Advantages Of Graphite Rods Over Impregnated Graphite
Dec 13, 2022
Pressed graphite tubes and graphite rods are based on mixing graphite powder (pure natural graphite or synthetic graphite) and various binders in a certain proportion, and then pre-molding, pressing (hot extrusion or cold forming) or high-temperature heat treatment Craft made. This method can be used to produce pipelines, plates, pipes, gate valves, pumps, etc., and can also be used as metal composites, couplings, mechanical sealing rings, cylinder pistons, etc. Compared with impregnated graphite, it has the following characteristics:
1. The manufacturing method is relatively simple, and the raw materials can be made of crushed graphite to produce graphite products to control the cost.
2. The porosity is small, the arrangement structure is uniform, and the water permeability is good.
3. After forming, the shape is high-density and bright, and no processing is required except for the connection end.
4. The heat transfer coefficient is smaller than that of impregnated graphite, and the thermal expansion coefficient is very large.
5. It has excellent chemical reliability, heat transfer, electrical conductivity, temperature resistance, heat resistance and high impact toughness.
At present, various resin graphite pressure tubes, 300°C medium temperature treatment graphite pressure tubes and epoxy impregnated impermeable graphite tubes are all pressure type impermeable graphite tubes.
