Nyob rau hauv lub neej niaj hnub, borosilicate iav khob feem ntau yog siv rau brewing tshuaj yej thiab kas fes vim lawv siab transparency thiab zoo tshuaj stability. Lawv qhov siab tshaj plaws tiv taus kub yog qhov kev txhawj xeeb tseem ceeb rau cov neeg siv. Qhov siab tshaj plaws kub tam sim no ib txwm borosilicate iav khob tuaj yeem tiv taus yog kwv yees li 150 degree, thaum lub sijhawm ntev -kev nyab xeeb siv kub yog qis dua 120℃. Cov yam ntxwv no tshwm sim los ntawm nws cov khoom sib xyaw ua ke thiab kev tsim khoom.
Qhov kub tsis kam ntawm borosilicate iav yog qhov tseem ceeb txiav txim siab los ntawm nws cov tshuaj muaj pes tsawg leeg. Nws siv silicon dioxide raws li cov khoom siv tseem ceeb, nrog 10% -15% boron anhydride ntxiv ua flux. Piv nrog rau cov dej qab zib zoo tib yam- txiv qaub iav, qhov sib ntxiv ntawm boron restructures lub iav cov qauv molecular, tsim kom muaj kev ruaj ntseg network architecture. Cov qauv no tsis tsuas yog txo cov iav coefficient ntawm thermal expansion, txhim kho nws cov thermal stability, tab sis kuj txhim kho nws qhov kub thiab txias, tso cai rau nws tswj nws cov duab ruaj khov nyob rau hauv ntau qhov kub thiab txias thiab tiv thaiv kev tawg vim qhov kub thiab txias hloov mus ntev los yog ntev heev rau qhov kub thiab txias.
Nws yog ib qho tseem ceeb kom paub meej tias qhov 150℃instantaneous siab tshaj plaws kub tsis yog qhov pib kiag; qhov tseeb kub tsis kam yog cuam tshuam los ntawm ntau yam. Ua ntej, cov txheej txheem tsim khoom tseem ceeb. High-zoo borosilicate iav tau dhau los siab-kub annealing, tso siab rau sab hauv thiab coj nws qhov kub thiab txias los ze zog rau tus nqi theoretical. Hauv qhov sib piv, cov khoom lag luam tsis zoo yuav muaj cov kab nrib pleb zais, ua rau lawv yooj yim tawg ntawm qhov kub thiab txias. Qhov thib ob, qhov ntsuas kub hloov pauv yog qhov tseem ceeb. Thaum lub iav borosilicate muaj qhov zoo thermal shock tsis kam, tam sim ntawd raug kub siab tshaj 150℃(xws li nchuav rau hauv cov dej kub npau npau) tseem tuaj yeem ua rau nws tawg vim qhov sib txawv ntawm qhov kub thiab txias, tshwj xeeb tshaj yog rau cov tuab tuab - cov qauv phab ntsa.
Hauv kev siv txhua hnub, cov txheej txheem tsim nyog yog qhov tseem ceeb los txo cov kev pheej hmoo. Nws raug nquahu kom preheat lub khob nrog dej sov me me ua ntej ntxiv dej npau npau kom tsis txhob hloov pauv kub. Tsis txhob tso lub khob khoob ncaj qha rau ntawm qhov qhib nplaim taws lossis siab - cov khoom siv cua sov. Txawm tias cov cua sov-cov khob uas tsis muaj zog tuaj yeem raug kev txom nyem los ntawm cov cua sov hauv cheeb tsam thiab kev puas tsuaj rau lub khob iav yog tias cia qhuav rau lub sijhawm ntev. Tsis tas li ntawd, rau borosilicate iav khob nrog tuav, sealing rings, los yog lwm yam accessories, cov ntaub ntawv ntawm cov khoom siv no yuav tsis muaj cua sov-resistant. Tag nrho cov kev siv kub yuav tsum raug txiav txim raws li qhov kam rau ntawm cov khoom siv no, feem ntau tsis tshaj 100 degree.
Muab piv rau cov iav zoo tib yam, iav borosilicate siab muaj qhov zoo dua qub hauv siab -kub tsis kam. Ordinary soda-liab iav tsuas tuaj yeem tiv taus qhov kub txog li 80℃thiab muaj qhov tsis zoo thermal poob siab, thaum lub iav borosilicate siab tuaj yeem tiv taus qhov kub thiab txias ntawm 150℃thiab muaj qhov zoo thermal poob siab, ua rau nws haum rau feem ntau cov dej kub txhua hnub. Nyob rau tib lub sijhawm, nws cov tshuaj lom neeg ruaj khov zoo heev txhais tau tias nws yuav tsis tso cov khoom tsis zoo ntawm qhov kub thiab txias, ua kom muaj kev nyab xeeb ntau dua, uas tseem yog ib qho tseem ceeb rau kev siv dav hauv kev lag luam ntim khoom noj.