Amathuluzi edayimane ane-electroplated ahlanganisa izinqubo eziningi ohlelweni lokukhiqiza, noma iyiphi inqubo ayanele, izokwenza ukuthi ukumboza kuwele.
Umthelela wokwelashwa kwangaphambi kokucwenga
Inqubo yokwelapha ye-matrix yensimbi ngaphambi kokungena ethangini lokucwenga ibizwa ngokuthi i-pre-plating treatment. Ukwelashwa kwangaphambi kokucwenga kuhlanganisa: ukupholisha ngomshini, ukususwa kukawoyela, ukuguguleka komhlabathi kanye nezinyathelo zokwenza kusebenze. Inhloso yokwelapha kwangaphambilini ukususa i-burr, uwoyela, ifilimu ye-oxide, ukugqwala kanye nesikhumba se-oxidation ebusweni be-matrix, ukuze kuvezwe insimbi ye-matrix ukuze ikhulise i-lattice yensimbi ngokujwayelekile futhi yakhe amandla okubopha ama-intermolecular.
Uma ukwelashwa kwangaphambili kwe-plating kungalungile, ubuso be-matrix bunefilimu encane kakhulu yamafutha kanye nefilimu ye-oxide, uhlamvu lwensimbi lwensimbi ye-matrix alukwazi ukuvezwa ngokugcwele, okuzovimbela ukwakheka kwensimbi yokumboza kanye nensimbi ye-matrix, okuwumshini wokufakela kuphela, amandla okubopha ampofu. Ngakho-ke, ukuphathwa kabi ngaphambi kokucwenga kuyimbangela eyinhloko yokuchithwa kwe-coating.
Umthelela we-plating
Ifomula yesisombululo se-plating ithinta ngqo uhlobo, ubulukhuni nokumelana nokugqoka kwensimbi yokugqoka. Ngamapharamitha wenqubo ahlukene, ukushuba, ukuminyana kanye nokucindezeleka kwe-crystallization yensimbi enamathela kungalawulwa.
Ukuze kukhiqizwe amathuluzi e-diamond electroplating, abantu abaningi basebenzisa i-nickel noma i-nickel-cobalt alloy. Ngaphandle kwethonya lokungcola kwe-plating, izici ezithinta ukuchithwa kwe-coating yilezi:
(1) Ithonya lokucindezeleka kwangaphakathi Ukucindezeleka kwangaphakathi kwe-coating kukhiqizwa ngenqubo ye-electrodeposition, futhi izithasiselo ku-wave encibilikile kanye nemikhiqizo yazo yokubola kanye ne-hydroxide izokwandisa ukucindezeleka kwangaphakathi.
Ukucindezeleka kwe-macroscopic kungabangela ama-bubbles, ukuqhekeka nokuwa kwe-coating ngesikhathi sokugcina nokusetshenziswa.
Nge-nickel plating noma i-nickel-cobalt alloy, ukucindezeleka kwangaphakathi kuhluke kakhulu, ukuphakama kokuqukethwe kwe-chloride, kukhulu ukucindezeleka kwangaphakathi. Ukuze uthole usawoti oyinhloko wesisombululo se-nickel sulfate coating, ukucindezeleka kwangaphakathi kwesisombululo se-watt coating kuncane kunesinye isisombululo sokugqoka. Ngokungeza i-organic luminent noma i-ejenti yokuqeda ukucindezeleka, ukucindezeleka okukhulu kwangaphakathi kwe-coating kungancishiswa kakhulu futhi ukucindezelwa kwangaphakathi kwe-microscopic kungandiswa.
(2)Umphumela wokuguquguquka kwe-hydrogen kunoma yisiphi isixazululo se-plating, kungakhathaliseki inani laso le-PH, kuhlale kunenani elithile lama-ion e-hydrogen ngenxa yokuhlukana kwama-molecule amanzi. Ngakho-ke, ngaphansi kwezimo ezifanele, kungakhathaliseki ukuthi kuhlanganiswe i-acidic, neutral, noma i-alkaline electrolyte, kuvame ukuba nemvula ye-hydrogen ku-cathode kanye nemvula yensimbi. Ngemva kokuba ama-ion e-hydrogen encipha ku-cathode, ingxenye ye-hydrogen iyaphuma, futhi ingxenye ingena ensimbi ye-matrix futhi inamathele esimweni se-athomu ye-hydrogen. Ihlanekezela i-lattice, ibangele ukucindezeleka okukhulu kwangaphakathi, futhi yenza ukunamathela kukhubazeke kakhulu.
Imiphumela yenqubo yokucwenga
Uma ukwakheka kwesisombululo se-electroplating kanye neminye imiphumela yokulawula inqubo kukhishiwe, ukwehluleka kwamandla enqubweni ye-electroplating kuyimbangela ebalulekile yokulahlekelwa kwe-coating. Inqubo yokukhiqiza i-electroplating yamathuluzi edayimane e-electroplating ihluke kakhulu kwezinye izinhlobo ze-electroplating. Inqubo yokucwenga yamathuluzi edayimane e-electroplating ihlanganisa i-plating engenalutho (isisekelo), ukunamathela kwesihlabathi kanye nenqubo yokuqina. Enqubweni ngayinye, kukhona ithuba lokuthi i-matrix ishiye isisombululo se-plating, okungukuthi, ukuphuma kwamandla okude noma okufushane. Ngakho-ke, ukusetshenziswa inqubo enengqondo kakhudlwana, inqubo kungase futhi ukunciphisa ukuvela enamathela ukuchithwa mkhuba.
I-athikili iphinde yaphrintwa kusukela ku-"China Superhard Materials Network"
Isikhathi sokuthumela: Mar-14-2025
