Ukunyangwa komphezulu we-castings: i-chrome plating, i-nickel plating, i-zinc plating, yintoni umahluko?

Xa kuziwa kwi-electroplating, kufuneka siqale siqonde ukuba yintoni kanye kanye. Ukubeka nje, i-electroplating yinkqubo yokusebenzisa umgaqo we-electrolysis ukufaka umaleko obhityileyo wezinye isinyithi okanye i-alloys kumphezulu wesinyithi.

Oku akusiyo ngenxa yembonakalo, kodwa okona kubaluleke kakhulu, kunokuthintela i-oxidation kunye nomhlwa, ngelixa iphucula ukuxhathisa kokunxiba komphezulu, ukuhanjiswa, kunye nokumelana nokugqwala. Ewe, inkangeleko nayo inokuphuculwa.

Kukho iintlobo ezininzi ze-electroplating, ezibandakanya ukufakwa kwe-copper, ukucwenga kwegolide, ukucwenga kwesilivere, ukufakwa kwe-chrome, ukufakwa kwe-nickel, kunye ne-zinc plating. Kwishishini lemveliso, i-zinc plating, i-nickel plating, kunye ne-chrome plating zisetyenziswa kakhulu. Yintoni umahluko phakathi kwabo bobathathu? Makhe sijonge nganye nganye.

Ukufakwa kweZinc

I-Zinc plating yinkqubo yokugquma umaleko we-zinc kumphezulu wesinyithi okanye ezinye izinto, ngokukodwa ukuthintela umhlwa kunye neenjongo zobuhle.

Iimpawu zixabiso eliphantsi, ukuxhathisa okufanelekileyo kokubola, kunye nombala omhlophe wesilivere.

Ngokuqhelekileyo isetyenziswa kwizinto ezinobuthathaka kunye nerusi ezixhathisayo ezifana nezikrufu, iziqhekeza zeesekethe, kunye neemveliso zamashishini.

I-Nickel plating

I-Nickel plating yinkqubo yokubeka umaleko we-nickel phezu komhlaba ngokusebenzisa i-electrolysis okanye iindlela zekhemikhali.

Iimpawu zayo zezokuba inenkangeleko entle, ingasetyenziselwa ukuhombisa, ubugcisa bayo bunzima ngakumbi, ixabiso likwaphezulu ngokwentelekiso, kwaye umbala umhlophe wesilivere kunye nentwana etyheli.

Uya kuyibona kwiintloko zezibane zokonga amandla, iingqekembe, kunye nezinye izixhobo.

Ukufakwa kweChrome

I-Chrome plating yinkqubo yokubeka umaleko wechromium kumphezulu. I-Chrome ngokwayo iyintsimbi emhlophe eqaqambileyo ene-blues.

I-Chrome plating yohlulwe kakhulu ibe ziindidi ezimbini: enye ihombise, enenkangeleko eqaqambileyo, ukuxhathisa ukunxiba, kunye nokuthintela umhlwa kubi kancinci kunokubekwa kwe-zinc kodwa ingcono kune-oxidation eqhelekileyo; Enye iyasebenza, ngenjongo yokwandisa ubunzima kunye nokumelana nokugqoka kwamacandelo.

Imihlobiso eqaqambileyo kwizixhobo zasekhaya kunye neemveliso ze-elektroniki, kunye nezixhobo kunye neempompo, zihlala zisebenzisa i-chrome plating.

Umahluko osisiseko phakathi kwezi zintathu

I-Chrome plating isetyenziselwa ukunyusa ubulukhuni, ubuhle, kunye nokuthintela umhlwa. Iimpawu zeekhemikhali zoluhlu lwe-chromium zizinzile kwaye aziphenduli kwi-alkali, i-nitric acid, kunye ne-organic acids ezininzi, kodwa zivakalelwa kwi-hydrochloric acid kunye ne-asidi ye-sulfuric eshushu. Ayitshintshi umbala, inamandla okubonakalisa ixesha elide, kwaye yomelele kunesilivere kunye ne-nickel. Inkqubo idla ngokuba yi-electroplating.

I-Nickel plating igxile ekuxhathiseni ukunxiba, ukuxhathisa ukubola, kunye nokuthintela umhlwa, kunye nokwaleka ngokubanzi kubhityile. Kukho iintlobo ezimbini zeenkqubo: i-electroplating kunye ne-chemistry.

Ngoko ukuba uhlahlo lwabiwo-mali luqinile, ukukhetha i-zinc plating ngokuqinisekileyo lukhetho olufanelekileyo; Ukuba uphishekela ukusebenza okungcono kunye nenkangeleko, kuya kufuneka uqwalasele i-nickel plating okanye i-chrome plating. Ngokufanayo, ukuxhoma ukuxhoma kudla ngokubiza kakhulu kunokuqengqeleka ngokwemigaqo yenkqubo.