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Ukuqulunqwa kwei-crucibleizixhobo kunye nokubaluleka kwazo kwi-metallurgy

I-Crucible sisixhobo esiyimfuneko kwishishini le-metallurgical, esetyenziselwa ukuqulatha kunye nokutshisa iintsimbi ezahlukeneyo kunye ne-alloys. Nangona kunjalo, ukubunjwa kwezinto eziphathekayo kwi-crucible kuchaphazela ngokuthe ngqo ukusebenza kwayo kunye nobomi kwiindawo eziphezulu zokushisa. Ngoko ke, ukuqonda ukubunjwa kwezinto ezinqamlekileyo kubalulekile ekukhetheni i-crucible efanelekileyo kwi-metallurgical application. Eli nqaku liza kuphonononga amacandelo ezinto eziphambili zee-crucibles kunye nokubaluleka kwazo kwizicelo ze-metallurgical.

1.I-Graphite crucible
I-graphite crucible yenye yeentlobo eziqhelekileyo. Ngenxa yokumelana nobushushu obuphezulu kunye nokuzinza kweekhemikhali, isetyenziswa kakhulu ekunyibilikiseni iintsimbi ezingenayo intsimbi ezifana ne-aluminiyam, ubhedu, kunye negolide. Icandelo eliphambili lezinto eziphathekayo ze-graphite crucible yikhabhoni, ene-conductivity egqwesileyo ye-thermal, evumela ukuba isinyithi sifudunyezwe ngokukhawuleza nangokulinganayo, ngaloo ndlela sinciphisa ixesha lokunyibilikisa. Ukongeza, i-graphite crucible inokumelana ne-corrosion kwaye inokumelana nokukhukuliseka kwezinto ezininzi ezine-acidic kunye ne-alkaline etyhidiweyo.

2.I-Silicon carbide crucible
I-silicon ye-carbide crucibles ithandwa yi-metallurgical industry ngenxa yobunzima babo obubalaseleyo kunye nokumelana ne-oxidation. I-silicon carbide yinto enzima kakhulu enokumelana namaqondo obushushu aphezulu ngaphandle kokonakala. Xa kuthelekiswa ne-graphite crucibles, i-silicon carbide crucibles inobomi obude benkonzo kwaye ifaneleke ngokukodwa kwisinyithi esinyibilikayo, isinyithi kunye nezinye iintsimbi eziphezulu zokushisa. Ukongezelela, izinto ze-silicon carbide zinozinzo oluhle lokutshatyalaliswa kwe-thermal, ukunciphisa umngcipheko wokulimala kwi-crucible ngenxa yokutshintsha kweqondo lokushisa ngokukhawuleza.

3. I-Ceramic crucible
Izibonda ze-Ceramic zenziwe ikakhulu ngezinto ze-ceramic ezifana ne-alumina kunye ne-zirconia. Ezi crucibles zibonisa ukungazinzi kweekhemikhali okugqwesileyo kwaye zifanelekile ukusetyenzwa kwesinyithi kunye ne-alloys ezonakalisa kakhulu ezinye izinto. Iqondo eliphezulu lokunyibilika kwee-ceramic crucibles libenza bahlale bezinzile phantsi kweemeko ze-ultra-high kwaye zisetyenziswa ngokubanzi kwiibhubhoratri kunye nezinye izicelo ezikhethekileyo zoshishino. Nangona kunjalo, ii-ceramic crucibles zincinci kwaye zifuna ukuphathwa ngononophelo ngexesha lokusetyenziswa ukuphepha ukuphuka ngenxa yempembelelo yomatshini.

4. Intsimbi yentsimbi
Iintsimbi zentsimbi zidla ngokusetyenziswa kwimisebenzi emikhulu yokunyibilikisa isinyithi, njengeziseko. Iintsimbi zentsimbi zihlala zenziwe nge-alloys yensimbi ekwazi ukumelana nobushushu kwaye zinamandla abalaseleyo omatshini kunye nokumelana nobushushu obuphezulu. Nangona i-crucibles yensimbi ayinayo i-thermal conductive njenge-graphite crucibles, inokumelana nokutshatyalaliswa komzimba okuphawulekayo, okwenza ukuba ifanelekele imisebenzi yokunyibilika efuna ukulayishwa rhoqo kunye nokukhulula okanye ukudluliselwa.

5. Ezinye izinto
Ukongeza kwizinto eziqhelekileyo ze-crucible ezikhankanywe ngasentla, kukho nezinye izinto ezikhethekileyo ezisetyenziselwa iinjongo ezithile. Umzekelo, ii-tungsten crucibles zihlala zisetyenziswa kuvavanyo lobushushu obuphezulu ngenxa yendawo yazo yokunyibilika ephezulu kakhulu kunye nokumelana nomhlwa. I-Titanium crucibles isetyenziselwa ukunyibilikisa i-alloys ekhethekileyo ngenxa yokuba ayisebenzi ngeentsimbi ezininzi.

Ukuququmbela
Ukubunjwa kwezinto eziphathekayo kwi-crucible akugcini nje ukugqiba ukuzinza kunye nokuqina kwiindawo eziphakamileyo zokushisa, kodwa kuchaphazela ngokuthe ngqo ukusebenza kunye nokukhuseleka kwenkqubo yokunyibilikisa. Ngoko ke, xa ukhetha i-crucible, iikhemikhali zezinto eziphathekayo, i-thermal conductivity, amandla omatshini kunye nobomi benkonzo kufuneka ziqwalaselwe ngokusekelwe kwiimfuno ezithile zesicelo. I-Crucibles yezixhobo ezahlukeneyo zidlala indima engenakulinganiswa kwishishini le-metallurgical, inika isiqinisekiso esithembekileyo sokusebenza kakuhle kunye nokukhuselekileyo kwesinyithi.