Borosilicate iav: characterization, ntau lawm thiab daim ntawv thov ntawm

Muab tsoos ntaub ntawv tshwj xeeb cov yam ntxwv tau ntev lawm ntau xyaum. Khoom enhanced thaj chaw ntawm tshuaj tiv thaiv, muaj zog hardness thiab tshav kub tsis kam yog siv nyob rau hauv hwj chim engineering, mechanical engineering, siv cov ntaub ntawv thiab lwm yam liaj teb. Nws tsis nyob twj ywm tsis mloog thiab nqaim lub Scope ntawm tib hluav taws-resistant cov khoom. Yog li, dav siv nyob rau hauv cov tshuaj borosilicate iav, tableware los ntawm uas nws txawv nyob rau hauv yooj yim ntawm daim ntawv thov thiab muaj ntau yam ntawm barrier zog.

Muaj pes tsawg leeg ntawm cov iav

Kev thiab lub cev thaj chaw ntawm cov ntaub ntawv yog txiav txim los ntawm ob yam tseem ceeb - xyuas txheej txheem nyob rau hauv lub tsim txoj kev thiab lub Cheebtsam ntawm cov thawj Cheebtsam. By thiab loj, no iav yog ib tug neeg sawv cev ntawm ib pawg ntawm cov zoo tib yam silicate cov ntaub ntawv, uas yog raws li nyob rau hauv oxides. Qhov no yog ib tug yooj yim daim ntawv teev cov yam xws li carbonaceous sodium, silica xuab zeb thiab calcium oxide, i.e. limestone. Nyob rau hauv cov ntaub ntawv no, borosilicate iav yog tsiag ntawv los ntawm muaj nyob rau hauv muaj pes tsawg leeg thiab lwm lub caij, teev nyob rau hauv ntau uas tsis yog-tus qauv zoo ntawm cov qauv. Tag nrho cov silicate muaj pes tsawg leeg yog ntxiv boron oxide, thiab hais tias muab kuj ntawm lub khob kub hloov. Ntawm cov hoob kawm, nyob rau hauv no niaj hnub iav muaj pes tsawg leeg tsis yog tag, raws li poob lawm ntsiab hloov cov txheej txheem, tsom rau cov kev uas yuav tsum tau rau qhov kawg khoom.

Khob Manufacturing txheej txheem

Cov kev txoj kev ua ib tug borosilicate khoom zoo ib yam li tus raug technology ntawm cov pa tsom iav. Thaum lub sij hawm ua noj ua haus qhov cub ntsiab qhuav aggregates yog siv nrog kub ntau tshaj 1300ºC. Kua loj yog tsim rau ib tug tshwj xeeb hlau panels. Raws li tus txheej txheem ntawm lub float txheej txheem yog nqa borosilicate iav daim ntawv ntawm ib tug muab me me. Lub feature ntawm no txoj kev yog hais tias lub tau nplooj ntawv yog tsis txiav rau hauv tag nrho thiab tsis kho, thiab nyob rau hauv tas daim ntawv yog siv los ntawm lub kawg neeg siv.

Ntawm cov tsom iav tom qab koom ua ke qhov rais, qhov rooj, thiab, nyob rau hauv tej rooj plaub, thiab firewalls. Ib tug loj kev faib ua feem ntawm qhauj koom nyob rau hauv ntau lawm ntawm tej tsom iav, rau qhov siv thiab ua tiav cov tais diav. Qhov no tej zaum yuav hlab, ntim, bowls thiab lwm cov khoom siv nyob rau hauv kev kho mob kev tshawb fawb thiab kev them nyiaj yug cov chaw. Tau nyob rau hauv tshwj xeeb cov khoom txhua yam tej thiab polishing ingots los ntawm uas tom qab koj lem tawm laboratory glassware nyob rau hauv ntau yam ntaub ntawv. Ua tau, lub ntsiab qhov txawv ntawm tus raug cov ntaub ntawv uas cov cov pa silicate analogues yog lub koom haum ntawm lub workflow nyob rau hauv ib tug ntau dua kub.

Main yam ntxwv ntawm cov iav

Khob ntawm no hom yog ib qho kev zoo nyob rau hauv ntau cov khoom thiab kev ua tau zoo yam ntxwv. Qhov no yog feem ntau ib tug dav kub ntau ntawm cov ib puag ncig nyob rau hauv uas lub iav yuav siv tau. Raws li tus qauv, cov khoom yuav mas kub sau mus rau -80ºC thiab 525ºC ntawm lub tshav kub theem. Los ntawm ib tug ua hauj lwm pom nyob rau hauv laboratory tej yam kev mob hauv thawj qhov chaw muaj muaj kuj mus tshuaj nres. Nws yog muab tej txiaj ntsim nrog xws li qualities, kev kho mob raj. Borosilicate iav nrog nws inertia yog txaus hais tias tus neeg siv yuav nti tiv thaiv tus txheem ntawm acids, ntsev, alkalis, thiab organic tebchaw. Nws yog sau tseg thiab txhua yam dag lub zog ntawm cov khoom. Txij li thaum lub ceev coefficient ntawm lub borosilicate bases siab tshaj silicate iav, nws yog zoo dua tiv thaiv los ntawm txoj kev pheej hmoo ntawm lub cev puas tsuaj. Tsis tas li ntawd, muaj zog thermal los tsis txhob ua rau lub iav nto rau hauv me me tawg tsam, thiab tawg vaj huam sib luag nyob rau hauv uas yog tsim nyob rau thiab ruaj ntseg blunt ntug.

Qhov ntau thiab tsawg thiab tso zis hom

Tshwj Xeeb tais diav no feem ntau yog ua rau kom no-piv thiab kev kho mob cov lag luam. Txawm li cas los, zus tau tej cov ntawv ntaub ntawv muab ib co tso tawm qauv. Nyob rau hauv kev, lub thickness ntawm cov iav vaj huam sib luag yuav tsum 6-12 hli. Thaum zoo li no yuam kev yog feem ntau tsawg tshaj li 0.3 hli. Maximum loj, nyob rau hauv uas daim ntawv no yog ua los tshav kub-resistant iav, sawv cev los ntawm lub cev loj 150h300 saib. Tab sis, dua, thov, muaj ntau yam tuam txhab uas muag nyob rau hauv lub xub ntiag ntawm hauj tuition thiab expanding qhov tsis muaj ntau lawm. Raws li rau qhov tsawg kawg nkaus tus nqi, ces tau hais tias yuav lub hom ntawm 10x10 cm, qhov tsawg tshaj plaws chav tsev ntawm qhov kev tso tawm ntawm cov iav.

Liaj teb ntawm daim ntawv thov

Raws li twb tau sau tseg, tus yam ntxwv ntawm cov khoom zoo tshaj plaws suited rau kev siv nyob rau hauv lub chaw soj nstuam, kev kho mob cov khoom khoom, thiab lwm yam Rau xws li cov hom phiaj, manufacturers tsim flasks, ntim, hlab thiab lwm yam khoom. Lub tshuab nqus tsev raj ntawm borosilicate iav, tsuas yog nyob rau hauv tshwj xeeb lub cev tus yam ntxwv, thiab muaj ib tug yam ntxwv feature. Thaum nws yuav superficially zoo li zoo li ib tug raj, nyob rau hauv qhov tseeb ob ntawm lawv, thiab lawv tsim ib tug lub tshuab nqus tsev. Nws pom nws daim ntawv thov thiab daim ntawv iav ntawm no hom. Nws yog feem ntau yog siv raws li partitions nyob rau hauv kho qhov muag technology thiab equipping thaj chaw nrog kev tiv thaiv teeb meem.

Hluav Taws sib ntaus sib tua borosilicate iav

hluav taws kub kuj zoo prized tshwj xeeb tshaj yog siab - ib qhov tseem ceeb cov yam ntxwv ntawm borosilicate khoom. Manufacturers tsim tshwj xeeb panels rau lub glazing thiab lub ntaus ntawv qhov rooj thiab qhov rais paintings uas muaj kev tiv thaiv cov khoom. Yog li, piv txwv li, glazing kab laug sab tsis yog tsuas yog hluav taws kub resistant zog tab sis kuj cov neeg kho tshuab zog. Lub tiav set ntawm standard yas qhov rais tshuab kuj siv ib tug kub-resistant iav, muab thermal tiv thaiv. Npaj hais tawm thiab nplaim taws resistant cov ntaub ntawv rau tus tsim ntawm qab nthab thiab pem teb chaw.

Txwv rau kev siv ntawm cov iav

Dua li ntawm qhov ntau ntawm cov pab kev zog, borosilicate cov khoom muaj ib co kev txwv on siv. Nrog kev xav txog cov sis raug zoo nrog ib tug qhib nplaim taws, cov khoom muaj peev xwm sawv ntawm cov lus hluav taws kub yog tsis ntau tshaj li ib teev. Qhov no nuance yog tsis tso cai rau kev siv ntawm tej iav nyob rau hauv cov chav nrog tshwj xeeb uas yuav tsum tau rau cov hluav taws kev ruaj ntseg. Muaj kev txwv rau lwm yam kev siv. Nyob rau hauv kev, kuaj glassware yuav tsis tau withstand kev sib cuag nrog hydrofluoric thiab hydrofluoric acid. Adversely cuam tshuam rau qhov kev kuaj ntawd hlab thiab flasks nrog caustic alkali, cov nyhuv uas yog siv tam los ntawm high kub. Los ntawm nws tus kheej, cov huab kub yuav tsis ua rau iav, tab sis ntse sib txawv tsis pub cov ntaub ntawv uas hloov cov qauv ntawm lub sij hawm.

xaus

Borosilicate iav khoom yuav tsum tsis txhob ntshai li ib tug tshwj xeeb cov khoom siv rau tsom kev tiv thaiv los ntawm tshuaj nres thiab hluav taws. Peb yuav hais tias nws yog me thiab txawm txhawb tus yam ntxwv uas faib los txhim kho lub usability ntawm tsoos khoom. Txawm li cas los, borosilicate iav, tsis suav kev tiv thaiv zoo, khw muag khoom noj thiab cov khoom xws li transparency thiab lub teeb kis tau tus mob. Yog li ntawd, lub ua ke ntawm cov neeg kho tshuab zog, hluav taws kub kuj thiab translucent ntaub ntawv uas yuav tsum tau ua cim. Yam tsawg kawg xws li ib tug kuaj tais diav, uas, nyob rau hauv tas li ntawd mus rau saum toj yam ntxwv, kuj muaj zoo inertness.