I-China ekhanyayo engenamthungo ye-zirconium crucible yokunyibilikisa isinyithi uMvelisi kunye noMboneleli

i-zirconium ekhanyayo engenamthungo kwicrucible yokunyibilika kwesinyithi

i-zirconium ekhanyayo engenamthungo kwicrucible yokunyibilikisa isinyithi Umfanekiso ofakiweyo

Inkcazelo emfutshane:

Izikhonkwane ezikhanyayo ezingenamthungo ze-zirconium zokunyibilikisa isinyithi ziya kuba lolona khetho lubalaseleyo kwizicelo zobushushu obuphezulu. I-Zirconium yaziwa ngokuba yindawo ephezulu yokunyibilika kunye nokumelana nokugqwala, okwenza ukuba ilungele ukusetyenziswa kwiinkqubo zokunyibilika kwesinyithi.

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Iinkcukacha zeMveliso

Iithegi zeMveliso

Luluphi udidi lweqondo lobushushu leengqayi ze-zirconium?

I-Zirconium crucibles inomgangatho ophezulu wokushisa, okwenza kube lula kwiintlobo ezahlukeneyo zezicelo zoshishino ezibandakanya ukunyibilika kwesinyithi kunye nezinye iinkqubo eziphezulu zokushisa. Uluhlu lweqondo lokushisa lwe-zirconium crucibles lusuka kwiqondo lokushisa ukuya kwi-2400 ° C (4352 ° F). Lo mgangatho wobushushu uphezulu wenza ukuba i-zirconium crucibles ilungele ukunyibilikisa intsimbi ephezulu yokunyibilika njenge-titanium, nickel kunye nezinye iintsimbi ezilahlayo.

Ukongezelela, ukumelana nokugqwala kwe-zirconium kunye nokukwazi ukumelana nokushisa okuphezulu kwenza kube yinto ebalulekileyo kwizicelo kwiimeko ezinzima.

Yintoni umahluko phakathi kwe-alumina kunye ne-zirconia crucible?

I-alumina kunye ne-zirconia crucibles zombini zisetyenziswa rhoqo kwizicelo zokushisa okuphezulu, kodwa zinomohluko omkhulu:

1. Ukwakhiwa kwezinto:
- I-aluminium crucibles yenziwe nge-aluminium oxide (Al2O3), i-ceramic material eyaziwa ngokuba yi-conductivity ephezulu ye-thermal kunye nokuchasana kweekhemikhali.
- I-Zirconia crucibles, ngakolunye uhlangothi, yenziwe nge-zirconium dioxide (ZrO2), eyaziwa ngokuba yi-zirconia. I-Zirconia inamandla amakhulu, ukuqina kunye nokuchasana nokutshatyalaliswa kwe-thermal.

2. Indawo yokunyibilika:
- I-aluminiyam oxide inendawo ephakamileyo yokunyibilika, ngokuqhelekileyo malunga ne-2050 ° C (3722 ° F), iyenze ilungele usetyenziso oluhlukeneyo lobushushu obuphezulu.
- I-Zirconia ineqondo eliphezulu lokunyibilika, ngokuqhelekileyo malunga ne-2700 ° C (4892 ° F), iyenza ilungele izicelo ezifuna ukushisa okukhulu.

3. I-Thermal conductivity:
- I-aluminium oxide ine-conductivity ephezulu ye-thermal, enenzuzo kwizicelo ezithile apho ukuhanjiswa kobushushu okusebenzayo kubalulekile.
- I-Zirconia ine-conductivity ephantsi ye-thermal xa kuthelekiswa ne-alumina, enenzuzo kwizicelo ezifuna ukufakwa kwe-thermal.

4. Ukumelana nemichiza:
- I-Aluminiyam oxide inokumelana neekhemikhali ezilungileyo, iyenza ilungele ukusetyenziswa kunye neentsimbi ezininzi ezityhidiweyo kunye neendawo ezinobungozi bemichiza.
-I-Zirconia ikwabonisa ukuxhathisa kweekhemikhali okugqwesileyo, ngakumbi kwiindawo ezineasidi kunye ne-alkaline, iyenza ilungele ukufakwa kweekhemikhali ezifunwayo.

Isishwankathelo, ngelixa zombini i-alumina kunye ne-zirconia crucibles zifanelekile kwizicelo eziphezulu zokushisa, ukhetho phakathi kwezi zibini luxhomekeke kwiimfuno ezithile ezifana noluhlu lweqondo lokushisa, ukuqhutyelwa kwe-thermal, kunye nokuchasana kweekhemikhali.