The quartz glass fused by vacuum method has low OH content about less than 3ppm,therefore can be used for metal
halogen lamp ,semiconductor due to high viscosity.(The products probably have some vacuume small bubble or gas
line ).
This method is applied to make translucent materials (U300 and U310)and used for insulator of semiconductor quartz
parts.
Chemical element composition (Typical data) ppm
|
|
Al |
Fe |
K |
Li |
Cu |
Na |
B |
Ca |
Mg |
P |
Ti |
OH |
|
NC-300 |
20.00 |
0.40 |
1.00 |
1.4 |
0.01 |
1.50 |
0.20 |
0.50 |
--- |
--- |
--- |
<3 |
|
NC-310 |
15.00 |
0.20 |
0.60 |
0.40 |
0.02 |
0.80 |
0.10 |
0.40 |
0.05 |
0.06 |
1.20 |
<3 |
|
NC-U300 |
45.00 |
1.00 |
2.50 |
1.50 |
0.15 |
5.00 |
--- |
1.50 |
0.75 |
--- |
--- |
---- |
|
NC-U310 |
15.00 |
0.20 |
0.60 |
0.40 |
0.02 |
0.80 |
0.10 |
0.40 |
0.05 |
0.06 |
1.20 |
---- |
Transparent quartz tube general dimension and tolerance (mm)
|
Desingnation |
OD |
Wall |
Length |
Max.Siding |
Max.Ovality |
Max.Bow |
|
3-15 |
±0.50 |
±0.15 |
±1.0 |
0.09 |
0.20 |
3‰ |
|
15-30 |
±1.00 |
±0.20 |
±1.0 |
0.10 |
0.20 |
3‰ |
|
50-80 |
±1.25 |
±0.30 |
±1.0 |
0.15 |
0.25 |
3‰ |
|
80-120 |
±2.00 |
±0.40 |
±1.5 |
0.16 |
0.25 |
3‰ |
|
120-180 |
±3.0 |
±0.50 |
±2.0 |
0.5 |
0.30 |
5‰ |
|
180-240 |
±3.0 |
±0.70 |
±2.0 |
0.6 |
2.0 |
5‰ |
|
240-300 |
±3.0 |
±0.80 |
±2.0 |
0.7 |
2.5 |
5‰ |
|
>300 |
±3.0 |
±1.0 |
±2.0 |
0.8 |
3.0 |
5‰ |
More severe tolerance can be supplied
Translucent quartz tube general dimension and tolerance (mm)
|
Desingnation |
OD |
Wall |
Length |
Max.Siding |
Max.Ovality |
Max.Bow |
|
8-15 |
±0.50 |
±0.50 |
±1.0 |
0.50 |
0.40 |
3‰ |
|
15-25 |
±0.70 |
±0.50 |
±1.0 |
0.50 |
0.40 |
3‰ |
|
25-40 |
±0.80 |
±0.60 |
±1.0 |
0.80 |
0.50 |
3‰ |
|
40-60 |
±1.50 |
±0.80 |
±1.0 |
0.80 |
0.60 |
3‰ |
|
60-90 |
±2.0 |
±1.0 |
±1.5 |
1.0 |
0.80 |
3‰ |
|
90-120 |
±3.0 |
±1.50 |
±2.0 |
1.50 |
1.0 |
5‰ |
More severe tolerance can be supplied
▲Translucent square plate Max size：L500*W1000*T10-25(mm)
▲Translucent disc Max size: Dia600*T10-25(mm) |
