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 quality index of electrode paste, only the compressive strength quality index of electrode paste. The mechanical strength itself includes the compressive strength and has certain relevance. As a national standard, it may not be able to put all things into the quality standard
The mechanical strength of the electrode paste includes compressive strength, flexural strength and tensile strength. The mechanical strength of carbon products is anisotropic, that is, the composition of raw material particles of carbon products is different in the horizontal and vertical directions. Due to the production method of the electrode paste, we will not discuss the anisotropy of the mechanical strength of the electrode paste here. The raw material composition of electrode paste, i.e. different raw materials, particle size and proportion of raw materials, thickness and proportion of powder, and content of coal tar pitch have an impact on the mechanical strength of electrode paste, which will be discussed separately. In this paper, the influence of the temperature change of the electrode paste on the mechanical strength is discussed.