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Graphite products for the heat treatment industry mainly include: graphite heating rods, graphite furnace bed guides, graphite nozzles, graphite conductive rods, graphite connectors, graphite columns, graphite furnace bed holders, graphite screws, graphite nuts and graphite beams.
Home Products Heat Treatment Industry / Graphite Fittings
Graphite fittings are specialized components offering exceptional high-temperature and chemical resistance. However, their brittleness limits their use in high-stress applications. Proper selection and installation are critical for optimal performance.
Graphite fittings are components made from graphite used to connect or join sections of pipes, tubing, or other equipment, especially in high-temperature or corrosive environments. They are valued for their unique properties.
High Temperature Resistance: Graphite can withstand extremely high temperatures (up to 3000°C in non-oxidizing atmospheres) without melting or significant degradation. This makes them suitable for applications where other materials would fail.
Chemical Inertness: Graphite is highly resistant to many corrosive chemicals, including acids, bases, and solvents. This allows it to be used in aggressive chemical processing environments.
Self-Lubricating: Graphite has inherent lubricating properties, reducing friction and wear in sliding or rotating applications.
Thermal Conductivity: Graphite can conduct heat effectively, which can be advantageous in some applications for heat dissipation or uniform heating.
Low Thermal Expansion: Graphite has a low coefficient of thermal expansion, meaning it changes size minimally with temperature changes. This is crucial for maintaining tight seals and preventing leaks at high temperatures.
Machinability: Graphite is relatively easy to machine into complex shapes, allowing for the creation of custom fittings.
Lightweight: Compared to many metals, graphite is relatively lightweight.
Resistance to Thermal Shock: Certain grades of graphite are resistant to sudden temperature changes, making them suitable for fluctuating temperature environments.
Graphite fittings are used in a variety of industries, including:
Chemical Processing: Handling corrosive chemicals, acids, and solvents.
High-Temperature Furnaces: Connecting piping and equipment in high-temperature environments.
Semiconductor Manufacturing: Handling gases and chemicals in cleanroom environments.
Aerospace: Certain high-temperature applications.
Nuclear Industry: Some specialized applications where corrosion resistance and neutron moderation are required.
Metallurgy: Applications involving molten metals.
Temperature: Operating temperature range.
Chemical Compatibility: The specific chemicals the fitting will be exposed to.
Pressure: Operating pressure.
Mechanical Loads: Forces and stresses the fitting will experience.
Sealing Requirements: The level of leak-tightness required.
Graphite Grade: Different grades of graphite have different properties (e.g., density, porosity, strength). The correct grade must be selected for the application.
Cost: The cost of the fitting relative to other materials.
Service Life: The expected lifespan of the fitting.
Graphite fittings are typically manufactured using:
Machining: Graphite blocks are machined into the desired shape using CNC machines.
Molding: Powdered graphite is mixed with a binder and molded into the desired shape, then heated to remove the binder and sinter the graphite.
Extrusion: Graphite paste is extruded through a die to create long shapes, which can then be cut and machined.
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