CN109596537A - 一种涂装检验流程 - Google Patents

一种涂装检验流程 Download PDF

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CN109596537A
CN109596537A CN201811650508.0A CN201811650508A CN109596537A CN 109596537 A CN109596537 A CN 109596537A CN 201811650508 A CN201811650508 A CN 201811650508A CN 109596537 A CN109596537 A CN 109596537A
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胡翔
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HEFEI GAOCO TECHNOLOGY Co Ltd
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    • G01B7/06Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/105Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
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    • G01N19/04Measuring adhesive force between materials, e.g. of sealing tape, of coating
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    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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    • GPHYSICS
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    • G01N2203/0005Repeated or cyclic
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    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0032Generation of the force using mechanical means
    • G01N2203/0039Hammer or pendulum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0076Hardness, compressibility or resistance to crushing

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Abstract

一种涂装检验流程结构简单,本发明通过设置不同的单元,规范了涂装检验流程和要求,满足了企业的高质量发展需求,对于提升涂装检验的合格率有很大的效果。

Description

一种涂装检验流程
技术领域
本发明涉及涂装检验领域,具体为一种涂装检验流程。
背景技术
在整个涂装过程中,质量控制和检查工作贯穿于整个阶段,但是目前工厂涂装检验没有规范性的措施,确保工厂涂装的达到标准。
发明内容
本发明所解决的技术问题在于提供一种涂装检验流程,以解决上述背景技术中提出的问题。
本发明所解决的技术问题采用以下技术方案来实现:一种涂装检验流程,包括:色差测量单元、附着力测试单元、模厚测量单元、硬度测试单元、耐冲击测试单元、耐酒精测试单元、盐雾测试单元、对色箱测试单元;所述色差测量单元通过色差仪进行色差检测;通过色差检测进入附着力测试单元,通过百割刀、3M胶带进行测试;所述膜厚测量单元通过测厚仪进行侧厚;所述硬度测试通过定都测试仪和铅笔进行测试;通过硬度测试后进行耐冲击测试,所述耐冲击测试通过冲击强度测定仪进行测定;所述耐酒精测试通过耐磨擦拭验机进行测试;所述经过耐久测试通过后进行盐雾测试,所述延误测试通过盐雾试验机测试;最终通过对色箱对颜色进行判定。
与现有技术相比,本发明的有益效果是:本发明通过设置不同的单元,规范了涂装检验流程和要求,满足了企业的高质量发展需求,对于提升涂装检验的合格率有很大的效果。
附图说明
图1为本发明的结构示意图。
色差测量单元1、附着力测试单元2、模厚测量单元3、硬度测试单元4、耐冲击测试单元5、耐酒精测试单元6、盐雾测试单元7、对色箱测试单元8。
具体实施方式
为了使本发明的实现技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体图示,进一步阐述本发明。
一种涂装检验流程,包括:色差测量单元、附着力测试单元、模厚测量单元、硬度测试单元、耐冲击测试单元、耐酒精测试单元、盐雾测试单元、对色箱测试单元;所述色差测量单元通过色差仪进行色差检测;通过色差检测进入附着力测试单元,通过百割刀、3M胶带进行测试;所述膜厚测量单元通过测厚仪进行侧厚;所述硬度测试通过定都测试仪和铅笔进行测试;通过硬度测试后进行耐冲击测试,所述耐冲击测试通过冲击强度测定仪进行测定;所述耐酒精测试通过耐磨擦拭验机进行测试;所述经过耐久测试通过后进行盐雾测试,所述延误测试通过盐雾试验机测试;最终通过对色箱对颜色进行判定。
另一方面,本发明提供更详细的测量要求:
色差测量
仪器:色差仪,广泛用于塑胶及印刷等行业,主要根据CIE色空间的Lab,Lch原理,测量显示出样品与被测样品的色差△E以及△Lab值。
照明:自然光线下,或300~400LX光线下,眼睛以45度角度观察涂膜表面。
测量方法:目视被测工件涂层表面,颜色与标准样板比较,基本无差异则判为合格,具有明显色差,则判为不合格,当颜色存在差异,却难以判定合格与否时,用色差仪进行测定,根据比值进行判定。
色差指标:以下数据位一般涂装业内所采用之标准,实际数据需请客户提供或与客户讨论。
Delta E(△E) ≤0.8或1.0为合格 △E=√(△a²+△b²+△L²)
△a=a1-a2 △b=b1-b2 △L=L1-L2
(SONY标准:△E≤1.2 △L=±1.0 △a、△b=±0.3)
附着力测试
仪器:百割刀、3M胶带【粘附力在2.9N/10MM(300GF/10MM)以上的胶带】。
方法:用百割刀在测试样本表面划10*10个(共:100个)1mm*1mm小网格,每一条划线应深及涂层的底层;用毛刷将测试区域的碎片刷干净;用3M 600号胶纸或等同效力的胶纸牢牢黏住被测试小网格,并用橡皮擦用力擦拭胶带,以加大胶带与被测区的接触面积及力度;用手抓住胶带一端,在垂直方向(90°)迅速扯下胶纸,同一位置进行2次相同试验。
判定标准:一般要求附着力≥1级或≥2级时为合格,而防腐涂料要求通常需≥1级,才算合格。实际数据需请客户提供或与客户讨论。
0级-划线边缘光滑,在划线的边缘及交叉点处均无涂层脱落;
1级-在划线的交叉点处有小片的涂层脱落,且脱落总面积小于5%
2级-在划线的边缘及交叉点处有小片的涂层脱落,且脱落总面积在5%~15%之间
3级-在划线的边缘及交叉点处有成片的涂层脱落,且脱落总面积在15%~35%之间
4级-在划线的边缘及交叉点处有成片的涂层脱落,且脱落总面积在35%~65%之间
5级-在划线的边缘及交叉点处有成片的涂层脱落,且脱落总面积大于65%
膜厚测量
仪器:测厚仪
种类:1)磁性测厚方法:可无损的测量磁性金属基体(如钢、铁、合金和硬磁性钢等)上非磁性覆盖层的厚度(如铝、铬、铜、橡胶、油漆等)。
2)涡流测厚方法:可无损的测量非磁性金属基体(如铜、铝、锌、锡等)上非导电覆盖层的厚度(如橡胶、油漆、塑料等)。
3.方法:在工件的主要表面上,距边缘至少25mm以上取5个不同的点,测量其厚度,然后取平均值作为该涂层的厚度值。
4.判定标准:
一般:A级面之任一点膜厚小于40µm或稍微露青(底),均为不合格。平均值以60-100µm为合格,同一批产品膜厚以±10µm为标准。以上数据为一般涂装业内所采用值标准。
OWA:涂层最低不可少于60µm,最高不超过79.5µm。根据EN最厚80µm,如果超过80µm就必须要做另一套完成的测试程序。
硬度测试
仪器:硬度测试仪、铅笔。
方法:用不同硬度的铅笔,与漆膜表面成一定角度(45度),用一定的力(1KG)在漆膜表面上划过,然后用粘有酒精的棉纱布擦拭划痕处。
判定标准:先以软(B)→硬(H),逐一做测试,当划痕不可被酒精擦去时,则涂膜的硬度即以铅笔之最硬型号标识。一般判定之数据以≥2H,允许有轻微痕迹为合格。实际数据需客户提供或相互讨论。
耐冲击测试
仪器:冲击强度测定仪。
方法:将预先准备好的被测工件涂膜朝上放好。然后按产品标准的耐冲击指标测定,如果产品标准规定的耐冲击指标是1KG.50CM,即以1KG重锤提起至50cm高,按重锤自由落在涂膜上。注:样板冲压部位距边缘不得少于15mm,每个冲击点的边缘间以15~18mm为宜,观察冲击后涂膜的状态。
判定标准:一般测试标准,以施加550g砝码力、位移50cm对试验片进行冲击。以涂层无剥落、龟裂等现象为合格。实际标准需请客户提供或沟通讨论。通常粉末供应商提供粉末时,均会提供已测试之样板,我方仅需提供标准。
耐酒精测试
仪器:耐磨擦拭验机、95~99.5%酒精、棉布(厚1.5mm,30cm*30cm,含棉约60%以上)。
方法:将粘有浓度酒精的棉球施加1000g砝力,依指定次数来回擦拭,往返1次/2秒。
判定标准:被测工件涂装面无退色、起泡、掉漆等不良现象。一般测试,以施加1000g砝码力,擦拭30次为标准(华硕电脑标准)。砝码重量与擦拭次数,需请客户提供或沟通。
盐雾测试
仪器:盐雾试验机、5%的氯化钠盐水溶液
方法:1)溶液PH值调在中性6~7作为喷雾用的溶液。
2)试验相对湿度≥95%,温度均取35℃±1℃。
3)盐雾升降率在1~2ml/80cm².h之间,需24小时连续喷雾。
4)试样应被支撑或悬挂起来,偏离纵向的角度再15度~30度之间,最好使被测试的大部分表面与通过盐雾室的盐雾主流向平行。
3.判定标准:涂层无腐蚀、氧化或脱落等现象为合格,测试时间需请客户提供或与之讨论。
4.备注:如在天然暴露环境下对某产品样品进行试验,待其腐蚀可能要1年,而在人工类比盐雾环境条件下试验,只要24小时,即可得到相似的结果。此测试方法一般用于户外或特殊环境之产品,除特殊要求外,一般室内用产品无需做此测试。
对色箱
在日常生活中,我们可以感受到,当在不同光源或环境下观看同一样物件时,呈现在我们眼中的物件颜色或多或少会有偏差,这是因为不同光源拥有不同辐射能量,在照射到物体上时,会呈现不同之颜色。
当这个经验引申到涂装上的颜色管理时,类似的情况也会发生。例如:当品检员虽然细心对比货品之间的颜色,但货品送到客户时也会收到客户对货品颜色差异的投诉,严重者可能导致退货或遭到客户索赔,对公司的商誉自然受到损坏。
要解决这些问题,最简单的方法就是检定颜色时,必须在相同的光源及可控制的条件下进行,例如常用之人工日光灯CIED65(即6500K色温),否则一切评定是没有意义及不可信赖。要达到这类标准,最直接及有效的方法,莫过于使用现时最常用之对色灯箱。
检验方法:
将所有可能照射在检验品上的外来光线必须尽量避免,如窗户在视野范围内,应装上灰色窗帘遮蔽,所以如果能在黑房内使用对色灯箱是最为理想的。
测试时灯箱内绝不可放置其他杂物。
打开欲测试的的光源灯管,将样板与被测物一同放入对色箱中。
检验标准:
测试员需对颜色有相当灵敏度。
测试员以眼睛直接观察被测工件与样板颜色有无差异。
目测颜色无差异,为合格。
与现有技术相比,本发明的有益效果是:本发明通过设置不同的单元,规范了涂装检验流程和要求,满足了企业的高质量发展需求,对于提升涂装检验的合格率有很大的效果。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点,本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明的要求保护范围由所附的权利要求书及其等效物界定。

Claims (1)

1.一种涂装检验流程,其特征在于:包括:色差测量单元、附着力测试单元、模厚测量单元、硬度测试单元、耐冲击测试单元、耐酒精测试单元、盐雾测试单元、对色箱测试单元;所述色差测量单元通过色差仪进行色差检测;通过色差检测进入附着力测试单元,通过百割刀、3M胶带进行测试;所述膜厚测量单元通过测厚仪进行侧厚;所述硬度测试通过定都测试仪和铅笔进行测试;通过硬度测试后进行耐冲击测试,所述耐冲击测试通过冲击强度测定仪进行测定;所述耐酒精测试通过耐磨擦拭验机进行测试;所述经过耐久测试通过后进行盐雾测试,所述延误测试通过盐雾试验机测试;最终通过对色箱对颜色进行判定。
CN201811650508.0A 2018-12-31 2018-12-31 一种涂装检验流程 Pending CN109596537A (zh)

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