Tungsten hot zone and heating shields and working racks is best choice for LED Sapphire melting growing furnace application.
Tungsten hot zone and heating shields and working racks is best choice for LED Sapphire melting growing furnace application
We can produce many varieties of tungsten and molybdenum crucibles for single crystal growing process as a high temperature durability container in this application with its best properties.
W crucibles Mo crucibles Customized crucibles Lids Dies Heating shields
1. Physical and chemical properties
(1) Density: 19.2g /cm3
(2) Surface roughness: < 3.2
(3) Purity: W99.97%(min.)
(4) Application temperature environment:1800~2750
2. Specifications:
1)Dimensions and tolerances Unit:mm
thickness | tol | width | tol | length | tol | quality | flatness |
0.100 | +/- 0.030 | 200.0 | +/- 0.47 | 1000 | +5/-0 | cold rolled, bright | 15 |
0.200 | +/- 0.035 | 200.0 | +/- 0.47 | 1000 | +5/-0 | cold rolled, bright | 15 |
0.300 | +/- 0.035 | 200.0 | +/- 0.70 | 1000 | +5/-0 | cold rolled, bright | 15 |
0.400 | +/- 0.050 | 200.0 | +/- 0.70 | 1000 | +5/-0 | cold rolled, pickled | 15 |
0.500 | +/- 0.060 | 200.0 | +/- 1.00 | 1000 | +5/-0 | cold rolled, pickled | 15 |
0.500 | +/- 0.110 | 500.0 | +/- 1.20 | 1000 | +5/-0 | hot rolled, pickled | 20 |
1.000 | +/- 0.200 | 500.0 | +/- 1.20 | 1000 | +5/-0 | hot rolled, pickled | 20 |
3. Manufacturing process and equipment
Item | Process | Equipment | Quality check point |
1 | Powder mixed and purified | Mixer and Purified furnace | GDMS Powder grain size properties |
2 | Pressed & machined blank | Isostatic pressing machine | Measurement of rough-processed |
3 | sintering | High temperature vacuum sintering furnace | Dimension measurements for product |
4 | Hot rolling | Hot rolling machine | Measurements (thickness , width) |
5 | Annealing | Anneal furnace | Side crack, stratification for top |
6 | Check |
| Dimension Flatness and density |
7 | Warm rolling | High speed rolling machine | Dimension Flatness and density |
8 | Annealing | Annealing furnace |
|
9 | Check |
| Dimension Flatness and density |
10 | Cold rolling | High speed rolling machine |
|
11 | cutting | Hydraulic cutting machine | Dimension Measurements |
12 | annealing | Vacuum annealing furnace | Surface quality bubble on surface, |
13 | machining | x-ray cutting machine | stress, Flatness |
14 | check | Flat-stone mill | Final Quality |
15 | package |
| certificate of quality |
