best diameter 200mm to 700mm graphite electrode
The quality index of best diameter 200mm to 700mm graphite electrode
The main indicators of quality and function of best diameter 200mm to 700mm graphite electrode are: bulk density db, resistivity ρ, bending strength, elastic modulus E, thermal expansion coefficient α and ash content A%. According to the difference between the specifications and manufacturing processes of the best diameter graphite electrode, these indicators and materials are divided into general power 200mm graphite electrode (RP), high power 700mm graphite electrode (HP), and ultra-high power best 200mm to 700mm graphite electrode. (UHP) Three kinds. Later, the best diameter 200mm to 700mm graphite electrode manufacturer was able to increase the density of the best diameter 200mm to 700mm graphite electrode (HD) and the semi-ultra-high best diameter 200mm to 700mm graphite electrode (SHP) according to the functional requirements of different users.
On the basis of national norms, each company has its own corporate norms, and customers will make their own order of quality norms. The relative volume density is the ratio between the quality management of the best diameter 200mm to 700mm graphite electrode data sample and its volume, in g/cm3. The larger the volume density, the denser the working electrode is, which is positively related to the strength and the function of the antioxidant system. Generally speaking, the greater the influence of the volume density of the same type of electrode, the lower its resistivity.
Resistivity is a parameter to measure the conductivity of the electrode. It refers to the resistance of the conductor to the current when the current passes through the conductor. The value is equal to the resistance of a conductor with a length of 1m and a cross-sectional area of 1m2 at a certain temperature, which reduces the cost in operation.
The flexural strength is a parameter that characterizes the function of the mechanical system for the study of graphite structure data. It is also called the flexural strength. It means that when the external force is perpendicular to the axis of the object, the object will bend to the momentary limit caused by the external force to resist the risk. Ability, the unit is MPa. High-strength electrodes and joints are less likely to break when used in the network.
The modulus of elasticity is an important aspect of the mechanical function. It is an index to measure the elastic deformation ability of the material, and refers to the stress-strain ratio within the elastic deformation range. The larger the modulus of elasticity, and the greater the stress required for elastic deformation to occur, it simply, the greater the modulus of elasticity of brittle materials, the smaller the modulus of elasticity of flexible materials.
The thermal expansion coefficient of graphite as an electrode is a very important thermal function parameter. The lower the value, the stronger the thermal stability of Chinese products, the higher the oxidation resistance, and the less broken and costly it can reflect in use. The lower.
Ash refers to other components in solid products other than carbon graphite. As the ash content in the electrode, graphite is directly affected by the ash content of the materials used. The ash content of petroleum coke needle coke is low. Therefore, the ash content of graphite through the electrode generally does not exceed 0.5%, and the ash content within 1% has no effect on steelmaking. Obviously, but the impurity elements in the ash will reduce the function of the anti-oxidation system of the working electrode.