油墨测试项目.doc

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1、JohnsonMattheystandardtestconditionsforglassenamels:玻璃釉料标准测试条件：FiringConditions:烧结条件：ThefiringconditionsareassessedonaCentrothermbeltfurnace,3zones,timeinkiln（includingcooling）25minutes.Settemperatureofzones1,2and3arementionedasfiringtemperatureglassenamel.Thesevaluesshouldbeusedforcomparativepurp

2、osesonlyanddonotrefertofiringtemperaturesunderproductioncircumstances。使用Centrotherm三段式带式炉，将样品在炉内烧25分钟（包括冷却时间）评估其烧结条件。区域1，2和3的设定温度为该样品釉料的烧结条件。其值仅用作参考，而不作为实际生产条件。Typicalspecification:dependingonenameltype,nogeneralspecification.标准参数：无，取决于釉料类型。ThermalExpansion:热膨胀：TheThermalExpansionCoefficient(TEC)i

3、sdeterminedbymeasuringtheexpansionoftheglassenamelbetween20and320℃.Thesampleispreparedbypressingglassenamelpowderintoamouldandfireuntilitiscompletelyfused.ThesampleisthenmeasuredonanElectrotechdilatometer.通过测量釉料样品在20到320度之间的膨胀情况确定其膨胀系数。样品准备：将玻璃釉料粉未压入一模具内，加热直至其完全熔化。然后利用膨胀仪测量样品。Typicalspecification:

4、Dependingonenameltype,butclosetotheTECofglass.标准规格：取决于釉料类型，但必须接近玻璃的膨胀系数。LightTransmission:透光率（遮盖力）：Thelighttransmission(UVandVisual)aredeterminedusingaGretagD200opticaldensitymeter.Theprinted(wetlayerthickness)is25um.使用D200型光学密度计测量透光率，湿膜厚度为25um样品确定该釉料的遮盖力。Typicalspecification:Dependingonenameltype

5、,butusually<0.1%.标准规格：取决于釉料类型，但通常小于0.1%.Scratchresistance:耐刮度（附着力）：ScratchresistanceistestedusingaBraiveinstrumentssclerometerwithatungstencarbidetip.Itfeaturesasetofcalibratedspringswithdifferentstrengths.Thestandardtestisperformedat16N,guaranteedisbetterthan15N.Belowapictureofthesclerometerinuse

6、atJohnsonMatthey.利用带碳钨合金头的硬度计测量附着力。该硬度计有一系列不同强度的弹簧。测试标准为以16N的力作用于样品上，通常应保证其作用力不小于15N。Typicalspecification:>15N标准：>15N.Finenessofpaste:油墨细度：ThefinenessofthepasteisdeterminedusingaHegmanngauge.SeethepicturebelowfortheequipmentusedatJohnsonMattheyb.v.todeterminethefinenessofthepaste.用细度规测量油墨的细腻度。下图为庄

7、信万丰用来测量油墨细腻度设备。Typicalspecification:<30um通用标准：<30um.Viscosity:粘度：TheviscosityismeasuredusingaTAinstrumentsAR500.ThemeasuringsystemweuseforQCisa4cm,4°spindle.Thetemperatureofthecone,plateandthesampleis21℃(unlessme