Tau ntsib nrog ntau yam iav hauv kev ua lag luam, xws li iav zoo tib yam, iav ultra dawb, iav laminated, thiab iav insulated, Kuv ntseeg tias iav feem ntau pom hauv lub neej niaj hnub yog tej zaum iav zoo tib yam.
Ordinary iav muaj lub teeb xa hluav taws xob tsawg, feem ntau nyob ib puag ncig 85%, thaum lub iav ultra dawb muaj lub teeb pom kev zoo heev, ncav cuag tshaj 92%. Yog li ntawd, ultra-dawb iav yog ntau tshaj li ob zaug raws li kim iav zoo tib yam raws li tus nqi rau tib cheeb tsam.
Lub ntsiab ntawm cov iav zoo tib yam yog silica (SiO2, uas yog lub ntsiab ntawm quartz thiab xuab zeb). Thiab qhov melting point ntawm silica ntshiab yog 2000 degrees Celsius, yog li thaum ua iav, sodium carbonate (Na2CO3, los yog dej qab zib) thiab poov tshuaj carbonate (Potash, K2CO3, poov tshuaj alkali) feem ntau yog ntxiv, yog li lub melting point ntawm silica yuav poob. mus txog 1000 degrees Celsius.
Hom iav no tsis muaj qhov chaw melting, tsuas yog qhov muag muag. Feem ntau, qhov softening point yog nyob ib ncig ntawm 600 degrees, thiab thaum kub nce, nws fluidity yuav zoo dua. Qhov taw tes softening yog qhov kub ntawm cov khoom iav pib muag, uas feem ntau pom hauv lub neej txhua hnub.
Melting iav yuav tsum tau kub ntawm 1500 degrees vim hais tias ib co raw cov ntaub ntawv yuav tsum tau xws li ib tug kub kub kom yaj, thiab tshem tawm npuas los ntawm lub tshiab tsim iav kua kuj yuav tsum tau kub.
Ordinary iav, raws li cov iav yooj yim hauv cov iav kab hlau rhuav phab ntsa, kuj tau siv dav hauv lub neej txhua hnub
