Puhi:
ʻEleʻele chromium platingua loaʻa i ke kālepa no nā makahiki he 50.Hōʻike ʻia ka ʻeleʻele chromium plating mua ma Mil Std 14538 e waiho ana i ka chromium ʻeleʻele mai kahihexavalent chromiumelectrolyte.I loko o nā makahiki he ʻumi i hala iho nei, ua hoʻomohala ʻia ka hoʻomohala pāʻoihana o nā waihona chromium ʻeleʻele mai kahichromium trivalentelectrolyte.E nānā ana kēia pepa i nā ʻano waihona a me ka noʻonoʻo hana o kēia mau mea like, akāʻokoʻa chromium platingwaihona.
Hoʻolauna
ʻO Beauty and the Beast (French: La Belle et la Bête) he moʻolelo moʻolelo i kākau ʻia e ka mea kākau moʻolelo Farani ʻo Gabrielle-Suzanne Barbot de Villeneuve a paʻi ʻia i ka makahiki 1740. ʻAʻole e pili ana kā mākou hoʻohālikelike ʻana me kēia hōʻike ma ka moʻolelo moʻolelo akā ʻo ka ʻokoʻa ma waena o katpaio ahexavalentnā kaʻina hana ʻeleʻele chromium ma muli o ka chromium.
Hoʻohālikelike ka Kiʻi 1 i ke ʻano o nā ʻōnaehana hana trivalent a hexavalent.Aia ma ka ʻaoʻao hema kahi kaʻina hana ʻeleʻele ʻeleʻele chromium sulfate.ʻO ka waihoʻoluʻu kala he uliuli hohonu, maʻemaʻe ka pahu, a paʻa ka hopena.Ua hoʻoholo maʻalahi mākou e kapa ʻia kēia hana ʻo ka Nani i kēia hōʻike.
Aia ma ka ʻākau kahi kaʻina hana hoʻopalapala ʻeleʻele chromium trioxide.He ʻulaʻula ka waihoʻoluʻu kala.I ka wā electroplating, ulu ka hydrogen, hiki ke hana i ka noe hexavalent chromium.Pono e hoʻomalu ʻia kēia noe me nā mea hoʻomaʻemaʻe a i ʻole ka huki huki ʻana.ʻO ka chromium ʻeleʻele hexavalent, ma ka liʻiliʻi loa no ke koena o kēia hōʻike, e kapa ʻia ʻo ia ka mea maikaʻi loa.
Kiʻi 1 - He hoʻohālikelike o nā kaʻina hana hoʻoheheʻe chromium ʻeleʻele trivalent a hexavalent.
ʻO ka pahuhopu o kēia hana, ʻo ia ka loiloi ʻana i nā waihona electroplating chromium ʻeleʻele a hoʻoholo i ka hoʻohana pono a me ke kūpono o kēia mau uhi i loko a me waho o ka automotive a me nā noi kalepa.ʻO ka nānā ʻana i nā hiʻohiʻona hana kino, e pili ana i ka pale ʻana i ka corrosion, ka pale ʻana i ka ʻōpala, ka pale ʻana a me ke ʻano o nā waihona chromium ʻeleʻele hexavalent a me trivalent.Pono nā hualoaʻa e lilo i alakaʻi kūpono no ke koho ʻana i nā hui maikaʻi loa o nā uhi uhi e hoʻokō i ka hana i manaʻo ʻia.Ke ʻimi pū nei mākou e ʻike pehea e hoʻohālikelike ai nā waihona chromium ʻeleʻele me nā mea ʻē aʻe o ka uhi ʻeleʻele, me ka PVD, ka ʻaʻahu ʻeleʻele a me ka nickel electroless ʻeleʻele.
Kāpae
Ua hoʻopuka ʻia nā patent no ka ʻeleʻele chromium plating i ka makahiki 1952. ʻO ka patent mua e pili ana i ka electroplating black chromium, ua hoʻopuka ʻia iā Gilbert lāua ʻo Buhman. nā ʻāpana raifela, nā ʻāpana pū a me nā mea kaua ma ka Rock Island Arsenal.1 Ua waiho ʻia nā palapala ʻē aʻe e Westinghouse Electric i ka makahiki 1956 a me Kewanee Oil Company (Harshaw Chemical), i hoʻopuka ʻia i ka makahiki 1971.2,3 ʻO ka patent Harshaw Chemical, ua hoʻoili ʻia ma o M&T Chemicals, a ke kūʻai ʻia nei ma lalo o ka Atotech Chemical tradename Econo-chrome BK.
ʻO nā patent mua nohoʻopalapala chromium trivalentka lā hoʻi i ka hoʻomaka ʻana o 1970. ʻO Gyllenspentz lāua ʻo Renton o Albright lāua ʻo Wilson;a me Tremmel o OMI (i kēia manawa ʻo MacDermid Enthone), ʻo ia kekahi o nā paionia mua e hoʻokō i ka hoʻomohala ʻana i nā ʻauʻau electroplating trivalent chromium.ʻO ka hana a Tremmel i kālele ʻia i ka hoʻohana ʻana i nā pūhui thiazole, ʻoiai ʻo Gyllenspentz lāua ʻo Renton ka hana i kālele ʻia i ka hoʻohana ʻana i ka formate, acetate, bromide a me ka ammonium e loaʻa ai kahi waihona waiwai kūʻai. hoʻohana maʻamau i kēia manawa i maʻalahi ke kāohi.
Hoʻohālikelike hana
Hoʻohālikelike ka Papa 1 i nā ʻāpana hana o nā mana chloride a me sulfate o ka chromium ʻeleʻele trivalent a me nā kaʻina chromium ʻeleʻele hexavalent.3 ʻO ka ʻokoʻa hana mua a nui loa i ka electrolyte.Hoʻohana nā kaʻina chromium ʻeleʻele trivalent i ka paʻakai chloride a i ʻole sulfate metala me chromium no ka electrolyte, aʻo ka chromium ʻeleʻele hexavalent hoʻohana i ka chromium trioxide (a i ʻole chromic acid) no ka mea nui.Ke hana nei nā ʻauʻau trivalent ma ka pae pH o 2-4 aʻo ka chromium ʻeleʻele hexavalent e hana ana ma kahi pH o ka liʻiliʻi ma mua o 1. Ua like nā mahana hana i nā hopena ʻekolu.
Kaomi maanei e aʻo ai:ʻOkoʻa ma waena o Trivalent Chromium a me Hexavalent Chromium
Papa 1 - Hoʻohālikelike hana o ka chloride Cr(III), sulfate Cr(III) a me Cr(VI)
Nā hana.
No ke kiola a me ka uhi, ʻo nā kaʻina hana chromium ʻeleʻele trivalent he mana hoʻolei maikaʻi a e uhi piha i nā ʻāpana me ka ʻole o ka hoʻohana ʻana i nā anodes kōkua kūikawā.Hiki ke hoʻohana ʻia nā hoʻolālā racking maʻamau.
Eia naʻe, ʻaʻole kēia ka hihia me ke kaʻina hana chromium ʻeleʻele hexavalent.ʻAʻole maikaʻi ka maikaʻi e alakaʻi i ka nele o ka hoʻolei ʻana a me ka uhi ʻana i ka mana.Me ka loaʻa ʻole o ka hoʻopaʻa ʻana i nā rack kūikawā (ʻo ia hoʻi, nā anodes kōkua), e loaʻa i ka waihona chromium ʻeleʻele nā ʻano ʻeleʻele o ka hina a me ka hina/ʻeleʻele, a pono e kaulike ʻia kekahi mau mea kemika no ka ʻeleʻele maikaʻi loa ma luna o ka laulā paʻa o kēia manawa.
No CheeYuen
Ua hoʻokumu ʻia ma Hong Kong i ka makahiki 1969,ʻO CheeYuenhe mea hāʻawi hoʻonā no ka hana ʻana i ka ʻāpana plastik a me ka mālama ʻana i ka ʻili.Hoʻolako ʻia me nā mīkini kiʻekiʻe a me nā laina hana (1 mea hana a me ka injection molding center, 2 electroplating lines, 2 paint lines, 2 PVD line a me nā mea ʻē aʻe) a alakaʻi ʻia e kahi hui kūpaʻa o nā loea a me nā ʻenehana, hāʻawi ʻo CheeYuen Surface Treatment i kahi hopena turnkey nochromed, pena kiʻi&ʻāpana PVD, mai ka hoʻolālā mea hana no ka hana ʻana (DFM) a i ka PPAP a hiki i ka hoʻopau ʻana i ka hāʻawi ʻana ma ka honua holoʻokoʻa.
Hooia eIATF16949, ISO9001aISO14001a hooia meVDA 6.3aCSR, Ua lilo ʻo CheeYuen Surface Treatment i mea hoʻolako ākea ākea a me ka hoa hoʻolālā o ka helu nui o nā hōʻailona kaulana a me nā mea hana i nā ʻoihana kaʻa, mea hana, a me nā ʻoihana ʻauʻau ʻauʻau, me Continental, ALPS, ITW, Whirlpool, De'Longhi a me Grohe, etc.
He mau manaʻo e pili ana i kēia pou a i ʻole nā kumuhana āu e makemake ai e ʻike iā mākou e uhi i ka wā e hiki mai ana?
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Ka manawa hoʻouna: Feb-26-2024