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ID:53742331
大小:1.03 MB
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时间:2020-04-22
《高硅铝合金无氰浸锌的应用及故障解决-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、孽16期Vlo1.33No.16高硅铝合金无氰浸锌的应用及故障解决徐金来一,周杰2,赵国鹏,胡耀红(1.广州市二轻工业科学技术研究所,广东广州510663;2.广州鸿葳科技股份有限公司,广东广州510663)摘要:BH无氰浸锌液是新开发的应用于高硅铝合金预处理的产havesimilarcoverage.Theindustrialapplicationstatusof品,其各方面性能与含氰浸锌接近而优于市售无氰浸锌产品。BHcyanide—freezincdippingsolutionandtheexisting本文通过扫
2、描电镜照片比较了纯铝和高硅铝合金经BH无氰浸problemswereintroduced,suchasbubblingbetween锌、市售主流无氰浸锌及有氰浸锌处理后的表面形貌,发现无substrateandcoppercoating,neararack,aroundahole,at论是纯铝还是高硅铝合金,采用市售无氰浸锌液处理后的表面thebottominsideacavity,atagroove,andbetweencopper覆盖程度均较差,而BH无氰浸锌液和有氰浸锌液所得浸锌层andsilvercoatings
3、.Thecausesoftheseproblemswere的覆盖程度接近,介绍了BH无氰浸锌在工业上的应用情况及analyzedandsomecorrespondingmeasureswerepresented,其在应用过程中产生的问题,如基体与铜层、挂具点附近、孔suchasreplacingoil·-basedpensbywater-·basedonesfor位、低位、凹槽以及铜与银层之间的起泡现象,分析了产生问markingtheworkpiecetobeplated,strippingracksafter题的原因
4、,并提出了相应的解决办法,如:以水性笔代替油性electroplating,controllingthedescalingtemperaturebelow笔标记镀件,每次电镀后对挂具进行退镀和将除垢温度控制在40。C,addinghotwaterrinsebeforezincdipping,removing40。c以下,浸锌前增加热水清洗且清洗后甩净孔内液体,调整thewaterinsideholesthoroughlyafterrinsing,adjustingthe或更换碱铜槽,调整浸锌槽并加入配位剂,预镀银时工件带
5、电alkalinecopperplatingbathorreplacingitbyafleshone,入槽或调整镀银槽。regulatingzincdippingbathwiththeadditionofcomplexing关键词:高硅铝合金;无氰浸锌;微观形貌;故障排除agent,andapplyingelectricalcurrenttotheworkpiecesprior中图分类号:TQ153.15文献标志码:Atodippingthemintosilverpre—platingbathorregulatingth
6、e文章编号:1004—227X(2014)16—0708—04silverplatingbath.Applicationofcyanide--freezincdippingtohigh·-Keywords:high-·siliconaluminumalloy;cyanide-·freezincsiliconaluminumalloyandtr0ublesh00ting//XUdipping;micromorphology;troubleshootingJin—lai,ZHOUJie,ZHAOGuo—peng,HUYao—
7、hongFirst-author’saddress:GuangzhouEtsingPlatingAbstract:TheBHcyanide.freezincdippingsolutioniSaResearchInstitute,Guangzhou510663,Chinanewlydevelopedproductforpretreatmentofhigh—siliconaluminumalloy.Itsperformancesareclosetothatofa铝合金具有质轻、易压铸成型等特点,被广泛应cyanide—con
8、tainingzincdippingproduct,andbetterthanthat用于通讯设备的生产。通讯设备器材(如滤波器等)是ofacommerciallyavailablecyanide.freecounterpart.Inthis通讯系统机站调频设备的重要零件,硅在滤波器通讯article,thesurf
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