Ukwakheka kwecrucibleizinto zokwakha kanye nokubaluleka kwazo ku-metallurgy
I-Crucible iyithuluzi elibalulekile embonini ye-metallurgical, esetshenziselwa ukuqukatha nokushisa izinsimbi ezihlukahlukene nama-alloys. Kodwa-ke, ukwakheka kwezinto ezibonakalayo ze-crucible kuthinta ngqo ukusebenza kwayo nokuphila ezindaweni ezishisa kakhulu. Ngakho-ke, ukuqonda ukwakheka kwezinto eziphambanayo kubalulekile ekukhetheni i-crucible efanele yohlelo lwe-metallurgical. Lesi sihloko sizohlola izingxenye eziyinhloko zama-crucibles kanye nokubaluleka kwazo ekusetshenzisweni kwe-metallurgical.
1.I-graphite crucible
I-graphite crucible ingenye yezinhlobo ezivame kakhulu. Ngenxa yokumelana kahle nezinga lokushisa eliphezulu kanye nokuzinza kwamakhemikhali, isetshenziswa kakhulu ekuncibilikisweni kwezinsimbi ezingenayo ayoni njenge-aluminium, ithusi, negolide. Ingxenye eyinhloko ye-graphite crucible yi-carbon, ene-conductivity enhle kakhulu yokushisa, evumela insimbi ukuba ishise ngokushesha futhi ngokulinganayo, ngaleyo ndlela inciphise isikhathi sokuncibilika. Ngaphezu kwalokho, i-graphite crucible inokumelana nokugqwala okuhle futhi ingamelana nokuguguleka kwezinto eziningi ezincibilikisiwe ezine-asidi ne-alkaline.
2.Silicon carbide crucible
I-silicon carbide crucibles ithandwa yimboni ye-metallurgical ngobulukhuni bayo obuhle kakhulu kanye nokumelana ne-oxidation. I-Silicon carbide iyinto eqinile kakhulu engamelana namazinga okushisa aphakeme kakhulu ngaphandle kokonakala. Uma kuqhathaniswa nama-graphite crucibles, ama-silicon carbide crucibles anempilo yesevisi ende futhi afaneleka ngokukhethekile ukuncibilika kwensimbi, insimbi nezinye izinsimbi ezisezingeni eliphezulu. Ngaphezu kwalokho, impahla ye-silicon carbide inokuqina okuhle kokuthuthumela okushisayo, inciphisa ingozi yokulimala ku-crucible ngenxa yezinguquko ezisheshayo zokushisa.
3. I-Ceramic crucible
I-Ceramic crucibles yenziwe ngokuyinhloko ngezinto zobumba ezifana ne-alumina ne-zirconia. Lawa ma-crucible akhombisa ukungangeni kahle kwamakhemikhali futhi afanele ukucubungula izinsimbi nama-alloys agqwala kakhulu kwezinye izinto. Izinga eliphezulu lokuncibilika kwezikhilimu ze-ceramic lizenza zikwazi ukuhlala zizinzile ngaphansi kwezimo zokushisa eziphakeme kakhulu futhi zisetshenziswa kabanzi kumalabhorethri nakwezinye izinhlelo zokusebenza ezikhethekile zezimboni. Kodwa-ke, izinsimbi ze-ceramic ziqinile futhi zidinga ukuphathwa ngokucophelela ngesikhathi sokusetshenziswa ukugwema ukuphuka ngenxa yomthelela wemishini.
4. Izinsimbi zensimbi
Izinsimbi zensimbi zivame ukusetshenziswa emisebenzini emikhulu yokuncibilikisa insimbi, njengama-foundries. Izinsimbi zensimbi ngokuvamile zenziwe ngama-alloys ensimbi angashisi futhi zinamandla amahle kakhulu okusebenza kanye nokumelana nokushisa okuphezulu. Nakuba izinsimbi zensimbi zingasebenzi ngendlela eshisayo njenge-graphite crucibles, zingakwazi ukumelana nokushaqeka okuphawulekayo ngokomzimba, okuzenza zifanelekele imisebenzi yokuncibilika edinga ukulayishwa njalo nokuthulula noma ukudluliselwa.
5. Ezinye izinto
Ngokungeziwe ezintweni ezijwayelekile zokubhoboza ezishiwo ngenhla, kukhona nezinto ezithile ezikhethekile ezisetshenziselwa izinjongo ezithile. Isibonelo, ama-tungsten crucibles avame ukusetshenziswa ekuhlolweni kwezinga lokushisa eliphezulu ngenxa yephoyinti lokuncibilika eliphezulu kakhulu kanye nokungagqwali. I-Titanium crucibles isetshenziselwa ukuncibilikisa ama-alloys akhethekile ngoba ayisabeli ngezinsimbi eziningi.
Ekuphetheni
Ukubunjwa kwezinto ezibonakalayo kwe-crucible akugcini nje ukunquma ukuzinza nokuqina kwayo ezindaweni zokushisa okuphezulu, kodwa futhi kuthinta ngokuqondile ukusebenza kahle nokuphepha kwenqubo yokuncibilika. Ngakho-ke, lapho ukhetha i-crucible, izakhiwo zamakhemikhali zezinto ezibonakalayo, ukuqhutshwa kokushisa, amandla omshini kanye nempilo yesevisi kufanele kucatshangelwe ngokusekelwe ezidingweni ezithile zohlelo lokusebenza. Ama-crucibles ezinto ezihlukene adlala indima engenakushintshwa embonini ye-metallurgical, ehlinzeka ngesiqinisekiso esithembekile sokucutshungulwa kwensimbi okuphumelelayo nokuphephile.
Isikhathi sokuthumela: Aug-30-2024