Chidule cha njira zoyeretsera za corundum crucible:

1. Pakalipano, njira yomwe imagwiritsidwa ntchito poyeretsa ma corundum crucibles ndi njira ya kuwira kwa asidi, chifukwa zinthu zambiri zomwe zimagwiritsidwa ntchito zimatha kuchitapo kanthu ndi asidi. Mapiritsi a asidi nthawi zambiri amawaviikidwa mu asidi wa nitric. Ngati malo oti achotsedwewo ndi akulu, njira yonyowayo imatha kuonjezedwa moyenera. Ngati nthawi akadali sangathe kuchotsedwa, akhoza kuchotsedwa ndi akupanga anathandiza kugwedera. Pambuyo kuyeretsa, kuyanika ndi kuziziritsa kungathe kuchitika.

2. Nitrate mu corundum crucible ikhoza kuchotsedwa ndi kuwonongeka kwa kutentha, koma samalani kuti musafulumire mofulumira pamene kutentha kumakwera kuti musaphwanye crucible.

3. Kwa madontho osavuta ndi zotsalira, njira zakuthupi zitha kugwiritsidwa ntchito kuzichotsa. Zomwe zimatha kuchotsedwa mosavuta komanso zosavuta siziyenera kukhala zovuta kwambiri. Kwa madera akuluakulu a madontho omwe sangathe kuchotsedwa pogwiritsa ntchito njira zambiri, ganizirani kusintha crucible. Kupatula apo, kuyimba mozama kumakhudza zotsatira zake zitangowonjezera zonyansa zina.