Borosilicate iav txoj kev technology

Float iav txoj kev siv tshuab yog yaj, qhia meej, thiab homogenize lub iav molten nyob rau hauv lub melting rauv, thiab ntab rau saum npoo ntawm lub molten tin nyob rau hauv lub tin da dej ntawm kub kub, siv lub nto nro ntawm lub molten iav thiab nto ntawm lub molten iav thiab molten tin. Kev sib xyaw ua ke ntawm kev nro thiab lub ntiajteb txawj nqus ntawm molten iav ua tiav cov txheej txheem ntawm flattening, thinning, polishing, txias, thiab solidification ntawm molten iav, ua rau nws zoo-zoo ca iav superior rau polished iav. Lub ntsiab kev txiav txim siab rau qhov tsim ntawm ntab iav yog viscosity, nto nro thiab lub ntiajteb txawj nqus ntawm iav. Ntawm peb yam no, cov viscosity ntawm cov iav kua feem ntau plays lub luag hauj lwm ntawm iav shaping, qhov nro ntawm cov iav kua feem ntau plays lub luag hauj lwm ntawm iav polishing, thiab lub ntiajteb txawj nqus ntawm iav kua mas plays lub luag hauj lwm ntawm iav flattening. Peb qhov no cuam tshuam rau flattening thiab polishing ntawm iav kua. Ob leeg muaj qee yam cuam tshuam, thiab lawv tuaj yeem ua ke nrog ib leeg los tsim cov iav ntab.

Tus nqi ntawm tin infiltration, lub xeev valence thiab qhov tob ntawm tin infiltration nyob rau hauv qis nto ntawm ntab iav muaj kev cuam tshuam ntau dua rau qhov zoo ntawm ntab iav thiab kev sib sib zog nqus ntawm cov iav. Tus nqi ntawm cov tin nkag mus rau ntawm qhov chaw qis ntawm ntab iav feem ntau qhia los ntawm tus nqi CPM. Nws yog tus yam ntxwv spectral kab suav ntawm tin ib feeb ib chav tsev ntawm qhov chaw qis ntawm lub iav ntab, hu ua tus naj npawb ntawm cov tin suav ib feeb. Feem ntau hais lus, qhov qis dua qhov nkhaus, qhov flatter nws sawv cev. Lub tin nkag mus rau tag nrho lub rooj tsavxwm yog tsawg thiab sib xws. Tseem muaj qhov sib txawv loj hauv CPM tus nqi ntawm iav ntawm cov teb chaws thiab txawv teb chaws thiab kev sib koom ua lag luam. Tus nqi ntawm tin nyob rau hauv lub khob yog loj heev. Kev sib sib zog nqus ntawm iav

Raws li cov ntaub ntawv, lub vapor siab ntawm tin nce sharply nrog rau qhov kub ntawm cov kua tin. Raws li pom nyob rau hauv Table 6, lub vapor siab ntawm tin yog 1.35 × 10 Pa ntawm 730 ℃, thiab lub vapor siab ntawm tin yog 133.32 Pa ntawm 1 440 ℃. Nws tuaj yeem pom tias qhov kub thiab txias - 4 nce 1 zaug, lub vapor siab nce 7.04 × 10 zaug. Yog li ntawd, kev sib piv siab borosilicate iav thiab dej qab zib-lime silica iav, yog tias qhov kub ntawm qhov kawg ntawm lub tin da dej yog nce li ntawm 300 ° C, lub vapor siab ntawm tin yog nce 142 zaug. Nyob rau hauv txoj kev no, thaum cov txheej txheem ntab ua kom siab borosilicate iav, cov iav kua zoo li nyob rau hauv lub tin vapor da dej. Nyob rau tib lub sijhawm, vim tias qhov kub ntawm qhov ua kom siab borosilicate iav yog nce los ntawm ob peb puas degrees, cov kev ua ntawm tin ions yog heev txhim khu kev qha, thiab tin ions nkag mus rau hauv lub iav electrode. Lub peev xwm saum npoo yog txhim kho zoo heev, thiab muaj peev xwm ua kom cov tin infiltration ntau ntxiv. Kev cuam tshuam ntawm tin infiltration ntawm kev hloov ntawm cov iav saum npoo yog ntau dua. Qhov no yog ib qho ntawm cov teeb meem uas yuav tsum tau daws los ntawm cov txheej txheem ntab iav.