
Okwu Mmalite
Electroplating bụ usoro ọrụ mmepụta ihe nke a na-ejikarị eme ihe nke gụnyere itinye obere oyi akwa nke ígwè n'elu ihe e ji eme ihe, nke a na-ejikarị eme ihe dịka nchekwa nchara, ime ka ọdịdị ya ka mma, na ime ka ihe ndị dị n'elu ihe ahụ ka mma. Sodium cyanide (NaCN), n'agbanyeghị na ọ na-egbu egbu nke ukwuu, na-arụ ọrụ dị mkpa n'ọtụtụ usoro electroplating. Isiokwu a na-akọwa ọrụ na mkpa Sodium cyanide dị na electroplating metal.
Njirimara kemịkalụ nke Sodium Cyanide dị mkpa maka Electroplating
Sodium cyanide bụ ngwakọta inorganic. Ọ bụ nke ukwuu soluble na mmiri, nke bụ isi ihe onwunwe maka ojiji na electroplating baths. N'ime mmiri mmiri mmiri, ọ na-ekewa n'ime ion sodium (Na+) na ion cyanide (CN-). ion cyanide dị mkpa karịsịa na electroplating n'ihi na ha nwere ọchịchọ siri ike ịmepụta ogige nwere ion ígwè.
Ọrụ na Electroplating Baths
Mgbagwoju anya na ion ọla
Otu n'ime ọrụ ndị bụ isi nke Sodium Cyanide na electroplating bụ ịmepụta ihe mgbagwoju anya metal-cyanide na ion metal dị na ngwọta plating. Dịka ọmụmaatụ, n'ime bat electroplating copper, sodium cyanide na-emeghachi omume na ion copper (site na nnu copper dị ka copper sulfate ma ọ bụ copper cyanide). ion cyanide na-ejikọta na ion copper iji mepụta ihe mgbagwoju anya copper-cyanide kwụsiri ike, dị ka Cu(CN)₂⁻ na Cu(CN)₃²⁻. Ihe mgbagwoju anya ndị a nwere nkwụsi ike dị iche iche na ihe ndị na-agbanwe agbanwe dabere na oke nke ion copper na ion cyanide na ngwọta ahụ. Nhazi nke ihe mgbagwoju anya ndị a dị oke mkpa n'ihi na ọ na-emetụta omume nke ion metal n'oge usoro electroplating.
Mbelata Anode Polarization
N'ime cell electroplating, anode bụ isi iyi nke ion metal maka ntinye na cathode (a na-agbanye mkpụrụ ahụ). Anode polarization nwere ike ime mgbe elu anode na-ekpuchi ya na oyi akwa nke ngwaahịa mmeghachi omume ma ọ bụ mgbe ọnụọgụ nke mgbasa nke ígwè sitere na anode adịghị ezu iji nọgide na-enwe ions ígwè mgbe nile na ngwọta. Sodium cyanide na-enyere aka belata anode polarization. ion cyanide na ngwọta na-emeghachi omume na ígwè dị n'elu anode, na-eme ka mgbaze nke metal anode. Dị ka ihe atụ, na anode ọla kọpa, ion cyanide na-eji atom ọla kọpa emeghachi omume iji mepụta ogige ọla kọpa-cyanide soluble, bụ́ nke na-abanyezi na ngwọta ya. Nke a na-eme ka nhazi nke ion metal na-aga n'ihu na-aga n'ihu site na anode, na-eduga n'ịkwụsi ike ma dị irè usoro electroplating.
Ịkwụsị Ngwọta Electroplating
Sodium cyanide na-enyekwa aka na nkwụsi ike nke ngwọta electroplating. ion metal na ngwọta nwere ike imeghachi omume na ihe ndị ọzọ dị na bat ahụ, dị ka adịghị ọcha ma ọ bụ mmiri, iji mepụta ọnyà ma ọ bụ nweta mmeghachi omume akụkụ achọghị. Nhazi nke mgbagwoju metal-cyanide na-eme ka ion ígwè guzosie ike, na-egbochi ha isonye na mmeghachi omume ndị a na-adịghị mma. Dịka ọmụmaatụ, ogige ọla kọpa-cyanide nke emere n'ihu sodium cyanide kwụsiri ike karịa ion ọla kọpa efu, na-ebelata ohere nke mmiri ozuzo ọla kọpa hydroxide na bat electroplating alkaline.
Ịkwalite Cathode Polarization
Na cathode, ebe a na-ebelata ion ígwè ma tinye ya na mkpụrụ osisi, ezigbo polarization dị mkpa maka ịnweta mkpuchi metal dị nro na nke na-ejikọta ya. Sodium cyanide na-akwalite mmepụta nke cathode. Ihe mgbagwoju nke metal-cyanide dị oke ibu ma nwee ụfọdụ ụgwọ delocalization n'ihi nhazi na ion cyanide. Ka ogige ndị a na-abịaru nso na cathode, a na-achịkwa usoro nbelata nke ukwuu ma e jiri ya tụnyere mbelata ion metal free. Nke a na-ebute ntinye n'otu n'otu nke igwe ahụ na elu cathode. Mgbasawanye nke cathode polarization na-eduga n'obere kristal dị ntakịrị n'oge usoro ntinye, na-ebute mkpuchi metal mara mma na nke dabara nke ọma yana nrapanye ka mma na mkpụrụ.
Ngwa n'ime usoro ịgbanye igwe dị iche iche
Ọla kọpa
Na ọla kọpa electroplating, a na-eji sodium cyanide eme ihe n'ọtụtụ ebe, karịsịa na ngwa ebe a na-achọ ihe nkwụnye ọla kọpa dị elu nke dị elu. Ebe ịsa ahụ na-asa ọla kọpa nke Cyanide na-enye ike ịtụba ihe dị mma, nke pụtara na ha nwere ike idowe otu oyi akwa ọla kọpa n'ihe ndị nwere ụdị mgbagwoju anya. Ihe mgbagwoju ọla kọpa-cyanide nke e guzobere n'ihu sodium cyanide na-enye ohere ijikwa ọnụ ọgụgụ nke ọla kọpa nke ọma, na-eme ka ọ bụrụ ọla kọpa dị nro ma na-egbuke egbuke. Nke a na-eme ka ọ dị mma maka ngwa ndị dị ka ịkwanye ihe ịchọ mma na ọla, njikọ ọkụ eletrik, na bọọdụ sekit e biri ebi.
Plating Silver
Sodium cyanide bụkwa ihe dị mkpa na bath electroplating silver. Dị ka ihe mkpuchi ọla kọpa, ion cyanide na-etolite ogige ọlaọcha-cyanide kwụsiri ike. Ụlọ ndị a na-enyere aka n'inweta mkpuchi ọlaọcha na-egbuke egbuke, dị nro na nke na-ejikọta ya. A na-ejikarị plasta ọlaọcha na baths nke cyanide na-emepụta ihe na-emepụta ihe ndị dị na tebụl, ihe ịchọ mma, na kọntaktị eletrik, ebe a na-achọsi ike dị elu na nkwụsị corrosion nke ọlaọcha.
Tingtọ ọla edo
Eletrịkị ọla edo na-ejikarị sodium cyanide emepụta ogige ọla edo-cyanide. Ojiji nke sodium cyanide n'ime ebe ịsa akwa ọla edo na-enye ohere maka itinye akwa ọla edo dị gịrịgịrị, na-edobe nke nwere ezigbo mmachi. A na-eji ọla edo edo edo na ụlọ ọrụ eletrọnịkị maka ihe ndị dị ka njikọ na kọntaktị iji melite conductivity eletrik na igbochi corrosion. A na-ejikwa ya na ụlọ ọrụ ịchọ mma maka ihe ịchọ mma. Ikike ijikwa usoro nkwụnye ego kpọmkwem site na iji sodium cyanide dabeere na baths na-eme ka o doo anya na mkpuchi ọla edo nwere ihe ndị a chọrọ, dị ka agba, ike na ịdịte aka.
Ntụle Nchekwa
Ọ dị mkpa iburu n'obi na sodium cyanide bụ ihe na-egbu egbu. Ikuku ume, iri nri, ma ọ bụ mmetụ akpụkpọ ahụ na sodium cyanide ma ọ bụ ihe ngwọta ya nwere ike ịnwụ. Ọ nwekwara ike meghachi omume na acids iji mepụta gas hydrogen cyanide na-egbu egbu nke ukwuu. Ya mere, a ghaghị ịgbaso ụkpụrụ nchekwa siri ike mgbe ị na-ejikwa sodium cyanide na ọrụ electroplating. Ekwesịrị inye ndị ọrụ ọzụzụ kwesịrị ekwesị maka njikwa kemịkalụ a nke ọma, gụnyere iji ngwa nchekwa nkeonwe kwesịrị ekwesị dị ka uwe aka, enyo enyo, na nchekwa iku ume. Ụlọ ọrụ eletrọnịkị ga-enwerịrị ebe ọrụ ventilashị nke ọma yana atụmatụ mmeghachi omume mberede n'ọnọdụ nke mwụfu ma ọ bụ mkpughe na mberede. Na mgbakwunye, a ga-emerịrị mkpofu mkpofu sodium cyanide nwere n'ụzọ kwekọrọ n'ụkpụrụ gburugburu ebe obibi siri ike iji gbochie mmetọ nke isi mmiri yana mebie ndụ mmiri.
mmechi
Sodium cyanide na-arụ ọtụtụ ọrụ dị mkpa na usoro electroplating metal. Ikike ya imepụta ogige metal-cyanide, belata polarization anode, mee ka ngwọta electroplating kwụsie ike, na ịkwalite polarization cathode na-eme ka ọ bụrụ ihe bara uru n'inweta mkpuchi ọla dị elu. Otú ọ dị, n'ihi oke nsi ya, njikwa na iji sodium cyanide eme ihe na electroplating dị ezigbo mkpa. Ka nkà na ụzụ na-aga n'ihu, a na-agbakwa mbọ ịmepụta usoro ndị ọzọ, nke na-adịghị egbu egbu maka electroplating, ma ugbu a, sodium cyanide na-anọgide na-abụ isi ihe n'ime ọtụtụ ngwa electroplating ụlọ ọrụ.
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