Ileli yekhebula yenye yezona zisetyenziswa kakhulu kwimizi-mveliso nakwizakhiwo zasekuhlaleni.Ineenzuzo zobunzima obulula, umthwalo omkhulu, ukubonakala okuhle, isakhiwo esilula kunye nokufakwa okufanelekileyo.Ifanelekile zombini ukufakwa kwentambo yombane eqinile ye-diameter encinci kunye nokubekwa kwentambo yombane ebuthathaka.Kwiprojekthi, kukho iindlela ezimbini zokubeka i-tray kunye okanye ngaphandle kwekhava.I-tray ngaphandle kwesigqubuthelo inomsebenzi omhle wokutshatyalaliswa kobushushu, kodwa kulula ukuwa uthuli, kwaye kunzima ukuyicoca.Ngokuqhelekileyo isetyenziselwa kwiindawo ezingenalo uthuli okanye iindawo ezincinci zothuli, ngaphandle koko i-tray enekhava kufuneka isetyenziswe.Imigaqo yokukhetha itreyi yile ilandelayo:
A: I-tray ingasetyenziselwa ukudibanisa iintambo zombane eziqhelekileyo kunye neentambo zonxibelelwano, kodwa itreyi engenazigqubuthelo azivumelekanga ukuba ibekwe kwisilingi okanye isilingi ejingayo;B;I-750°C, i-1.5 h intambo ekhanyelayo inokubotshwa ngetreyi egqunyiweyo, (iqokobhe letreyi kufuneka lenziwe ngezinto zokuthintela umlilo.)