Electro-less nickel plating: Zonse Zomwe Muyenera Kudziwa

Kusintha komaliza 08/31, nthawi yowerengera: 6 min

Magawo okhala ndi Electroless nickel plating

Nickel ndi chitsulo chachisanu chomwe chimapezeka padziko lonse lapansi, chowoneka chonyezimira, cholimba kwambiri, komanso zinthu zosagwirizana ndi dzimbiri, zomwe zimapangitsa kuti ikhale yabwino yotchingira pamwamba pa zinthu zina.Zotsatira zake, Nickel ndiye njira yabwino kwambiri yopangira zitsulo zosiyanasiyana mongaaluminium, chitsulo, mkuwa, tungsten, polima, ndi zina zambiri.Electroless Nickel platingndi njira yodziwika bwino yopangira mankhwala kuchokera ku yankho lomwe lili ndi nickel, sulphate, phosphate, ndi carbolic acid.Zothetsera izi zimasakanizidwa ndikutenthedwa musanapitirize ndi plating.Njirayi yakhala ikugwiritsidwa ntchito pamakampani opanga zinthu kwazaka zopitilira 50, kotero mutha kulingalira momwe imatchukapamwamba kumaliza ntchito.

Mayankho Ogwiritsidwa Ntchito mu Electroless Nickel Plating

Pali mankhwala osiyanasiyana omwe amagwiritsidwa ntchito popanga nickel electroless.Tiyeni timvetsetse aliyense wa iwo kudzera mu tebulo loyerekeza lowerengera pansipa;

Kodi Zimagwira Ntchito Bwanji?

Mfundo yogwira ntchito

Apa, ma electro-less amatanthauza kuti palibe chapano chomwe chimagwiritsidwa ntchito popanga plating.M'malo mwake, chochepetsera chimapereka ma elekitironi kuti achepetse ayoni zitsulo, zomwe zimapangitsa mphamvu yoponya kwambiri.Nickel ion (2e +) mu yankho, pochita ndi chochepetsera (2e-), ikani Nickel pamwamba pa gawo lapansi.

Ni²⁺(kuchokera ku nickel salt solution) +2e- (kuchokera kwa Reducing agent) = Ni (pa gawo lapansi)

Masitepe a Electroless Nickel Plating

Gawo 1: Konzekerani plating

Chinthu choyamba ndikuyeretsa zigawo zomwe ziyenera kuphimbidwa kotero kuti kuipitsidwa kulikonse, monga fumbi, mafuta, slags, mafuta, mafuta, ndi mankhwala aliwonse pamtunda, kutsukidwa, kukonzekera kumamatira kwa nickel.Kumene amagwiritsidwa ntchito zoyeretsera monga sulfuric acid ndi hydrochloric acid, amatsukidwa ndi madzi osungunula mu bafa yotentha kuti achepetse asidi ndi kuteteza kuti asawononge pamwamba.

Khwerero 2: Kuchiza pamadzi osamba

Chithandizo-chomera cha electroless nickel plating

Pambuyo poyeretsa zigawozo ndikukonzekera madzi osambira, njira yopangira plating ingayambe.Ziwalozo tsopano zamizidwa mubafa la nickel plating lomwe lili ndi ndalama zabwino.Zinthu zomwe ziyenera kuphimbidwa zimakopa ma ion a nickel okhala ndi mphamvu zowoneka bwino, zomwe zimapangitsa kuti pakhale zokutira.Chifukwa plating ya nickel yopanda ma elekitirodi sifunikira gwero lamagetsi, kutentha kwa malo osamba ndizomwe zimasinthasintha pakuwongolera (70 mpaka 90).⁰C amakondedwa).

Makulidwe a nickel wosanjikiza woyikidwa amasiyana pakati pa 5 ndi 25 ma microns pa ola.Komabe, chifukwa palibe panopa ndipo ndi autocatalytic plating ndondomeko, palibe malire amenewa makulidwe;pamene nthawi ya chithandizo ikuwonjezeka, momwemonso makulidwe a deposition.

Gawo 3: Pambuyo pokonza

Pambuyo pokonza siteji, tinthu tating'onoting'ono ndi zotsalira zimachotsedwa ndikutsuka ndi asidi, alkali, ndi surfactant solution.Kenako, kumaliza kwina, monga kupukuta, kupukuta, ndi zina, kumagwiritsidwa ntchito malinga ndi zofunikira.

Zomwe Zimayambitsa mu Electroless Nickel Plating

Zinthu zingapo zimakhudza zotsatira za nickel electroless plating, yomwe imayenera kuyendetsedwa kuti ikwaniritse bwino kumalizidwa kwapamwamba.

1.          Kupanda ungwiro pamwamba

Kuyika kwa nickel kumakhudzidwa ndi zolakwika zapamtunda monga ma burrs, slags, ndi dzimbiri lopangidwa kale.Chifukwa chake lingaliro labwino ndikukumbukira zinthu izi mukamakonza ndikuchotsa zolakwikazo ndikuchotsa.

2.          Ukhondo wa pamwamba

Musanapitirire ndi nickel plating, fumbi, mafuta, kapena sopo zopangidwa ndi saponification wa mafuta ndi zotsukira zamchere ziyenera kuchotsedwa.Ngati kuyeretsa pamwamba sikunachitike bwino, wosanjikiza wa Nickel ukhoza kusweka kapena kuwonongeka pakapita nthawi.

3.          Mtengo wapatali wa magawo PH

Kusunga mtengo wa PH ndikofunikira kuti pakhale nickel plating pogwiritsa ntchito njira yopanda magetsi.PH sikelo iyenera kukhala pakati pa 3.8 ndi 5. Mu yankho, zikuyembekezeredwa kuti pH imakonda kukwera pamene nthawi ikupita, choncho njira zokhazikika komanso zowonongeka ziyenera kugwiritsidwa ntchito kuti PH ikhale yokhazikika panthawi yonse ya chithandizo.

Pamene PH ikukwera, ayoni ambiri a hydroxide amapangidwa, omwe amalumikizana ndi nickel ions ndikupanga nickel hydroxide, yomwe imakhala ndi mtundu wobiriwira wobiriwira.

4.          Kuchuluka kwa Nickel ion

Njira yamchere yomwe imagwiritsidwa ntchito popangira mankhwala ndi gwero la nickel ion lomwe limayikidwa pamtunda wapansi.Chifukwa chake, ngati ndende ya nickel ion ndi yotsika, plating imayamba pang'onopang'ono.Komabe, ndende yokwera kwambiri imayikidwa mwachangu, koma kuyika kwake kudzakhala kofanana.Muyezo wamtundu wa faifi tambala uli pakati20 ndi 45 g / l.

5.          Kutentha

Kutentha kwa kusamba kwamankhwala kumafunika kukhala pakati70 ndi 90⁰C.Kutentha kumakwera, zigawo zina zonunkhira za zowonjezera zimasungunuka, zomwe zimafuna nthawi yochulukirapo kuti zisungidwe.

Ubwino wake

Monga njira zina zomangira ndi kumalizitsa pamwamba, phindu lalikulu ndikuti zinthu zokutidwa ndi zinthu zomwe zimakutidwa ndi dzimbiri zimakhala zolimba kwambiri komanso zimapirira zovuta zachilengedwe.Koma, kuwonjezera apo, plating ya nickel yopanda electroless ili ndi maubwino ena ambiri.Tiyeni tione mwatsatanetsatane ubwino wina.

Mtengo wotsika

Chimodzi mwazinthu zotsika mtengo pakumaliza kwa plating ndi mtengo wamagetsi.Komabe, popeza plating ya nickel yopanda magetsi sifunikira gwero lamagetsi, ndiyotsika mtengo kuposa njira zina, monga plating ya zinki.

Kupaka yunifolomu

Kuyika kwa faifi wamagetsi kopanda magetsi kumapangitsa kuti pagawo la gawo lapansi pakhale zokutira kofanana.Kutentha, mtengo wa PH pakusamba kwa plating, kuchuluka kwa nickel ion, nthawi yamankhwala, ndi zinthu zina zambiri zitha kuwongoleredwa kuti mukwaniritse makulidwe ofunikira a nickel plating.

Dimensional kusasinthasintha

Chifukwa mpaka makulidwe a 5-micron plating ndizotheka, sizikhudza kulolerana kofunikira pazigawo.

Kuuma

Phosphorous m'madzi osambiramo amakhudza kuuma kwa ziwalo zopukutidwa.Kutsika kwa phosphorous kumawonjezera kuuma pomwe kumachepetsa kukana kwa dzimbiri kwa plating layer.

Kukonza pang'ono pamwamba

Electroless nickel plating kumathandizanso kukonza ming'alu yaying'ono pamtunda wapansi panthaka.Chifukwa chake, zitha kukhala zopindulitsa kwambiri kuyika ma plate nooks, crannies, ndi mipata yakhungu yokhala ndi makulidwe ofanana.

Zokongola ndi zopindulitsa zina

Mtundu wonyezimira wonyezimira wa nickel plating umapereka kukongola kokongola kwa pats ndi zinthu.Kuphatikiza apo, ndizovuta kwambiri.Izo sikutanthauza zovuta kusefera ndondomeko.Masiku ano, zida zopangira zokha zimapezeka m'makampani opanga zinthu, zomwe zimapangitsa kuti zikhale zosavuta kuwongolera njirayi.

Mapulogalamu

Ma electroless nickel plating process amathandizira ku mafakitale osiyanasiyana kuti zigawo zawo zisawonongeke komanso kuti zikhale zolimba.M'munsimu muli mafakitale ofunikira omwe plating ya nickel imagwiritsidwa ntchito;

Mapeto

Electroless nickel plating ndi njira yapadera yomalizitsira zinthu zambiri, kuphatikiza chitsulo, mkuwa, mkuwa, aluminiyamu, pulasitiki, ndi zina zambiri.Nickel plating imathandizira kulimba popereka kukana kwa dzimbiri pamtunda wapansi panthaka.Kuonjezera apo, chifukwa Nickel ali ndi mtundu wonyezimira wachikasu woyera, amapereka kukongola kokongola.Kuphatikiza apo, plating itha kuchitidwa ndi kapena popanda electrolysis, onani kusiyana pakatiElectroplating ndi Electro-less plating.

Chifukwa pali mankhwala ambiri komanso othandizira pakuchitapo kanthu, plating ya nickel yopanda magetsi ikhoza kusokoneza anthu ambiri, makamaka omwe alibe.chidziwitso chaukadaulo cha engineering chemistry.Komabe, apaPulogalamu ya ProleanHub, mainjiniya athu ndi akatswiri agwira ntchito paukadaulo womaliza, kuphatikiza plating ya nickel yopanda electroless, kwazaka zopitilira khumi.Chifukwa chake, amvetsetsa kapangidwe kake ndi njira yoyenera mukangofotokoza zomwe mukufuna ndikugwiritsa ntchito.

FAQs

Kodi nickel plating ndi chiyani?

Ndi imodzi mwa njira zomalizitsira pamwamba pomwe fakitale ya Nickel imayikidwa pagawo laling'ono pogwiritsa ntchito mphamvu zamagetsi & popanda kugwiritsa ntchito magetsi.

Ndi njira ziwiri ziti zomwe zimagwiritsidwa ntchito popanga nickel plating?

Yankho la mchere wokhala ndi ma nickel ions & Reducing agent ndi njira ziwiri zazikulu zomwe zimagwiritsidwa ntchito popanga izi.

Kodi ndi zinthu ziti zomwe zimagwiritsidwa ntchito kwambiri zokutidwa ndi nickel plating?

Njira imeneyi imagwiritsidwa ntchito povala zitsulo za alloy, zitsulo zosapanga dzimbiri, mkuwa wa aluminiyamu, mkuwa, mkuwa, ndi mapulasitiki.

Kodi ndi zinthu ziti zomwe zimakhudza mtundu wa nickel plating?

Kutentha & PH ya kusamba kwa plating, Nthawi yochizira, kuyeretsedwa kwa gawo lapansi, ndi kuchuluka kwa nickel ion mu yankho ndizinthu zazikulu zomwe zimakhudza zotsatira za plating.