Yiziphi izinqubo zokwelashwa ezijwayelekile zokwelashwa?

Inqubo yokwakha ungqimba olungaphezulu ebusweni bezinto ezisezingeni eliphansi ezihlukile kusuka ku-substrate ngokuya ngezimpawu zayo zemishini, zomzimba, kanye namakhemikhali kwaziwa njengokuphathwa komhlaba. Ukwelashwa okungaphezulu kusetshenziselwa ukwanelisa ukucaciswa kwezinto ezifana nokumelana nokugqwala komkhiqizo, ukugqoka kokugqoka, kanye nama-aesthetics.

Ngaphezu kwenqubo eyinhloko, ukumelana nokugqwala nokubukeka kombala kufanele kubhekwe ngenkathi ukhetha izikulufa. Ingomaneisikulufu, izinqubo zokwelashwa ezingaphezulu komhlaba njenge-oxidation, electrophoresis, electroplating, Dacromet, kanti ezinye zisetshenziswa kaningi.

Ngokusho kombala ongaphezulu wesikulufa, kungahlukaniswa ngezigaba ezilandelayo:

Izikulufo ezimnyama ze-Black Plated

Mnyama ojwayelekileisikulufuNgokuyinhloko faka ukwelashwa kwe-oxidation emnyama, i-electroplating, ne-electrophoresis.

Ukwelashwa nge-oxidation emnyama

Ukwelashwa kwe-oxidation emnyama kuyindlela ejwayelekile yokwelashwa komhlaba wamakhemikhali, inhloso ukukhiqiza ifilimu le-oxide endaweni yensimbi ukuhlukanisa umoya futhi ivikele ukugqwala.

Le nqubo ukusebenzisa i-oxidant eqinile ku-oxidize ingaphezulu lensimbi ibe yi-oxide ebumnyene futhi ebushelelezi. Le ungqimba omncane we-Ferroferric oxide ingavikela ngempumelelo ingaphakathi lensimbi kwi-oxidation. Ihlukaniswe ngamazinga okushisa aphansi kanye nokushisa okuphezulu.

I-Ferroferric oxide eyakhiwe emazingeni okushisa aphansi (cishe ama-350 ° C) imnyama emnyama, eyaziwa nangokuthi abe mnyama. I-Ferroferric oxide eyakhiwe nge-oxidation emazingeni okushisa aphezulu (cishe ama-550 ° C) isibhakabhaka okwesibhakabhaka, esaziwa nangokuthi ukwelashwa okufiphele. Ukwelashwa okuluhlaza okwesibhakabhaka kuvame ukusetshenziswa ekukhiqizeni izikhali, futhi ukwelashwa okumnyama kuvame ukusetshenziswa ekukhiqizeni kwezimboni.

Uxeitize indawo ensimbi kuya emnyama, i-axide ye-Ferroferic abushelelezi idinga i-oxidant eqinile. I-oxidant eqinile yakhiwa nge-sodium hydroxide, i-sodium nitrite, ne-trisodium phosphate. Lapho ijika okwesibhakabhaka, phatha insimbi nge-oxidant eqinile incibilike, futhi uma iphenduka imnyama, yenze ngesisombululo esinamanzi se-oxidant eqinile.

I-Electroplating

I-ElectroPlating inqubo yokusebenzisa i-electrolysis ukubopha ungqimba lwamanye amafilimu wensimbi noma amafilimu we-alloy endaweni yensimbi. Inhloso ukwenza ngcono ukumelana kokugqoka, ukumelana nokugqwala, kanye nama-aesthetics.

Kunezinhlobo ezi-2 zokufaka i-black plating: Plating Black Zinc kanye ne-Black Nickel Plating.

Izikulufa ezimnyama ze-zinc zigcwele

I-Black Zinc Plating uhlobo lokucutshungulwa kwe-anti-oxidation lwensimbi, olufanele imikhiqizo yehadiwe. I-zinc isebenza ngamakhemikhali futhi i-oxid kalula futhi ibe mnyama emkhathini. Ngemuva kwe-Galvaning, iphathwa nge-chromate ukumboza ifilimu lokuguqula amakhemikhali ku-zinc, ukuze insimbi esebenzayo isesimweni sokungenisa, okuyindlela yokuhamba ye-zinc ungqimba. Ifilimu lokudlula lingahlukaniswa lize libe ne-White Prastivation (i-zinc emhlophe), ukukhanya okuluhlaza okwesibhakabhaka (i-zinc eluhlaza okwesibhakabhaka (i-zinc emnyama (i-zinc emnyama (i-zinc eluhlaza (i-zinc eluhlaza (i-green zinc), njll.

Imvamisa, inqubo ye-electroplating zinc emnyama yokuhlanza - ukuhlanza amandla-electro-gal-galvaning-galvaning-clealing-crowing-sokulungiswa

Izikulufa ezimnyama ze-nickel plated

Imvamisa, inqubo ye-Electroplating Nickel Black Nickel iyahlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza

I-Black Nickel Coating etholakala kubhavu elimnyama le-nickel liqukethe ama-nickel angama-40-60% ama-nickel, ama-10-30% zinc, 10-15% isibabule, futhi cishe ngo-10% udaba lwe-organic. Umbala omnyama ubangelwa ukuba khona kweBlack Nickel Sulfide ku-Coating ngenxa yokuncishiswa kwe-Thiocyatate eCathkode ukukhipha i-sulfide ion. I-Copper phansi yengezwa kule nqubo, futhi umsebenzi oyinhloko ukwenza ukuba kube lula ukugcwala kwe-nickel kwinqubo yokuthumela kanye nokwenza ngcono ukumelana nokugqwala kwesikulufa.

I-electrophoresis

I-electrophoresis ibhekisa emcimbini lapho izinhlayiya ezikhokhisiwe ziqhubekela ezinhlakeni ze-electrodes zezindawo zikagesi ezingafani nesenzo sensimu kagesi.

I-Black Electrophoresis ukusetshenziswa kwensimu kagesi yangaphandle ukwenza izinhlayiya ezinjengezimbobo kanye nemikhawulo emiswe ku-electrophoresis ngokuqinile kufudunyeke nge-electrophoresis ye-electrodes. I-electrophoretic Black isetshenziswa kabanzi embonini, ithatha inqubo emnyama njengesibonelo: Ukuhlanza - Ukuhlanza - I-Phosphating - Ukomiswa ngopende we-electrophoretic - ukomisa. Ingahlukaniswa nge-anodic electrophoresis (i-resin iba ngama-ion amabi ngemuva kwe-ionization) kanye ne-cathodic electrophoresis (i-resin iba yi-ions ama-ions amahle ngemuva kwe-electrophoresis). Uma kuqhathaniswa nenqubo yokupenda, inokusebenza okungcono kokwakha, ukungcoliswa okuncane nokulimaza imvelo nokumelana kwayo kwesifutho sikasawoti esingathathi hlangothi kungamahora angama-300 noma ngaphezulu, futhi izindleko zokugqwala kanye nokuqina kwezindleko zifana nalezo zenqubo ye-DACROMET.

Izikulufo ezimhlophe ze-Pur

Izikulufo ezimhlophe ezijwayelekile ikakhulukazi zifaka i-electroplating auckel emhlophe, i-zinc emhlophe, nokunye.

I-Electroplating White Zic

Izikulufa ezimhlophe ze-zinc zigcwele

Inqubo ye-electroplating zinc i-zinc emhlophe yokuhlanza - i-actiming-electron-galvanizing-galvanizing-cleraning-cleraning-cleraning-clealing-clearing-creaning-soming-somiswa. Umehluko kusuka ku-zinc emnyama ukuthi alukho upende wokubekwa uphawu ngokweqile, futhi isixazululo sokudlula futhi sehlukile. I-White Passivation iyifilimu engenamibala futhi esobala ye-zinc onide equkethe cishe i-chromium, ngakho-ke ukumelana nokugqwala kubi ukwedlula lokho kwe-zinc emnyama, i-zinc eluhlaza okwesibhakabhaka ne-zinc.

Ukuphikiswa kokugqwala kwe-zinc emhlophe kungcono kunalokho kwe-nickel emhlophe, futhi ukubukeka kwayo kuba mnyama ukwedlula leyo ye-nickel emhlophe.

I-Electroplating White Nickel

Izikulufa ezimhlophe ze-nickel plated

Inqubo ye-Electroplating White Nickel iyahlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuhlanza - Ukuqala. Inqubo ye-Electroplating Nickel Nickel kanye ne-Electroplating Black Nickel ngokufanayo, umehluko ulele kwifomula yesisombululo se-electroplating, ngaphandle kokufakwa kwe-zinc sulfide.

Ezinye izikulufa ezinemibala

Umbala we-platedisikulufu

I-plating yeminye imibala ikakhulukazi ifaka i-zinc eluhlaza okwesibhakabhaka, i-zinc eluhlaza, i-zinc enemibala, ne-dacromet.

Inqubo ye-electroplating ye-zinc eluhlaza okwesibhakabhaka ne-green zinc icishe ifane naleyo ye-zinc emhlophe. I-Blue Zic i-zinc oxide ye-zinc opwidi ephethe u-0.5-0.6 mg / dm2 we-chromium ye-trivallent. Ukujikeleza okuluhlaza kungenxa yokuthi isixazululo sokuphambuka siqukethe i-phosphate ion, futhi ifilimu eluhlaza ephumayo yakhiwa i-chromate ne-phosphate.

Ukumelana nokugqwala kwe-zinc eluhlaza okwesibhakabhaka kungcono kunalokho kwe-zinc emhlophe, futhi ukumelana nokugqwala kwe-zinc eluhlaza kungcono kunaleyo ye-zinc eluhlaza okwesibhakabhaka.

Umbala zinc unokumelana kahle nokugqwala. Inqubo yokuhamba i-PASTIONS yile: Ukuhlanza - 2% -3% i-nitric acid ukuze i-Emit Light - Ukuhlanza - Ukuhamba kombala ophansi - Ukuhlanza Ukuhamba Kombala. Izinga lokushisa eliphansi kakhulu ngesikhathi sokuphambuka lizoholela ekwakhekeni kwamafilimu kancane kanye nefilimu elinemibala emincane. Izinga lokushisa eliphakeme lizodala ukuthi ifilimu ibe nye futhi ikhulule, futhi ukunamathela ngeke kube namandla. Kuhle ukulawula ama-degree angama-25 ukuqinisekisa ukuthi uthola umbala ofanayo wesikhathi esithile. Ngemuva kokuphambuka, kudinga ukubhaka ukuthuthukisa ukumelana nokugqwala kwefilimu.

I-DACROMET

I-DACROMET uhlelo olusha lokuhlanganisa ukugcotshwa kwe-anti-cormosion nge-zinc powder, i-aluminium powder, i-chromic acid, namanzi e-deionized njengezakhi eziphambili. Ukugeleza kwenqubo yi-Organic Solvent Degreesing - I-Mechan Polishing - Ukufafaza - Ukubhaka - Ukufafaza Kwamabili - Ukubhaka - Ukomisa.

Inzuzo yenqubo ye-DACROMET ukuthi ukumelana nokugqwala kuhle kakhulu, kepha ukungahambi kahle ukuthi ukuhlanganiswa akuwona umfaniswano.

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