Ukusetshenziswa kwe-Sodium Cyanide embonini ye-Electroplating

Ukufaka i-electroplating kuyinqubo ebalulekile embonini yokukhiqiza, ehilela ukufaka ungqimba oluncane lwensimbi phezu kobuso bensimbi ngokusebenzisa i-electrolysis. Le nqubo ayigcini nje ngokuthuthukisa ukumelana nokugqwala kwensimbi kodwa futhi ithuthukisa ukubukeka kwayo okuhle kanye nekhwalithi yobuso. I-Sodium cyanide , ikhemikhali enobuthi kakhulu kodwa eguquguqukayo, idlala indima ebalulekile embonini ye -Electroplating.

Izisekelo ze-Electroplating

I-Electroplating isekelwe kumgomo we-electrolysis. Ekusetheni i-electroplating, i-workpiece yensimbi okufanele ihlanganiswe yenziwe i-cathode, kuyilapho insimbi ezofakwa isetshenziswa njenge-anode. Kokubili i-cathode ne-anode zicwiliswa kusisombululo se-electrolyte esiqukethe ama-ion ensimbi ensimbi yokucwebeza. Lapho amandla kagesi edlula ku-electrolyte, ama-ion ensimbi esixazululweni akhangwa ku-cathode (i-workpiece) futhi abekwe phezu kwawo, enze ungqimba oluncane, olufana nensimbi yokucwenga.

Indima ye-Sodium Cyanide ku-Electroplating

I-Sodium cyanide (NaCN) isetshenziswa kabanzi ekufakeni i-electroplating njenge- Complexing Agent . Inamandla okwenza ama-complex azinzile ngama-ion ensimbi ahlukahlukene. Ngokuphathelene nokufaka i-electroplating, la ma-complex ensimbi ne-cyanide anezinzuzo eziningana:

1. Ikhwalithi Yokucwebezela Ethuthukisiwe : Izakhiwo zensimbi-cyanide ezakhiwe yi -Sodium Cyanide zisiza ekufinyeleleni ukufakwa kwensimbi okufanayo nokubushelelezi ebusweni bomsebenzi. Isibonelo, ekucwebezeleni nge-electroplating yethusi, i-complex yethusi-cyanide iqinisekisa ukuthi ama-ion ethusi afakwa ngokulinganayo, okuholela kungqimba yethusi oluqinile nolunamathelayo. Lokhu kubalulekile ekusetshenzisweni lapho ubuqotho besendlalelo esicwebezelayo bubalulekile, njengasembonini ye-elekthronikhi yezixhumi zokucwebezela.

2. Ukumbozwa Okuthuthukisiwe : Ukusetshenziswa kwe -sodium cyanide esixazululweni se-electrolyte kuthuthukisa amandla okuphonsa ebhavini lokumboza. Amandla okuphonsa abhekisela emandleni esixazululo sokumboza ukufaka ungqimba olufanayo lwensimbi esiqeshini somsebenzi, ngisho nasezingxenyeni ezibunjwe ngendlela eyinkimbinkimbi ezinezimbobo nezimbobo. Ama-complex ensimbi ne-cyanide angafinyelela ngempumelelo kuzo zonke izingxenye zesiqeshana somsebenzi, okuqinisekisa ukumbozwa okuphelele. Lokhu kuzuzisa kakhulu ezimbonini ezifana nezimoto, lapho izingxenye ezinejometri eziyinkimbinkimbi zidinga ukumbozwa ukuze kuvikelwe ukugqwala.

3. I-Stable Plating Bath : I-Sodium cyanide iyasiza ekugcineni ukuzinza kwe-electroplating bath. Ilawula ukugcwala kwama-ion ensimbi amahhala esixazululweni, ivimbela ukwakheka kwama-deposit ensimbi anganamatheli kahle noma asezingeni eliphansi. Ngokwakha ama-complexes azinzile, ivumela inqubo ye-electroplating elawulwa kakhudlwana futhi ehambisanayo.

Izicelo Eziqondile ze-Sodium Cyanide ku-Electroplating

1. Ukugoqwa Kwethusi : Ekugoqweni kwethusi nge-electroplating, i-Sodium cyanide isetshenziselwa ukwakha ama-complexes ethusi-cyanide. Lokhu kubaluleke kakhulu lapho kugoqwa kuma-substrate afana ne-zinc-alloy die-castings. Ama-Zinc-alloy die-castings asetshenziswa kabanzi ekukhiqizeni izinto zokuhlobisa, ama-zipper, kanye nezingxenye ezincane zemishini. Njengoba i-zinc-alloy isengozini yokugqwala ezixazululweni zokugoqwa kwe-acidic, inqubo yokugoqwa kwethusi esekelwe ku-cyanide ivame ukusetshenziswa njengesinyathelo sangaphambi kokugoqwa. Ingqimba yethusi efakwe kusetshenziswa i-electrolyte equkethe i-cyanide ivikela i-zinc-alloy substrate endaweni ene-acidic yezinqubo zokugoqwa ezilandelayo, njenge-nickel plating, futhi ithuthukisa nokunamathela kwengqimba ye-nickel.

2. I-Silver Plating : I-Sodium cyanide isetshenziswa futhi ekufakweni kwe-electrolyte ngesiliva. Ama-complex e-Silver-cyanide akhiwa ku-electrolyte, okwenza kube nokuthungwa kwesiliva okubushelelezi nokukhanyayo. Izinto ezifakwe isiliva zivame ukusetshenziswa embonini yobucwebe, ekukhiqizweni kwetafula, kanye nokuxhumana kukagesi. Ukusetshenziswa kwe-sodium cyanide ekufakweni kwe-electrolyte ngesiliva kuqinisekisa ukuqeda kwekhwalithi ephezulu, kanti ungqimba lwesiliva lunokukhanya okuhle kakhulu kanye nokumelana nokugqwala.

3. Ukugoqwa Kwezinki : Nakuba kuye kwenziwa imizamo yokuthuthukisa izinqubo zokugoqwa kwezinki okungeyona i-cyanide, kwezinye izimo, ukugoqwa kwe-zinc okusekelwe ku-cyanide kusasetshenziswa. Ama-complex e-zinc-cyanide akhiwe ngosizo lwe-sodium cyanide anikeza amandla amahle okuphonsa futhi avumela ukufakwa kwengqimba ye-zinc efanayo. Ukugoqwa kwezinki kusetshenziswa kabanzi ekuvikeleni ukugqwala kwezingxenye zensimbi nensimbi, njengasezimbonini zokwakha nezimoto.

Ukucatshangelwa Kwezokuphepha

Naphezu kwezinzuzo zayo eziningi ku-electroplating, i-sodium cyanide iyinto enobuthi kakhulu. Ikhipha igesi ye-hydrogen cyanide lapho ihlangana nama-asidi noma amanzi. Ngakho-ke, izinyathelo zokuphepha eziqinile kufanele zibe sezindaweni ze-electroplating ezisebenzisa i-sodium cyanide:

1. Ukuphathwa Nokugcinwa Okufanele : I-Sodium cyanide kufanele igcinwe endaweni ephephile, enomoya omuhle, kude nama-acid kanye nomswakama. Abasebenzi abaphatha i-sodium cyanide kumele baqeqeshwe ngezinqubo ezifanele zokuphatha, okuhlanganisa nokusebenzisa imishini yokuzivikela yomuntu siqu njengamagilavu, izibuko, kanye nokuvikela ukuphefumula.

2. Izinhlelo Zokuphendula Eziphuthumayo : Izitshalo zokufaka i-electroplating kufanele zibe nezinhlelo eziphelele zokuphendula eziphuthumayo uma kwenzeka kuchitheka ngengozi noma kukhishwa i-sodium cyanide. Lezi zinhlelo kufanele zihlanganise izinqubo zokususa indawo, ukunciphisa i-cyanide, kanye nokunikeza usizo lwezokwelapha kubasebenzi abathintekile.

3. Ukuvikelwa Kwemvelo : Amanzi angcolile avela ezinqubweni zokufaka i-electroplating aqukethe i-sodium cyanide kumele aphathwe kahle ukuze kususwe i-cyanide ngaphambi kokuba ikhishwe endaweni ezungezile. Izindlela zokwelapha zingase zihlanganise i-chemical oxidation, eguqula i-cyanide ibe yizakhi ezingalimazi kakhulu.

Sengiphetha, i-sodium cyanide idlala indima ebalulekile embonini ye-electroplating, ivumela ukukhiqizwa kwemikhiqizo enekhwalithi ephezulu, ehlala isikhathi eside, futhi ejabulisa ngobuhle. Kodwa-ke, ukusetshenziswa kwayo kufanele kulawulwe ngokucophelela ukuze kuqinisekiswe ukuphepha kwabasebenzi kanye nokuvikelwa kwemvelo. Njengoba ubuchwepheshe buthuthuka, kwenziwa imizamo yokuthuthukisa izinqubo ezihlukile, ezinobuthi obuncane bokwenza i-electroplating, kodwa okwamanje, i-sodium cyanide isalokhu iyingxenye ebalulekile ekusetshenzisweni kwe-electroplating.