Uru na ọghọm dị na Trivalent Chromium Plating

Nke mbụ, gịnị bụ Trivalent?

Ọ bụ aihe eji achọ chrome plating, nke nwere ike inye ọkọ na nguzogide corrosion na nhọrọ agba dị iche iche.Trivalent chromea na-ewere ya dị ka ihe enyi na enyi na-agbanwe agbanwe na chromium hexavalent.

Ọzọ, Ka anyị lebakwuo anya na usoro a ka anyị ghọta uru na ọghọm ya.

Uru:

Uru nketrivalent chromium usoroN'ime usoro chromium hexavalent bụ nchegbu gburugburu ebe obibi pere mpe n'ihi nsi dị ala nke chromium trivalent, nrụpụta dị elu, yana ọnụ ahịa ọrụ dị ala.

N'ime usoro chromium trivalent, chromium hexavalent bụ ihe na-emetọ bat.Ya mere, bat ahụ enweghị ego chromium hexavalent bara uru.Ngụkọta mkpokọta chromium nke ngwọta chromium trivalent bụ ihe dị ka otu ụzọ n'ụzọ ise nke ngwọta chromium hexavalent.

N'ihi kemistri nke trivalent chromium electrolyte, misting anaghị eme n'oge plating dị ka ọ na-eme n'oge hexavalent chromium plating.Iji trivalent chromium na-ebelatakwa nsogbu mkpofu mkpofu na ọnụ ahịa.

Ihe ọghọm:

Ọdịmma nke trivalent chromium usoro bụ na usoro a na-enwe mmetụta karịa mmetọ karịa usoro chromium hexavalent, na usoro trivalent chromium enweghị ike ịgbanye oke nha nke efere nke usoro chromium hexavalent nwere ike.N'ihi na ọ na-enwe mmetụta maka mmetọ, usoro trivalent chromium chọrọ nchacha nke ọma yana njikwa ụlọ nyocha siri ike karịa usoro chromium hexavalent.Baths ịsa ahụ chromium trivalent nwere ike ịsa ọkpụrụkpụ nke ruru 0.13 ruo 25 µm.Enweghị ike iji ya maka ọtụtụ ngwa plating chromium siri ike.

Emepụtala baths ịsa ahụ chromium electroplating nke trivalent iji dochie baths hexavalent chromium plating ịchọ mma.Mmepe nke bat trivalent egosila na ọ siri ike n'ihi na trivalent chromium na-agbaze na mmiri iji mepụta ion siri ike siri ike nke na-adịghị ahapụ chromium ngwa ngwa.Ugbu a, enwere usoro chromium trivalent abụọ n'ahịa: otu cell na cell abụọ.Isi ihe dị iche n'ime usoro abụọ a bụ na usoro nhazi mkpụrụ ndụ abụọ nwere obere chlorides na-enweghị chlorides, ebe ngwọta nke otu cell nwere nnukwu chlorides.

Na mgbakwunye, usoro mkpụrụ ndụ abụọ ahụ na-eji anodes ndu na-etinye n'ime igbe anode nke nwere ihe ngwọta sulfuric acid na-agbaze ma na-ejikọta ya na akpụkpọ ahụ nke na-eme ka ọ dị mfe, ebe usoro otu cell na-eji carbon ma ọ bụ graphite anodes na-etinye na kọntaktị kpọmkwem. ngwọta plating.Nkọwa gbasara usoro ndị a adịghị n'ihi na ịsa ahụ chromium trivalent ugbu a na ahịa bụ nke nwe ya.

Nke a bụ uru dị mkpa maka Trivalent chrome:

· Enyi na gburugburu ebe obibi - uzuoku na-egbu egbu pere mpe karịa plating hexavalent

sludge mkpofu dị obere

Ọnụ ego ọgwụgwọ mmiri dị ala

· Iwu nnwale ole na ole yana ụgwọ emetụtara

Ihe ndọghachi azụ bụ ndị a:

Obere ego dị elu na kemịkalụ & mmezi dị iche na plating hexavalent.

· Ihe isi ike na nhọrọ anode

· Ngwakọta ngwọta mgbagwoju anya

· Ihe isi ike na mkpuchi ọkpụrụkpụ mmụba