Chii chinonzi E{{0}Coating?

Kekutanga timu yedu yeinjiniya yakavhura tireyi yebhatiri yakaora yakadzoka kubva kunzvimbo yekugovera yemahombekombe muSoutheast Asia, maitiro ekutadza akatiudza zvese zvataifanira kuziva. Kupfapfaidza munyu kwakanga kwapinda nepaburi remupini pedyo nemusono wesimbi, uye mukati memwedzi misere simbi yairatidza ngura ichibuda ropa kuburikidza neyaifanira kunge iri -makore ekubhaiza. Chiitiko ichocho chakachinja matsananguriro atinoita kuchengetedzwa kwepamusoro kwesimbi yese yakavharirwa inosiya nzvimbo yedu.

Electrocoating-e-coating for short-inoshanda pamusimboti uchiri kunzwika kunge wakanaka kana waunzwisisa. Nyura chikamu chinoitisa mubhavhu rine machaji ependi zvidimbu, shandisa DC voltage, uye izvo zvimedu zvinofamba nemumvura uye zvinozviisa panzvimbo yega yega inogona kusvika. Iyo fizikisi yakatwasuka: zvinopesana nemhosva inokwezva. Asi huinjiniya hunodiwa kuita basa iri pachiyero chekugadzira hunosanganisira chemistry, fluid dynamics, uye process control iyo yakatora makumi emakore indasitiri yemotokari kunatsa.

Iyo Electrochemistry Kuseri kweFirimu Kuumbwa

Kana ikozvino yakananga ichipfuura nepakati yekugezera yekugezera, zvina zvakasiyana zviitiko zvinoitika panguva imwe chete. Electrophoresis inofambisa resin yakachajwa uye pigment particles kuenda kune workpiece. Electrodeposition inokonzeresa kuti zvimedu zvirasikirwe nekuchaja uye kudonha sefirimu rinoenderana. Electrolysis inogadzira haidrojeni pane cathode uye oksijeni pane anode. Electroosmosis inomanikidza mamorekuru emvura kubva mune ichangobva kuiswa coating, ichisimbisa iyo firimu isati yatombosiya tangi.

Mhedzisiro yacho inomonereka kumativi, inopinda mukati, uye inovaka kune yega-kukobvu inodzika inomisikidzwa nekuramba kwemagetsi kwefirimu raiswa. Kana iyo yekupfeka yasvika kune imwe ukobvu, inovhara pamusoro zvakakwana zvekuti kuyerera kwazvino kunodonha uye deposition inomira. Izvi -kuzvimisa zvinotsanangura chikonzero nei e-coating ichigadzira mafirimu akafanana neakaomesesa ejometries-chimwe chinhu chekupfapfaidza chisingagoni kuenderana pazvikamu zvine maburi mukati uye makona akasimba.

Kune dzimba dzemabhatiri dzesimbi dzinopedza hupenyu hwavo hwesevhisi dzakafumurwa munyu wemugwagwa uye humidity bhasikoro, musiyano uyu unokosha. Anodic e-coating ichine maapplication-tembiricha yakaderera inoshanda zvirinani pakupisa-sensitive assemblies{4}asi lithium battery enclosure inoshanda neinotonhora-simbi yakakungurutswa inenge yakanyatso tsanangura cathodic epoxy primers.

Chii Chinonyatsoitika muTangi

Iyo yekugezera yekugezesa inotaridzika inonyengera iri nyore: 80-90 muzana yemvura yakasvibiswa inotakura 10-20 muzana yependi yakaoma pasi pekutambudzika nguva dzose. Asi kuchengetedza iyo yekugezera mukugadzira kunoda kutariswa kwemazuva ese kune gumi nemaviri anoenderana paramita. Solids zvemukati zvinonyungudika sezvinhu zvakaiswa pazvikamu. pH inoshanduka seasidhi byproducts inounganidza. Conductivity inoshanduka nekusvibiswa kubva kudhirowa uye kuputsika zvigadzirwa. Tembiricha inokanganisa viscosity uye deposition rate.

Process Targets

• 18-20 muzana yakaoma
• pH iri pakati pe5.9 ne6.3
• Kuitisa: 1100-1500 µS/cm
• Tembiricha: 28-32 degrees

Mainjiniya edu anonongedza 18-20 muzana solids, pH pakati pe5.9 ne6.3, conductivity kubva pa1100 kusvika 1500 microsiemens per centimeter, uye tembiricha yekugezesa pa28-32 degrees Celsius. Aya marenji anobva kune coating supplier zvirevo zvakanatswa kuburikidza nemakumi emakore ekugadzira mota ruzivo. Kutsauka kubva pazviri hazvikonzerese kutadza nekukurumidza, asi kunoshandura hwindo rekuita uye kunowedzera kusiyanisa mukugadzirwa kwemafirimu, kutaridzika, uye kuita ngura.

Voltage application inoda rampu inodzorwa. Kurova workpiece nemagetsi akazara nekukasira kunoita kuti ikozvino inamire kumucheto kwakapinza uye nzvimbo dzakatetepa, zvinogona kupaza firimu rekuisa uye kugadzira mapinho akauraya tireyi yebhatiri muSoutheast Asia. Gumi kusvika gumi neshanu sekondi rampu yekushanda voltage pakati pe150 ne350 volts inobvumira kugovera kwazvino kuenzana pamusoro pepamusoro. Nguva yekunyudzwa ye120-180 masekonzi inopa yakakwana firimu kuvaka pasina kutambisa kwearefu ma cycle.

Hukama hwecoulombic{{0}zvingangoita 1.2 kusvika 1.4 coulombs pa square centimita inoisa imwe micrometer yefirimu-inopa zvikwata zvinogadzira chishandiso chekufungidzira chekugadzirisa maitiro. Kana zvikamu zvikabuda zvitete, tarisa rectifier yakabuda. Kana ukobvu hwuchisiyana pamutoro, ongorora kuiswa kwe electrode uye kutenderera kwekugezesa.

Pretreatment Inosarudza Zvese

Hechino chokwadi chisina kugadzikana pamusoro pemagetsi: e-bhachi pacharo haawanzokonzeresa kutadza kushanda. Pretreatment inoita. Dambudziko rega rega recorrosion ratakambotevera kuburikidza neketani yedu yekugovera yakatanga mukucheneswa kusina kukwana, phosphating isina kunaka, kana kusvibiswa pakati pematanho ekuita.

Simbi substrates inoda degreasing kubvisa stamping oiri uye kubata ivhu inodzivirira makemikari bonding. Ultrasonic kucheneswa pa60 madhigirii celsius kwemaminetsi matatu achiteverwa nepamusoro{{2}kupfapfaidza kwepfapfaidzo pa 0.3 megapascals kunobvisa kusvibiswa kwakawanda. Asi "zvizhinji" hazvina kukwana kune zvikamu zvinoda kurarama maawa 1000 ekuedzwa kwemunyu.

Phosphate conversion coating inogadzira iyo microscopic crystalline chimiro chinomisikidza iyo organic firimu kusimbi. Zinc phosphate systems yakananga 2-4 magiramu paskweya mita ine saizi yekristaro iri pasi pe5 micrometer yave chiyero chemotokari. Iwo makristasi anopa mechanical interlocking nepo phosphate layer inowedzera yayo corrosion inhibition. Svetuka nhanho iyi kana kuimhanyisa zvisizvo, uye kunyangwe firimu re-e-jasi rakakwana richadzikira kana ngura yatanga pachiratidziro.

Yekupedzisira sukurudza pamberi pe electrocoating inofanira kuunza pamusoro conductivity pasi pe 10 microsiemens per centimeter. Kufambiswa kwepamusoro kunokonzeresa kusaenzana kwazvino mu e-coat tank uye kunoburitsa makwapa emvura nemamaki ekuyerera anorambwa nevanoongorora mhando.

Equipment Realities

Tangi dhizaini inotevera zvikamu zviri kuputirwa. Rectangular matangi anoenderana indexing masisitimu uko mitoro inogara panzvimbo dzakatarwa. Zvikepe{{2}matangi ane maumbirwo ezvikepe zvine mutsindo wekupinda nekubudamo anogashira anoenderera mberi emonorail conveyor. Nzvimbo yemukati inoda girazi-fiber-yakasimbiswa plastiki insulationer yakayerwa kusvika 20,000 volts kudzivirira kubuda kwemvura uye kuona kuti magetsi akamira pazvishandiso kwete kumadziro etangi.

Masisitimu ekutenderera anogara achienderera mberi-anoavhara kweinopfuura maawa maviri uye maoriki otanga kudzika pasi. Mapombi ane hukuru hwematatu kusvika mana akazara ekutendeuka paawa anochengetedza kugovera kwakafanana. Masero epasi ari pamusoro pe 0.4 metres pasekondi anodzivirira nzvimbo dzakafa panoungana zvidimbu zve pigment zvinorema.

Ultrafiltration systems inoburitsa mvura-chaizvoizvo mvura yakachena ine low molecular weight solvents-kubva mubhavhu kuti ishandiswe mumashure-matanho ekugezesa. Iyi loop yakavharwa inodzoreredza ingangoita 80 muzana yezvinhu zvakadhonzwa pazvikamu, zvichidzikisa zvese zviri zviviri mutengo wemidziyo uye mitoro yekuchenesa mvura. Kushanda nevashambadziri vanoda kupfekedza nzvimbo dzakakura dzepamusoro pamigero yakaoma, kuita uku kudzoreredza kunokanganisa zvakananga hupfumi hwekugadzira.

Iyo anode system inofanirwa kutariswa zvakanyanya kupfuura iyo inowanzo gamuchira. Semi-mamembres anopindika akatenderedza anodhi anobvumira ma ionic byproducts kuti apfuure uchichengeta resin uye pigment. Iyo anolyte fluid inowedzera asidi sezvo kugadzirwa kunoenderera; conductivity control system inobuda ropa yakadzika anolyte uye kuitsiva nemvura yakasvibiswa kuchengetedza ionic chiyero. Regedza dunhu iri uye yekugezesa kemikari inodonha kusvika kunaka kwekupfekedza kwave kusingatarisike.

Kuedza Kunokosha

Salt spray exposure paASTM B117 inoramba iri yakajairwa yakakurisa corrosion bvunzo kunyangwe ichibvumidzwa. Mamiriro ekuedzwa-5 muzana yesodium chloride solution pa35 madhigirii celsius nekuratidzwa mhute nguva dzose-inomhanyisa kuonda asi haitevedzeri mabhasikoro akanyorova, tembiricha, uye kusvibiswa kunoitika musevhisi chaiyo.

Kune ma cathodic epoxy primers pamusoro pe phosphated simbi pa 20-35 micrometer yakaoma firimu ukobvu, zvakatemwa zvinowanzoda 1000 maawa mashoma kuratidzwa nemunyori anokambaira anogumira mamirimita maviri divi rimwe chete.Tsika bhatiri dzimba supplierskazhinji kusundira izvi kusvika kumaawa 1500 kana zvasanganiswa ne zinc-nickel plating pa substrate. Cyclic corrosion test inosanganisira munyu wekupfapfaidza, kunyorova, kuoma-kudzima, uye kuomesa chando kunopa wirirano iri nani nekushanda kwemunda asi zvinotora nguva yakareba uye zvichidhura zvakawanda.

Muchinjika-hatch adhesion test paASTM D3359 inobata kukundikana kwepretreatment isati yava dambudziko remumunda. Impact resistance pa 50 centimeter-kilograms inosimbisa kuti firimu rinokwanisa kurarama nekubatwa kwemagetsi kunoitika panguva yekubatanidza bhatiri pack. Kuoma kwepenzura ye2H kana kudarika kunoratidza kupora zvachose-mafirimu asina kubikwa zvishoma anonzwa kuoma asi anoramba achishanda nekemikari uye anoderera nekukurumidza pasi pemamiriro ekunze.

Kutariswa kwekugeza zuva nezuva kunoteedzera maparameta anofanotaura kunaka kwekuputira: solids content, pigment-ku{1}}binder ratio, pH, conductivity, neutralization yakaenzana. Kana imwe yeiyi inodonha kunze kwekutsanangurwa, mainjiniya ekuita anoongorora asati atanga kugadzira. Kumirira kuongororwa kwemhando yekubata matambudziko kunorasa zvinhu uye kugona uku uchiisa njodzi kutumirwa kwevatengi.

Iko Iyi Technology Inouyisa Kukosha Kwechokwadi

Indasitiri yemotokari yakafambisira mberi-kunamatidza machira nekuti hapana imwe tekinoroji yaigona kupfeka zvakafanana zvikamu zvebhokisi, hem flanges, uye nzvimbo-majoini akasungwa anoumba chimiro chemuviri wemotokari. Kugona kumwe chete uku kunoturikira zvakananga kumabhatiri akavharirwa emotokari dzemagetsi.

Matireyi esimbi ebhatiri anosangana nepfapfaidzo yemumugwagwa,-kemikari yeicing, kuchovha bhasikoro, uye neapo neapo kuchinja kwematombo muhupenyu hwavo hwose. Nzira yekudzivirira ngura inofanira kurarama makore 15 kana 150,000 mamaira munzvimbo dzinotyisa-funga migwagwa ine munyu muScandinavia kana migwagwa yemumhenderekedzo yegungwa munzvimbo dzinopisa. E-coating inopa uniform base layer inodzivirira corrosion initiation pane weld seams, laser{8}}cut edges, uye kuita makona anogona kupotswa kana kusavharwa zvakakwana nekupfapfaidza.

Chikwata chedu chakavharirwa simbi kubva padiki 48V module dzimba kusvika akazara-matireyi anodhonza bhatiri anodarika masikweya metres maviri enzvimbo. Iyo yekukanda simba mukana we electrocoating inova pachena kana iwe uchiedza kupfapfaidza pendi yemukati yeakavharwa bhokisi chikamu. Pamwe unoisiya isina uye unovimba kuti haimboona hunyoro, kana iwe unoboora maburi ekupinda ayo anogadzira dzimwe nzvimbo dzekutanga corrosion. E-coating inopinda mumhango yega yega inogona kuzadzwa nebhavhu, ichipa dziviriro yakakwana pasina dhizaini.

Yakaderera-magadzirirwo ekurapa tembiricha anogadzirisa kunzwa kupisa kwemamodule akaungana anomiririra budiriro ine musoro yelithium bhatiri pack vagadziriavo vanoda kuisa machira ekudzivirira mushure mekuiswa kwesero. Standard e-coat systems inorapa pa170 degrees Celsius kwemaminetsi makumi maviri-tembiricha inogona kukanganisa maseru nemagetsi. Yakaderera-mabiki emamwe anorapa pa140 madhigirii kwemaminetsi gumi nemashanu anopira mamwe maitiro ekupedzisira asi anoramba akakwana kune akawanda maapplication apo kukwikwidza kunotadzisa kuratidzwa kupisa.

Zvinoshanda Kugumira uye Tradeoffs

Sarudzo dzemavara dzakaganhurirwa kana ichienzaniswa neupfu yekupotera kana pendi yemvura. Mazhinji e-macoat masisitimu anoita maprimer matema kana grey; kuchinja mavara kunoda kuchenesa tangi kunotora mazuva uye kutambisa zvinhu. Zvimwe zvivakwa zvinoshandisa matangi akawanda emavara akasiyana, asi izvi zvinowedzera capital uye pasi penzvimbo zvinodiwa.

Chinodiwa chekurapa chinorambidza kusarudzwa kwe substrate. Mapatsi asingakwanise kumira 140-175 madhigirii celsius panguva yekurapa-mamwe mapurasitiki, pre-akaunganidzwa maelementi ane tembiricha{5}}zvinonzwa zvinhu, maparts ane press-fit bearing{8}}zvinoda dzimwe nzira dzekupfeka. Anodic e-coat masisitimu inopa yakaderera kurapa tembiricha asi kuzvipira kuita ngura.

Kuteerera kwezvakatipoteredza kwave nyore kana zvichienzaniswa nezvinonyungudutsa{{0}masisitimu ekupfapfaidza anoenderana nawo. E-mabhachi ekugezesa ane mashoma anokanganisa organic compounds, kusangana neEPA neCARB zvinodiwa pasina emission control equipment. Iyo yakavharwa-loop rinse system inoderedza kushandiswa kwemvura uye kubuda kwetsvina. Asi bhati pacharo rinoda kutarisisa-yakashandiswa anolyte inoda kusadzikama, ultrafiltration membranes inoda kuraswa mushure memwedzi 18-36 yebasa, uye phosphate sludge kubva mukugadziriswa ine simbi dzakadzorwa.

Kana Outsourcing Inoita Sense

Vazhinjilithium iron phosphate bhatiri vatengesiuye vagadziri vezvakavharirwa vanoburitsa magetsi kuzvitoro zvine hunyanzvi pane kuisa mari mumidziyo yekutapwa. Izvi zvine musoro wezvehupfumi kana mavhoriyamu ekugadzira asingakodzeri kugona kwakatsaurirwa, kana maratidziro ekupfekedza akawanda achida kuchinjika kusingakwanise kupa mitsara imwe-yechinangwa, kana hunyanzvi hwekugadzirisa bhati nekudzora kunaka huchibuda kunze kwehunyanzvi hwakakosha.

Iyo tradeoff injodzi yekutengesa. Nguva dzekutungamira dzinowedzera mazuva kune zvirongwa zvekugadzira. Hunhu hunoenderana nemaitiro echitoro chebasa pane kutonga kwemukati. Kufambisa pakati pekugadzira uye kupfekedza zvivakwa kunowedzera mutengo uye kubata kuratidzwa.

Maitiro edu anga ari ekukodzera akawanda ekupfekedza masosi, kupa akadzama maratidziro anonongedza maitiro paramita uye bvunzo zvinodiwa zvinotsanangurwa pamusoro, uye kuongorora hunouya mhando pane zvese zvinotumirwa. Kana tawana nyaya, tinodzitsvaga tichidzokera kumashure nemaitiro ekuputira kuti tione zvikonzero pane kungoramba zvikamu. Kudyidzana uku kwakavandudza hunhu kune vatengesi vedu vekupfeka uku ichitipa kuchinjika kwekuchinja vhoriyamu sezvo kudiwa kuchichinja.

E-tekinoroji yekukoira yawana chinzvimbo chayo seyakatungamira hurongwa hwekudzivirira ngura pamasimbi epasi. Kusanganiswa kwekuvhara mayunifomu, zvimiro zvemufirimu anodzorwa, kutevedza kwezvakatipoteredza, uye kushanda zvakanaka kwekugadzira kunoita kuti ive sarudzo iri pachena yekuvharirwa kwebhatiri uye maumbirwo ayo anoda kusimba kwenguva refu munzvimbo dzinotyisa dzesevhisi. Kunzwisisa maitiro ekuita, zvinodiwa zvemhando, uye zvinogoneka zvisingakwanisi kunobatsira zvikwata zveinjiniya kutsanangura masisitimu ekuputira anounza kuita kwakavimbika pane kutarisira kuti generic callout neimwe nzira ichaburitsa zvinogamuchirika.