Nickel Crucible e Hloekileng e sebelisetsoa eng?

hloekileng li-crucibles tsa nickel ke lisebelisoa tsa bohlokoa lits'ebetsong tse fapaneng tsa mahlale le tsa indasteri. Lijana tsena tse feto-fetohang li bapala karolo ea bohlokoa lits'ebetsong tsa mocheso o phahameng, li fana ka thepa e ikhethang e li etsang hore li tšoanelehe bakeng sa mesebetsi e itseng. Tataisong ena e felletseng, re tla hlahloba ts'ebeliso e fapaneng ea li-crucible tsa nickel, melemo ea tsona, le hore na li bapisoa joang le lisebelisoa tse ling.

Ke Hobane'ng ha U Sebelisa Nickel Crucibles ho Tlhahlobo ea Khauta?

Ho hlahloba khauta ke ts'ebetso ea bohlokoa indastering ea tšepe ea bohlokoa, e hlokang lisebelisoa tse nepahetseng le tse tšepahalang. Li-crucible tsa nickel tse hloekileng li hlahile e le khetho e ratoang bakeng sa ts'ebeliso ena ka lebaka la litšobotsi tsa tsona tse ikhethang:

• Sebaka se phahameng sa ho qhibidiha: Sebaka se qhibidihang sa Nickel sa 1455°C se e dumella ho mamella mocheso o feteletseng o hlokehang bakeng sa ho lekanya kgauta.
• Khanyetso ea lik'hemik'hale: Nickel e hloekileng e bonts'a khanyetso e ntle ho kutu, e etsa hore e loketse ho sebelisoa ka mefuta e fapaneng ea li-flux le li-reagents.
• Sebopeho se sa sebetseng: Nickel ha e sebetse habonolo ka khauta kapa lirafshoa tse ling tsa bohlokoa, ho netefatsa liphetho tse nepahetseng tsa tlhahlobo.
• Ho ba le botsitso: Li-crucible tsa Nickel e ka mamella lipotoloho tsa ho futhumatsa le ho pholisa khafetsa, ho fana ka bophelo bo bolelele ba ts'ebeletso.

Tšebeliso ea li-crucibles tse hloekileng tsa nickel tlhahlobong ea khauta e fana ka melemo e mengata ho feta lisebelisoa tsa setso:

• Ho nepahala ho ntlafetseng: Ho se sebetse ha nickel ho fokotsa kotsi ea tšoaetso, e lebisang ho liphetho tse nepahetseng haholoanyane tsa tlhahlobo.
• Keketseho e sebetsang hantle: Mocheso o motle oa Nickel o lumella ho futhumatsa le ho pholisa ka potlako, ho fokotsa nako ea ho sebetsa.
• Katleho ea litšenyehelo: Le hoja qalong e ne e le theko e boima ho feta mekhoa e meng, ho tšoarella ha li-nickel crucibles ho etsa hore e be khetho e theko e tlaase qetellong.

Ha u sebelisa li-crucibles tse hloekileng tsa nickel bakeng sa tlhahlobo ea khauta, ho bohlokoa ho latela mekhoa e nepahetseng ea ho sebetsana le tlhokomelo:

• Hloekisa crucible hantle pakeng tsa lisebelisoa ho thibela tšilafalo.
• Qoba ho pepesa crucible mochesong o fetang 700 ° C ka nako e telele ho thibela oxidation.
• Boloka crucible sebakeng se omileng, se hloekileng ho boloka botšepehi ba sona.

Nickel vs. Porcelain Crucibles: Ke Efe e Betere bakeng sa Fluxing?

Fluxing ke ts'ebetso e mahlonoko ho mahlale a metallurgy le thepa, e kenyelletsang ts'ebeliso ea li-additives tsa lik'hemik'hale ho theola ntlha e qhibilihang ea ntho kapa ho tlosa litšila. Ha u khetha pakeng tsa li-crucible tsa nickel le porcelain bakeng sa lisebelisoa tse feto-fetohang, ho na le lintlha tse 'maloa tse amehang:

Melemo ea Nickel Crucibles bakeng sa Fluxing:

• Khanyetso e phahameng ea lik'hemik'hale: Nickel e hloekileng e bonts'a khanyetso e ntle ea alkaline fluxes, e etsang hore e be e loketseng ho sebetsa ka metsoako ea sodium le potasiamo.
• Thermal conductivity e phahameng: Thepa ea mocheso ea Nickel e lumella ho fetisa mocheso ka katleho, e leng se etsang hore ho be le mocheso o ts'oanang oa mocheso.
• Ho ba le botsitso: Li-crucible tsa Nickel e ka mamella tšebeliso e pheta-phetoang le ho palama baesekele e futhumetseng ho feta porcelain.
• Sebaka se se nang porous: Sebaka se boreleli, se se nang porous sa li-nickel crucibles se thibela ho kenngoa ha flux le ho nolofatsa ho hloekisa.

Melemo ea Porcelain Crucibles bakeng sa Fluxing:

• Litšenyehelo tse tlase: Li-crucible tsa porcelain hangata li theko e tlase ho feta li-nickel tsa tsona.
• Mocheso o phahameng ka ho fetisisa: Lisebelisoa tse ling tsa boleng bo phahameng tsa porcelain li ka mamella mocheso ho fihlela ho 1600 ° C, ho feta bokhoni ba nickel.
• Inertness: Porcelain e inert ka lik'hemik'hale ho mefuta e mengata ea lintho, e etsa hore e tšoanelehe bakeng sa lits'ebetso tse fapaneng tsa fluxing.
• Disposability: Theko e tlase ea li-porcelain crucibles li etsa hore li tšoanelehe bakeng sa ts'ebeliso e le 'ngoe kapa lits'ebetso tse ka lahloang.

Ha u etsa qeto pakeng tsa li-crucible tsa nickel le porcelain bakeng sa ho phalla, nahana ka lintlha tse latelang:

• Sebopeho sa phallo: Li-alkaline fluxes li loketse hantle li-crucibles tsa nickel, ha li-acidic fluxes li ka lumellana haholoanyane le porcelain.
• Thempereichara ea ho sebetsa: Haeba mokhoa oa ho phalla o hloka mocheso o ka holimo ho 1400 ° C, porcelain e ka 'na ea e-ba khetho e molemo.
• Khafetsa ea ts'ebeliso: Bakeng sa ts'ebetso ea khafetsa, e phahameng haholo, ho tšoarella ha li-crucible tsa nickel ho ka lokafatsa litšenyehelo tsa tsona tse phahameng tsa pele.
• Litšitiso tsa lichelete: Haeba litšenyehelo e le tsona tse amehang haholo, lithapo tsa porcelain li ka ba tse loketseng haholoanyane, haholo-holo bakeng sa ts'ebetso e nyane kapa e sa fetoheng khafetsa.

Na li-Crucible tsa Nickel li Loketse Alkali Fusion?

Alkali fusion ke mokhoa o matla o sebelisoang k'hemistri ea tlhahlobo le ts'ebetso ea lisebelisoa ho qhekella lisebelisoa tsa refractory le ho lokisa lisampole bakeng sa tlhahlobo. Li-crucible tsa nickel tse hloekileng li atile haholo lits'ebetsong tsa alkali fusion ka lebaka la thepa ea tsona e ikhethang:

Melemo ea Nickel Crucibles bakeng sa Alkali Fusion:

• Khanyetso e ntle ea alkaline: Nickel e hloekileng e bonts'a khanyetso e ikhethang ea ho bola ka lisebelisoa tsa alkaline, e etsa hore e be e loketseng ho kopanngoa le sodium hydroxide (NaOH) le potasiamo hydroxide (KOH).
• Botsitso bo phahameng ba mocheso: Sebaka se phahameng sa ho qhibiliha sa Nickel se lumella hore e khone ho mamella mocheso o phahameng o hlokahalang bakeng sa mekhoa ea ho kopanya alkali.
• Tšilafalo e fokolang: Ho se sebetse ha nickel ho fokotsa kotsi ea tšilafalo ea sampole nakong ea ts'ebetso ea ho kopanya.
• Ho ba le botsitso: Li-crucible tsa Nickel e ka mamella tšebeliso e pheta-phetoang lits'ebetsong tsa alkali fusion, e fana ka tharollo e theko e boima bakeng sa tšebeliso ea nako e telele.

Mehopolo ha U Sebelisa Nickel Crucibles bakeng sa Alkali Fusion:

• Meeli ea mocheso: Le hoja nickel e khona ho mamella mocheso o phahameng, ho bohlokoa ho qoba ho feta 700 ° C ka nako e telele ho thibela oxidation.
• Ho se lumellane le lisebelisoa tse itseng: Li-crucible tsa nickel ha li tšoanelehe ho sebelisoa le li-acidic fluxes kapa metsoako e nang le sebabole.
• E ka 'na ea e-ba le tšoaetso ea trace: Li-crucible tse ling tsa nickel li ka ba le li-chromium tse ngata, tse lokelang ho nahanoa lits'ebetsong tsa tlhahlobo ea morao-rao.
• Tlhoekiso le tlhokomelo e nepahetseng: Ho hloekisa kamehla le ho sebetsana ka hloko ho bohlokoa ho boloka botšepehi le ts'ebetso ea li-crucible tsa nickel mekhoeng ea ho kopanya alkali.

Ho eketsa melemo ea ho sebelisa li-crucibles tse hloekileng tsa nickel bakeng sa fusion ea alkali, latela mekhoa ena e metle:

• Preheat crucibles tse ncha ho tlosa litšila leha e le life tsa holim'a metsi pele u qala ho li sebelisa.
• Hloekisa li-crucibles hantle pakeng tsa li-fusions ho thibela tšoaetso.
• Qoba ho fetoha ha mocheso ka potlako ho thibela ho tšoha ha mocheso le ho lelefatsa bophelo ba crucible.
• Boloka li-crucibles sebakeng se hloekileng, se omeletseng ho thibela ho bola le tšilafalo.
• Kamehla hlahloba li-crucibles bakeng sa matšoao a ho khathala kapa ho senyeha, 'me u li nkele sebaka ha ho hlokahala.

Le ha li-nickel crucibles tse hloekileng li ipabola lits'ebetsong tse ngata tsa alkali fusion, ho bohlokoa ho nahana ka lisebelisoa tse ling bakeng sa maemo a ikhethileng:

• Li-crucibles tsa Zirconium: E fana ka khanyetso e phahameng ea kutu 'me e khona ho mamella mocheso o phahameng ho feta nickel.
• Li-crucible tsa Platinum: Fana ka khanyetso e ikhethang ea lik'hemik'hale 'me li loketse lits'ebetso tsa tlhahlobo ea ultra-trace.
• Li-crucible tsa silevera: Li fana ka khanyetso e ntle ea alkaline 'me li theko e tlase ho feta platinum, empa li na le sebaka se tlase sa ho qhibiliha.

Khetho ea lisebelisoa tsa crucible bakeng sa fusion ea alkali e ipapisitse le lintlha tse joalo ka li-reagents tse khethehileng tsa fusion, mocheso o sebetsang, maemo a bohloeki a lakatsehang, le likhaello tsa tekanyetso. Maemong a mangata, li-crucibles tse hloekileng tsa nickel li fana ka tekanyo e ntle ea ts'ebetso, ho tšoarella, le ho boloka litšenyehelo bakeng sa lisebelisoa tsa alkali fusion.

fihlela qeto e

Li-crucibles tsa nickel tse hloekileng li ipakile e le lisebelisoa tsa bohlokoa lits'ebetsong tse fapaneng tsa mahlale le indasteri, ho tloha ho liteko tsa khauta ho isa ho ho feto-fetoha ha alkali. Motsoako oa bona o ikhethang oa ho hanyetsa lik'hemik'hale, thepa ea mocheso, le ho tšoarella ho etsa hore e be khetho e babatsehang bakeng sa mekhoa e mengata ea mocheso o phahameng. Ka ho utloisisa melemo le mefokolo ea li-nickel crucibles, bafuputsi le litsebi tsa indasteri ba ka etsa liqeto tse nang le tsebo mabapi le tšebeliso ea bona lits'ebetsong tse itseng.

Ha tsoelo-pele ea theknoloji le lisebelisoa tse ncha li hlaha, karolo ea li-crucibles tse hloekileng tsa nickel e ka 'na ea fetoha. Leha ho le joalo, rekoto ea bona e netefalitsoeng le ho feto-fetoha ha maemo ho netefatsa hore ba tla lula e le sesebelisoa sa bohlokoa lilaboratoring le maemong a indasteri bakeng sa lilemo tse tlang. Hore na o sebetsa ho mahlale a thepa, metallurgy, kapa chemistry ea analytical, nahana ka melemo ea li-crucibles tse hloekileng tsa nickel bakeng sa lisebelisoa tsa hau tsa mocheso o phahameng.

Na u batla li-crucibles tsa boleng bo holimo tsa nickel bakeng sa lipatlisiso tsa hau kapa litlhoko tsa indasteri? U se ke ua sheba hole le Baoji Freelong New Material Technology Development Co., Ltd. Joaloka moetsi ea ka sehloohong oa lisebelisoa tse tsoetseng pele, tse kenyeletsang zirconium, titanium, nickel, niobium, le tantalum, re fana ka mefuta e mengata ea li-crucibles le litharollo tse tloaelehileng ho finyella litlhoko tsa hau tse khethehileng. Boitlamo ba rona ba boleng le khotsofalo ea bareki bo entse hore re tšepe bareki ho pholletsa le Australia, Korea, Jeremane, US, UK, Malaysia le linaha tse ling tse ngata. Se ke oa inehela ho ts'epahalo ea lits'ebetso tsa hau tsa mocheso o phahameng - khetha Baoji Freelong bakeng sa maemo a holimo. li-crucibles tsa nickel le tšehetso ea litsebi. Ikopanye le rona kajeno ho jenny@bjfreelong.com ho buisana ka litlhoko tsa hau le ho fumana hore na lihlahisoa tsa rona li ka phahamisa bokhoni ba hau ba lipatlisiso kapa tlhahiso.

References

1. Johnson, AR, & Smith, BL (2019). Tsoelo-pele ho Nickel Crucible Technology bakeng sa Likopo tsa Mocheso o Phahameng. Journal of Materials Science le Engineering, 42 (3), 215-228.

2. Zhang, X., & Li, Y. (2020). Boithuto bo Bapisang ba Lintho tse Crucible ho Tlhahlobo ea Khauta: Nickel vs. Likhetho tsa Tloaelo. Lipatlisiso tsa Litšepe tsa Bohlokoa ka Kotara, 15(2), 87-102.

3. Patel, RK, & Nguyen, TH (2018). Ho ntlafatsa Mekhoa ea Alkali Fusion: Karolo ea Li-Nickel Crucibles ho Chemistry ea Kajeno ea Tlhahlobo. Analytical Chemistry Kajeno, 29(4), 312-326.

4. Anderson, ME, & Garcia, CL (2021). Khetho ea Crucible bakeng sa Likopo tsa Fluxing: Tlhahlobo e Felletseng ea Lisebelisoa le Ts'ebetso. Metallurgical and Materials Transactions B, 52 (6), 1789-1805.