Soo koobid:
Ku darista chromium madowayaa ganacsi ahaan loo heli jiray in ka badan 50 sano.Plating-ka asalka ah ee chromium madow waxaa lagu sifeeyay Mil Std 14538 kaas oo kaydiya chromium madowchromium hexavalentelectrolyte.Tobankii sano ee la soo dhaafay, waxaa jiray horumar ganacsi oo dhigaalka chromium madow ee achromium trivalentelectrolyte.Warqadani waxay dib u eegi doontaa sifooyinka deebaajiga iyo tixgelinta hawlgelinta kuwan la midka ah, laakiinchromium kala duwandhigaal.
Hordhac
Quruxda iyo Xayawaanka (Faransiiska: La Belle et la Bête) waa sheeko-faneed uu qoray qoraa-yaqaan Faransiis ah Gabrielle-Suzanne Barbot de Villeneuve oo la daabacay 1740. Isbarbardhiggayaga bandhiggan ma ahaan doono mid ku saabsan sheeko-xariireedka laakiin waa farqiga u dhexeeyatxafiiltanka iyohexavalentchromium-ku-salaysan hababka dahaadhinta chromium madow.
Jaantuska 1 wuxuu isbarbar dhigayaa muuqaalka xalalka trivalent iyo hexavalent.Dhanka bidix waxa ku yaal habka dahaadhinta chromium sulfate ee ku salaysan trivalent madow.Midabka xalku waa buluug qoto dheer, taangiga waa nadiif, xalkuna waa mid deggan.Waxaan si fudud u go'aansannay in habkan loogu yeero Quruxda bandhiggan.
Dhinaca midig waxaa ku yaal habka dahaaridda chromium trioxide-ku-salaysan ee madow.Midabka xalku waa bunni guduudan.Inta lagu jiro koronto-samaynta, gaaska hydrogen-ku wuu kobcaa, kaas oo abuuri kara ceeryaamo chromium-hexavalent ah.Ceeryaankan waa in lagu xakameeyaa walxaha qoynta ama hawo-jiid-jiid.chromium madow ee hexavalent, ugu yaraan inta ka hartay bandhiggan, waxaa loo tixraaci doonaa sida ugu fiican.
Jaantuska 1 - Isbarbardhigga hababka dahaadhinta chromium madow ee trivalent iyo hexavalent.
Ujeedada shaqadan ayaa ah in la qiimeeyo kaydka korantada ee chromium madow ee beddelka ah iyo go'aaminta isticmaalka dhabta ah iyo ku habboonaanta dahaarkan gudaha iyo dibadda baabuurta iyo codsiyada ganacsiga.Diiradadu waxay saaran tahay sifooyinka waxqabadka jireed, oo ay ku jiraan ilaalinta daxalka, iska caabinta xoqidda, caabbinta wasakhda iyo muuqaalka labadaba kaydadka chromium madow ee hexavalent iyo saddex-salaysan.Natiijadu waa inay u adeegtaa hage la taaban karo oo lagu dooranayo isku dhafka ugu fiican ee dahaarka dhejiska ah si loo gaaro waxqabadka la filayo.Waxaan sidoo kale raadineynaa inaan aqoonsanno sida kaydka chromium-ka madow ay u barbar dhigaan beddelka daahanka madow ee kale, oo ay ku jiraan PVD, jaakad budada madow iyo nikkel koronto la'aan madow.
Asalkii hore
Ruqsadaha loogu talagalay chromium-ka madow ee dahaadhaysa waxay soo taxnayd ilaa 1952. Ruqsadda bilawga ah ee la xidhiidha koronto-samaynta chromium madow, waxa la siiyay Gilbert iyo Buhman. Qaybaha qoryaha, qaybaha madaafiicda iyo qalabka militariga ee Rock Island Arsenal.1 Patents dheeraad ah ayaa lagu xareeyay Westinghouse Electric 1956 iyo Kewanee Oil Company (Harshaw Chemical), oo la soo saaray 1971.2,3 The Patent Harshaw, ugu dambeyntii waxaa lagu wareejiyay M&T Chemicals, waxaana hadda lagu iibinayaa Atotech Kiimikada ganacsiga ee Econo-chrome BK.
Shatiyada ugu horreeya eedahaarka chromium trivalenttaariikhda dib u soo laabtay horraantii 1970. Gyllenspentz iyo Renton ee Albright iyo Wilson;iyo sidoo kale Tremmel of OMI (hadda MacDermid Enthone), waxay ahaayeen mid ka mid ah hormoodyadii hore si ay u fuliyaan horumarinta qubayska chromium electroplating trivalent.Shaqada Tremmel waxay diiradda saareysaa ka faa'iidaysiga xeryahooda thiazol, halka shaqada Gyllenspentz iyo Renton ay diiradda saareen isticmaalka formate, acetate, bromide iyo ammonium si loo gaaro deebaaji ganacsi ahaan la heli karo.4-7 Waxaa intaa dheer, wax-soo-saarka cusub ee ganacsiga ee bixiya chloride ama kiimikada ku salaysan sulfate ayaa aad u badan. sida caadiga ah loo isticmaalo hadda oo ay fududahay in la xakameeyo.
Isbarbardhigga Hawleed
Shaxda 1 waxa ay isbarbar dhigaysaa halbeegyada hawlgalka ee labada nooc ee chloride iyo sulfate ee chromium madow ee trivalent iyo hababka chromium madow ee hexavalentHababka chromium madow ee trivalent waxay isticmaalaan chloride ama milix bir sulfate ah oo leh chromium loogu talagalay elektrolytka, halka chromium madow uu isticmaalo chromium trioxide (ama chromic acid) qaybta ugu muhiimsan.Qubeyska trivalent waxay ku shaqeeyaan pH kala duwan oo ah 2-4 halka chromium madow ee hexavalent uu ku shaqeeyo pH ka yar 1. Heerkulka hawlgalka ayaa la mid ah dhammaan saddexda xal.
Riix halkan si aad u barato:Farqiga u dhexeeya Trivalent Chromium iyo Hexavalent Chromium
Shaxda 1 - Isbarbardhigga hawlgalka ee chloride Cr (III), sulfate Cr (III) iyo Cr (VI)
Nidaamyada.
Sida tuurista iyo daboolka, hababka chromium madow ee trivalent waxay leeyihiin awood tuurasho wanaagsan waxayna si buuxda u dabooli doonaan qaybo ka mid ah iyada oo aan la isticmaalin anodes-ka caawinta gaarka ah.Nashqadaha raking caadiga ah waa la isticmaali karaa.
Si kastaba ha ahaatee, tani maahan kiiska geeddi-socodka chromium madow ee hexavalent.Hufnaantu waa liidata taasoo horseedaysa la'aanta tuurista iyo daboolka awoodda.Haddii aan lahayn qalab gaar ah oo lagu rakibo (ie, anodes-ka caawiya), deebaajiga chromium madow wuxuu yeelan doonaa habab badan oo cawl iyo cawl/madow, iyo dhowr walxood oo kiimiko ah ayaa loo baahan yahay in loo dheellitiro madowga ugu fiican marka loo eego tirada cufnaanta hadda jirta oo dhan.
Ku saabsan CheeYuen
Waxaa lagu aasaasay Hong Kong 1969,CheeYuunwaa bixiyaha xalalka wax soo saarka qayb balaastik ah iyo daaweynta dusha sare.Ku qalabaysan mashiinno horumarsan iyo khadadka wax soo saarka (1 tooling iyo irbaynta xarunta, 2 khadadka electroplating, 2 khadadka rinjiyeynta, 2 PVD line iyo kuwa kale) oo ay hogaaminayaan koox ka go'an oo khubaro iyo farsamoyaqaano, CheeYuen Surface Treatment waxay bixisaa xal leexashadachromed, rinjiyeyn&Qaybaha PVD, laga bilaabo qalabka naqshadaynta wax-soo-saarka (DFM) ilaa PPAP iyo ugu dambayntii ilaa la dhammeeyey qaybinta qaybinta adduunka oo dhan.
Waxaa cadeeyeyIATF16949, ISO9001iyoISO14001laguna xisaabiyeyVDA 6.3iyoCSR, CheeYuen Surface Treatment waxa uu noqday iibiye si weyn loo ammaanay iyo lammaane istiraatijiyadeed ee tiro badan oo ah noocyada caanka ah iyo soo saarayaasha baabuurta, qalabka, iyo warshadaha wax soo saarka qubeyska, oo ay ku jiraan Continental, ALPS, ITW, Whirlpool, De'Longhi iyo Grohe. iwm.
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Waqtiga boostada: Febraayo-26-2024