Qhov sib txawv tseem ceeb ntawm cov iav dej qab zib thiab borosilicate iav yog tias cov iav dej qab zib tsis muaj cov khoom siv boron-derived thaum lub iav borosilicate muaj boron trioxide ua lub ntsiab iav tsim. Vim tias lawv cov tshuaj muaj pes tsawg leeg, borosilicate iav yog resistant rau thermal shock dua li cov dej qab zib lime iav, uas muaj cov thermal tsis kam.
Lub khob yog amorphous (tsis yog crystalline) khoom uas peb siv hauv peb lub neej niaj hnub. Nws yog cov khoom uas pob tshab thiab muaj feem ntau silica. Qhov tseeb, qhov qub tshaj plaws yog silicate iav. Nws muaj silicon dioxide ua cov khoom tseem ceeb. Cov neeg tam sim no tau pom ntau hom iav uas tau txhim kho cov khoom siv rau cov kev xav tau. Soda txiv qaub iav thiab borosilicate iav yog ob daim ntawv.
Soda Lime Glass yog dab tsi?
Soda txiv qaub iav yog hom iav ntau tshaj plaws uas feem ntau muaj silicon dioxide. Daim ntawv ntawm iav no kuj pheej yig thiab chemically ruaj khov. Tsis tas li ntawd, nws muaj qhov hnyav hnyav nrog kev ua haujlwm siab heev. Qhov tseem ceeb tshaj, peb tuaj yeem rov ua dua thiab rov ua dua lub khob no ob peb zaug ntawm iav rov ua dua tshiab. Yog li ntawd, peb tuaj yeem siv nws ntau zaus.
Cov khoom siv raw uas peb tuaj yeem siv los ua lub khob no yog sodium carbonate, txiv qaub, dolomite, silicon dioxide, aluminium oxide, thiab lwm yam. Hauv cov txheej txheem tsim khoom, peb tuaj yeem siv cov khoom siv raw hauv lub khob rauv. Lub qhov cub yuav tsum nyob ntawm qhov kub thiab txias hauv zos mus txog 1675 ° C. Hom khoom raw peb siv muaj kev cuam tshuam zoo rau cov xim ntawm cov iav. Piv txwv li, peb tuaj yeem tau txais lub raj mis ntsuab thiab xim av siv cov khoom siv raw, uas muaj cov hlau oxide.
Daim duab 01: Ib Tug Dej Qab Zib Iav Rag
Thaum xav txog cov tshuaj lom neeg thiab lub cev ntawm cov dej qab zib lime iav, nws tuaj yeem ua rau nws cov viscosity nce ntxiv thaum qhov kub thiab txias. Ntxiv mus, lub iav yog yooj yim formable kom tau cov duab xav tau thaum lub viscosity siab heev. Muaj ob hom xws li thawv iav thiab iav tiaj tus raws li daim ntawv thov.
Borosilicate iav yog dab tsi?
Borosilicate iav yog ib hom iav uas muaj silicon dioxide thiab boron trioxide. Ob cov tshuaj sib xyaw ua ke no ua raws li cov khoom siv iav loj. Cov yam ntxwv feature ntawm daim iav no yog qhov tsawg coefficient ntawm thermal expansion. Qhov no ua rau cov iav resistant rau thermal shock. Yog li ntawd, peb tuaj yeem siv lub khob no los tsim cov fwj tshuaj reagent thiab cov khoom ci ci.
Daim duab 02: Borosilicate Beakers
Cov khoom siv raw rau kev tsim cov iav no yog boric oxide, silica xuab zeb, dej qab zib tshauv thiab alumina. Peb yuav tsum muab lawv los ntawm melting. Muaj ntau hom iav no nyob ntawm cov khoom siv raw uas peb siv hauv nws cov khoom; Tsis-alkaline-lub ntiaj teb borosilicate iav, alkaline-lub ntiaj teb uas muaj borosilicate iav thiab siab borosilicate iav.
Qhov txawv ntawm Soda Lime Glass thiab Borosilicate iav yog dab tsi?
Soda txiv qaub iav yog hom iav ntau tshaj plaws uas feem ntau muaj silicon dioxide thaum lub iav borosilicate yog ib hom iav uas muaj silicon dioxide thiab boron trioxide. Lawv txawv ntawm ib leeg raws li cov tshuaj muaj pes tsawg leeg. Yog li, cov iav dej qab zib muaj cov silica feem ntau, thiab tsis muaj boron-muaj cov sib txuas thaum lub iav borosilicate feem ntau muaj silica thiab boron trioxide. Qhov no yog qhov sib txawv tseem ceeb ntawm cov iav dej qab zib thiab borosilicate iav.
Ntxiv mus, cov khoom siv raw uas peb siv los ua cov iav dej qab zib yog sodium carbonate, txiv qaub, dolomite, silicon dioxide, aluminium oxide, thiab lwm yam thaum cov khoom siv raw rau kev tsim cov iav borosilicate yog boric oxide, silica xuab zeb., dej qab zib tshauv thiab alumina. Lwm qhov sib txawv tseem ceeb ntawm cov dej qab zib lime iav thiab borosilicate iav yog lawv cov thermal kuj. Lub thermal kuj ntawm dej qab zib txiv qaub iav yog tsawg piv rau borosilicate iav, uas muaj ib tug tsawg coefficient ntawm thermal expansion; Yog li ntawd, nws yog resistant rau thermal shock. Yog li, qhov thermal kuj txiav txim siab cov ntawv thov ntawm txhua hom iav.
Cov duab hauv qab no qhia txog kev sib piv ntau ntxiv ntawm qhov sib txawv ntawm cov iav dej qab zib thiab borosilicate iav.
Summary – Soda Lime Glass vs Borosilicate Glass
Lub iav yog qhov muaj txiaj ntsig zoo rau peb hauv peb tsev neeg nrog rau kev sim thiab kev lag luam. Soda txiv qaub thiab borosilicate iav yog ob hom iav. Qhov sib txawv tseem ceeb ntawm cov iav dej qab zib thiab borosilicate iav yog tias cov iav dej qab zib tsis muaj boron-derived constituents whereas lub borosilicate iav muaj boron trioxide raws li lub ntsiab iav-forming constituent.
