The mechanical strength of electrode paste includes compressive strength, flexural strength and tensile strength.
The electrode paste height refers to the height from the top of the electrode clip to the top of the electrode paste. If the electrode paste is too high, the thick and fine particles in the electrode paste are prone to stratification, or the electrode cylinder will be swollen due to the pressure of the paste column is too high. If the electrode paste column is too low, the pressure of the paste column is too small and the filling is poor, and it is difficult to obtain Dense electrodes. The electrode paste is consumed too quickly. The proper height of the electrode paste column is beneficial to improve the quality of electrode firing and reduce consumption.
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 the 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 electrode paste’s mechanical strength here.
The composition of the raw materials of the electrode paste, that is, different raw materials, the particle size and proportion of the raw materials, the thickness and proportion of the powder, and the content of coal pitch all have an impact on the mechanical strength of the electrode paste. We will discuss it separately.