① Ragewa
1. Aiki: Cire mai mai mai mai mai da sauran datti a saman kayan don samun sakamako mai kyau na electroplating da kuma hana gurbatawa zuwa matakai na gaba.
2. Yanayin sarrafa zafin jiki: 40 ~ 60 ℃
3. Tsarin aiki:
Tare da taimakon saponification da emulsification na maganin, ana iya cimma manufar kawar da tabo mai.
Kawar da dabba da kayan lambu mai ya dogara ne akan saponification dauki.Abin da ake kira saponification shine tsarin amsawar sinadarai tsakanin mai da alkali a cikin ruwa mai lalata don samar da sabulu.Man da asalinsa ba ya narkewa a cikin ruwa yana bazuwa zuwa sabulu da glycerin da ke narkewa a cikin ruwa, sannan a cire.
4. Abubuwan da ke buƙatar kulawa:
1) Ultrasonic oscillation na iya haɓaka tasirin ragewa.
2) Lokacin da ƙaddamar da ƙwayar foda ba ta isa ba, ba za a iya samun sakamako mai lalacewa ba;lokacin da maida hankali ya yi yawa, asarar zai fi girma kuma farashin zai karu, don haka yana buƙatar sarrafawa a cikin kewayon da ya dace.
3) Lokacin da zafin jiki bai isa ba, tasirin ragewa ba shi da kyau.Ƙara yawan zafin jiki zai iya rage yanayin tashin hankali na bayani da man shafawa da kuma hanzarta tasirin raguwa;lokacin da yawan zafin jiki ya yi yawa, kayan yana da wuyar lalacewa.Dole ne a sarrafa zafin jiki sosai yayin aiki.
4) Bayan tsari na raguwa, saman kayan ya kamata a jika gaba daya.Idan akwai tsangwama a fili tsakanin ɗigon ruwa da ƙirar kayan aiki, yana nufin cewa aikin bai cika buƙatun ba.Maimaita aikin kuma daidaita sigogi cikin lokaci.
②Kumburi
Tsarin aiki:
A kumburi wakili faɗaɗa workpiece cimma surface micro-lalata, yayin da softening kayan da kanta, sakewa da m danniya lalacewa ta hanyar allura gyare-gyare ko abu, sabõda haka, m roughening tsari na iya zama uniformly kuma da lalata.
Hanyar duba danniya na ciki na kayan lantarki na lantarki zai bambanta don kayan daban-daban.Ga ABS, ana amfani da hanyar tsoma ruwan glacial acetic acid gabaɗaya.
③Karfafawa
1. Yanayin sarrafa zafin jiki: 63 ~ 69 ℃
2. ABS filastik shine terpolymer na acrylonitrile (A), butadiene (B) da styrene (S).A lokacin roughening tsari, da roba barbashi suna dauke da su samar da ramummuka, yin surface hydrophobic zuwa hydrophilic, sabõda haka, plating Layer adheres zuwa filastik part kuma yana da tabbaci bonded.
Matakan kariya:
1) High chromium bayani yana da sauri narkewa da coarsening gudun da kyau shafi mannewa;amma lokacin da darajar chromic acid da sulfuric acid ya fi 800 g / L, maganin zai yi zafi, don haka wajibi ne a ci gaba da motsawar gas.
2) Lokacin da maida hankali bai isa ba, tasirin haɓaka ba shi da kyau;lokacin da maida hankali ya yi yawa, yana da sauƙi don haɓakawa, lalata kayan aiki, da kuma fitar da babban hasara da ƙara yawan farashi.
3) Lokacin da zafin jiki bai isa ba, tasirin roughening ba shi da kyau, kuma lokacin da yawan zafin jiki ya yi yawa, kayan yana da haɗari ga lalacewa.
④ Neutralization (babban bangaren shine hydrochloric acid)
1. Aiki: Tsaftace hexavalent chromium da ke cikin micropores na kayan bayan roughening da lalata don hana gurbatawa zuwa tsari na gaba.
2. Mechanism of Action: A lokacin roughening tsari, kayan roba barbashi suna narkar da tafi, kafa rami, kuma za a sami roughening ruwa saura a ciki.Saboda hexavalent chromium ion a cikin roughening ruwa yana da karfi oxidizing kaddarorin, zai gurɓatar da na gaba tsari.Hydrochloric acid zai iya rage shi zuwa ions chromium trivalent, ta haka ya rasa kaddarorin oxidizing.
3. Abubuwan da ke buƙatar kulawa:
1) Hydrochloric acid yana da sauƙi don daidaitawa, motsawar iskar gas na iya haɓaka tasirin tsaka-tsaki da tsaftacewa, amma iska ba ta da sauƙi don zama babba, don kauce wa asarar hydrochloric acid volatilization.
2) Lokacin da maida hankali bai isa ba, tasirin tsaftacewa ba shi da kyau;lokacin da maida hankali ya yi yawa, asarar aiwatarwa ya fi girma kuma farashin yana ƙaruwa.
3) Hawan zafin jiki na iya haɓaka tasirin tsaftacewa.Lokacin da yawan zafin jiki ya yi yawa, asarar rashin daidaituwa za ta yi girma, wanda zai kara yawan farashi kuma ya gurbata iska.
4) A lokacin amfani, trivalent chromium ions za su taru da karuwa.Lokacin da ruwan ya yi duhu kore, yana nufin cewa akwai ions chromium trivalent da yawa kuma yakamata a maye gurbinsu akai-akai.
⑤ Kunnawa (catalysis)
1. Aiki: Saka wani Layer na colloidal palladium tare da catalytic aiki a saman kayan.
2. Hanyar aiki: polymers dauke da ƙungiyoyi masu aiki zasu iya samar da hadaddun tare da ions karfe masu daraja.
3. Hattara:
1) Kada a motsa ruwa mai kunnawa, in ba haka ba zai sa mai kunnawa ya rushe.
2) Ƙara yawan zafin jiki zai iya ƙara tasirin palladium nutsewa.Lokacin da zafin jiki ya yi yawa, mai kunnawa zai bazu.
3) Lokacin da maida hankali na mai kunnawa bai isa ba, tasirin hazo na palladium bai isa ba;lokacin da maida hankali ya yi yawa, asarar aiwatarwa yana da girma kuma farashin yana ƙaruwa.
Sinadarin nickel
1. Yanayin sarrafa zafin jiki: 25 ~ 40 ℃
2. Aiki: Ajiye wani nau'in ƙarfe mai daidaituwa a saman kayan, don abin da ya canza daga mai ba da jagoranci zuwa mai gudanarwa.
3. Abubuwan da ke buƙatar kulawa:
1) Hypophosphorous acid ne mai rage rage nickel.Lokacin da abun ciki ya yi girma, saurin ƙaddamarwa zai ƙaru kuma Layer na plating zai zama duhu, amma kwanciyar hankali na bayani na plating zai zama mara kyau, kuma zai hanzarta ƙaddamar da ƙwayar hypophosphite radicals, kuma maganin plating zai zama mai sauƙi don lalata.
2) Yayin da yawan zafin jiki ya karu, ƙimar ajiya na bayani na plating yana ƙaruwa.Lokacin da yawan zafin jiki ya yi yawa, saboda adadin ajiyar kuɗi yana da sauri, maganin plating yana da wuyar bazuwar kansa kuma rayuwar mafita ta gajarta.
3) Ƙimar pH ba ta da ƙasa, ƙwayar maganin ƙwayar cuta yana jinkirin, kuma saurin haɓaka yana ƙaruwa lokacin da pH ya karu.Lokacin da darajar PH ya yi girma, ana ajiye murfin da sauri kuma ba mai yawa ba, kuma barbashi suna da wuya a samar.
Lokacin aikawa: Maris 27-2023