I-Electro-less nickel plating: Konke Odinga Ukukwazi
Isibuyekezo sokugcina 08/31, isikhathi sokufunda esilinganiselwe: 6 imiz
Izingxenye ezine-Electroless nickel plating
I-Nickel iyinsimbi yesihlanu evame ukutholakala emhlabeni, enokubukeka okucwebezelayo, ukuqina okuhle kakhulu, kanye nezakhiwo ezivimbela ukugqwala, okuyenza ibe ilungele ukumbozwa kokuvikela ezindaweni ezingaphezulu kwezinye izinto.Ngenxa yalokho, i-Nickel iyindlela engcono kakhulu yokufaka izinsimbi ezihlukahlukene ezifanai-aluminium, insimbi, ithusi, i-tungsten, i-polymer, nokunye okuningi.I-Electroless Nickel Platingiyinqubo ethandwayo yokucwenga ngamakhemikhali evela kwisixazululo esiqukethe i-Nickel, i-sulfate, i-phosphate, ne-carbolic acid.Lezi zixazululo zixutshwe futhi zishiswe ngaphambi kokuqhubeka nokucwenga.Le nqubo isetshenziswe embonini yokukhiqiza iminyaka engaphezu kwengu-50, ngakho-ke ungacabanga ukuthi idume kangakanani kuyoizicelo zokuqeda phezulu.
Izixazululo ezisetshenziswa ku-Electroless Nickel Plating
Kunezixazululo ezihlukahlukene zamakhemikhali ezisetshenziselwa i-electroless nickel plating.Masiqonde ngayinye yazo ngokusebenzisa ithebula lokufunda lokuqhathanisa elingezansi;
SN | Amakhemikhali
| Iqhaza | Izibonelo
|
1 | Usawoti oncibilikayo we-Nickel
| Iyancishiswa futhi ifakwe phezu kwento ezogcotshwa(substrate)
| Nickel chloride (NiCl₂), Nickel Sulfate (NiSO₄) |
2 | I-ejenti yokunciphisa
| Ithola oxidized ngokunciphisa ion metal.
| I-Formaldehyde(CH 2 O ), i-Hypophosphite
|
3 | I-ejenti ye-complexion
| Thuthukisa ikhwalithi ye-nickel deposition
| I-Fluorides, i-glycinates, i-succinate
|
4 | Isiqinisi
| Vimbela ukubola kokugeza okucwebezelayo
| I-Thallium, i-calcium
|
5 | Ibhafa
| Lawula i-PH yokugeza okucwebezelayo ukuze uthole ukufakwa okuncane nokufana okufanayo kwe-Nickel
| I-sodium acetate, i-sodium hydroxide
|
Isebenza kanjani?
Isimiso sokusebenza
Lapha, i-electro-less isho ukuthi akukho okwamanje okusetshenziselwa inqubo yokucwenga.Esikhundleni salokho, i-ejenti yokunciphisa inikeza i-electron yokunciphisa i-ion yensimbi, okuholela emandleni okujikijela aphezulu.I-nickel ion (2e +) esixazululweni, ngenkathi isabela nge-ejenti yokunciphisa (2e-), faka i-Nickel ebusweni bento engaphansi.
Ni2+(kusuka esixazululweni sikasawoti we-nickel) +2e- (ku-ejenti Yokunciphisa) = Ni (engxenyeni engaphansi)
Izinyathelo ze-Electroless Nickel Plating
Isinyathelo 1: Ukulungiselela i-plating
Isinyathelo sokuqala siwukuhlanza izingxenye ezizogcotshwa ukuze noma yikuphi ukungcola, okunjengothuli, amafutha, ama-slags, ama-grease, nanoma yimaphi amakhemikhali angaphezulu, kulungiswe ukunamathela okuhle kakhulu kwe-nickel.Lapho kusetshenziswa khona izinto zokuhlanza ezifana ne-sulfuric acid ne-hydrochloric acid, igezwa ngamanzi acwengekile kubhavu oshisayo ukuze inciphise i-asidi futhi ivimbele ukuthi ingcolise indawo engaphezulu.
Isinyathelo sesi-2: Ukwelashwa endaweni yokugeza yokucwenga
Isitshalo sokwelapha se-electroless nickel plating
Ngemuva kokuhlanza izingxenye nokulungisa isisombululo sokugeza, inqubo yokugcoba ingaqala.Izingxenye manje sezicwiliswe kubhavu wokufaka i-nickel oqukethe amashaji avumayo.Izinto ezizogcotshwa ziheha ama-nickel ashajwe kahle ezindaweni zawo, okuholela kungqimba oluhle lokumboza.Ngenxa yokuthi i-electroless nickel plating ayidingi umthombo kagesi, izinga lokushisa lokugeza liwukulawula okuguquguqukayo okuyinhloko kule nqubo (70 kuya ku-90).0C kuyakhethwa).
Ugqinsi longqimba lwe-nickel olufakiwe luyahlukahluka phakathi kwama-microns angu-5 no-25 ngehora.Kodwa-ke, ngenxa yokuthi akukho okwamanje futhi kuyinqubo ye-autocatalytic plating, awukho umkhawulo onjalo ekugqimeni;njengoba isikhathi sokwelashwa sikhula, kanjalo nokuqina kwe-deposition.
Isinyathelo sesi-3: Ngemuva kokucubungula
Phakathi nesigaba sangemva kokucubungula, izinhlayiya nezinsalela ezinamathiselwe ziyasuswa ngokuhlanjululwa nge-asidi, i-alkali, nesisombululo se-surfactant.Khona-ke, ukuqedwa okwengeziwe, njengokupholisha, ukugcotshwa, nokunye, kusetshenziswa kuye ngezidingo.
Izinto Ezithonya Ku-Electroless Nickel Plating
Kunezici ezimbalwa ezithonya imiphumela ye-nickel electroless plating, okufanele ilawulwe ukuze kuzuzwe ikhwalithi yokuqedela edingekayo.
1. Ukungapheleli ebusweni
I-nickel plating ithintwa ukungapheleli okungaphezulu njengama-burrs, ama-slags, nokugqwala okwenziwe ngaphambili.Ngakho-ke umqondo ongcono kakhulu ukugcina lezi zinto engqondweni ngenkathi wenza imishini bese ususa amaphutha ngenqubo yokukhipha imali.
2. Ukuhlanzeka kwendawo
Ngaphambi kokuqhubeka ne-nickel plating, uthuli, amafutha, noma izinsipho ezakhiwe yi-saponification yamafutha ngesicoci se-alkaline kudingeka zisuswe.Uma ukuhlanzwa kwendawo kungenziwanga kahle, ungqimba lwe-Nickel lungase luxebuke noma lonakaliswe ngemva kwesikhathi esithile.
3. PH inani
Ukugcina inani le-PH kubalulekile ekufakeni okufanayo kwe-nickel kusetshenziswa indlela engenawo ugesi.Isikali se-PH kufanele sibe phakathi kuka-3.8 no-5. Esixazululweni, kulindeleke ukuthi i-pH ivame ukukhuphuka njengoba isikhathi sihamba, ngakho-ke izixazululo zokuzinzisa kanye ne-buffer kufanele zisetshenziswe ukuze kugcinwe i-PH izinzile kuyo yonke inqubo yokwelapha.
Njengoba i-PH ikhuphuka, kwakheka ama-ion e-hydroxide engeziwe, ahlangana nama-nickel ions akhe i-nickel hydroxide, enombala oluhlaza okhanyayo.
4. Ukuhlushwa kwe-nickel ion
Isixazululo sikasawoti esisetshenziswa endaweni yokwelapha umthombo we-nickel ion ofakwe endaweni engaphansi.Ngakho-ke, uma ukugxila kwe-nickel ion kuphansi, inqubo yokucwenga iba kancane.Kodwa-ke, ukugxila okuphezulu kakhulu kufakwa ngokushesha, kepha ukubekelwa phansi ngeke kufane.Ibanga elijwayelekile lokugxila kwe-nickel liphakathi20 kanye no-45 g / l.
5. Izinga lokushisa
Izinga lokushisa lokugeza lokwelashwa lidinga ukuba phakathi70 no900C.Njengoba izinga lokushisa likhuphuka, ezinye izingxenye ezinephunga elimnandi zezithasiselo zizohwamuka, okudinga isikhathi esengeziwe sokubeka.
Izinzuzo
Njengezinye izindlela zokucwebeza nokuqeda phezulu, inzuzo eyinhloko izingxenye ezimboziwe futhi imikhiqizo ikwazi ukumelana nokugqwala futhi imelane nemiphumela ebucayi yemvelo.Kodwa, ngaphandle kwalokho, i-electroless nickel plating inezinzuzo eziningi ezengeziwe.Ake sibheke ezinye izinzuzo ezibalulekile ngokuningiliziwe.
Izindleko eziphansi
Esinye sezici zezindleko endleleni yokuqeda ukucwenga izindleko zikagesi.Kodwa-ke, njengoba i-electroless nickel plating ingawudingi umthombo kagesi, kubiza kakhulu kunezinye izindlela, njenge-zinc plating.
I-uniform coating
I-electroless nickel plating iphumela ekuhlanganisweni okufanayo endaweni engaphansi.Izinga lokushisa, inani elingu-PH lokugeza okucwebezelayo, ukugcwala kwe-nickel ion, isikhathi sokwelashwa, nezinye izici eziningi zingalawulwa ukuze kuzuzwe ukushuba obufunekayo be-nickel plating.
Ukuvumelana kwe-Dimensional
Ngoba kuze kufike ku-5-micron plating ukujiya kuyafinyeleleka, akuthinti ukubekezelelana okudingekayo ezingxenyeni.
Ukuqina
Okuqukethwe kwe-phosphorus okugeza okugeza kuthonya ubulukhuni bezingxenye ezipuletiweyo.Amazinga aphansi e-phosphorus andisa ubulukhuni kuyilapho enciphisa ukumelana nokugqwala kongqimba lokucwenga.
Ukulungiswa kwendawo encane
I-electroless nickel plating nayo iyasiza ekulungiseni imifantu emincane endaweni engaphansi.Ngakho-ke, kungaba yinzuzo kakhulu ukufaka ama-plate nooks, ama-crannies, nezikhala eziyizimpumputhe ezinogqinsi olufanayo.
Ubuhle nezinye izinzuzo
Umbala ophuzi-omhlophe we-nickel plating unikeza ubuhle obukhangayo kumapathi nemikhiqizo.Ngaphezu kwalokho, ayiyinkimbinkimbi kangako.Ayidingi inqubo yokuhlunga eyinkimbinkimbi.Esimeni sanamuhla, imishini ezenzakalelayo iyatholakala embonini yokukhiqiza, okwenza kube lula ukulawula inqubo.
Izinhlelo zokusebenza
Inqubo ye-electroless nickel plating inikela ezimbonini ezahlukahlukene ukwenza izingxenye zazo zikwazi ukumelana nokugqwala futhi ziqine.Okulandelayo yizimboni ezibalulekile lapho kusetshenziswa i-nickel plating;
SN | Imboni | Izingxenye ezisebenzayo | Kwenzani? |
1 | I-Aerospace | ama-valve, ama-piston, ama-shafts enjini amboze indawo engaphezulu, izimbobo zenjini, ama-compressor blades, nezinye izinto ezibalulekile ekundizeni | Inokumelana nokugqwala okuhle kakhulu, ukumelana nokugqwala, ukumelana namakhemikhali, kanye nokuthambisa, okubalulekile ezingxenyeni ze-aerospace ezidinga ukunemba okuphezulu isikhathi eside. |
2 | Ezezimoto | Ama-piston, amasilinda, amagiya, amashafti, uhlelo lomjovo kaphethiloli, ama-rivets, ama-thrust transmitters, ama-knuckle pin, izindlu, nezinye izinto eziningi. | Nikeza isivikelo sokuguga kanye nokumelana nokugqwala |
3 | Izingxenyekazi zekhompuyutha | Izakhiwo zegumbi lokugeza, i-Doorknob, izibambo zePiping, nokunye okuningi. | Ukumelana nokugqwala |
4 | Ezogesi & Kagesi | Ukumboza imishini ehlukahlukene, osinki bokushisa, ama-hard drive disk, amabhodi wesekethe Aphrintiwe | Ukuvikelwa ekugqwaleni kanye nesichazi semvelo |
5 | Amafutha negesi | Amavalvu, amaphampu, izinsimbi zamapayipi, amathangi okugcina, nokunye | Ukuvikela ekugqwaleni nasekuchayekeni kwemvelo namakhemikhali. |
Isiphetho
I-Electroless nickel plating iyindlela eyingqayizivele yokuqeda indawo yezinto eziningi, okuhlanganisa insimbi, ithusi, ithusi, i-aluminium, ipulasitiki, nezinye eziningi.I-nickel plating ithuthukisa ukuqina ngokunikeza ukumelana nokugqwala okuhle kakhulu endaweni engaphansi.Ngaphezu kwalokho, ngenxa yokuthi i-Nickel inombala omhlophe ophuzi ngokuphuzi, inikeza ubuhle obukhangayo.Ngaphezu kwalokho, i-plating ingenziwa noma ngaphandle kwe-electrolysis, hlola umehluko phakathiI-Electroplating ne-Electro-less plating.
Ngenxa yokuthi kuningi ukusabela kwamakhemikhali kanye ne-catalytic kule nqubo, i-electroless nickel plating ingase idide abantu abaningi, ikakhulukazi labo abangenakho.ulwazi lochwepheshe lwe-chemistry yobunjiniyela.Nokho, laphaI-ProleanHub, onjiniyela bethu nochwepheshe basebenze kubuchwepheshe bokuqeda phezulu, okuhlanganisa i-electroless nickel plating, iminyaka engaphezu kweshumi.Ngakho-ke, bazokuqonda ukwakheka kwamakhemikhali okufanele nendlela yokubhekana nayo uma usuchaze izidingo zakho nezinhlelo zokusebenza.
Imibuzo Evame Ukubuzwa
Kuyini i-electroless nickel plating?
Ingenye yezindlela zokuqeda phezulu lapho ungqimba lwe-Nickel lufakwa ku-substrate ngokusebenzisa ukusabela kwamakhemikhali okwenza kube lula futhi ngaphandle kokusebenzisa ugesi.
Yiziphi izixazululo ezimbili eziyinhloko ezisetshenziswa ku-electroless nickel plating?
Isixazululo sikasawoti esiqukethe ama-nickel ions & I-ejenti yokunciphisa yizixazululo ezimbili zamakhemikhali ezisetshenziswa kule nqubo.
Yiziphi izinto ezisetshenziswa kakhulu ezinamekwe nge-electroless nickel plating?
Le ndlela ivame ukusetshenziselwa ukumboza insimbi ye-alloy, insimbi engagqwali, ithusi le-aluminium, ithusi, ithusi, namapulasitiki.
Yiziphi izici ezithinta ikhwalithi ye-nickel plating?
Izinga lokushisa kanye ne-PH yokugeza okucwebezelayo, isikhathi sokwelashwa, ukuhlanzeka kwendawo engaphansi, kanye nokugcwala kwe-nickel ion esixazululweni yizici eziyinhloko ezithonya umphumela wokucwebezelisa.
Isikhathi sokuthumela: Aug-05-2022