Sekoahelo sa silicon carbideke sesebelisoa sa bohlokoa sa ho qhibilihisa indastering ea metallurgic. Ka lebaka la ho hanyetsa mocheso o phahameng haholo le ho tsamaisa mocheso, e sebelisoa haholo mefuteng e sa tšoaneng ea ho qhibilihisa tšepe le lik'hemik'hale. Leha ho le joalo, ho netefatsa ts'ebetso e nepahetseng nakong ea ts'ebeliso, li-crucible tsa silicon carbide li hloka ho futhumatsoa ka nepo.
Mehato ea ho futhumatsa pele bakeng sa silicon carbide crucible
Li-silicone carbide crucibles li hloka tlhokomelo e khethehileng nakong ea preheating ho thibela mathata a kang ho atolosoa ha mocheso, ho fokotseha ka tlaase, ho senya kapa ho phunyeha ho bakoang ke mongobo o setseng. Mehato e khethehileng ke e latelang:
Ho baka ka lekhetlo la pele: Bake ka ontong ntle le ho eketsa lisebelisoa, 'me u boloke mocheso ho feta lihora tse 24. Nakong ea ts'ebetso ena, potoloha crucible kamehla ho etsa bonnete ba hore ho futhumala ka mokhoa o ts'oanang le ho tlosa mongobo ka ho feletseng marakong a crucible.
Butle-butle mocheso:
Pele, futhumatsa crucible ho likhato tse 150 ho isa ho tse 200 tsa Celsius 'me u tšoare hora e le' ngoe.
Ebe, eketsa mocheso ka sekhahla sa likhato tse 150 tsa Celsius ka hora ho fihlela mocheso o phahameng o fihla. Nakong ea ts'ebetso ena, qoba ho tlohela marako a crucible mocheso o pakeng tsa 315 le 650 likhato tsa Celsius ka nako e telele haholo, kaha crucible e tla oxidize ka potlako sebakeng sena sa mocheso, e khutsufatsa bophelo ba eona le ho fokotsa mocheso oa eona oa mocheso.
Kalafo e phahameng ea mocheso:
Ka mor'a hore preheating e phethoe, ntle le haeba crucible e pepesehetse tikolohong ea mongobo hape, ha e hloke ho futhumatsoa hape 'me e ka tsoela pele ho sebelisoa.
Ka mor'a hore preheating e phethoe, ka potlako phahamisa mocheso ho 850 ~ 950 likhato tsa Celsius, e boloke e futhumetse halofo ea hora ntle le ho eketsa lisebelisoa, ebe o pholile mocheso o tloaelehileng oa ho sebetsa 'me u qale ho eketsa lisebelisoa. Kalafo ena e ka lelefatsa bophelo ba tšebeletso ea crucible ka katleho.
Mekhoa e meng ea preprocessing
Ntle le mehato e kaholimo ea ho futhumatsa, mekhoa e latelang e ka sebelisoa hape:
Preheat haufi le secheso sa oli: Ho beha crucible haufi le mollo oa oli ho ka thusa ho tlosa mongobo.
Mashala a tukang kapa patsi: Ho chesa mashala kapa patsi ka har'a crucible ho ka thusa ho tlosa mongobo.
Ho khetha boholo bo nepahetseng ba crucible
Litekanyo tsa silicon carbide crucible li fapana ho latela moetsi le ts'ebeliso e khethehileng. Ka hona, ha u khetha, ka kopo sheba lintlha tse khethehileng tsa sehlahisoa kapa u buisane le mofani oa thepa bakeng sa lintlha tse nepahetseng. Ho khetha crucible e nepahetseng ho latela litlhoko tsa hau ho ka ntlafatsa katleho ea tlhahiso le boleng ba sehlahisoa.
Ka ho latela mekhoa e nepahetseng ea ho futhumatsa le ho sebetsa, li-silicon carbide crucibles li ka eketsa ts'ebetso ea tsona le ho lelefatsa bophelo ba bona ba tšebeletso, ho fana ka tiiso e ka tšeptjoang bakeng sa ts'ebetso ea hau ea tlhahiso.
Graphite Crucible User Guide
Li-crucible tsa graphite li boetse li sebelisoa haholo litekong tse phahameng tsa mocheso le tlhahiso ea indasteri. Ho hanyetsa mocheso oa eona o phahameng, ho hanyetsa kutu, le conductivity e ntle ea mocheso e etsa hore e be e loketseng bakeng sa liteko tse ngata le mekhoa ea tlhahiso. E le ho netefatsa ts'ebetso e ntle ka ho fetisisa le bophelo bo bolelele ba tšebeletso ea graphite crucible, mehato e latelang e lokela ho lebisoa tlhokomelo nakong ea tšebeliso:
Ho beha mohlala
Sampole e tiileng: Abela lintho tsa teko ka mokhoa o leka-lekaneng kapa thepa e tala ka har'a graphite crucible ho qoba mocheso o feteletseng kapa ho fafatsa.
Mehlala ea metsi: Sebelisa dropper kapa sesebelisoa se seng sa micro-sampling ho akhela mokelikeli ka har'a crucible ho qoba ho fafatsa kapa ho silafatsa bokantle ba crucible.
ts'ebetso ea ho futhumatsa
mokhoa oa ho futhumatsa:
Sebelisa lisebelisoa tse futhumatsang tsa motlakase, mocheso oa mahlaseli a infrared kapa mekhoa e meng e loketseng ea ho futhumatsa ho futhumatsa crucible ea graphite.
Qoba ho futhumatsa ka ho toba ka lelakabe le bulehileng. Hobane graphite e hloekileng haholo e na le mocheso o phahameng oa mocheso, ho futhumatsa ka ho toba ka lelakabe le bulehileng ho ka 'na ha etsa hore crucible e fokotsehe kapa e phunye.
Lebelo la ho futhumatsa:
Boloka mocheso o loketseng ho qoba ho senya crucible ka lebaka la liphetoho tsa tšohanyetso tsa mocheso.
Fetola boemo le matla a sesebelisoa sa ho futhumatsa ho netefatsa hore crucible e futhumala ka ho lekana.
Mehato ya tlhokomelo
Qoba ho kopana ka ho toba le lelakabe: Ha u futhumatsa, qoba ho kopana ka ho toba le lelakabe ho qoba ho siea matšoao a matšo ka tlas'a crucible kapa ho baka tšenyo e 'ngoe.
Taolo ea mocheso: Graphite crucible e na le maikutlo a ho fetoha ha mocheso, kahoo mocheso oa mocheso o tlameha ho laoloa nakong ea tšebeliso ho qoba ho phatloha ha crucible ka lebaka la mocheso o phahameng haholo kapa o tlaase haholo.
Bohloeki ba tikoloho le polokeho: Boloka tikoloho e potolohileng e hloekile 'me u qobe tšenyo ea graphite crucible ka lebaka la tšusumetso kapa ho oa ho tloha holimo.
Ts'ehetso ea data ea litsebi
Thermal conductivity: Thermal conductivity of high-purity graphite crucible ke hoo e ka bang 100-300 W / m·K, e leng se nolofalletsang ho fetisetsa mocheso ka potlako mocheso o phahameng le ho fokotsa khatello ea maikutlo ea mocheso oa mocheso holim'a crucible.
Mocheso o sebetsang: Graphite crucible e na le mocheso o phahameng oa ho hanyetsa mocheso, mocheso o phahameng oa ho sebetsa o ka fihla ho 3000 ° C, 'me o sebelisoa hamolemo sebakeng se se nang moea.
Khanyetso ea oxidation: Ha e sebelisoa ka mocheso o phahameng moeeng, bokaholimo ba graphite crucible bo atisa ho ba le oxidation. Mehato ea ts'ireletso e kang ho sebelisa anti-oxidation coating kapa ho sebelisa tšireletso ea khase e sa sebetseng e lokela ho nkoa.
Ho khomarela ka tieo mekhoa le litemoso tse ka holimo ho ka netefatsa katleho e phahameng le bophelo bo bolelele ba li-graphite crucibles le.li-crucibles tsa silicon carbide, ka tsela eo ho ntlafatsa botšepehi le boleng ba liteko le tlhahiso.
Nako ea poso: Jul-11-2024