Insulated Bottle Instruction Manual
Release date:
2018-11-01
The "KINGBO" brand carbon/carbon composite insulation sleeve is a patented product developed by our company using proprietary technology (Patent Nos.: ZL200810030753.1, ZL201120125364.4, ZL201110104801.9). It boasts exceptional properties such as high specific strength, excellent resistance to high temperatures and corrosion, robust protection against external mechanical damage, superior thermal shock resistance, and low thermal conductivity. These features make it far superior to conventional high-purity isostatically pressed graphite sleeves in terms of enhancing furnace efficiency and improving energy-saving insulation performance. As a result, it represents the ideal next-generation upgrade for refractory insulation sleeves used in single-crystal furnaces and various high-temperature vacuum/protective-atmosphere furnaces.
I. Manufacturing Standards:
Q/NARM 001-2017 Carbon/Carbon Composite Products
II. Technical Specifications:
|
Density (g/cm³) |
1.2 |
|
Flexural Strength (MPa) |
80 |
|
Thermal conductivity (W/m·K) |
10 |
|
Coefficient of thermal expansion (×10⁻⁶/K) |
0.9 |
|
Ash content (ppm) |
200 |
III. Maximum Operating Temperature:
In air, the product’s maximum operating temperature is 370°C; under vacuum conditions, it can withstand up to 2300°C; and in a protective atmosphere, the maximum operating temperature reaches 2500°C.
IV. Important Notes:
1. The product is a high-purity carbon/carbon composite material—please take care to avoid staining or contamination.
2. Before using the product, it must be loaded into the furnace and fired under no-load conditions. Refer to the following firing process:
① During calcination, use a stepwise heating method and do not introduce argon gas at low temperatures;
② Calcination temperature > 1600°C (or calcination power exceeds the melting power by approximately 5 kW);
③ Calcination time is (4–8) hours;
④ Calcination is performed (1–3) times. During multiple baking cycles, any impurities that may have adhered to the furnace or the material being calcined during the previous firing must be thoroughly cleaned out before proceeding with the next calcination.
3. During installation, ensure the inner surfaces of products such as carbon/carbon insulation tubes are thoroughly cleaned and placed securely in a stable position.
4. Although carbon/carbon composites are significantly stronger than graphite, they remain brittle materials—so take care to avoid forceful impacts and drops.
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