Nke a bụ ọdịiche anyị na-achịkọta n'etiti Trivalent na chrome hexavalent.
Ọdịiche n'etiti Trivalent na Hexavalent Chromium
Hexavalentchromium platingbụ usoro ọdịnala nke chromium plating (nke a na-akpọkarị chrome plating) enwere ike iji ya mee ihe ịchọ mma na ịrụ ọrụ.A na-enweta plating chromium hexavalent site n'ime mmiri n'ime mmiri n'ime bat nke chromium trioxide (CrO3) na sulfuric acid (SO4).Ụdị chromium plating a na-enye corrosion na iyi nguzogide, yana mma mma.
Akụkụ steering ụgbọ ala na ngwụcha chrome hexavalent
chromium hexavalenteferenwere ọghọm ya, agbanyeghị.Ụdị efere a na-arụpụta ọtụtụ ihe ndị a na-ewere dị ka ihe mkpofu dị ize ndụ, gụnyere lead chromates na barium sulfate.Hexavalent chromium n'onwe ya bụ ihe dị ize ndụ na carcinogen ma EPA na-achịkwa nke ukwuu.N'afọ ndị na-adịbeghị anya, OEM ụgbọ ala dị ka Chrysler agbaala mbọ iji dochie mmecha chromium hexavalent na mmecha enyi na enyi.
Trivalent chromiumbụ usoro ọzọ nkeihe eji achọ chrome plating, a na-ewerekwa ya dị ka ihe mgbakwunye enyi na gburugburu ebe obibi na chromium hexavalent, nke nwere ọtụtụ njirimara;dị nnọọ ka hexavalent chrome emechara, trivalent chrome finishing na-enye ọkọ na nguzogide corrosion ma dị na nhọrọ agba dị iche iche.Trivalent chromium plating na-eji chromium sulfate ma ọ bụ chromium chloride dị ka isi ihe mejupụtara ya, kama chromium trioxide;na-eme ka chromium trivalent ghara ịdị nsi karịa chromium hexavalent.
Achịkọta grill na chrome trivalent ojii n'elu nickel na-egbuke egbuke
Ọ bụ ezie na usoro chromium plating trivalent siri ike ịchịkwa, na kemịkalụ dị mkpa dị oke ọnụ karịa nke ejiri maka chromium hexavalent, uru nke usoro a na-eme ka ọ bụrụ ọnụ ahịa na ụzọ ndị ọzọ nke imecha.Usoro trivalent chọrọ obere ume karịa usoro hexavalent ma nwee ike iguzogide nkwụsị nke ugbu a, na-eme ka ọ dịkwuo ike.Nsi dị ala nke chromium trivalent pụtara na a na-ahazi ya nke ọma, na-ebelata ihe mkpofu dị ize ndụ yana ụgwọ nnabata ndị ọzọ.
Site na iwu gbasara ihe ndị dị ize ndụ na-agbatị na US na EU, mkpa ọ dị maka ime enyi gburugburu ebe obibi dị ka chrome trivalent na-arị elu.
Ihe ngwọta Hexavalent Chromium Plating
A na-eji ihe nkwụnye ego chromium siri ike, nke na-abụkarị nnukwu efere, na-ejikarị eme ihe na ụlọ ọrụ Ngwuputa na ụgbọ elu yana maka hydraulics na ígwè akpụ.A na-ejikwa ha emecha ngwa ahụike na ịwa ahụ.
Hexavalent chromium electrolytes chọrọ isi iyi nke ion chromium na otu ma ọ bụ karịa ihe na-akpali akpali iji mee efere.Nhazi nke usoro ọdịnala, nke a na-akpọ bat, nwere hexavalent chromium na sulfate dị ka nanị ihe na-akpali akpali.
Ihe mgbakwunye nke nwere ike ịgbakwunye na usoro ịsa ahụ hexavalent chromium plating a na-ahụkarị ka a na-akpọ baths mix-catalyst ebe ọ bụ na mgbakwunye nwere opekata mpe otu ihe mgbakwunye na mgbakwunye sulfate.
Trivalent Chromium Plating Solution
Ndị electrolytes maka trivalent chromium plating solution dị iche na kemistri, mana ha niile nwere isi iyi nke chromium trivalent, nke a na-agbakwunye dị ka sulfate ma ọ bụ chloride nnu.Ha nwekwara ihe na-edozi ahụ nke na-ejikọta ya na chromium iji kwe ka ọ gbasaa na ọchịchọ ịbawanye conductivity na ngwọta.
A na-eji ihe ndị na-emepụta mmiri mee ihe iji nyere aka na mmeghachi omume nkwụnye ego na iji belata esemokwu elu nke ngwọta.Esemokwu dị n'elu belatara na-eweputa nguzobe nke alụlụ na anode ma ọ bụ cathode.Usoro plating na-arụ ọrụ dị ka kemistri ịsa ahụ nickel karịa bath Hex chrome.Ọ nwere mpio usoro dị warara karịa ka chrome plating hexavalent.Nke ahụ pụtara na ọtụtụ n'ime usoro usoro a ga-achịkwa nke ọma, na ọtụtụ karịa.Ịrụ ọrụ nke Trivalent Chrome dị elu karịa nke Hex.Nkwụnye ego ahụ dị mma ma nwee ike ịmasị mma.
Hexavalent chromium plating nwere ọghọm ya, agbanyeghị.A maara ya dị ka carcinogen mmadụ ma nwee ike ibute nsogbu ahụike siri ike.Cheta ihe mere Erin Brockovich mere aha ezinụlọ?Ụdị efere a na-emepụta ọtụtụ ihe ndị a na-ewere dị ize ndụ.
Trivalent chromium platingdị mma na gburugburu ebe obibi karịa chromium hexavalent;A na-anabata usoro electrodeposition ka ọ bụrụ ihe karịrị ugboro 500 na-egbu egbu karịa Chromium hexavalent.Uru dị ukwuu nke usoro chromium trivalent bụ na ọ na-agbanwe agbanwe.Nkesa plating bụ ihe edo edo, ịgbanye gbọmgbọm ga-ekwe omume maka chrome trivalent, nke na-agaghị ekwe omume na chrome hexavalent.
Hexavalent Vs Trivalent Chromium
| Ihe | Chromium hexavalent | Chromium Trivalent |
| Ọgwụgwọ mkpofu | Dị oke ọnụ | Mfe |
| Ịtụba Ike | Ogbenye | Ọ dị mma |
| Nchekwa | Enweghị nchekwa nke ukwuu | Dịtụ mma;dị ka nickel |
| Nkwenye na Mmetọ | Dị Mma | Ọ bụghị dị ka mma |
| NSS na CASS | Yiri | Yiri |
| Nguzogide ọkụ | Adịghị mma | Ọ dị ezigbo mma |
Tebụlụ na-atụnyere ụfọdụ akụrụngwa nke Hexavalent na Trivalent Chromium
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Oge nzipu: Nov-11-2023