Graphite heating refers to the use of graphite heating elements as electric heating body parts in various applications.
Graphite is a material that has good electrical and thermal conductivity, making it ideal for heating purposes.
7 Key Points to Know About Graphite Heating
1. Common Applications
Graphite heating elements are commonly used in special industrial furnaces as a heating element.
2. Material Composition
They are manufactured from a high purity carbon composite, providing excellent temperature uniformity, longevity, mechanical strength, and repeatability.
3. Design Features
The design of graphite heating elements includes rounded edges and proper gap spacing to minimize gas ionization at elevated temperatures, increasing their life expectancy and maximum obtainable temperatures.
4. Electrical Properties
One of the advantages of graphite heating elements is their stable resistivity and low resistance temperature coefficient. This means that they maintain a consistent level of electrical resistance even at high temperatures.
5. Thermal Properties
Graphite also has a small thermal expansion coefficient and a large blackness, which further enhances its suitability as an electric heating element material.
6. Operational Advantages
Graphite heating elements have several benefits compared to other materials. They have a lower thermal mass compared to previous generation graphite rod or bar elements, making them more efficient in heating processes. Graphite is also unaffected by thermal shock and will not degrade due to frequent heating and cooling. Additionally, graphite heating elements are more durable than their molybdenum counterparts and have better resistance to operational mishaps such as accidental breakage or braze alloy spill.
7. Temperature Capabilities
Graphite furnaces using graphite heating elements are capable of operating at high temperatures. They can operate at 3000°C on a continuous basis in inert gas or 2200°C in a vacuum. This makes them suitable for various thermal applications that require extreme temperatures.
Continue Exploring, Consult Our Experts
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