Kwindawo ye-metallurgy, chemistry, kunye nesayensi yezinto eziphathekayo, ukhetho olufanelekileyoi-crucibleimathiriyeli ibalulekile ekumiseleni impumelelo yeenkqubo ezahlukeneyo, ukusukela kubushushu obuphezulu bentsimbi edityanisiweyo ukuya ekudibaneni kweeseramikhi eziphambili kunye neeglasi. Kukho izinto ezininzi ezinqamlekileyo ezikhoyo, nganye ineseti yayo ekhethekileyo yeempawu kunye neenzuzo. Makhe siphonononge ezona mathiriyeli zigqwesileyo zeecrucibles ngokweenkcukacha ezithe kratya:
IiCrucible zeQuartz
Izikhonkwane ze-quartz, ezihlala zenziwe kwi-silica edibeneyo ecocekileyo, zidume ngeempawu zazo ezikhethekileyo. Bagqwesa ukuchasana nokushisa okuphezulu, ukumelana nemiphumo ephazamisayo ye-acids kunye neziseko, kunye nokugcina uzinzo phantsi kweemeko ezishushu kakhulu. Ezi crucibles zifumana i-niche yazo ekunyibilikiseni isinyithi esisulungekileyo esinje ngesilicon, ialuminiyam, kunye nentsimbi. Ngapha koko, ukuhanjiswa kwabo okuphezulu kwe-thermal kuphucula ukusebenza kakuhle kokunyibilika. Nangona kunjalo, umgangatho we-premium we-quartz ufika kwindawo yexabiso eliphezulu.
IiCrucible zeCeramic
Izikhemikhali ze-Ceramic ziquka iindidi ezimbini eziphambili: i-aluminium oxide ceramics kunye ne-zirconium oxide ceramics. Ezi crucibles zinika ukumelana nobushushu obugqwesileyo kunye nokuzinza kweekhemikhali, zibenza ukhetho oluguquguqukayo lokunyibilikisa uluhlu olubanzi lwezixhobo, kubandakanya isinyithi, iglasi, iiseramikhi, nokunye. Nangona kunjalo, ukuxhathisa kwabo ubushushu kuncinci kunoko kwe-quartz crucibles, ezenza ukuba zifaneleke ngakumbi kwizinto ezinamaqondo anyibilikayo angaphantsi kwe-1700 ° C.
IiCrucibles zeGraphite
I-graphite crucibles yi-workhorses yobushushu obuphezulu, i-high-pressure environments, ihlala isebenza njengezixhobo ezibalulekileyo kuphando lwe-metallurgical kunye neekhemikhali. Ezi crucibles zifumaneka kwiifom ezimbini eziphambili: i-graphite yendalo kunye ne-synthetic graphite. Iicrucibles ze-graphite zendalo ziqhayisa uzinzo oluphezulu lwe-thermal kunye nokumelana nokubola, ezifanelekileyo kwizicelo ezahlukeneyo zobushushu obuphezulu. Ngakolunye uhlangothi, i-synthetic graphite crucibles inexabiso elisebenzayo kodwa inokunciphisa kancinci ukuzinza kunye nokumelana nokubola.
Iintsimbi zentsimbi
Iintsimbi zentsimbi zenziwe ngezinto ezifana nentsimbi engatyiwa, imolybdenum, iplatinam, nokunye. Zezona zikhethwayo xa ujongana nemathiriyeli eneendawo zokunyibilika eziphezulu kakhulu okanye xa ujongene neemeko ezineasidi kakhulu okanye ezinealkaline. I-Metal crucibles ibonisa ukuchasana okunamandla kwi-corrosion kunye nokugcina uzinzo olumangalisayo lwe-thermal. Nangona kunjalo, ukusetyenziswa kwabo kuhambelana neendleko eziphezulu xa kuthelekiswa nezinye izinto ezinqamlekileyo.
Summary
TUkukhethwa kwezinto ezinqamlekileyo kufuneka kuqhutywe yinto ethile eyenziwayo kunye neemeko zokunyibilika ezikhoyo. Uhlobo ngalunye lwe-crucible lubonelela ngeenzuzo zalo ezizodwa kunye nokunciphisa, kwaye ukukhetha okulungileyo kubaluleke kakhulu ekufezekiseni iziphumo ezisebenzayo kunye neziphezulu kwiinkalo ze-metallurgy, chemistry, kunye nesayensi yezinto eziphathekayo.
Ixesha lokuposa: Oct-24-2023