冲孔网腐蚀的两种处理方法-佛山市粤网五金制品

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冲孔网腐蚀的两种处理方法

时间:2019-03-19 09:13 点击:【字体:

  Etching冲孔网,alsoknownasmicroporousmesh,isusedforintegratedcircuitprinting,fluorescentscreenelectronicgrids,accuratefiltering,microelectrodecomponents,planarpins,leadframes,substratesintheelectronicindustry。Itsprocessingtechnologyisunique,andcanberoughlydividedintochemicaletchingandelectrolyticetching。Ithasdifferentusesandprocessingmethods。。Chemicaletchingistheprocessofscreeningorscreenprintingonthesubstratetocoverthepartsthatneedtobeprotectedonthesubstrate,thenerodingthepartsofmetalthatneednotbeusedbychemicalorelectrochemicalmethods,creatinganartificialabnormalenvironment,makingthesurfaceof不锈钢oxidizeanddissolvelocallyconsciously,andmakingthesurfaceof不锈钢showspecialtexture。Finally,theprotectivefilmisremovedandanetchingprocessisobtained。。Electrolyticetchingistouse不锈钢asanodeinsaltsolution,specialconductormouldascathode,andlowvoltageDCcurrenttomakeitsvoltageexceedthedissolutionpotentialdifferenceof不锈钢,sothatthebulkmetalof不锈钢enterstheelectrolyteintheformofions,soastoachievethepurposeofetching。Theprocessissuitableformeta形成L。

  Theadvantagesofthismethodarethatthemachinedsurfacecankeeptheoriginalsteelproperty,notdeform,theairpollutionisverysmall,andthepartsareeasytoform.Thedisadvantageisthatequipmentinvestmentislarge,hydrogenembrittlementiseasytooccurinmetal,heatgeneratedbyelectrolysisisnoteasytobringout(currentdistributionisuneven),thedistancebetweendieandparttobeetched(0.5mm)isnoteasytoensureandthescorchingphenomenon(depthisnoteasytocontrol).Atthesametime,becauseofitselectrolyticedgeeffectandresistancetoelectrolyticbreakdownofetchinglayer,itisnotsuitableforetchingsurfacegraphicsandtexts.。金属腐蚀是用强酸或强碱溶液直接腐蚀工件未受保护部位的一种方法,是目前应用最广泛的方法,其优点是腐蚀深度可深可浅,腐蚀速度快,缺点是腐蚀性溶液对环境污染大。另外,冲孔网的腐蚀成本较高,加工难度大。

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