Izikulufo ezivame ukusetshenziswa ekwelapheni ubusoi-oxidation, i-electrophoresis, i-electroplating, i-Dacromet izigaba ezine, okulandelayo ikakhulukazi ukusongelaumbala yokuphathwa kobuso besifinyezo sokuhlukaniswa.
- Okumnyama i-oxide：
Ihlukaniswe ngokushintshashintsha kwezinga lokushisa legumbi kanye nokushintshashintsha kwezinga lokushisa eliphezulu, ukuze ishintshe izinga lokushisa legumbi njengesibonelo senqubo yile: ukususa amafutha ngamakhemikhali – ukuwasha ngamanzi ashisayo – ukuwasha ngamanzi abandayo – ukususa ukugqwala kanye nokusika i-asidi – ukuhlanza – ukwenza kube mnyama – ukuhlanza – Ngaphezulu kwamafutha noma ukuvala. Kuyisendlalelo sefilimu ye-oxide eyakhiwe yi-sodium hydroxide kanye ne-sodium nitrite ekushiseni okuphezulu okungaphezu kwama-degrees ayi-100.
Ingxenye eyinhloko yefilimu ye-oxide yi-iron tetraoxide (Fe3C4), ukufana kwefilimu kungu-0.6-1.5um kuphela, ukumelana nokugqwala kuphansi kakhulu, uma kungabi ngaphezu kwamafutha noma kuvaliwe, kufakwa usawoti ongathathi hlangothi emahoreni angu-1-2 kuphela noma ngaphezulu, kufakwa phezu kwamafutha emahoreni angu-3-4 noma ngaphezulu. Izinto zikagesi ezincane azisebenzisi le nqubo okwamanje njengezikulufo. Zihlukile ekubukekeni kombala, i-oxide emnyama ne-zinc emnyama kanye ne-electrophoretic black close, kodwa azikhanyi njenge-zinc emnyama nombala omnyama we-electrophoretic.
- I-Galvanise：
I-electroplating emnyama inezinhlobo ezimbili ze-zinc emnyama kanye ne-nickel emnyama, isimiso senqubo sifana ngokuyisisekelo, kuphela ukwakheka kwesisombululo se-electroplating kanye nokwelashwa ngemuva kokwelashwa nge-lattice noma isixazululo se-passivation esihlukile. I-Zinc isebenza ngamakhemikhali, kulula ukuyi-oxidize futhi iyenze ibe mnyama emoyeni, futhi ekugcineni ikhiqize ukugqwala 'okumhlophe', i-zinc plating ngemva kokwelashwa nge-chromate ukuze imboze ungqimba lwe-zinc kwifilimu yokuguqulwa kwamakhemikhali, ukuze insimbi esebenzayo ibe sesimweni sokungasebenzisi, ukuphasiswa kwengqimba ye-zinc. Ifilimu ye-passivation kusukela ekubukeni ingahlukaniswa ibe yi-passivation emhlophe (i-zinc emhlophe), i-blue blue (i-zinc eluhlaza okwesibhakabhaka), i-passivation emnyama (i-zinc emnyama), i-passivation eluhlaza okwesibhakabhaka (i-zinc eluhlaza okwesibhakabhaka) njalo njalo.
- I-Electrophoresis Emnyama：
Ukwamukela indlela ye-electrochemical yokufaka izinhlayiya ze-colloidal ze-resin ephilayo ezingxenyeni ukuze kwakheke ungqimba lwe-organic coating olunemibala eyahlukahlukene, i-electrophoresis emnyama isetshenziswa kakhulu embonini, thatha inqubo emnyama njengesibonelo: ukususa amafutha-ukuhlanza-i-phosphate-electrophoresis ukupenda-ukomisa. Ingahlukaniswa nge-anodic electrophoresis (i-resin ionisation ibe yi-negative ion) kanye ne-cathodic electrophoresis (i-resin electrophoresis ibe yi-positive ion), kanti inqubo yokupenda uma iqhathaniswa nokusebenza kokwakhiwa inhle, ukungcola kanye nokulimaza imvelo ukunciphisa ukumelana kwayo nokusebenza kwe-neutral salt spray emahoreni angu-300 noma ngaphezulu, izindleko kanye nokumelana nokugqwala kanye nenqubo ye-Dacromet kuyafana.
- I-Zinc emhlophe：
Inqubo yokufakelwa nge-electroplating yile: ukususa amafutha – ukuhlanza – ukusebenza kwe-acid ebuthakathaka – ukufakelwa nge-electroplating i-zinc – ukuhlanza – izinwele ezimhlophe zokufakelwa – ukuhlanza – ukomisa, kanye nomehluko we-zinc emnyama akukho. Umehluko wesisombululo se-lat rack kanye ne-passivation, i-passivation emhlophe iyifilimu ye-zinc oxide esobala engenambala, cishe ayikho i-chromium, ngakho ukumelana nokugqwala uma kuqhathaniswa ne-zinc emnyama, i-zinc eluhlaza okwesibhakabhaka, i-zinc enemibala iphansi, izinga lomkhakha emahoreni angu-6-12, kukhona lo mkhiqizi wokufakelwa ngokuthuthukisa ukunemba kwesilinganiso sesisombululo sokufakelwa kungenziwa ukuze amelane ne-spray kasawoti engathathi hlangothi cishe amahora angama-20.
Ngenxa yohlobo lwe-zinc plating surface treatment species screws, ukuhlolwa kwe-neutral salt spray kwaqala ukubonakala ebusweni be-plating corrosion white, i-red rust iyenzeka cishe emahoreni angu-40, ngakho-ke ukumelana nokugqwala kwe-zinc emhlophe kungcono kune-nickel emhlophe. Ukubukeka kanye ne-nickel emhlophe uma kuqhathaniswa ne-zinc emnyama, emhlophe ngombala wokuqala we-zinc oluhlaza okotshani nomhlophe, kanye ne-nickel emhlophe uma kuqhathaniswa nomehluko omkhulu.
- I-Nickel Emhlophe：
Inqubo yokubeka iplati yile: ukususa amafutha – ukuhlanza – ukusebenza kwe-acid ebuthakathaka – ukuhlanza – phansi kwethusi – ukusebenza – ukuhlanza – ukubopha i-nickel nge-electroplating – Ukuhlanza – ukuphumula – ukuhlanza – ukomisa – noma ukuvala, kanti inqubo ye-nickel emnyama iyafana ngokuyisisekelo, ikakhulukazi ifomula yesisombululo sokufaka iplati ihlukile, i-zinc sulfide encane kanye nokujoyina kuncane. I-Nickel iyinsimbi ephuzi esiliva-emhlophe, ukuze ibukeke kangcono, izojoyina i-nickel-plated brightener. Ukumelana kwayo nokugqwala kanye ne-nickel emnyama akuwona umehluko omkhulu emahoreni angu-6-12, inqubo yabakhiqizi abajwayelekile nayo izobe iphezu kwamafutha noma ivaliwe, njengokucabanga ngomthelela wokugqwala ezingxenyeni zepulasitiki zezinto ezingenayo kufanele kusetshenziswe njengokugxila ekulawuleni ukuthi ngabe iphezu kwamafutha noma cha.
- I-zinc eluhlaza okwesibhakabhaka, i-zinc eluhlaza：
Inqubo icishe ifane neye-zinc emhlophe, i-zinc eluhlaza okwesibhakabhaka iyi-passivated zinc oxide ifilimu iqukethe i-0.5-0.6mg/dm2 ye-trivalent chromium. I-passivation eluhlaza, eyaziwa nangokuthi i-five-acid passivation, ingathola ifilimu eluhlaza okotshani obukhulu, isixazululo se-passivation siqukethe ama-ion e-phosphate, ifilimu eluhlaza okotshani ecwebezelayo ephumelayo iyifilimu eyinkimbinkimbi, eyinkimbinkimbi yokuvikela yama-chromates nama-phosphate.
Ngenxa yokumelana kwayo nokugqwala, i-zinc eluhlaza okwesibhakabhaka ingcono kune-zinc emhlophe, kuyilapho i-zinc eluhlaza okwesibhakabhaka ingcono kune-zinc eluhlaza okwesibhakabhaka. Umbala we-zinc eluhlaza okwesibhakabhaka uluhlaza okwesibhakabhaka kancane kanti i-zinc emhlophe isondelene kakhulu nemboni ukuze isetshenziswe kakhulu, lokhu kokugcina kungasetshenziswa njengomklamo womkhiqizo lapho inqubo ehlukile yezikulufo isetshenziswa.
- I-zinc enamel (ikhemikhali)：
Esigabeni sokugaya i-galvanizing senqubo ye-zinc enemibala kukhona ukumelana okuhle kokugqwala, inqubo yayo yokugaya i-colored passivation yile: ukugaya i-galvanizing - ukuhlanza - 2% - 3% i-nitric acid ngaphandle kokukhanya - ukuhlanza - ukugaya i-chromium enemibala ephansi - ukuhlanza - Ukubhaka ukuguga. Izinga lokushisa lokugaya liphansi kakhulu, ifilimu ihamba kancane, ifilimu ekhanyayo incane. Izinga lokushisa eliphakeme, ifilimu ijiyile futhi ikhululekile, ayinamathele ngokuqinile. Kungcono ukulawula cishe kuma-degrees angu-25 ukuqinisekisa ukuthi umbala ofanayo utholakala phakathi nesikhathi esithile.
Ngemva kokungasebenzi, kumele kubhakwe futhi kugcinwe isikhathi eside ukuze kuthuthukiswe ukunamathela kanye nokumelana nokugqwala kwefilimu. Faka umbala kwizikulufo ezifakwe i-zinc ngokuthinta phansi kokumelana nesifutho sikasawoti esingathathi hlangothi emahoreni angaphezu kwama-48, ukulawula okuhle kungenziwa emahoreni angaphezu kwe-100.
- I-Dacromet：
Kuyisifinyezo kanye nokuhumusha kwe-DACROMET, okungukuthi i-flaky zinc-based chromium salt protective coating, ebizwa nangokuthi i-zinc-aluminium coating. Inqubo eyisisekelo yile: ukususa amafutha – ukususa amafutha – ukugqoka – ukufudumala kusengaphambili – ukupholisa. Inqubo ngokuvamile izoba nezikhathi ezingu-2-4 kusukela ekumbozeni kuya enkambisweni yokupholisa, ngoba izikulufo ezine-dip coating ukuze kufinyelelwe ukujiya okuthile zidinga ukwenziwa izikhathi ezengeziwe.
Isakhiwo siphezu kwensimbi, simbozwe ungqimba lwesisombululo se-Dacromet (okungukuthi, siqukethe izikali ze-zinc, i-aluminium [izikali ngokuvamile zinobukhulu obungu-0.1-0.2X10-15 microns] i-Cr03 kanye ne-organic matter ekhethekile yesisombululo samanzi esixubile esisakazeka kakhulu), ngo-300 ° C noma ngaphezulu kokulondolozwa kokushisa okubhaka isikhathi esithile, uketshezi lwe-Dacromet ku-chromium ye-hexavalent luncishiswa lube yi-chromium ye-trivalent, okuholela kuma-compound chromate compound amorphous (nCr03) mCr203).
Ukumelana nokugqwala kuhle kakhulu. Usawoti ongathathi hlangothi ungafika emahoreni angama-300 noma ngaphezulu, ukungathandeki kokumboza akulingani, isikhundla esincane esingu-5-10um, isikhundla esijiyile esingu-40um noma ngaphezulu, kuzothinta ukujula kobubanzi besikulufu, ngakho-ke izikulufu zokuthepha zomshini nezikulufu ezinobubanzi obuncane bezikulufu kuhle kakhulu ukungasebenzisi inqubo ye-Dacromet njengokwelashwa kobuso.
Isikhathi sokuthunyelwe: Septhemba 18-2024
