Izikulufu ezivame ukusetshenziswa izinqubo zokwelapha surface kukhonai-oxidation, i-electrophoresis, i-electroplating, i-Dacromet izigaba ezine, okulandelayo ngokuyinhloko isikulufu theumbala yokwelashwa okungaphezulu kwesifinyezo sokuhlukaniswa.
- Emnyama i-oxide:
Ihlukaniswe yaba mnyama ekamelweni lokushisa kanye nezinga lokushisa eliphakeme libe mnyama, kuya ekamelweni lokushisa libe mnyama njengesibonelo senqubo: ukususwa kwamakhemikhali - ukugeza amanzi ashisayo - ukugeza kwamanzi abandayo - ukukhishwa kokugqwala kanye nokukhipha i-asidi - ukuhlanza - ukumnyama - ukuhlanza -Ophezu kwamafutha noma kuvalwe kakhulu. Iwungqimba lwefilimu ye-oxide eyakhiwe i-sodium hydroxide ne-sodium nitrite ekushiseni okuphezulu okungaphezu kwamadigri ayi-100.
Ingxenye eyinhloko yefilimu ye-oxide yi-iron tetraoxide (Fe3C4), ukufana kwefilimu kungu-0.6-1.5um kuphela, ukumelana nokugqwala kubi kakhulu, esimweni sokungabi ngaphezu kwamafutha noma kuvaliwe usawoti ongathathi hlangothi amahora angu-1-2 noma ngaphezulu, phezu kwamafutha ngamahora angu-3-4 noma ngaphezulu. Imishini emincane ayisebenzisi le nqubo okwamanje izikulufu. Ihlukile ekubukeni kombala, i-oxide emnyama ne-zinc emnyama kanye ne-electrophoretic black close, kodwa hhayi ngokugqama njenge-zinc emnyama nombala omnyama we-electrophoretic.
- I-Galvanize:
I-electroplating emnyama inezinhlobo ezimbili ze-zinc emnyama ne-nickel emnyama, isimiso senqubo ngokuyisisekelo siyafana, kuphela ukwakhiwa kwesisombululo se-electroplating kanye nokwelashwa kwangemuva nge-lattice ehlukene noma isixazululo se-passivation. I-Zinc iyasebenza ngamakhemikhali, kulula ukuyikhipha futhi ibe mnyama emkhathini, futhi ekugcineni ikhiqize ukugqwala 'okumhlophe', i-zinc plating ngemva kokwelashwa kwe-chromate ukuze imboze ungqimba lwezinc efilimu yokuguqulwa kwamakhemikhali, ukuze insimbi esebenzayo ibe sesimweni sokungenzi lutho, kungukudlula ungqimba lwezinc. Ifilimu ye-passivation evela ekubukeni ingahlukaniswa ibe yi-passivation emhlophe (i-zinc emhlophe), eluhlaza okwesibhakabhaka (i-zinc eluhlaza okwesibhakabhaka), i-passivation emnyama (i-zinc emnyama), i-passivation yezempi eluhlaza (i-zinc eluhlaza) njalonjalo.
- Electrophoresis Black:
Ukwamukela indlela ye-electrochemical yokufaka izinhlayiya ze-colloidal ze-organic resin ezingxenyeni ukuze zenze ungqimba lwe-organic coating lwemibala ehlukahlukene, i-electrophoresis emnyama isetshenziswa kakhulu embonini, thatha inqubo emnyama njengesibonelo: i-degreasing-cleaning-phosphating-electrophoresis paint-drying. Ingahlukaniswa i-anodic electrophoresis (i-resin ionization ibe yi-ion engalungile) kanye ne-cathodic electrophoresis (i-resin electrophoresis ibe yi-ion enhle), futhi inqubo yopende uma iqhathaniswa nokusebenza kokwakhiwa kuhle, ukungcola kanye nokulimala kwemvelo ukuze kuncishiswe ukumelana kwayo nokusebenza kwesifutho sikasawoti okungathathi hlangothi emahoreni angu-300 noma ngaphezulu, izindleko nokumelana nokugqwala kanye nenqubo ye-Dacromet iyafana.
- Zinc emhlophe:
Inqubo ye-Electroplating yilena: ukwehlisa - ukuhlanza - ukusebenzisa i-asidi ebuthakathaka - i-electroplating zinc - ukuhlanza - izinwele ezimhlophe ezidlulayo - ukuhlanza - ukomisa, futhi umehluko we-zinc omnyama awukho umehluko we-Over lat rack kanye nesixazululo se-passivation, i-passivation emhlophe ifilimu ye-zinc oxide engenambala engenambala, cishe ayinayo i-chromium, ngakho-ke ukubola kokubola okuhlobene nombala we-zinc ompofu, imboni ye-zinc impofu, i-zinc eluhlaza okwesibhakabhaka isezingeni eliphansi Amahora angu-6-12, kukhona lo mkhiqizi we-plating ngokwenza ngcono ukunemba kwesilinganiso sesisombululo se-passivation singenziwa ukumelana nesifutho sikasawoti esingathathi hlangothi cishe amahora angu-20.
Ngenxa yohlobo olumhlophe lwe-zinc Plating izikulufu zenqubo yokwelapha yokwenziwa kokuhlolwa kwesifutho sikasawoti okungathathi hlangothi ekuqaleni kwavela ebusweni be-plating ukugqwala okumhlophe, ukugqwala okubomvu kwenzeka emahoreni angaba ngu-40, ngakho ukumelana nokugqwala kwe-zinc kungcono kune-nickel emhlophe. Ukubukeka ne-nickel emhlophe uma kuqhathaniswa ne-zinc emnyama, emhlophe yombala wokuqala we-zinc eluhlaza-mhlophe, kanye ne-nickel emhlophe uma kuqhathaniswa nomehluko omkhulu.
- I-Nickel Emhlophe:
Inqubo yokucwenga iwukuthi: ukususa amafutha - ukuhlanza - ukwenza kusebenze i-asidi ebuthakathaka - ukuhlanza - i-copper bottom - ukwenza kusebenze - ukuhlanza - i-electroplating nickel- Ukuhlanza - passivation - ukuhlanza - ukomisa - noma ukuvala, futhi inqubo ye-nickel emnyama iyafana, ikakhulukazi ifomula yesisombululo se-plating ihlukile, i-zinc sulfide encane kanye nokujoyina.I-Nickel iwukubukeka kwesiliva-mhlophe okuphuzi, kuzohlanganisa insimbi ye-nick ekhanyayo, ephuzi ngokugqamile. Ukumelana nokugqwala kwayo kanye ne-nickel emnyama akuwona umehluko omkhulu amahora angu-6-12, inqubo yabakhiqizi abajwayelekile izophinde ibe phezu kwamafutha noma ivaliwe, njengokucabangela umthelela wokugqwala ezingxenyeni zepulasitiki zezinto ezingenayo kufanele zisetshenziswe njengokugxila ekulawuleni noma cha phezu kwamafutha.
- I-zinc eluhlaza okwesibhakabhaka, i-zinc eluhlaza:
Inqubo icishe ifane neye-zinc emhlophe, i-zinc eluhlaza okwesibhakabhaka i-passivated zinc oxide film iqukethe u-0.5-0.6mg/dm2 we-chromium eyi-trivalent. I-Green passivation, eyaziwa nangokuthi i-acid passivation emihlanu, ingathola ifilimu ewugqinsi enotshani obuluhlaza, isixazululo se-passivation siqukethe i-phosphate ions, ifilimu ecwebezelayo enotshani obuluhlaza iyifilimu evikelayo eyinkimbinkimbi, enesakhiwo eyinkimbinkimbi yama-chromates nama-phosphates.
Ngokumelana nokugqwala kwayo, i-zinc eluhlaza okwesibhakabhaka ingcono kunezinc emhlophe, kanti i-zinc eluhlaza ingcono kunezinc eluhlaza okwesibhakabhaka. Umbala we-zinc eluhlaza okwesibhakabhaka kancane okwesibhakabhaka kanye ne-zinc emhlophe isondelene nemboni ukusebenzisa okuningi, lokhu kungasetshenziswa futhi njengomklamo womkhiqizo lapho inqubo ehlukile yezikulufi.
- I-zinc enameled (chemistry):
Esigabeni se-galvanizing yenqubo ye-zinc enombala ihle kakhulu ukumelana nokugqwala, inqubo yayo yokuguqula umbala ithi: i-galvanizing - ukuhlanza - u-2% - 3% we-nitric acid ngaphandle kokukhanya - ukuhlanza - i-chromium ephansi ye-passivation enemibala - ukuhlanza -Ukubhaka ukuguga. Izinga lokushisa le-passivation liphansi kakhulu, ifilimu ihamba kancane, ifilimu eliphaphathekile lincane. Ukushisa okuphezulu, ifilimu iminyene futhi ikhululekile, ayinamathele ngokuqinile. Kungcono ukulawula cishe ama-degree angu-25 ukuze uqinisekise ukuthi umbala ofanayo utholakala phakathi nenkathi ethile yesikhathi.
Ngemuva kokudlula, kufanele ibhakwe futhi iguge ukuze kuthuthukiswe ukumelana nokunamathela nokugqwala kwefilimu. Faka umbala izikulufi ze-zinc-plated ngokuthinta phansi kokumelana nesifutho sikasawoti esingathathi hlangothi emahoreni angaphezu kuka-48, ukulawula okuhle kungenziwa ngaphezu kwamahora angu-100.
- I-Dacromet:
Isifinyezo nokuhunyushwa kwe-DACROMET, okungukuthi i-zinc-based chromium salt protective coating, ebizwa nangokuthi i-zinc-aluminium coating. Inqubo eyisisekelo yilena: ukwehlisa - ukwehlisa - ukugcoba - ukushisa kuqala - ukucwilisa - ukupholisa. Inqubo ngokuvamile izoba nezikhathi ezingu-2-4 kusukela ekuhlanganisweni kuya enqubweni yokupholisa, ngoba izikulufi ezine-dip coating ezifana nokuzuza ukujiya okuthile zidinga ukwenziwa izikhathi eziningi.
Isakhiwo siphezu kwensimbi, embozwe ungqimba lwesixazululo se-Dacromet (okungukuthi, esiqukethe izikali ze-zinc, i-aluminium [izikali ngokuvamile zisayizi wama-microns angu-0.1-0.2X10-15] Cr03 kanye ne-organic matter ekhethekile yesisombululo samanzi esihlakazeka kakhulu esihlakazeka kakhulu), ngo-300 ° C noma ngakho ukugcinwa kokushisa ukubhaka isikhathi esithile se-Dacrovalent inchrovalent liquid inchrovalent. i-chromium, okuholela ekuhlanganiseni kwe-amorphous composite chromate (nCr03) mCr203).
Ukumelana nokugqwala kuhle kakhulu usawoti ongathathi hlangothi kuze kufike emahoreni angu-300 noma ngaphezulu, ukungasebenzi kwe-coating akuyona iyunifomu, indawo encane ye-5-10um, isikhundla esiwugqinsi se-40um noma ngaphezulu, sizothinta ukujula kwe-screw diameter, ngakho-ke umshini wokudonsa izikulufa nezikulufa ezinobubanzi obuncane bezikulufa kuhle kakhulu ukungasebenzisi inqubo ye-Dacromet njengokwelashwa kwendawo.
Isikhathi sokuthumela: Sep-18-2024
