电泳技术

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电泳槽、备用槽和电泳涂装室的功能和设计(选用)原则是计么?电泳槽把是电泳涂装作业的浸槽（或称主槽)，形状有船形和长方形两种．长方形电泳槽适用于步进间歇式生产，其内部大小主要取决于被涂物(或装挂吊)的尺寸．船形电泳槽适用大量流   水连续式生产，其两端的斜坡长度取决被涂物出入槽的角度；其平段的长度根据链速相泳涂时   间确定．为保证槽液较好的搅拌状态和最佳的极间距，槽子容纳被涂物要留有间隙，典型电泳槽的断面间隙尺寸列于下图表中． 典型电泳槽间隙尺寸(mm) ABCDE汽车车身200～250250～300450～500250～300500～550建 材1

 电泳槽阳极系统的设计中英对照版Anodes           阳极Acathode-to-anoderationotgreaterthat4:1isrecommendedwiththeimmersedanodeadjacenttothevehicleconsideredastheanodesurfacewhenflatplateorsemi-circularanodesareused.Thisratioiscalculatedwiththefollowingformula:AnodeArea=(Vehicles/Minutex2MinutesxSurfaceArea/unit)/

 电泳槽液冷却系统设计中英对照版PaintCooling           槽液冷却Allmodernelectrocoatformulationsoperateathighertemperaturescomparedwiththeoperatingtemperaturesoftheoriginalcathodicproducts.Futuredevelopmentsareexpectedtofollowthistrendandshould,thus,permitareductioninthecoolingloaddesignforelectrocoatsystems.当今所有电泳漆组成的，操

Filtration          过滤Toremoveparticulatedirt,100%ofallcirculatedpaintshouldbefilteredthroughamaximum25micron(nominalrating)feltglazedbagorcartridgefilter.Thefiltermediamustbemadeofasynthetic,non-water,solublematerial,suchaspolypropyleneoracrylicfiber. Mono-filamentfilterbagsshouldnotbeused.为了

 GasketMaterials          垫圈材料Thebestgasketmaterialsarebutylrubber,VytonandTeflon.Materialsthatworkwellincludenaturalrubber,EPT,Hycar-RS24,andEPDM.NeopreneandBunaSshouldnotbeused.最好的垫圈材料时异丁橡胶和聚四氟乙烯。其它材料如天然橡胶，乙烯再烯三元共聚物，合成橡胶及三元乙丙橡胶亦可。但氯丁橡胶和丁苯橡胶不能使用。

Valves          阀Eccentricplug,ball,andbutterflyvalvesareallusedinelectrocoatsystems.Materialsofconstructionandconfigurationareimportantconsiderationsforbestservicelife.在电泳系统中，偏心阀，球阀及蝶阀都有使用，其材料及结构对延长使用寿命很重要。Thewafersandshaftsofbutterflyvalvesshouldbefabricatedonlyof316stainlesssteel.Somecastirons,

 Piping 管路Pipingexternaltothediptankshouldbemadeofstainlesssteelschedule40 seamless"A",304stainlesssteelforpipesizeslessthan2.5"Dia. Tengaugeistypicalonpipesizesgreaterthan3"Dia.  Whilemanymildsteelsystemscurrentlyexistandworkwell,stainlesssteelwillgivegreaterflexibilitywithfutureformulation

 Pumps         泵Endsuctioncentrifugalpumps,bothhorizontalandvertical,arecommonlyusedinelectrocoatsystems.Thechoiceofpumpsshouldbedeterminedbyeconomics,designconstraints,ordesignerpreference.在电泳系统中，一般使用卧式及立式端吸式离心泵，泵的选用取决于经济条件，设计的限制或设计师的偏好。Verticalturbinepumps(equivalenttoProcessSystemsThrustHead)havepr