Tlhahlobo e ncha ea molao-motheo oa ho monya mocheso oa silicon carbide graphite crucible

1. Lintho tse bonahalang le sebopeho

silicon carbide graphite crucible e hloekisitsoe ho tloha linthong tse kang graphite le silicon carbide ka mekhoa e rarahaneng, ho kopanya thepa ea bona e babatsehang. Lintho tse ka sehloohong tsa graphite li kenyelletsa:

 

Motlakase le mocheso oa mocheso: Graphite e na le motlakase o motle oa motlakase le oa mocheso, o e lumellang ho fetisetsa mocheso kapele le ho fokotsa tahlehelo ea matla libakeng tse phahameng tsa mocheso.

Botsitso ba Lik'hemik'hale: Graphite e lula e tsitsitse 'me e hanela liphetoho tsa lik'hemik'hale libakeng tse ngata tsa asiti le alkaline.

Ho hanyetsa mocheso o phahameng: Graphite e ka boloka botšepehi ba sebopeho ka nako e telele libakeng tse phahameng tsa mocheso ntle le liphetoho tse kholo ka lebaka la ho atolosoa ha mocheso kapa ho fokotseha.

Lintho tse ka sehloohong tsa silicon carbide li kenyelletsa:

 

Matla a mochini: Silicon carbide e na le boima bo phahameng le matla a mochini, 'me e hanana le ho roala ha mochini le tšusumetso.

Corrosion resistance: E bonts'a khanyetso e ntle haholo ea ho bola ha mocheso o phahameng le maemo a leholimo a senyang.

Thermal botsitso: Silicon carbide e ka boloka lik'hemik'hale tse tsitsitseng le thepa ea 'mele libakeng tse phahameng tsa mocheso.

Motsoako oa lisebelisoa tsena tse peli o thehasilicon carbide graphite crucibles, tse nang le mocheso o phahameng oa mocheso, li-conductivity tse ntle tsa mocheso le botsitso bo botle ba lik'hemik'hale, tse etsang hore e be tse loketseng bakeng sa likopo tse phahameng tsa mocheso.

 

2. Karabelo ea lik'hemik'hale le mochine oa endothermic

silicon carbide graphite crucible e sebetsana le letoto la lik'hemik'hale tsa lik'hemik'hale sebakeng se phahameng sa mocheso, se sa bontšeng feela ts'ebetso ea thepa ea crucible, empa hape ke mohloli oa bohlokoa oa ts'ebetso ea eona ea ho monya mocheso. Liphetoho tse kholo tsa lik'hemik'hale li kenyelletsa:

 

Redox reaction: Metal oxide e kopana le ntho e fokotsang (joaloka khabone) ka har'a crucible, e lokolla mocheso o mongata. Ka mohlala, iron oxide e kopana le carbon ho etsa tšepe le carbon dioxide:

 

Fe2O3 + 3C→2Fe + 3CO

Mocheso o hlahisoang ke karabelo ena o kenngoa ke crucible, e phahamisa mocheso oa eona ka kakaretso.

 

Pyrolysis reaction: Ha lithempereichara tse phahameng, lintho tse itseng li kopana le ho bola tse hlahisang limolek'hule tse nyane ebe li lokolla mocheso. Ka mohlala, calcium carbonate e bola ka mocheso o phahameng ho hlahisa calcium oxide le carbon dioxide:

 

CaCO3→CaO + CO2

Karabelo ena ea pyrolysis e boetse e ntša mocheso, o monngoang ke crucible.

 

Mouoane oa metsi: Mouoane oa metsi o kopana le khabone mochesong o phahameng ho hlahisa hydrogen le carbon monoxide:

 

H2O + C→H2 + CO

Mocheso o hlahisoang ke karabelo ena o boetse o sebelisoa ke crucible.

 

Mocheso o hlahisoang ke liphetoho tsena tsa lik'hemik'hale ke mokhoa oa bohlokoa oa hosilicon carbide graphite crucible ho monya mocheso, ho o lumella ho monya hantle le ho fetisa matla a mocheso nakong ea ho futhumatsa.

 

tharo. Tlhahlobo e tebileng ea molao-motheo oa ho sebetsa

Molao-motheo oa ho sebetsa oasilicon carbide graphite crucible ha e itšetlehe feela ka thepa ea 'mele ea thepa, empa hape e itšetlehile haholo ka tšebeliso e sebetsang ea matla a mocheso ka lik'hemik'hale tsa lik'hemik'hale. Mokhoa o khethehileng ke o latelang:

 

Heating crucible: Mohloli oa mocheso o ka ntle o futhumatsa crucible, 'me lisebelisoa tsa graphite le silicon carbide ka hare li monya mocheso kapele ebe li fihla mocheso o phahameng.

 

Chemical reaction endothermic: Ka mocheso o phahameng, lik'hemik'hale tsa lik'hemik'hale (tse kang redox reactions, pyrolysis reactions, steam reactions, joalo-joalo) li etsahala ka har'a crucible, li lokolla matla a mangata a mocheso, a kenngoa ke thepa ea crucible.

 

Thermal conductivity: Ka lebaka la ts'ebetso e ntle ea mocheso oa graphite, mocheso o ka har'a crucible o tsamaisoa ka potlako ho thepa e ka crucible, e leng se etsang hore mocheso oa eona o phahame ka potlako.

 

Ho futhumatsa ho tsoelang pele: Ha ts'ebetso ea lik'hemik'hale e ntse e tsoela pele le ho futhumatsa ka ntle ho ntse ho tsoela pele, crucible e ka boloka mocheso o phahameng 'me e fana ka matla a matla a mocheso bakeng sa lisebelisoa tse ka har'a crucible.

 

Mokhoa ona o sebetsang hantle oa ho tsamaisa mocheso le mokhoa oa ho sebelisa matla a mocheso o netefatsa ts'ebetso e phahameng easilicon carbide graphite crucible tlas'a maemo a phahameng a mocheso. Ts'ebetso ena ha e ntlafatse feela ts'ebetso ea ho futhumatsa ea crucible, empa hape e fokotsa tahlehelo ea matla, e etsa hore e sebetse ka tsela e ikhethang tlhahiso ea indasteri.

 

Tse nne. Lisebelisoa tse ncha le litaelo tsa ho ntlafatsa

Ts'ebetso e phahameng easilicon carbide graphite crucible lits'ebetsong tse sebetsang haholo-holo e itšetlehile ka tšebeliso e nepahetseng ea matla a mocheso le botsitso ba thepa. Tse latelang ke tse ling tsa lits'ebetso tse ncha le litaelo tsa ntlafatso ea nako e tlang:

 

Ho qhibilihisa tšepe e nang le mocheso o phahameng oa mocheso: Ha ho etsoa tšepe e phahameng ea mocheso o phahameng,silicon carbide graphite crucible e ka ntlafatsa ka katleho lebelo le boleng ba smelting. Ka mohlala, ha ho qhibilihisoa tšepe e entsoeng ka tšepe, koporo, aluminium le litšepe tse ling, mocheso o phahameng oa mocheso oa crucible le ho hanyetsa ha kutu ho etsa hore e khone ho mamella tšusumetso ea tšepe e qhibilihisitsoeng ea mocheso o phahameng, ho netefatsa botsitso le polokeho ea ts'ebetso ea ho qhibiliha.

 

Sekepe se phahameng sa mocheso oa lik'hemik'hale:silicon carbide graphite crucible e ka sebelisoa e le setshelo se loketseng bakeng sa liphetoho tsa lik'hemik'hale tse phahameng tsa mocheso. Ka mohlala, indastering ea lik'hemik'hale, liphetoho tse itseng tsa mocheso o phahameng li hloka likepe tse tsitsitseng haholo le tse sa jeng, le litšobotsi tsasilicon carbide graphite cruciblee fihlela litlhoko tsena ka botlalo.

 

Nts'etsopele ea lisebelisoa tse ncha: Patlisisong le nts'etsopele ea lisebelisoa tse ncha,silicon carbide graphite crucible e ka sebelisoa e le lisebelisoa tsa motheo bakeng sa ts'ebetso e phahameng ea mocheso le motsoako. Ts'ebetso ea eona e tsitsitseng le conductivity e sebetsang ea mocheso e fana ka tikoloho e ntle ea liteko le ho khothalletsa nts'etsopele ea lisebelisoa tse ncha.

 

Theknoloji ea ho boloka matla le ho fokotsa mosi: Ka ho ntlafatsa maemo a karabelo ea lik'hemik'hale tsasilicon carbide graphite crucible, ts'ebetso ea eona ea mocheso e ka ntlafatsoa le ho feta 'me tšebeliso ea matla ea fokotseha. Ka mohlala, ho kenngoa ha li-catalysts ka har'a crucible ho ithutoa ho ntlafatsa katleho ea karabelo ea redox, ka hona ho fokotsa nako ea ho futhumatsa le tšebeliso ea matla.

 

Ho kopanya le ho fetola lintho tse bonahalang: Ho kopanya le lisebelisoa tse ling tse sebetsang hantle, tse kang ho eketsa likhoele tsa ceramic kapa li-nanomaterials, li ka matlafatsa ho hanyetsa mocheso le matla a mochine.silicon carbide graphite crucibles. Ho phaella moo, ka mekhoa ea ho fetola e kang phekolo ea ho roala holim'a metsi, ho hanyetsa kutu le ho sebetsa hantle ha mocheso oa crucible ho ka ntlafatsoa le ho feta.

 

5. Qetello le litebello tsa nako e tlang

Molao-motheo oa endothermic oasilicon carbide graphite crucible ke ts'ebeliso e nepahetseng ea matla a mocheso a ipapisitseng le thepa ea ona le liphetoho tsa lik'hemik'hale. Ho utloisisa le ho ntlafatsa melao-motheo ena ho bohlokoa haholo bakeng sa ho ntlafatsa katleho ea tlhahiso ea indasteri le lipatlisiso tsa thepa. Nakong e tlang, ka tsoelo-pele e tsoelang pele ea theknoloji le nts'etsopele e tsoelang pele ea thepa e ncha,silicon carbide graphite crucibles li lebelletsoe ho bapala karolo ea bohlokoa masimong a mocheso o phahameng haholoanyane.

 

Ka boqapi bo tsoelang pele le ntlafatso,silicon carbide graphite crucible e tla tswelapele ho ntlafatsa tshebetso ya yona le ho kganna ntshetsopele ya diindaseteri tse amanang. Ho qhibilihisa tšepe e nang le mocheso o phahameng haholo, lik'hemik'hale tse phahameng tsa mocheso, le nts'etsopele ea lisebelisoa tse ncha,silicon carbide graphite crucible e tla fetoha sesebelisoa sa bohlokoahali, se thusang indasteri ea sejoale-joale le lipatlisiso tsa mahlale ho fihlela maemo a macha.