ʻO ka hōʻuluʻulu manaʻo o ka titanium anodes
ʻO ka Titanium / Tantalum / Niobium-based platinum plated anode process, me ka hoʻohana ʻana i ka electroplating a i ʻole ka hoʻopili ʻana i ke kaʻina hana, ʻo ke ʻano he keʻokeʻo kālā keʻokeʻo, me nā hiʻohiʻona o ka anode nui e hoʻokuʻu i kēia manawa a me ke ola lawelawe lōʻihi.
Platinized titanium anodes synergistically hoʻohui i nā hiʻohiʻona electrochemical maikaʻi o ka platinum (Pt) me ke kūpaʻa corrosion a me nā ʻano ʻē aʻe o ka titanium. He anodes maʻamau ia e ka hoʻoheheʻe electrochemical o kahi ʻāpana lahilahi o ka metala platinum a i ʻole nā oxides o ka platinum ma luna o kahi substrate titanium. Ke hana nei kēia mau anodes ma ke ʻano he anodes inert me ka lōʻihi kiʻekiʻe a makemake ʻia no ka mea hiki ʻole ke hoʻoheheʻe ʻia i nā electrolytes maʻamau.
ʻO Platinum kahi metala makamae i ʻike ʻia no kāna mau hiʻohiʻona maikaʻi ʻole, me
- Kū'ē kiʻekiʻe i ka corrosion
- Kū'ē i ka oxidation
- Kiʻekiʻe uila conductivity
- Hiki ke hana ma ke ʻano he catalyst
- Paʻa kemika kiʻekiʻe
- ʻO ka hiki ke hana i kahi hopena maikaʻi loa
ʻO ka haʻahaʻa haʻahaʻa i kākoʻo ʻia e ka conductivity uila kiʻekiʻe e hana i ka platinum i mea anode makemake. Akā ma muli o kona kumukūʻai kiʻekiʻe, ʻo kahi ʻāpana lahilahi wale nō o ka platinum ka mea maʻamau i hoʻopaʻa ʻia ma luna o nā mea pale ʻino like ʻole e like me tantalum (Ta), niobium (Nb) a i ʻole titanium (Ti) e hoʻohana i kēia mau hiʻohiʻona maikaʻi.
Platinized titanium anodes hana ʻenehana
Ma ke kaʻina hana electroplating a i ʻole ka hoʻopalapala ʻana (e like me ka platinum coating sintering manufacturing process) ka platinum metala ma ka titanium (tantalum, niobium), hiki ke hana ʻia kahi ʻāpana metala hui ma luna o ka substrate. Aia kēia composite i ka metala titanium, platinum, oxides o ka titanium a me nā pūhui metala o ka titanium a me ka platinum.
ʻO ke kaʻina hana hoʻoheheʻe ʻana o ka platinum coating: hana mākou i ka platinized titanium anode ma o ka hoʻohana ʻana i ke kaʻina decomposition thermal e kiʻi i kahi papa paʻa paʻa o ka uhi platinum. Hoʻololi ʻia ka ʻili anode e hoʻomaikaʻi i ka pili ʻana o ka platinum a me ka hoʻomaikaʻi nui ʻana i ka like ʻole o ka mānoanoa o ka uhi ʻana, e hōʻemi hoʻi i ka porosity uhi e hāʻawi ana i ka nui o ka pale ʻana i ka anode. , ʻO ke kaʻina hana o ka wela i ka uhi ʻana i hoʻohui ʻia e hoʻololi i ka haku mele a me ka morphology e hoʻomaikaʻi ai i kāna mau waiwai electrochemical. Hiki ke hana ʻia kēia anode titanium i hoʻopaʻa ʻia i ka platinum i loko o ka bar, koʻokoʻo, ka lau, mesh a me nā ʻano hana ʻē aʻe e hoʻokō i kāu mau pono kūikawā.
ʻO ka hana kemika o nā anodes titanium platinized
ʻOi ʻia ka Platinum ma ka ʻaoʻao o waho o ka anode no ka mea ua kūpaʻa loa ia i ka ʻino a hiki ke hōʻoia i ke kahe ʻana o kēia manawa i ka hapa nui o nā media electrolyte me ke alakaʻi ʻole i ke kūkulu ʻana i kahi papa insulating ma luna ona. No ka mea, ʻaʻole ia e ʻino, ʻaʻole ia e hana i nā huahana corrosion a no laila ua haʻahaʻa loa ka helu hoʻohana.
ʻAʻole inert ka Platinum i nā paʻakai a me nā waikawa i hoʻohui ʻia, akā ua hoʻoheheʻe ʻia i loko o ka wai regia. ʻAʻohe pilikia o ka embrittlement hydrogen. (Hiki iā ʻoe ke aʻo e pili ana i ka hydrogen embrittlement ma ka ʻatikala He Introduction to Hydrogen Embrittlement.) ʻO ia kekahi o nā metala liʻiliʻi e pale pono i nā chlorides o ke kai.
Hōʻike ka Titanium i ke kūpaʻa maikaʻi ʻana i kahi kaiapuni kai (ka wai kai). ʻAʻole ia e hoʻopili me nā mea hoʻonā (80%) o nā chlorides metala. Eia nō naʻe, hiki ke hoʻouka ʻia e ka waika hydrofluoric (HF) a me ka waika hydrochloric wela (HCl) o nā kiʻekiʻe kiʻekiʻe. Hiki i ka hydrogen peroxide a me ka wai nitric wela ke hoʻouka i ka titanium. ʻAʻole maʻamau ka hoʻouka ʻana o nā mea hoʻoheheʻe i ka titanium no ka mea hiki iā ia ke hana i kahi uhi pale oxide. Eia nō naʻe, hiki i nā mea non-oxidizing e like me ka sulfuric acid (ma luna o 5% ka nui) a me ka phosphoric acid (ma luna o 30%) hiki ke hoʻouka i ka titanium. Mai kahi hiʻohiʻona hydrogen embrittlement, ʻoi aku ka maikaʻi o ka titanium ma mua o ka tantalum ma ke ʻano he anode.
Nā pōmaikaʻi o nā anodes titanium platinized
Loaʻa ka Platinum i nā pono o ka electrochemical inertness, mechanical strength, workability and favorable electrical conductivity. Eia naʻe, pāpā ʻia ke kumukūʻai. ʻO ka hoʻomohala ʻana o ka platinum ma ka titanium a me ka platinum ma ka tantalum (plated as cladded) mea i wehe i ka hiki ke hoʻohana i kēia mau mea no nā mea anode no ka hoʻopau metala a me nā ʻōnaehana pale cathodic i nā noi koʻikoʻi.
Ke hoʻohana ʻia no nā anodes i loko o ka pā wai e like me ka wai kai, hoʻokumu ka titanium i kahi paʻa paʻa o ke kiʻi ʻoniʻoni insulating oxide ma ka ʻili i paʻa ma lalo o kahi voli haʻihaʻi, pēlā e pale ai i ke kahe o kēia manawa ma waena o ka media aqueous a me ka anode. I ka moana kai, hiki i ka oxide i hana ʻia ma ka titanium ke kū i ka 12 volts, ma waho aʻe o ka haki ʻana o ka pale insulating a hoʻomaka ke kahe o kēia manawa i ke kaʻina hana corrosion.
Nā hiʻohiʻona o nā anodes titanium platinized
- paʻa mau ka geometry titanium anodes i ka manawa.
- Mālama i ka ikehu.
- Kūleʻa kino kiʻekiʻe.
- ʻO ke kūpaʻa kiʻekiʻe a me ke kūpaʻa ukana.
- ʻO nā pae kiʻekiʻe o ka hoʻopili ʻana o ka uhi metala makamae.
- Hoʻomaikaʻi i ka pale ʻana i ka hoʻouka ʻana i ka waikawa.
- Hoʻonui ka throughput me ka hōʻemi ʻana i nā manawa plating.
- ʻO ke kaumaha māmā (ʻoi loa ka anode mesh grid).
- Ke ola hana lōʻihi; mālama ʻole.
- ʻO ke ola lōʻihi ma lalo o ke kiʻekiʻe kiʻekiʻe o kēia manawa i nā hāʻina waikawa.
- E hana i ka anode paʻakikī.
- ʻO ke kū'ēʻana i ka hoʻohaʻahaʻaʻiaʻana e nā waihona.
Ka hoʻohana ʻana i nā anodes titanium platinized
- Horizontal plating, pulu pulupulu;
- ʻO ka ʻauʻau ʻauʻau ʻau, Pd, Rh a me Ru;
- ʻAʻohe-ferrous metala electroplating - e laʻa me Ni, Cu, Sn, Zn a me non-fluoride Cr bath;
- Paʻi ʻia nā papa kaapuni electroplating;
- Palekana Cathodic i kēia manawa.
Hiki iā mākou ke hana i nā anodes platinized titanium (a i ʻole Ta, Nb) o nā papa, mesh, tubes, a i ʻole e hana ʻia e like me nā koi o ka mea kūʻai aku.