Low-hydroxyl fluorotellurate infrared optical glass and preparation method thereof
A technology of low hydroxyl fluorotellurate and hydroxyfluorotellurite, which is applied in glass manufacturing equipment, glass furnace equipment, glass molding, etc. , high glass transition temperature and other problems, to achieve the effect of low hydroxyl absorption coefficient, good thermal and chemical stability, high glass transition temperature
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Embodiment 1
[0060] 1) Put TEO 2 , BAF 2 , LA 2 O 3 And Laf 3 Physical drying is performed; the specific method of the physical drying is: placed in a high temperature furnace or heated on a heating plate, heated to 600 ° C, holding up 6 h;
[0061] 2) Refer to the following mole percent, weigh the raw materials in step 1)
[0062]
[0063] 3) All raw materials that will be proud are fully mixed in a mortar and have a uniform and form a complex; the grinding time is 20 min;
[0064] 4) Pour the complex into the corundum, then placed the crucible of the crucible in the muffle furnace; the preheated temperature is 450 ° C, the time is 120 min;
[0065] 5) Transferred fitting material together with the crucible, transferred to a high temperature muffle, fuse under the protective atmosphere of dry air, to obtain a low hydroxyfluoride glass liquid; the melted temperature is 950 ° C Time is 150min;
[0066] 6) Pour the low-hydroxyfluoruric acid salt glass into the preheated mold, to obtain a trans...
Embodiment 2
[0070] 1) Put TEO 2 , BAF 2 , LA 2 O 3 And Laf 3 Physical drying is performed; the specific method of the physical drying is: placed in a high temperature furnace or heated on the heating plate, heated to 450 ° C, heat insulation 12h;
[0071] 2) Refer to the following mole percent, weigh the raw materials in step 1)
[0072]
[0073] 3) All raw materials weigh will be sufficiently mixed in a mortar and uniformly ground, form a compound; the grinding time is 60 min;
[0074] 4) Pour the complex into the corundum, and then place the corundum to preheat in the muffle furnace; the preheating temperature is 400 ° C, the time is 40 min;
[0075] 5) Turn the preheating with the crucible, transfer to the high temperature muffle, in N 2 The protective atmosphere is fused to give a low hydroxyfluoruricate glass liquid; the fuse temperature is 950 ° C, and the time is 100 min;
[0076] 6) Pour the low-hydroxyfluoruricate glass liquid into the preheated mold, to obtain a transparent and mo...
Embodiment 3
[0080] 1) Put TEO 2 , BAF 2 , LA 2 O 3 And Laf 3 Physical drying is performed; the specific method of the physical drying is: placed in a high temperature furnace or heated to 350 ° C, heat insulation 24h;
[0081] 2) Refer to the following mole percent, weigh the raw materials in step 1)
[0082]
[0083] 3) All raw materials weigh will be fully mixed in a mortar and have uniform grinding, forming a compound; the grinding time is 40 min;
[0084] 4) Pour the complex into the corundum crucible, and then place the corundum in the muffle furnace; the temperature of the preheating is 300 ° C, the time is 100 min;
[0085] 5) Contains the preheated mating as a crucible, transferred to a high temperature muffle furnace, fuse under the protective atmosphere of Ar, to obtain a low hydroxyfluoride glass liquid; the melted temperature is 950 ° C, Time is 120min;
[0086] 6) Pour the low-hydroxyfluoruricate glass liquid into the preheated mold, to obtain a transparent and molded low hydro...
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Abstract
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