Npog iav cov ntaub ntawv: Dab tsi mus rau hauv cov zaub ntawm koj lub xov tooj
Mar 03, 2026
Saib txhua lub xov tooj, ntsiav tshuaj, lossis lub vijtsam niaj hnub no. Cov txheej saum toj kawg nkaus uas koj kov yog hu ua npog iav. Hauv kev lag luam, tib neeg tsuas yog hu nws CG lossis npog lens. Nws zaum nyob rau sab saum toj ntawm cov zaub module. Nws txoj hauj lwm yog ncaj nraim. Tiv thaiv qhov screen hauv qab. Thiab nrog qee tus cwj mem luam tawm nyob ib ncig ntawm cov npoo, ua rau lub cuab yeej zoo.
Npog iav tsis yog ib txwm iav. Qee zaum nws yog yas. PC, PMMA, los yog sib tov ntawm ob qho tib si. Tab sis nyob rau hauv feem ntau cov xov tooj thiab cov lus me me, iav yog tus qauv. Uas yog li cas lub lag luam evolved.
Yog li ntawd yog dab tsi daim iav ua los ntawm? Cia peb rhuav nws.
Raw Material Mix
iav pib raws li kev sib xyaw ntawm cov khoom siv raw. Hauv cov iav npog, cov khoom xyaw tseem ceeb suav nrog silicon dioxide, aluminium oxide, calcium oxide, sodium oxide, lithium oxide, potassium oxide, thiab magnesium oxide. Thawj plaub ua rau feem ntau ntawm qhov hnyav. Lawv tsim lub hauv paus.
Ua ke, lawv tsim qhov hu ua silicate iav. Silicon dioxide tsim cov qauv. Lwm cov oxides pab txo qhov melting point thiab tsim cov khoom kawg ntawm cov iav.
Txhua cov khoom xyaw hauv qhov sib tov tseem ceeb. Hloov daim ntawv qhia thiab koj hloov li cas lub iav ua haujlwm. Mechanically, thermally, optically. Nws kuj hloov kho nyuaj npaum li cas rau kev tsim khoom thiab nws raug nqi dab tsi. Glassmakers siv ntau xyoo los kho qhov nyiaj tshuav no.
Cia peb mus dhau ntawm cov khoom xyaw tseem ceeb ib los ntawm ib qho.
Silicon Dioxide
Qhov no yog lub pob txha. Nws tsim lub network uas tuav lub iav ua ke. Xav txog nws li lub thav duab ntawm ib lub tsev. Nws txuas mus rau hauv chav hu ua silicon tetrahedra. Cov kev sib txuas no muab iav nws lub zog yooj yim thiab ruaj khov.
Ntau silicon dioxide txhais tau tias cov iav nyuaj dua. Cov tshuaj tiv thaiv zoo dua. Zoo dua thermal stability. Tab sis koj tsis tuaj yeem mus siab dhau, lossis lub khob ua nyuaj rau yaj thiab zoo li.
Hauv dej qab zib txiv qaub iav, silicon dioxide feem ntau yog li ntawm 60 txog 75 feem pua. Hauv aluminosilicate iav, nws khiav qis dua, feem ntau 52 txog 63 feem pua.
Aluminium Oxide
Ntxiv aluminium oxide thiab tej yam hloov. Nws txhim kho tshuaj stability. Qhov ntawd txhais tau hais tias lub iav tiv taus cov kua qaub thiab cov hauv paus zoo dua. Tej yam xws li sodium hydroxide, hydrochloric acid, txawm hydrofluoric acid rau qee yam. Nws kuj boosts mechanical zog. Siab compressive zog, siab tensile zog. Lub iav tsuas tuav tau zoo dua thaum muaj kev ntxhov siab.
Aluminium oxide kuj cuam tshuam rau thermal expansion. Nws coj tus nqi nthuav dav, uas ua rau lub khob ruaj khov thaum lub sij hawm tshuaj ntxiv dag zog. Tsawg warping, tsawg qhov hloov pauv.
Tus nqi ntawm aluminium oxide yeej txhais tau tias hom iav koj muaj. Tsawg aluminium, nruab nrab aluminium, siab aluminium, ultra siab aluminium. Qhov ntau koj ntxiv, mus txog rau ib qho taw tes, lub iav muaj zog dua.
Nyob rau hauv qis mus rau nruab nrab aluminium iav, uas yog qhov tseem ceeb dej qab zib txiv qaub, aluminium oxide zaum ntawm 5 mus rau 13 feem pua. Nyob rau hauv siab aluminium iav, nws mus txog 13 mus rau 24 feem pua.
Calcium Oxide
Calcium oxide yog muaj los pab nrog melting. Nws txo qis qhov kub uas xav tau los yaj cov batch thiab ua rau cov iav ntws yooj yim dua thaum tsim. Nws kuj pab txhawb rau tshuaj stability thiab txhua yam muaj zog.
Hauv dej qab zib txiv qaub iav, calcium oxide feem ntau khiav 5 mus rau 12 feem pua. Hauv aluminosilicate iav, nws qis dua, feem ntau 1 mus rau 5 feem pua. Ob qho laj thawj rau qhov ntawd. Ua ntej, hauv kev siv kho qhov muag siab kawg, calcium oxide tuaj yeem cuam tshuam nrog lub teeb kis tau tus mob, yog li koj khaws nws qis. Qhov thib ob, aluminium oxide nyob rau hauv aluminosilicate iav twb ua ntau npaum li cas calcium oxide yuav ua. Yog li koj xav tau tsawg dua.
Sodium Oxide
Qhov no yog ib qho tseem ceeb rau cov tshuaj ntxiv dag zog. Nws yog tus neeg ua si tseem ceeb hauv kev sib pauv ion. Sodium ions hauv iav sib pauv nrog cov poov tshuaj ions loj dua los ntawm cov ntsev da dej. Qhov kev pauv ntawd tso rau saum npoo hauv qab compression thiab ua rau lub iav muaj zog.
Sodium oxide kuj pab nrog melting. Nws txo qis viscosity kom cov iav ntws yooj yim dua ntawm qhov kub thiab txias. Qhov ntawd ua rau kev tsim khoom yooj yim dua.
Tab sis muaj kev sib pauv. Sodium oxide ntau dhau thiab koj pib poob txhua lub zog thiab thermal stability. Yog li koj khaws nws nyob rau hauv ib qhov chaw.
Hauv dej qab zib txiv qaub iav, sodium oxide feem ntau yog 10 mus rau 18 feem pua. Hauv aluminosilicate iav, nws qis dua, zoo li 0 mus rau 5 feem pua.
Lwm cov khoom xyaw
Tseem muaj lwm tus thiab. Lithium oxide, poov tshuaj oxide, magnesium oxide, boron oxide. Txhua tus ua lub luag haujlwm. Lithium pab nrog kev sib pauv ion thiab tso cai rau kom txo qis zog ntxiv. Potassium ntxiv qhov tob rau cov txheej txheem ntxiv dag zog. Magnesium txhim kho hardness thiab stability. Boron pab nrog thermal shock tsis kam thiab hluav taws xob.
Lub Takeaway
Npog iav zoo li yooj yim. Ib daim ntawv pob tshab. Tab sis dab tsi mus rau hauv nws yog ua tib zoo sib npaug ntawm cov ntaub ntawv. Txhua yam khoom muaj ib txoj haujlwm. Hloov ib qho thiab iav hloov nrog nws. Strength, clarity, zoo npaum li cas nws ntxiv dag zog, yooj yim npaum li cas nws yuav ua tau. Nws tag nrho rov qab los rau daim ntawv qhia ntawd.
