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FHL -VACTM Embedded Cylindrical Insulation Segment
FHL-VACTM Embedded panels are special type of
segments where heating system is embedded inside the insulating module which
radiate thermal energy into the required chamber through the window made,
meanwhile ceramic panel resist energy loss to atmosphere.
We manufacture the following product in various size and grade to meet our
customer needs.
Custom Built Board Parameters:
• From ID: 150mm up to Customer Requirement
• We can also work for your exacting requirements
Application:
•Pit Furnace
•Bell Furnace
•Split Furnace
Technical Data of FHL-VAC ™ Vacuum Formed Ceramic Fiber Modules & Panels
| Parameter | FHL-M 1150 | FHL-Z 1325 | FHL- HT 1550 |
|---|---|---|---|
| Classification Temp (°C) | 1260 | 1425 | 1650 |
| Max. Continuous Working Temp. (°C) | 1150 | 1325 | 1550 |
| Density Range (Kg/m3) | 200-240 | 200-240 | 200-240 |
| Linear Shrinkage (%) (24 Hour Continuous Working Temp.) | 1< | 1< | 1< |
Chemical Composition (%)
| Parameter | FHL-M 1150 | FHL-Z 1325 | FHL- HT 1550 |
|---|---|---|---|
| Al2O3 | 47 | 37.5 | 66 |
| SiO2 | 53 | 49.5 | 33 |
| Zr | - | 13 | - |
Thermal Conductivity (W/mK)
| Parameter | FHL-M 1150 | FHL-Z 1325 | FHL- HT 1550 |
|---|---|---|---|
| At 200°C | 0.065 | 0.065 | 0.065 |
| At 600°C | 0.13 | 0.13 | 0.14 |
| At 1000°C | 0.27 | 0.28 | 0.24 |
| At 1200°C | 0.40 | 0.38 | 0.33 |
| At 1300°C | 0.48 | 0.47 | 0.39 |
| At 1400°C | - | 0.53 | 0.45 |
| At 1500°C | - | - | 0.51 |
| At 1600°C | - | - | - |
Technical Data Sheet of FHL-Heating Alloys
| Fe-Cr-Al Heating Element Alloy 1 Alloy 2 |
Ni-Cr 80 Heating Element | ||
|---|---|---|---|
| Standard Chemical Composition (%) | Al 6.0 | Al 6.0 | Cr 19-21 |
| Cr 23 | Cr 23 | Fe < 1 | |
| Fe 71 | Fe 70 | Ni 77 or more | |
| Other Elements in Small Quantity | |||
| Max. Duty Temp. of Heating Element (°C) | 1400 | 1420 | 1100 |
| Electric Resistivity (Ω mm2 m-1) | 1.45 ± 5% | 1.45 ± 5% | 1.08 ± 5% |
| Expansion from Thermal Factor | 15.1 x 10-6 | 14.8 x 10-6 | 17.6 x 10-6 |
| Hardness Hv Melting Point (°C) |
200-240 1500 |
200-240 1500 |
200-190 1500 |
| Electric Resistance Temp. Coefficient | 33 x 10-6 | 15 x 10-6 | 58 x 10-6 |
| Increase from Oxidation 1200°C (mg/cm2h) | 0.05 | 0.05 | 0.25 or less |
| Tensile Strength MPa (Kgf/mm2) |
650-900 (65-90) |
650-900 (65-90) |
700-900 (70-90) |
| Specific Gravity Elongation (%) |
7.1 15-25 |
7.1 15-25 |
8.4 20 or more |