Eia nā ʻokoʻa a mākou e hōʻuluʻulu ai ma waena o Trivalent a me hexavalent chromes.
ʻOkoʻa ma waena o Trivalent a me Hexavalent Chromium
Hexavalentchromium platingʻO ia ke ʻano kuʻuna o ka chromium plating (i ʻike nui ʻia ʻo chrome plating) a hiki ke hoʻohana ʻia no ka hoʻopau ʻana a me ka hana.Loaʻa ka hoʻoheheʻe ʻana i ka chromium hexavalent ma o ka hoʻokomo ʻana i nā substrate i loko o kahi ʻauʻau o ka chromium trioxide (CrO3) a me ka sulfuric acid (SO4).Hāʻawi kēia ʻano chromium plating i ka corrosion a me ke kūpaʻa ʻana, a me ka hoʻopiʻi aesthetic.
ʻO ka huila hoʻokele kaʻa i ka hoʻopau chrome hexavalent
Hexavalent chromiumhoʻopalapalaaia nae kona mau hemahema.Hoʻopuka kēia ʻano plating i kekahi mau huahana i manaʻo ʻia he ʻōpala pōʻino, me nā chromates lead a me ka barium sulfate.ʻO ka Hexavalent chromium ponoʻī he mea pōʻino a me ka carcinogen a ua hoʻoponopono nui ʻia e ka EPA.I kēia mau makahiki i hala iho nei, ua hoʻāʻo nā OEM automotive e like me Chrysler e hoʻololi i nā hoʻopau chromium hexavalent me nā hoʻopau ʻoluʻolu.
ʻO ka chromium trivalentʻo kekahi ʻano hanahoʻopalapala chrome hoʻonani, a ua manaʻo ʻia ʻo ia ka ʻokoʻa pili i ka kaiapuni i ka hexavalent chromium, me ka nui o nā ʻano like;e like me hexavalent chrome hoʻopau, trivalent chrome hoʻopau e hāʻawi i ka ʻōpala a me ka corrosion a loaʻa i nā koho kala like ʻole.Hoʻohana ʻo Trivalent chromium plating i ka chromium sulfate a i ʻole chromium chloride ma ke ʻano he kumu nui, ma kahi o ka chromium trioxide;e hoemi ana i ka chromium trivalent ma mua o ka chromium hexavalent.
Hoʻohui ʻia ka pahu i loko o ka chrome trivalent ʻeleʻele ma luna o ka nickel mālamalama
ʻOiai ʻoi aku ka paʻakikī o ka hoʻokele ʻana i ke kaʻina hana trivalent chromium, a ʻoi aku ke kumu kūʻai o nā kemika e pono ai ma mua o ka mea i hoʻohana ʻia no ka chromium hexavalent, ʻo ka maikaʻi o kēia ʻano hana e hoʻokūkū ai me nā ʻano hana ʻē aʻe o ka hoʻopau ʻana.Pono ke kaʻina trivalent i ka ikehu liʻiliʻi ma mua o ke kaʻina hana hexavalent a hiki ke kū i nā pilikia o kēia manawa, e ʻoi aku ka ikaika.ʻO ka ʻawaʻawa haʻahaʻa o Trivalent chromium ʻo ia hoʻi, ua hoʻoponopono ʻia me ka liʻiliʻi loa, e hōʻemi ana i nā ʻōpala pōʻino a me nā kumukūʻai hoʻokō ʻē aʻe.
Me nā lula e pili ana i nā mea pōʻino e paʻa ana i ka US a me EU, ke piʻi nei ka pono no ka hoʻopau ʻana i ke kaiapuni e like me trivalent chrome.
Hexavalent Chromium Plating Solution
Hoʻohana nui ʻia nā waihona chromium paʻa paʻa, ʻoi aku ka mānoanoa o ka plating, i nā ʻoihana mining a me nā mokulele a no nā hydraulics a me nā mea hana metala.Hoʻohana pū ʻia lākou i ka hoʻopau ʻana i nā lāʻau lapaʻau a me nā mea hana.
Hexavalent chromium electrolytes pono i kahi kumu o chromium ion a hoʻokahi a ʻoi aku paha nā catalysts i mea e paʻa ai.ʻO ka hoʻokumu ʻana o ke kaʻina hana kuʻuna, i kapa ʻia ʻo ka ʻauʻau maʻamau, aia ka chromium hexavalent a me ka sulfate ma ke ʻano he catalyst wale nō.
ʻO nā mea hoʻohui waiwai i hiki ke hoʻohui ʻia i ka ʻauʻau ʻauʻau hexavalent chromium plating maʻamau e hoʻomaikaʻi ai i ke kaʻina hana ua kapa ʻia nā ʻauʻau huikau-catalyst no ka mea aia nā mea hoʻohui i hoʻokahi catalyst hou aʻe i ka sulfate.
ʻO ka hoʻoheheʻe ʻana o Trivalent Chromium Plating
ʻOkoʻa nā mea electrolytes no nā mea hoʻonā chromium plating trivalent i ka kemika, akā aia lākou āpau i kahi kumu o trivalent chromium, i hoʻohui pinepine ʻia e like me ka paʻakai sulfate a i ʻole ka paʻakai chloride.Loaʻa iā lākou kahi mea solubilizing e hui pū me ka chromium e ʻae iā ia e pā i ka makemake e hoʻonui i ka conductivity i ka hopena.
Hoʻohana ʻia nā mea hoʻomaʻemaʻe e kōkua i ka hoʻoheheʻe ʻana a me ka hoʻohaʻahaʻa ʻana i ka ʻili o ka ʻili.ʻO ka haʻahaʻa haʻahaʻa o ka ʻili e hoʻopau maoli i ka hoʻokumu ʻana o ka noe ma ka anode a i ʻole cathode.ʻOi aku ka maikaʻi o ke kaʻina hana plating e like me ke kemika ʻauʻau Nickel ma mua o ka ʻauʻau Hex chrome.He puka aniani kaʻina hana ʻoi aku ka liʻiliʻi ma mua o ka hexavalent Chrome plating.ʻO ia hoʻi, pono e hoʻomalu maikaʻi ʻia ka hapa nui o nā kaʻina hana, a ʻoi aku ka pololei.ʻOi aku ka maikaʻi o ka Trivalent Chrome ma mua o ka Hex.Maikaʻi ka waiho ʻana a hiki ke nani loa.
Hexavalent chromium plating i kona mau hemahema, akā naʻe.Ua ʻike ʻia ʻo ia he carcinogen kanaka a hiki ke alakaʻi i nā pilikia olakino koʻikoʻi.E hoʻomanaʻo i ka mea i hana ai ʻo Erin Brockovich i inoa ʻohana?Hoʻopuka kēia ʻano plating i kekahi mau huahana i manaʻo ʻia he pōʻino.
Hoʻopili chromium trivalentʻoi aku ka maikaʻi o ke kaiapuni ma mua o ka hexavalent chromium;ua ʻae ʻia ke kaʻina hana electrodeposition e ʻoi aku ma mua o 500 mau manawa liʻiliʻi ma mua o ka hexavalent Chromium.ʻO ka pōmaikaʻi nui o nā kaʻina hana chromium trivalent ʻoi aku ka maʻalahi.ʻOi aku ka ʻokoʻa o ka hāʻawi ʻana i ka pāpaʻi, hiki ke hoʻopaʻa ʻia ka barela no ka trivalent chrome, ʻaʻole hiki ke hana me hexavalent chrome.
Hexavalent Vs Trivalent Chromium
| Nā mea | Hexavalent Chromium | Trivalent Chromium |
| Hoʻomaʻamaʻa ʻino | Pipiʻi | maʻalahi |
| Mana Kiola | ʻilihune | Maikaʻi loa |
| Palekana | Palekana loa | Palekana pili;like me Nickel |
| Hoʻomanawanui i ka hoʻohaumia ʻana | Maikaʻi | ʻAʻole maikaʻi |
| NSS a me CASS | Likelike | Likelike |
| Kū'ē i ke ahi | ʻAʻole maikaʻi | Maikaʻi loa |
Papa hoʻohālikelike i kekahi mau waiwai o Hexavalent a me Trivalent Chromium
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.
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Ka manawa hoʻouna: Nov-11-2023