L-LAL67
Applying composition development and production technologies developed over many years, we have succeeded in lowering Tg (compared to our existing product L-LAL12) to 70ºC. This will greatly extend the service lives of metallic molds used for glass molding.
Final preparations are underway for volume production, and we have begun to offer samples.
Please contact a sales representative for details.
| |
L-LAL67 |
L-LAL12 |
|---|
| Eco Optical Glass |
○ |
○ |
|---|
| Refractive Index nd |
1.66910 |
1.67790 |
|---|
| Abbe Number νd |
55.4
55.39 |
54.9
54.89 |
|---|
CTE α
(10-7/°C) | -30～70°C |
82 |
76 |
|---|
| +100～300°C |
103 |
90 |
|---|
| Transformation Point Tg(°C) |
490 |
562 |
|---|
| Yield Point At(°C) |
520 |
600 |
|---|
| Coloring |
λ80 |
360 |
365 |
|---|
| λ5 |
285 |
295 |
|---|
| Chemical Resistance | RW(P) |
4 |
1 |
|---|
| RA(P) |
4 |
4 |
|---|
| W(S) |
4 |
3～4 |
|---|
| SR |
53.2 |
53.2 |
|---|
| PR |
4.0 |
4.0 |
|---|
| Specific Gravity |
3.52 |
3.48 |
|---|
| Knoop Hardness Hk |
570[6] |
600[6] |
|---|
| Abrasion Aa |
117 |
112 |
|---|
| Detail Catalog DATA |
During the data acquisition |
PDF |
|---|
| Available shapes |
•pressing
•saw cut center-less
groundcylindrical blanks
•polished ball
•cut blanks |
•pressing
•saw cut center-less
groundcylindrical blanks
•polished ball
•cut blanks |
|---|
Please note that the physical properties may change, since they are data obtained during development.
Please consult us about available size and tolerance.
