ʻO ka Electroplating kahi ala e hoʻoheheʻe ʻia ai ka metala mai ka electrolyte e ka hana o kahi au i hoʻopili ʻia a waiho ʻia ma ka ʻili o ka mea e loaʻa ai kahi papa uhi metala.
i hoʻopaʻa ʻia:
Hiki ke ʻino ʻia ʻo Zinc i nā ʻakika, alkalis, a me nā sulfides.Hoʻopili pinepine ʻia ka papa zinc.Ma hope o ka passivation i loko o ka chromate solution, ʻaʻole maʻalahi ke kiʻi passivation i hana ʻia me ka ea maʻemaʻe, a ua hoʻonui nui ʻia ka mana anti-corrosion.Ma ka ea maloʻo, paʻa ka zinc a ʻaʻole maʻalahi ke hoʻololi i ke kala.I loko o ka wai a me ka lewa haʻahaʻa, hana ia me ka oxygen a i ʻole carbon dioxide e hana i ka oxide a i ʻole alkaline carbonic acid film, hiki ke pale i ka zinc mai ka hoʻomau ʻana i ka oxidize a pāʻani i kahi hana pale.
Nā mea kūpono: ke kila, nā'āpana hao
chrome:
Paʻa loa ka Chromium i ka lewa haʻahaʻa, alkali, nitric acid, sulfide, carbonate solutions a me nā ʻakika organik, a hiki ke hoʻoheheʻe ʻia i loko o ka waika hydrochloric a me ka waikawa sulfuric concentrated wela.ʻO ka hemahema, ʻo ia ka paʻakikī, palupalu, a maʻalahi hoʻi e hāʻule.ʻAʻole kūpono ke kau ʻana i ka chromium ma ka ʻili o nā ʻāpana kila ma ke ʻano he anti-corrosion layer.ʻO ka mea maʻamau, hiki ke hoʻokō i ke kumu o ka pale ʻana a me ka hoʻonaninani ʻana i ka multi-layer electroplating (ie copper plating → nickel → chromium).I kēia manawa, hoʻohana nui ʻia e hoʻomaikaʻi i ka pale ʻana o nā ʻāpana, ka nui o ka hoʻoponopono ʻana, ka noʻonoʻo māmā a me ka hoʻonaninani.
Nā mea e pili ana: metala ferrous, keleawe a me ke keleawe huila zero decorative chrome plating, pale pale chrome pale lole.
Ka uhi keleawe:
ʻAʻole paʻa ke keleawe i ka lewa, a i ka manawa like, he kiʻekiʻe maikaʻi kona kūpono a ʻaʻole hiki ke pale i nā metala ʻē aʻe mai ka corrosion.Eia nō naʻe, he kiʻekiʻe ka conductivity uila o ke keleawe, paʻa a maikaʻi ka papa keleawe keleawe, ua hui pū ʻia me ka metala kumu, a he hana polishing maikaʻi. ʻO nā electroplating ʻē aʻe, ma ke ʻano he pale pale e pale ai i ka carburization, a e hōʻemi i ka friction a i ʻole nā mea hoʻonaninani ma ka bearing.
Nā mea pili: metala ʻeleʻele, keleawe a me ke keleawe me ka nickel-plated, chrome-plated lalo.
ʻO ka pā nikela:
ʻO Nickel ka paʻa kemika maikaʻi i ka lewa a me ka lye, ʻaʻole maʻalahi ke hoʻololi i ke kala, akā hiki ke maʻalahi i ka waika nitric dilute.He mea maʻalahi ka passivate i loko o ka waikawa nitric concentrated, a ʻo kona hemahema ka porosity.No ka lanakila ʻana i kēia pōʻino, hiki ke hoʻohana ʻia i ka pā metala multi-layer, a ʻo ka nickel ka papa waena.ʻO ka papa nickel plating he paʻakikī kiʻekiʻe, he maʻalahi ka poli, he kiʻekiʻe ke kukui kukui a hiki ke hoʻonui i ke ʻano a me ke kū'ē, a maikaʻi ke kūpaʻa corrosion.
Nā mea pili: hiki ke waiho ʻia ma luna o ka ʻili o nā mea like ʻole, e like me: steel-nickel-based alloys, zinc-based alloys, aluminum alloys, aniani, ceramics, plastics, semiconductors a me nā mea ʻē aʻe.
Pākuʻi kino:
He kiʻekiʻe ka paʻa kemika.ʻAʻole maʻalahi ka hoʻoheheʻe ʻana i nā hopena dilute o sulfuric acid, nitric acid a me hydrochloric acid.ʻAʻohe hopena o ka sulfide i ka tin.Paʻa nō hoʻi ka tin i nā ʻakika organik, a ʻaʻohe mea ʻawaʻawa kona pūhui.Hoʻohana nui ʻia ia i nā ipu ʻoihana meaʻai a me nā ʻāpana o ka mokulele, hoʻokele a me nā mea lekiō.Hiki ke hoʻohana ʻia no ka pale ʻana i nā uea keleawe mai ka hoʻopili ʻia ʻana e ka sulfur i ka lāʻau a ma ke ʻano he pale pale no nā ʻili non-nitriding.
Nā mea pili: hao, keleawe, aluminika a me kā lākou mau mea hoʻohui
ʻO ke kinikini keleawe:
ʻO ka copper-tin alloy electroplating ka mea e pā ai i ke keleawe-tin alloy ma nā ʻāpana me ka ʻole o ka nickel plating, akā pololei chromium plating.ʻO Nickel kahi metala kakaʻikahi a makamae.I kēia manawa, hoʻohana nui ʻia ka copper-tin alloy electroplating i ka ʻoihana electroplating e hoʻololi i ka nickel plating, nona ka mana anti-corrosion maikaʻi.
Nā mea kūpono: nā'āpana kila, nā'āpana keleawe a me ke keleawe.
Ka manawa kau: Apr-03-2023