① Ho fokotsa mafura
1. Mosebetsi: Tlosa matheba a mafura a mafura le litšila tse ling tse phelang holim'a thepa ho fumana phello e ntle ea electroplating le ho thibela tšilafalo ho mekhoa e latelang.
2. Lebelo la taolo ea mocheso: 40 ~ 60 ℃
3. Mokhoa oa ts'ebetso:
Ka thuso ea saponification le emulsification ea tharollo, morero oa ho tlosa matheba a oli o ka finyelloa.
Ho tlosoa ha oli ea liphoofolo le limela ho itšetlehile haholo ka karabelo ea saponification.Seo ho thoeng ke saponification ke ts'ebetso ea lik'hemik'hale tsa lik'hemik'hale pakeng tsa oli le alkali ka har'a mokelikeli o senyang ho hlahisa sesepa.Oli eo qalong e neng e sa qhibidiha ka metsing e bolwa ho ba sesepa le glycerin tse qhibidihang metsing, ebe di a tloswa.
4. Litaba tse hlokang ho hlokomeloa:
1) Ultrasonic oscillation e ka ntlafatsa phello ea degreasing.
2) Ha mahloriso a phofo ea degreasing e sa lekana, phello ea ho fokotsa e ke ke ea finyelloa;ha mahloriso a le holimo haholo, tahlehelo e tla ba kholoanyane 'me litšenyehelo li tla eketseha, kahoo e hloka ho laoloa ka har'a sebaka se lekaneng.
3) Ha mocheso o sa lekana, phello ea ho fokotseha ha e ntle.Ho eketsa mocheso ho ka fokotsa tsitsipano ea holim'a tharollo le mafura le ho potlakisa phello ea ho fokotseha;ha mocheso o phahame haholo, thepa e atisa ho fetoha.Mocheso o tlameha ho laoloa ka thata nakong ea ts'ebetso.
4) Ka mor'a ts'ebetso ea ho senya, bokaholimo ba thepa bo lokela ho kolobisoa ka ho feletseng.Haeba ho na le ho hanyetsa ho totobetseng pakeng tsa marotholi a metsi le sebopeho sa thepa, ho bolela hore ts'ebetso ha e e-s'o fihlelle litlhoko.Pheta ts'ebetso 'me u fetole li-parameter ka nako.
②Ho ruruha
Mokhoa oa ts'ebetso:
Moemeli oa ho ruruha o eketsa mosebetsi oa ho sebetsa ho finyella micro-corrosion, ha o ntse o nolofatsa thepa ka boeona, o lokolla khatello e sa lekaneng e bakoang ke ho bōptjoa ha ente kapa lintho tse bonahalang, e le hore mokhoa o latelang oa roughening o ka ba ka mokhoa o ts'oanang le oa ho senyeha hantle.
Mokhoa oa ho hlahloba khatello ea ka hare ea thepa ea electroplating e tla ba e fapaneng bakeng sa lisebelisoa tse fapaneng.Bakeng sa ABS, mokhoa oa ho qoelisa oa glacial acetic acid hangata o sebelisoa.
③Ho khopisa
1. Lebelo la taolo ea mocheso: 63 ~ 69 ℃
2. Plastiki ea ABS ke terpolymer ea acrylonitrile (A), butadiene (B) le styrene (S).Nakong ea ts'ebetso ea roughening, likaroloana tsa polasetiki li na le ho etsa likoti, ho etsa hore holim'a metsi a hydrophobic ho hydrophilic, e le hore lesela la plating le khomarele karolo ea polasetiki 'me le khomarele ka thata.
Mehato ya tlhokomelo:
1) Tharollo e phahameng ea chromium e na le ho qhibiliha ka potlako le lebelo le mahoashe le ho khomarela hantle;empa ha boleng ba chromic acid le sulfuric acid bo feta 800 g / L, tharollo e tla fokotseha, kahoo hoa hlokahala ho boloka khase e ntse e tsoela pele.
2) Ha mahloriso a sa lekana, phello e matla e mpe;ha mahloriso a le holimo haholo, ho bonolo ho feta-mahoashe, ho senya thepa, le ho ntša tahlehelo e kholo le ho eketsa litšenyehelo.
3) Ha mocheso o sa lekane, phello ea roughening ha e ntle, 'me ha mocheso o le holimo haholo, thepa e atisa ho fetoha.
④ Neutralization (karolo e kholo ke hydrochloric acid)
1. Mosebetsi: Hloekisa chromium e hexavalent e setseng ka har'a li-micropores tsa thepa ka mor'a hore e be thata le ho bola ho thibela tšilafalo ts'ebetsong e latelang.
2. Mokhoa oa ts'ebetso: Nakong ea ts'ebetso ea roughening, likaroloana tsa rabara tsa thepa lia qhibiliha, li etsa likoti, 'me ho tla ba le mokelikeli o thata o setseng ka hare.Hobane ion ea chromium e hexavalent ka har'a mokelikeli o thata o na le lintho tse matla tsa oxidizing, e tla silafatsa ts'ebetso e latelang.Hydrochloric acid e ka e fokotsa ho trivalent chromium ions, kahoo e lahleheloa ke thepa ea oxidizing.
3. Litaba tse hlokang ho hlokomeloa:
1) Hydrochloric acid e bonolo ho volatilize, ho tsosoa ha khase ho ka ntlafatsa phello ea ho se nke lehlakore le ho hloekisa, empa phallo ea moea ha e bonolo ho ba kholo haholo, e le ho qoba tahlehelo ea hydrochloric acid volatilization.
2) Ha mahloriso a sa lekana, phello ea ho hloekisa e fokola;ha mahloriso a le holimo haholo, tahlehelo ea ts'ebetso e kholoanyane mme litšenyehelo lia eketseha.
3) Ho phahama ha mocheso ho ka ntlafatsa phello ea ho hloekisa.Ha mocheso o phahame haholo, tahlehelo ea volatilization e tla ba khōlō, e leng ho tla eketsa litšenyehelo le ho silafatsa moea.
4) Nakong ea ts'ebeliso, li-ion tsa trivalent chromium li tla bokella le ho eketseha.Ha mokelikeli o le botala bo lefifi, ho bolela hore ho na le li-ion tse ngata tsa trivalent chromium 'me li lokela ho nkeloa sebaka khafetsa.
⑤ Ketso (catalysis)
1. Mosebetsi: Beha lera la colloidal palladium e nang le ts'ebetso e matla holim'a thepa.
2. Mokhoa oa ts'ebetso: li-polymers tse nang le lihlopha tse sebetsang li ka etsa li-complexes tse nang le li-ion tsa bohlokoa tsa tšepe.
3. Litlhokomelo:
1) Se ke oa hlohlelletsa mokelikeli o sebetsang, ho seng joalo o tla etsa hore activator e bola.
2) Ho eketseha ha mocheso ho ka eketsa phello ea ho teba ha palladium.Ha mocheso o phahame haholo, activator e tla bola.
3) Ha mahloriso a activator a sa lekana, phello ea pula ea palladium ha e lekane;ha mahloriso a le holimo haholo, tahlehelo ea ts'ebetso e kholo 'me litšenyehelo lia eketseha.
⑥ nickel ea lik'hemik'hale
1. Lebelo la taolo ea mocheso: 25 ~ 40 ℃
2. Mosebetsi: Beha lesela le ts'oanang la tšepe holim'a thepa, e le hore thepa e fetohe ho tloha ho motho eo e seng mokhanni ho ea ho mokhanni.
3. Litaba tse hlokang ho hlokomeloa:
1) Hypophosphorous acid ke ntho e fokotsang nickel.Ha litaba li phahame, lebelo la deposition le tla eketseha 'me lesela la plating le tla ba lefifi, empa botsitso ba tharollo ea plating bo tla fokola,' me bo tla potlakisa sekhahla sa moloko oa li-radicals tsa hypophosphite, 'me tharollo ea plating e tla ba bonolo ho senyeha.
2) Ha mocheso o ntse o eketseha, sekhahla sa deposition sa tharollo ea plating sea eketseha.Ha mocheso o le holimo haholo, hobane sekhahla sa deposition se potlakile haholo, tharollo ea plating e na le tšekamelo ea ho itšehla thajana mme bophelo ba tharollo bo khutsufatsoe.
3) Boleng ba pH bo tlase, lebelo la sedimentation la tharollo le ea butle, 'me lebelo la sedimentation le eketseha ha pH e eketseha.Ha boleng ba PH bo phahame haholo, seaparo se kenngoa ka potlako haholo 'me ha se teteane ka ho lekaneng,' me likaroloana li atisa ho hlahisoa.
Nako ea poso: Mar-27-2023