04. Fused iav

Fused iav yog iav uas tau raug rho tawm haujlwm (tshav kub-ua) nyob rau hauv klin ntawm ntau qhov chaw kub siab txij 593 ° C (1,099 ° F) mus rau 816 ° C (1,501 ° F). Nws muaj peb qho tseem ceeb rau kev thov kub thiab qhov tshwm sim uas tshwm sim rau lub khob.  

Raug tua nyob rau hauv qis dua ntawm qhov kub li 593-677 ° C (1,099-1,251 ° F) yog hu ua slumping. Raug tshem tawm hauv nruab nrab ntawm qhov kub li 677-732 ° C (1,251-1,350 ° F) yog xav txog "tack fusing". Txhawm rau iav qhov siab tshaj ntawm qhov no muaj 732-816 ° C (1,350-1501 ° F) feem ntau piav raws li "tag nrho fuse".

Tag nrho cov tswv yim no tuaj yeem siv mus rau ib qho iav ua haujlwm nyob hauv kev cais hluav taws xob ntxiv rau qhov tob, nyem thiab duab.