uhp 400mm graphite electrode with low resistivity for arc furnace

It is very important to discuss the problems and improvement measures in the industrial production process of uhp 400mm graphite electrode with low resistivity for arc furnace.

The production process of uhp 400mm graphite electrode with low resistivity for arc furnace in China has been developed for more than half a century.

On the one hand, malicious competition from manufacturers of uhp 400mm graphite electrode with low resistivity for arc furnace has made it difficult for many manufacturers of uhp 400mm graphite electrode with low resistivity for arc furnace to develop or even close down.

On the other hand, more than 80% of large-scale DC electric arc furnaces in my country must import large-scale ultra-high power uhp 400mm graphite electrode with low resistivity for arc furnace from abroad. The development of uhp 400mm graphite electrode with low resistivity for arc furnace industry is far behind the requirements of uhp 400mm graphite electrode with low resistivity for arc furnace industry.

Even the ordinary power uhp 400mm graphite electrode with low resistivity for arc furnace has problems in the production process, such as low yield, high production cost, and poor use effect. Especially when the uhp 400mm graphite electrode with low resistivity for arc furnace industry is at a low point, it is necessary to explore the existing problems and improve the production process.

Let’s take ingredients as an example. Mix ingredients 1. Due to the choice of vibrating screen or sun screen, the particle purity is very low, and the particle purity of many manufacturers is only 50%-60%. Therefore, the granular materials of pots and pans vary greatly, and it is difficult to ensure the stability of the paste. 2. Many manufacturers of uhp 400mm graphite electrode with low resistivity for arc furnace have not yet used electronic scale components. There are too many human factors that affect the ingredients, resulting in large differences in the plasticity and particle size composition of the paste in the pot and the pot. 3. Too many ingredients.

There are many manufacturers of uhp 400mm graphite electrode with low resistivity for arc furnace, because workers pay according to the output, no matter the maximum output of the kneading pot, they blindly manufacture more ingredients. During the production process, the material on the kneading pot is still there, and there is also dry material in the middle of the paste. Of course, the quality of the green body cannot be guaranteed. 4. Too detailed. Many manufacturers of uhp 400mm graphite electrode with low resistivity for arc furnace still use powders with a molecular purity of 75% or even more than 80%. In the screening analysis, the powders are not standardized and the powder samples are not dry. Some manufacturers do not even screen the powders. Specified glass spheres, which will result in the production of too fine molecules.

Moreover, it is difficult for domestic kneading pots to mix the fine powder evenly. The use of fine powder not only has a low yield during the molding process, but also has a low yield during the roasting and graphitization process, and the final consumption is large when used by the user.

Unreasonable use of dust removal powder. The dust collection powder is too fine and the impurity content is too much. In the production process of many large factories, especially in the case of ultra-high power and high power, the dust powder is used for other purposes; even if it is used on the ordinary uhp 400mm graphite electrode with low resistivity for arc furnace, it should be added evenly , Do not add, do not add, or directly discharge the dust collection powder into the powder, and the dust and dust collection dust will not mix uniformly. If the amount of dust collected is greater than 7%, the quality of the green body will be affected.

The rationality of the formula granularity. In recent years, domestic professional and technical personnel have done a lot of work on the composition of formula strength, and the concept of formula strength has been highly praised. However, it is still necessary to explore and summarize the industry as to how the formula is produced and what type of furnace the product is used in.