Borosilicate gilashinwani nau'in kayan gilashi ne tare da babban abun ciki na boron, wanda samfurori daban-daban ke wakilta daga masana'antun daban-daban.Daga cikin su, Schott Glass's Borofloat33® sanannen babban gilashin silica na borate ne, tare da kusan 80% silicon dioxide da 13% boron oxide.Bayan Schott's Borofloat33®, akwai sauran kayan gilashin boron a kasuwa, kamar Corning's Pyrex (7740), jerin Eagle, Duran®, AF32, da sauransu.
Dangane da nau'ikan oxides na ƙarfe daban-daban,high-borate silica gilashinza a iya raba kashi biyu: alkali-dauke da high-borate silica (misali, Pyrex, Borofloat33®, Supremax®, Duran®) da alkali-free high-borate silica (ciki har da Eagle jerin, AF32).Dangane da ƙididdiga daban-daban na haɓakar thermal, alkali-mai ɗauke da babban gilashin silica na silica za a iya ƙara zuwa kashi uku: 2.6, 3.3, da 4.0.Daga cikin su, gilashin tare da madaidaicin haɓakar haɓakar thermal na 2.6 yana da ƙarancin ƙima da mafi kyawun juriya na zafin jiki, yana sa ya dace a matsayin ɗan maye gurbin.gilashin borosilicate.A daya hannun, gilashin tare da thermal fadada coefficient na 4.0 aka yafi amfani ga wuta jure aikace-aikace da kuma yana da kyau wuta jure Properties bayan taurin.Nau'in da aka fi amfani da shi shine wanda ke da ma'aunin faɗaɗawar thermal na 3.3.
Siga | 3.3 Gilashin Borosilicate | Gilashin Soda Lime |
Abubuwan Silicon | 80% ko fiye | 70% |
Matsayin Matsala | 520 ℃ | 280 ℃ |
Annealing Point | 560 ℃ | 500 ℃ |
Wurin Tausasawa | 820 ℃ | 580 ℃ |
Fihirisar Refractive | 1.47 | 1.5 |
Bayyanawa (2mm) | 92% | 90% |
Modul na roba | 76 KNmm^-2 | 72 KNmm^-2 |
Danniya-Optical Coefficient | 2.99*10^-7 cm^2/kgf | 2.44*10^-7 cm^2/kgf |
Zazzabi Mai sarrafawa (104dpas) | 1220 ℃ | 680 ℃ |
Ƙididdigar Faɗaɗɗen Layi (20-300 ℃) | (3.3-3.5) ×10^-6 K^-1 | (7.6~9.0) ×10^-6 K^-1 |
Yawaita (20 ℃) | 2.23 g •cm^-3 | 2.51 g •cm^-3 |
Thermal Conductivity | 1.256 W/(m•K) | 0.963 W/(m•K) |
Resistance Ruwa (ISO 719) | Darasi na 1 | Darasi na 2 |
Resistance Acid (ISO 195) | Darasi na 1 | Darasi na 2 |
Juriya na Alkali (ISO 695) | Darasi na 2 | Darasi na 2 |
A taƙaice, idan aka kwatanta da gilashin soda lemun tsami,gilashin boroslicateyana da mafi kyawun kwanciyar hankali na thermal, daidaiton sinadarai, watsa haske, da kaddarorin lantarki.Sakamakon haka, tana da fa'idodi kamar juriya ga zaizawar sinadarai, girgizar zafi, kyakkyawan aikin injina, yanayin zafi mai ƙarfi, da taurin gaske.Saboda haka, an kuma san shi dagilashin juriya zafi, Gilashin girgiza mai jurewa zafi, gilashin juriya mai zafi, kuma ana amfani da ita azaman gilashin da ke jure wuta na musamman.Ana amfani da shi sosai a masana'antu kamar makamashin hasken rana, sinadarai, marufi na magunguna, optoelectronics, da fasahar ado.