ZHENGSHAN TECHNOLOGY

Electrode paste is a commonly used material in industrial production, mainly used for electrode manufacturing of high-temperature equipment such as electric arc furnaces and mineral heat furnaces. The quality of electrode paste directly affects the operational efficiency and safety production of electric furnaces. This article will explore how to improve the conductivity and stability of electrode paste.
1. Selection of raw materials
1.1 Petroleum coke
Petroleum coke is one of the main raw materials for electrode paste, and its quality has a significant impact on the performance of electrode paste. High quality petroleum coke should have high fixed carbon content, low ash content, and low sulfur content. Choosing high-quality petroleum coke can significantly improve the conductivity and stability of electrode paste.
1.2 Asphalt
Asphalt is the binder of electrode paste, and its quality and quantity directly affect the performance of electrode paste. Choosing asphalt with moderate softening point and high viscosity can enhance the adhesion and conductivity of electrode paste.
2. Ingredients and mixing process
2.1 Proportion of ingredients
A reasonable proportion of ingredients is the key to ensuring the performance of electrode paste. Usually, the ratio of petroleum coke to asphalt should be adjusted within a certain range to ensure that the electrode paste has good fluidity and formability.
2.2 Mixing process
The quality of the mixing process directly affects the uniformity of the electrode paste. Using efficient mixing equipment and processes to ensure thorough mixing of raw materials can improve the conductivity and stability of electrode paste.
3. Molding and baking
3.1 Molding process
The forming process is a key link in the production of electrode paste. By using high-pressure molding technology, the density and strength of electrode paste can be improved, thereby enhancing its conductivity and stability.
3.2 Baking process
The roasting process is a key step in the solidification of electrode paste. Reasonable roasting temperature and time can ensure that the electrode paste is fully cured, improving its conductivity and stability. Usually, the calcination temperature should be controlled between 500-600 ℃, and the time should be adjusted according to the thickness and density of the electrode paste.
4. Quality control
4.1 Process Monitoring
Strict process monitoring should be carried out at every stage of electrode paste production to ensure that each process operates at its optimal state. Regular inspection of the quality of raw materials and finished products, timely detection and resolution of problems, can effectively improve the conductivity and stability of electrode paste.
4.2 Performance Testing
During the production and use of electrode paste, necessary performance tests should be conducted, such as resistivity, compressive strength, thermal expansion coefficient, etc. By testing data, production processes can be adjusted in a timely manner to optimize the performance of electrode paste.
5. Use and maintenance
5.1 Reasonable use
Reasonable use of electrode paste is an important factor in ensuring its performance in electric furnace production. Regularly adding electrode paste to maintain a balance between electrode length and paste column height can improve the conductivity and stability of the electrode paste.
5.2 Maintenance and upkeep
Regular maintenance and upkeep of the electric furnace and electrodes, inspection of the use of electrode paste, and timely handling of any abnormal phenomena in the electrode paste, such as sticking or hard breakage, can extend the service life of the electrode paste and improve its conductivity and stability.