第一时间段内,控制乙炔的气流量保持30~40sccm,该过程持续时间约10-13min;
第二时间段内,控制乙炔的气流量保持130~145sccm,该过程持续时间约35-45min。
10.如权利要求4~9所述的任一种应用所述用于缝纫机针杆表面处理的碳基纳米复合涂层的制备方法的碳基纳米复合涂层产品。
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CN104204276A (zh) * | 2012-03-19 | 2014-12-10 | 西铁城控股株式会社 | 具有白色硬质覆膜层的硬质装饰构件及其制造方法 |
CN109972101A (zh) * | 2017-12-28 | 2019-07-05 | 核工业西南物理研究院 | 一种低掺杂金属纳米类金刚石涂层的制备方法 |
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CN104204276A (zh) * | 2012-03-19 | 2014-12-10 | 西铁城控股株式会社 | 具有白色硬质覆膜层的硬质装饰构件及其制造方法 |
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