Nawu umehluko esiwufingqa phakathi kwe-Trivalent ne-hexavalent chrome.
Umehluko Phakathi kwe-Trivalent ne-Hexavalent Chromium
I-Hexavalenti-chromium platingiyindlela evamile yokucwenga kwe-chromium (evame ukwaziwa kakhulu ngokuthi i-chrome plating) futhi ingasetshenziselwa ukuhlobisa nokusebenza.I-hexavalent chromium plating ifinyelelwa ngokucwilisa ama-substrates kubhavu le-chromium trioxide (CrO3) ne-sulfuric acid (SO4).Lolu hlobo lwe-chromium plating lunikeza ukugqwala nokumelana nokugqoka, kanye nokukhanga kobuhle.
Ingxenye yesiteringi sezimoto esekupheleni kwe-chrome eyihexavalent
I-chromium ene-hexavalentukucwengainobubi bayo, nokho.Lolu hlobo lwe-plating lukhiqiza imikhiqizo eminingana ethathwa njengemfucuza eyingozi, okuhlanganisa ama-chromates omthofu ne-barium sulfate.I-chromium ene-hexavalent yona iyinto eyingozi kanye ne-carcinogen futhi ilawulwa kakhulu yi-EPA.Eminyakeni yakamuva, ama-OEM ezimoto afana ne-Chrysler enze imizamo yokufaka esikhundleni sokuqedwa kwe-chromium eyi-hexavalent ngokuqedwa okuvumelana ne-eco-friendly.
I-chromium encanekungenye indlela yeukuhlobisa kwe-chrome plating, futhi ibhekwa njengenye indlela evumelana nemvelo kune-chromium ene-hexavalent, enezici eziningi ezifanayo;njengokuqedwa kwe-chrome eyi-hexavalent, ukuqedwa kwe-chrome okuthathu kunikeza ukumelana nokuklwebheka futhi kuyatholakala ngezinketho zombala ezahlukahlukene.I-trivalent chromium plating isebenzisa i-chromium sulfate noma i-chromium chloride njengesithako sayo esiyinhloko, esikhundleni se-chromium trioxide;okwenza i-trivalent chromium ibe nobuthi obuncane kune-chromium ene-hexavalent.
Igrill ehlanganiswe nge-chrome emnyama eyi-trivalent phezu kwe-nickel ekhanyayo
Nakuba inqubo yokucwenga i-chromium eyi-trivalent inzima kakhulu ukuyilawula, futhi amakhemikhali adingekayo abiza kakhulu kunalawo asetshenziselwa i-chromium ene-hexavalent, izinzuzo zale ndlela ziyenza ikwazi ukuncintisana nezinye izindlela zokuqeda.Inqubo ye-trivalent idinga amandla amancane kunenqubo ye-hexavalent futhi ingamelana neziphazamiso zamanje, iyenze ibe namandla kakhulu.Ubuthi obuphansi be-chromium busho ukuthi ilawulwa ngokucindezela kancane, kunciphisa udoti oyingozi nezinye izindleko zokuthobela imithetho.
Njengoba imithethonqubo emayelana nezinto eziyingozi iqina e-US nase-EU, isidingo sokuqedwa okunobungani kwemvelo njenge-chrome eyi-trivalent siyakhula.
Isixazululo se-Hexavalent Chromium Plating
Amadiphozithi aqinile e-chromium plated, ngokuvamile okuwugqinsi, asetshenziswa kakhulu ezimbonini zezimayini nezindiza kanye nakuma-hydraulic kanye nezinto zokwakha zensimbi.Zibuye zisetshenziswe ekuqedeni imishini yezokwelapha neyokuhlinzwa.
I-hexavalent chromium electrolyte idinga umthombo wama-ion e-chromium kanye ne-catalyst eyodwa noma ngaphezulu ukuze ipuleti.Ukwakhiwa kwenqubo yendabuko, ebizwa ngokuthi ukugeza okuvamile, kuqukethe i-chromium ene-hexavalent kanye ne-sulfate njengokuwukuphela kwe-catalyst.
Izithasiselo zobunikazi ezingangezwa ekubunjweni kokugeza okujwayelekile kwe-chromium eyi-hexavalent ukuze kuthuthukiswe inqubo kubizwa ngokuthi amabhavu e-mix-catalyst njengoba izithasiselo ziqukethe okungenani i-catalyst eyodwa eyengeziwe ngaphezu kwesulfate.
Isixazululo se-Trivalent Chromium Plating
Ama-electrolyte ezixazululo ze-trivalent chromium plating ahlukile kukhemistri, kodwa wonke aqukethe umthombo we-chromium e-trivalent, evamise ukungezwa njenge-sulfate noma usawoti we-chloride.Futhi aqukethe okokusebenza okuncibilikisayo okuhlangana ne-chromium ukuyivumela ukuthi icwebezele esifisweni sokukhulisa ukusebenza kahle esixazululweni.
Ama-ejenti wokumanzisa asetshenziselwa ukusiza ekuphenduleni kwe-deposition kanye nokunciphisa ukungezwani okungaphezulu kwesixazululo.Ukuncipha kwengcindezi yendawo empeleni kuqeda ukwakheka kwenkungu ku-anode noma i-cathode.Inqubo yokucwenga isebenza kakhulu njengekhemikhali yokugeza ye-Nickel kunokugeza kwe-Hex chrome.Inewindi lenqubo elincane kakhulu kune-Chrome plating eyi-hexavalent.Lokho kusho ukuthi iningi lamapharamitha wenqubo kumele alawulwe kahle, futhi ngokunembe kakhulu.Ukusebenza kahle kwe-Trivalent Chrome kuphezulu kunalokho kwe-Hex.Idiphozithi yinhle futhi ingakhanga kakhulu.
I-hexavalent chromium plating inezinkinga zayo, nokho.Yaziwa ngokuthi i-carcinogen yomuntu futhi ingaholela ezinkingeni ezinkulu zempilo.Khumbula ukuthi yini eyenza u-Erin Brockovich abe negama lasekhaya?Lolu hlobo lokucwenga lukhiqiza imikhiqizo eminingana ethathwa njengeyingozi.
I-Trivalent chromium Platinginobungani bemvelo kune-chromium ene-hexavalent;inqubo ye-electrodeposition ngokuvamile yamukelwa ukuthi ibe nobuthi obuncane obuphindwe izikhathi ezingama-500 kune-Chromium ene-hexavalent.Inzuzo enkulu yezinqubo ze-chromium e-trivalent ukuthi iguquguquka kakhulu.Ukusatshalaliswa kwe-plating kufana kakhulu, i-barrel plating ingenzeka nge-chrome eyi-trivalent, okungenakwenzeka nge-chrome hexavalent.
I-Hexavalent Vs Trivalent Chromium
| Izinto | I-Hexavalent Chromium | I-Trivalent Chromium |
| Ukwelashwa Kwemfucuza | Kuyabiza | Kulula |
| Ukuphonsa Amandla | Impofu | Kuhle |
| Ukuphepha | Ayiphephile Kakhulu | Kuphephile uma kuqhathaniswa;kufana ne-nickel |
| Ukubekezelela Ukungcola | Kahle Kahle | Hhayi Okuhle |
| I-NSS kanye ne-CASS | Okufanayo | Okufanayo |
| Ukumelana nokushiswa | Akukuhle | Kuhle kakhulu |
Ithebula eliqhathanisa izici ezithile ze-Hexavalent ne-Trivalent Chromium
Mayelana ne-CheeYuen
Yasungulwa eHong Kong ngo-1969,CheeYueningumhlinzeki wesixazululo wokukhiqiza izingxenye zepulasitiki kanye nokwelashwa kwendawo.Ifakwe imishini ethuthukisiwe kanye nemigqa yokukhiqiza (isikhungo esi-1 samathuluzi nokubumba umjovo, imigqa engu-2 ye-electroplating, imigqa yokudweba emi-2, ulayini we-PVD emi-2 nokunye) futhi eholwa ithimba elizinikele lochwepheshe nochwepheshe, Ukwelashwa kwe-CheeYuen Surface kuhlinzeka ngesixazululo se-turnkeychromed, ukudweba&Izingxenye ze-PVD, kusukela ekwakhiweni kwamathuluzi okukhiqiza (i-DFM) kuya ku-PPAP futhi ekugcineni kuze kube sekuqedwe ukulethwa kwengxenye emhlabeni wonke.
Kuqinisekiswe nguIATF16949, ISO9001futhiISO14001futhi ihlolwe ngeI-VDA 6.3futhiI-CSR, I-CheeYuen Surface Treatment isiphenduke umphakeli owaziwa kabanzi kanye nozakwethu wesu wenani elikhulu lemikhiqizo nabakhiqizi abaziwayo ezimbonini zezimoto, zikagesi, nemikhiqizo yokugeza, okuhlanganisa i-Continental, ALPS, ITW, Whirlpool, De'Longhi neGrohe, njll.
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Isikhathi sokuthumela: Nov-11-2023