JPS648059B2 - - Google Patents
Info
- Publication number
- JPS648059B2 JPS648059B2 JP3050380A JP3050380A JPS648059B2 JP S648059 B2 JPS648059 B2 JP S648059B2 JP 3050380 A JP3050380 A JP 3050380A JP 3050380 A JP3050380 A JP 3050380A JP S648059 B2 JPS648059 B2 JP S648059B2
- Authority
- JP
- Japan
- Prior art keywords
- oau
- melting
- optical glass
- present
- pinholes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 239000005304 optical glass Substances 0.000 claims description 10
- 229910052776 Thorium Inorganic materials 0.000 claims description 7
- 229910052735 hafnium Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- -1 Furthermore Inorganic materials 0.000 claims 1
- 238000003466 welding Methods 0.000 description 7
- 229910018885 Pt—Au Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000006125 continuous glass melting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Glass Compositions (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050380A JPS56129617A (en) | 1980-03-11 | 1980-03-11 | Material for optical glass melting crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050380A JPS56129617A (en) | 1980-03-11 | 1980-03-11 | Material for optical glass melting crucible |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56129617A JPS56129617A (en) | 1981-10-09 |
| JPS648059B2 true JPS648059B2 (enExample) | 1989-02-13 |
Family
ID=12305612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3050380A Granted JPS56129617A (en) | 1980-03-11 | 1980-03-11 | Material for optical glass melting crucible |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56129617A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG165206A1 (en) * | 2009-03-26 | 2010-10-28 | Autium Pte Ltd | Platinum alloys and method for forming the same |
-
1980
- 1980-03-11 JP JP3050380A patent/JPS56129617A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56129617A (en) | 1981-10-09 |
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