Izixhobo zedayimani ezifakwe ngombane zibandakanya iinkqubo ezininzi kwinkqubo yokuvelisa, nayiphi na inkqubo ayanelanga, iya kubangela ukuba uqweqwe luwe.
Isiphumo sonyango lwangaphambi kokufakelwa
Inkqubo yonyango lwe-matrix yentsimbi ngaphambi kokungena kwi-plate tank ibizwa ngokuba yi-pre-plating treatment. Unyango lwe-pre-plating luquka: ukupholisha ngoomatshini, ukususa ioyile, ukukhukuliseka kunye namanyathelo okuvula. Injongo yonyango lwe-pre-plating kukususa i-burr, ioyile, ifilimu ye-oxide, umhlwa kunye nolusu lwe-oxidation kumphezulu we-matrix, ukuze kuvezwe isinyithi se-matrix ukuze sikhule i-lattice yesinyithi ngokuqhelekileyo kwaye senze amandla okubopha phakathi kweemolekyuli.
Ukuba unyango lwangaphambi kokufaka ipleyiti alulunganga, umphezulu we-matrix unefilimu yeoyile encinci kakhulu kunye nefilimu ye-oxide, uphawu lwesinyithi lwesinyithi se-matrix alunakuvezwa ngokupheleleyo, nto leyo eya kuthintela ukwakheka kwesinyithi sokufaka ipleyiti kunye nesinyithi se-matrix, esiyindlela yokufakelwa koomatshini kuphela, amandla okubopha aphantsi. Ke ngoko, unyango olubi ngaphambi kokufaka ipleyiti yeyona nto iphambili yokuchitha ipleyiti.
Isiphumo seplating
Ifomyula yesisombululo sokugquma ichaphazela ngokuthe ngqo uhlobo, ubulukhuni kunye nokumelana nokuguguleka kwesinyithi sokugquma. Ngeeparamitha zenkqubo ezahlukeneyo, ubukhulu, uxinano kunye noxinzelelo lwekristali yesinyithi yokugquma nayo inokulawulwa.
Kwimveliso yezixhobo ze-electroplating zedayimani, uninzi lwabantu lusebenzisa i-nickel okanye i-nickel-cobalt alloy. Ngaphandle kwempembelelo yokungcola kwe-plating, izinto ezichaphazela ukuchitheka kwe-coating zezi:
(1) Impembelelo yoxinzelelo lwangaphakathi Uxinzelelo lwangaphakathi lwengubo luveliswa kwinkqubo yokuma kwe-electrode, kwaye izongezo kwi-wave enyibilikisiweyo kunye neemveliso zazo zokubola kunye ne-hydroxide ziya kwandisa uxinzelelo lwangaphakathi.
Uxinzelelo olukhulu lunokubangela amaqamza, ukuqhekeka nokuwa kwengubo ngexesha lokugcina nokusetyenziswa.
Kwi-nickel plating okanye i-nickel-cobalt alloy, uxinzelelo lwangaphakathi lwahlukile kakhulu, okukhona umxholo we-chloride uphezulu, kokukhona uxinzelelo lwangaphakathi lukhulu. Kwityuwa ephambili yesisombululo sokugquma se-nickel sulfate, uxinzelelo lwangaphakathi lwesisombululo sokugquma se-watt lungaphantsi kolo lwezinye isisombululo sokugquma. Ngokongeza i-organic luminent okanye i-agent yokuphelisa uxinzelelo, uxinzelelo lwangaphakathi olukhulu lwe-coating lunokuncipha kakhulu kwaye uxinzelelo lwangaphakathi oluncinci lunokwandiswa.
(2) Impembelelo yokuguquka kwe-hydrogen kuyo nayiphi na isisombululo se-plating, nokuba ixabiso layo le-PH lingakanani, kusoloko kukho inani elithile lee-ion ze-hydrogen ngenxa yokuqhekeka kweemolekyuli zamanzi. Ke ngoko, phantsi kweemeko ezifanelekileyo, nokuba i-plating ikwi-electrolyte ene-acidic, neutral, okanye ye-alkaline, kuhlala kukho i-hydrogen precipitation kwi-cathode kunye ne-metal precipitation. Emva kokuba ii-ion ze-hydrogen zinciphile kwi-cathode, inxalenye ye-hydrogen iyaphuma, kwaye inxalenye ingena kwi-matrix metal kunye ne-coating kwimeko ye-atomic hydrogen. Iguqula i-lattice, ibangele uxinzelelo olukhulu lwangaphakathi, kwaye ikwabangela ukuba i-coating yonakale kakhulu.
Iziphumo zenkqubo yokugquma
Ukuba ukwakheka kwesisombululo se-electroplating kunye nezinye iziphumo zolawulo lwenkqubo azifakwanga, ukusilela kombane kwinkqubo ye-electroplating yimbangela ebalulekileyo yokulahleka kwengubo. Inkqubo yokuvelisa i-electroplating yezixhobo zedayimani ze-electroplating yahluke kakhulu kwezinye iintlobo ze-electroplating. Inkqubo ye-plating yezixhobo zedayimani ze-electroplating ibandakanya i-plating engenanto (isiseko), i-sand coating kunye ne-thickening process. Kwinkqubo nganye, kukho ithuba lokuba i-matrix ishiye isisombululo se-plating, oko kukuthi, ukucima kombane ixesha elide okanye elifutshane. Ke ngoko, ukusetyenziswa kwenkqubo efanelekileyo, inkqubo kunokunciphisa ukuvela kwento yokuchitha i-coating.
Eli nqaku liphinde lashicilelwa "Inethiwekhi yezinto ezisetyenziswa kakhulu eTshayina"
Ixesha leposi: Matshi-14-2025
