National standard medium temperature asphalt
Medium-temperature asphalt is a black solid at room temperature that solidifies into a brittle solid with shell-like fractures at a certain temperature, appearing as a glass phase; There is no specific melting point, it melts within a certain range, and there is no thermal effect during the solidification process. The composition of asphalt is extremely complex, mainly composed of aromatic hydrocarbons with three or more rings, as well as heterocyclic compounds containing elements such as oxygen, nitrogen, and sulfur, and a small amount of high molecular weight carbon materials.
Medium-temperature asphalt is the residue of tar distillation, with a tar yield of 54-56%. It is composed of aromatic compounds with more than three rings, oxygen-containing, nitrogen-containing, sulfur-containing heterocyclic compounds, and a small amount of high molecular weight carbon substances. The molecular weight range of asphalt components is 200 to 2000, with a maximum of 3000. Medium-temperature asphalt is classified according to its different softening points. The softening point of medium-temperature asphalt is 65-90 ℃
Source of National Standard Medium Temperature Coal Asphalt
Medium-temperature coal tar is extracted from high-temperature coal tar through deep processing, including benzene, industrial naphthalene, wash oil, anthracene oil, phenol oil, etc., to produce asphalt. Used in carbon product factories, carbon products mainly include: pre-baked anode, carbon block, graphite electrode, graphite electrode, graphite square, graphite block, electrode paste, anode paste, sealing paste, electrode material, high-power electrode rod, cold ramming paste, black metallurgical carbon, electrode carbon brush, electric furnace steelmaking electrode, chemical battery positive electrode material, etc
Medium Temperature Asphalt Usage
Production of carbon products: Medium-temperature asphalt is an important raw material for producing carbon products, including pre-baked anodes, carbon blocks, graphite electrodes, graphite squares, graphite blocks, electrode paste, anode paste, sealing paste, electrode materials, high-power electrode rods, cold ramming paste, black metallurgical carbon, electrode carbon brushes, electric furnace steelmaking electrodes, chemical battery positive electrode materials, etc. The chemical composition and physical properties of medium-temperature asphalt make it an ideal choice for manufacturing these products.
Medium temperature asphalt can be used as the main raw material for carbon slurry, which can improve the flexibility and elasticity of the slurry, reduce production costs, and improve the high-temperature resistance of the carbon slurry. Specifically, the application of medium-temperature asphalt in pastes has the following advantages:
1. Reduce production costs: The price of medium-temperature asphalt is lower than that of heavy asphalt, so using medium-temperature asphalt can reduce the production cost of carbon slurry.
2. Improve flexibility and elasticity: Medium-temperature asphalt has good flexibility and elasticity, so using medium-temperature asphalt can improve the flexibility and elasticity of electrode paste, making it more suitable for various complex electrode shapes.
3. Improve high-temperature resistance: Medium-temperature asphalt has good high-temperature resistance, so using medium-temperature asphalt can improve the high-temperature resistance of electrode paste, thereby extending the service life of electrodes.
4. Improving electrical insulation performance: Medium-temperature asphalt has good electrical insulation performance, so using medium-temperature asphalt can improve the electrical insulation of electrode paste and ensure the safe operation of electrodes.
