CGM Online

 The mechanical strength of electrode paste includes compressive strength, flexural strength and tensile strength 　　The electrode paste height refers to the height from the upper end of the electrode clamp to the top of the electrode paste. If the electrode paste is too high, the coarse and fine particles in the electrode paste are prone to delamination, or the electrode barrel is damaged due to the pressure of the paste column is too high. If the electrode paste column is too low, it is difficult to obtain a dense electrode due to the pressure of the paste column is too small and the filling property is poor. The electrode paste is consumed too quickly. The proper height of electrode paste column can improve the quality of electrode baking and reduce consumption. 　　Electrode paste is the conductive electrode of various submerged arc furnaces and is an indispensable product in industrial production. In the national standard of electrode paste, there is no mechanical strength q

 Electrode paste is a relatively simple product in the production of carbon products, but their production links are basically the same from the calcination of raw materials to crushing, screening and the front-end of ingredients. Moreover, it is very important to directly affect the output of finished products, the cost of production, the final quality of products, the scale of capital construction, the investment of capital construction and the cycle of capital construction. 　　In order to obtain good products and control the performance of products, regular carbon production enterprises with scale must first break and screen the calcined carbon raw materials, store the materials separately according to various particle sizes, then design the formula according to the use, variety and specification of the products, and strictly measure the ingredients according to the formula. In order to obtain good products, ensure the good performance of products and ensure the use of products.

 Anode paste is the predecessor of preparing anodes in electrolyzers in aluminum plants. In the 40 years before 1995, the anode paste was once the largest product in China's aluminum carbon products. After 2000, this product will gradually be replaced by anode carbon blocks. It is the product with the largest output among carbon products. The anode paste is a carbon paste made of petroleum coke and pitch coke as aggregates and coal tar pitch as a binder. It is used as anode material for continuous self-baking aluminum electrolytic cell. Because of its high content of binder (more than 24%), it is paste-like before the upper part of the electrolytic cell is sintered, so it is called anode paste. The prepared anode is not only capable of good electrical conductivity, but also resistant to high temperature and corrosion, and at the same time the price is low. The resistivity of the preliminary anode is 50-70 μΩ.m, plus the lead and contact resistance, during normal aluminum electrolys

 The reason for the soft fracture of the electrode paste is quite right. Generally speaking, there are mainly the following aspects: (1) The electrode paste contains too much volatile matter. (2) The iron plate of the electrode shell is too thin or too thick. Too thin will not be able to withstand large external forces and rupture, causing the electrode iron shell to fold or leak and softly break when pressed and put; too thick will cause the iron shell and the electrode core to not contact closely and cause the core to cross. It will also cause soft disconnection. (3) Poor production of the electrode iron shell or poor welding quality will cause cracking, which will lead to leakage or soft fracture. (4) When the electrode is lowered, the load of the electric furnace is not reduced or reduced too little. After the electrode is discharged, the load increases too fast, which will also cause the electrode to softly break (except for large furnaces). (5) The electrode is lowered too freque

 In the early 1960s, major changes occurred in electric furnace steelmaking technology, especially the adoption of ultra-high-power electric arc furnace technology, which clarified the technical direction for improving the production efficiency of electric furnaces. From the 1960s to the mid-1980s, the electric furnace smelting cycle was shortened from 3 hours. By 4 hours, the acceleration of the continuous casting rhythm has promoted the improvement of the production efficiency of electric furnace steelmaking, that is, increasing the capacity of the electric furnace, increasing the energy input to the electric furnace per unit time, and shortening the electric furnace smelting cycle. On the basis of ultra-high-power power supply, the international community has focused on the development of modern electric furnace smelting technologies that increase heat energy, such as enhanced oxygen supply, scrap preheating, and hot metal smelting. The development of these technologies has greatly

1. Long production cycle. The production cycle of ordinary power graphite electrodes is about 45 days, the production cycle of ultra-high power graphite electrodes is more than 70 days, and the production cycle of graphite electrode joints that require multiple dipping is longer. 2. High energy consumption. The production of 1t of ordinary power graphite electrode requires about 6000kw·h of electricity, thousands of cubic meters of gas or natural gas, and about 11t of metallurgical coke particles and metallurgical coke powder. 3. Many production processes. The production process includes raw material calcination, crushing and grinding, batching, kneading, molding, impregnation, graphitization and mechanical processing. Its production requires a lot of special mechanical equipment and kilns with special structures, the construction investment is relatively large, and the investment recovery period is relatively long. 4. A certain amount of dust and harmful gases are generated during the