Ṣiṣiri anfani ti gilasi borosilicate

Borosilicate gilasijẹ iru awọn ohun elo gilasi pẹlu akoonu boron ti o ga julọ, ti o jẹ aṣoju nipasẹ awọn oriṣiriṣi awọn ọja lati oriṣiriṣi awọn aṣelọpọ.Lara wọn, Schott Glass's Borofloat33® jẹ gilasi silica borate giga ti a mọ daradara, pẹlu isunmọ 80% silicon dioxide ati 13% boron oxide.Yato si Schott's Borofloat33®, awọn ohun elo gilasi miiran ti o ni boron wa ni ọja, gẹgẹbi Corning's Pyrex (7740), Eagle jara, Duran®, AF32, ati bẹbẹ lọ.

Da lori awọn oriṣiriṣi oxides irin,gilasi yanrin borate gigale ti wa ni pin si meji isori: alkali-ti o ni awọn ga-borate yanrin (fun apẹẹrẹ, Pyrex, Borofloat33®, Supremax®, Duran®) ati alkali-free ga-borate silica (pẹlu Eagle jara, AF32).Gẹgẹbi awọn iṣiro oriṣiriṣi ti imugboroja igbona, alkali-ti o ni gilasi silica borate giga le jẹ tito lẹtọ siwaju si awọn oriṣi mẹta: 2.6, 3.3, ati 4.0.Lara wọn, gilasi pẹlu olùsọdipúpọ imugboroja igbona ti 2.6 ni olusọdipúpọ kekere ati resistance otutu ti o dara julọ, ti o jẹ ki o dara bi aropo apa kan fungilasi borosilicate.Ni apa keji, gilasi pẹlu olùsọdipúpọ imugboroja igbona ti 4.0 jẹ lilo ni akọkọ fun awọn ohun elo sooro ina ati pe o ni awọn ohun-ini sooro ina to dara lẹhin toughing.Iru ti a lo julọ julọ jẹ eyiti o ni iye iwọn imugboroja gbona ti 3.3.

Paramita 3.3 Borosilicate gilasi Gilasi onisuga orombo
Silikoni akoonu 80% tabi diẹ ẹ sii 70%
Ojuami igara 520 ℃ 280 ℃
Annealing Point 560 ℃ 500 ℃
Ojuami Rirọ 820 ℃ 580 ℃
Atọka Refractive 1.47 1.5
Itumọ (2mm) 92% 90%
Modulu rirọ 76 KNmm^-2 72 KNmm^-2
Wahala-Opitika olùsọdipúpọ 2,99*10^-7 cm^2/kgf 2,44 * 10 ^ -7 cm^2 / kg
Iwọn otutu ti nṣiṣẹ (104dpas) 1220 ℃ 680 ℃
Imugboroosi Laini (20-300 ℃) (3.3-3.5) ×10^-6 K^-1 (7.69.0) ×10^-6 K^-1
Ìwúwo (20 ℃) 2,23 g • cm^-3 2,51 g • cm ^ -3
Gbona Conductivity 1.256 W/(m•K) 0.963 W/(m•K)
Resistance Omi (ISO 719) Ipele 1 Ipele 2
Resistance Acid (ISO 195) Ipele 1 Ipele 2
Idaduro Alkali (ISO 695) Ipele 2 Ipele 2

Ni akojọpọ, ni akawe si gilasi orombo soda,gilasi boroslicateni iduroṣinṣin igbona to dara julọ, iduroṣinṣin kemikali, gbigbe ina, ati awọn ohun-ini itanna.Bi abajade, o ni awọn anfani bii resistance si ogbara kemikali, mọnamọna gbona, iṣẹ ṣiṣe ẹrọ ti o dara julọ, awọn iwọn otutu iṣẹ ṣiṣe giga, ati lile giga.Nitorina, o tun mọ biooru-sooro gilasi, ooru-sooro mọnamọna gilasi, gilaasi sooro otutu otutu, ati pe a lo nigbagbogbo bi gilasi kan ti ina-sooro.O ti wa ni lilo pupọ ni awọn ile-iṣẹ bii agbara oorun, kemikali, apoti elegbogi, optoelectronics, ati awọn ọna ohun ọṣọ.