Kodi electroplating ndi chiyani?
Mwachidule, electroplating imatanthawuza njira ya electrolytic mu yankho mothandizidwa ndi kunja kwachindunji kuyika chitsulo kapena aloyi wosanjikiza pamwamba pa kondakitala monga chitsulo.
Zomwe zimatchedwa electrolytic reaction zimatanthawuza "kugwiritsa ntchito makina odabwitsa kuti apangitse kusachita modzidzimutsa kwa REDOX".
Zomwe zimagwiritsidwa ntchito pamtunda zimatha kukhala zitsulo (monga zitsulo) kapena zopanda zitsulo (monga pulasitiki).
Mitundu ya chithandizo chapamwamba:
Plating, Electroplating, Auto-catalytic Plating, Chemical Plating, Electroless Plating, Electroless Plating, Anodizing, Chemical Conversion Coating, Blackening, Phosphating, Chromating, Metal Colouring, Paint Finishing, Dip Dip (Galvanizing, Tinning, Physical Physical) ,Iyoni Plating, Chemical Vapor Deposition...
Njira zopangira electroplating:
Kuchiza:
Asanayambe plating, pamwamba pa plating, monga mafuta kapena fumbi ayenera kutsukidwa bwino. Gawo lachidziwitso chisanadze nthawi zambiri limaphatikizapo kugwiritsa ntchito kutsitsa kwa alkaline koyambirira, kutsika kwamagetsi ndi pickling kuchotsa dzimbiri ndi dzimbiri, ndi njira zina zoyatsira pamwamba. Njira yopangira chithandizo chamunthu payekha imapangidwa molingana ndi mtundu wa plating ndi njira yotsatsira. Kuphatikiza apo, zida zina zomangira monga aluminiyamu, chitsulo chosapanga dzimbiri kapena guluu wa ABS zimafunikira chisamaliro chapadera.
Kuchepetsa kutentha kwa dip:
Ndi makamaka ntchito alkali ndi saponification mafuta saponification kuchotsa zitsulo pamwamba dothi ndi oxides, amene ayenera kunyowetsa, malowedwe, kubalalitsidwa ndi emulsification zotsatira.
Zomwe zimagwiritsidwa ntchito nthawi zambiri: sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium phosphate, trisodium phosphate, sodium pyrophosphate, gluconate ndi silicate, etc. Komabe, chifukwa cha mavuto a chilengedwe, dongosolo la phosphate lidzathetsedwa pang'onopang'ono. Amagwiritsa ntchito mphamvu zamchere kuti agwiritse ntchito magawo osiyanasiyana.
The otchedwa mawonekedwe yogwira wothandizila ndi emulsifier, akhoza kugawidwa mu cationic, anionic, cationic ndi sanali ionic mawonekedwe yogwira wothandizila. Ziyenera kukhala ndi zotsatira za kubalalitsidwa ndi emulsification, kupewa mafuta akuyandama pamwamba mankhwala, kuchepetsa kuchotsa, ndi kuchepetsa vuto la wotsatira kutsuka.
Electrolytic degreasing:
Chifukwa cha electrolysis, cathode imapanga haidrojeni kuchepetsa zitsulo (mbale zosapanga dzimbiri), ndipo anode imapanga mpweya ndi oxidizes dothi (mbali); Mpweya umayendetsa ntchito yogwedeza ndikuchotsa dothi. Ntchito ya lye ndi saponify mafuta. Komabe, cathode akhoza kutulutsa zakuthupi hydrogenation, kupatuka panopa umabala zosiyanasiyana degreasing zotsatira, ndi mpweya ndi madzi chifunga kwaiye pa nthawi yomweyo chifukwa zoopsa za anthu ndi ngozi kuphulika, amene ayenera kuganizira ntchito.
Pakalipano, degreasing yotentha ndi electrolytic degreasing imagwiritsidwa ntchito palimodzi. Ubwino wa electroplating ndi wabwino kapena woipa, 50% zimadalira chithandizo chisanachitike.
Kutsegula:
General substrate activation imatchedwanso pickling, neutralization ya asidi kapena etching, kutengera mankhwala ndi zinthu zomwe zikuthandizidwa. Ikhoza kuchotsa okusayidi ndi mchere pamwamba pazitsulo, kotero kuti zitsulo zimakhala zosavuta kutseka ndi zitsulo zotsatiridwa ndi electroplating. Komabe, m'pofunika kusankha mosamala asidi ndi dzimbiri choletsa dzimbiri kupewa kukokoloka kwa gawo lapansi, kumabweretsa mavuto wotsatira electroplating.
Electroplating:
Electroplating ndi njira yoyika chitsulo chochepa kwambiri pamwamba pa kondakitala kuti azikongoletsa plating kapena kupewa dzimbiri. Electroplating wamba ku Hong Kong imaphatikizapo faifi tambala, mkuwa, mkuwa, chromium, nthaka, siliva ndi golide. Kuphatikiza pa electroplating, chithandizo chachitsulo chodziwika bwino ndi electroplating, anodizing ndi penti.
Copper plating:
Makamaka mu cyanide kusamba, sulfuric acid kusamba ndi pyrophosphoric acid kusamba. Kusamba kwa cyanide ndikoyenera kuyika chitsulo ndi zinc alloy substrate plating. Ndi wothandizira gloss woyenera, zokutira zosalala zosalala zitha kupezeka. Kufanana kwa ❖ kuyanika ndikwabwino, kukhazikika kwa plating kwakhala kukugwiritsidwa ntchito kwa zaka zambiri, koma yankho la plating lili ndi poizoni wambiri wa cyanide, kukwera mtengo kwamankhwala amadzi onyansa, kuwonjezera pa plating plating ndi pre-plating yasinthidwa pang'onopang'ono.
Kusambira kwa sulfuric acid yokhala ndi zowonjezera zoyenera, kudzaza kwambiri ndi gloss, mtengo wotsika, kasamalidwe kosavuta, mtengo wotsika wamadzi otayira, wagwiritsidwa ntchito kwambiri pama board ozungulira, zokongoletsa, electroforming ndi magawo ena.
Pyrophosphoric acid kusamba ndi abwino zina. Amagwiritsidwa ntchito mu matabwa a circuit. Komabe, mankhwala amadzi onyansa ndi ovuta, kuwonjezera pazitsulo za zinc alloy pansi, zomwe zimasinthidwa ndi kusamba kwa sulfuric acid.
Nickel plating:
Makamaka sulfuric acid kusamba, Vaz kusamba monga woimira ake, mtengo wotsika plating njira, kasamalidwe zosavuta, chimagwiritsidwa ntchito zosiyanasiyana mafakitale ndi kukongoletsa zolinga, mbali zamagetsi ndi electroforming zofunika, sulfenic asidi kusamba ndi nkhawa otsika, ductility mkulu, kusindikiza bwino. ndi mkulu ndende chilinganizo, walowa m'malo sulfuric acid kusamba.
Katundu wa gloss ndi flatness wa nickel zokutira makamaka zimadalira faifi tambala zina.
Zowonjezera nickel plating zitha kugawidwa kukhala BRIGHTENER, CARRIER ndi WETTING wothandizira. Mafupipafupi ndi kuchuluka kwa madzi omwe amawonjezeredwa kumadalira kuuma kwa gawo lapansi, makulidwe ofunidwa, ndi gloss yofunikira ndi flatness. Yankho la plating liyenera kufufuzidwa ndikuwonjezeredwa pafupipafupi kuti chigawo chilichonse chikhale chokhazikika mu njira yopangira plating kuti chikhale chokhazikika.
Gild:
Makamaka mu cyanide kusamba, ogaŵikana zamchere, ndale ndi acidic. Kuphatikiza pa ayoni agolide (omwe amadziwika kuti mchere wa golide), njira yopangira plating iyenera kukhala ndi mchere wowongolera, mchere wowongolera (mchere wonyezimira), gloss wothandizira; Komanso, wothandizira gloss akhoza kugawidwa mu organic ndi aloyi zina.
Mchere wa golidi: golide wa cyanide potassium, kuti apereke chowonjezera cha mpweya wa golide, kotero pamene golide-wokutidwa, anode nthawi zambiri amakhala anode osamveka.
Mchere wochititsa chidwi: umapereka zotsatira zochititsa chidwi muzitsulo zopangira.
Mchere wochititsa chidwi: kupereka acid-base bwino mu kusamba, conductive kwenikweni.
Gloss agent (organic): kupereka gloss ndi flatness.
Gloss agent (aloyi) : amapereka kusintha kwa mtundu, kuuma kwa ntchito.
The homogeneity wa kusamba zamchere ndi zabwino, ndipo si kophweka eutectoid ndi zitsulo ngati zonyansa. Kusamba kosalowerera ndale kumatha kupangidwa ndi eutectosed kupanga zokutira za aloyi. Kusamba kwa asidi kumatha kupanganso zokutira za aloyi, zokutira wandiweyani, zomata bwino, kuuma komanso kukana kuvala ndizabwino kwambiri, makamaka zoyenera pazigawo zamagetsi.
Postprocessing:
Ntchito yayikulu ya chithandizo pambuyo pa chithandizo ndikuwumitsa plating ndikuwunika komaliza. Nthawi zina, workpiece iyenera kusinthidwa kapena kujambula pambuyo pa electroplating kuti ipereke chitetezo.
Kuchiza filimu ndi njira yokhayo kuti ❖ kuyanika kugonjetsedwa ndi kusinthika ndi kukokoloka kwa chilengedwe. Komabe, kusamala kuyenera kuchitidwa kuti pasakhale zovuta pakulandira chithandizo. Ambiri positi processing, ayenera kuvomereza kutsitsi mchere, asidi m'munsi, kutentha ndi mayesero ena, makamaka zinthu zamtengo wapatali zitsulo, zofunika kwambiri okhwima.
Yeretsani:
Kuyeretsa ndi njira yomwe imagwiritsa ntchito madzi kwambiri popanga electroplating. Pambuyo pa plating tank iliyonse, nthawi zambiri pamakhala njira zotsuka zotchinjiriza kuti ziwiya zisatengere madzi otsalira kupita kunjira zina ndikuyambitsa kuipitsidwa.
