The prospect reform of electrode paste
The renewal and replacement of concepts
A、 People's evaluation of electrode paste indicators should first focus on ash content, and should be updated to focus on specific resistance first. Because the purpose of electrode paste is to make conductive materials, the indicators of conductive materials should first focus on specific resistance. Although there is a certain correlation between ash content and specific resistance, it is not always a positive correlation. The relationship between ash content and specific resistance is influenced by various factors, such as material itself, ash composition, processing temperature, material ratio, and product density. The same material (same ash content) also has different specific resistance at different temperatures.
B、 The softening point of coal tar pitch should not be fixed at around 80, but should be appropriately elevated to around 90. Some electrode paste production enterprises specially prepare coal tar to reduce the softening point of coal tar pitch. The electrode paste produced by adding coal tar is not only difficult to use, but sometimes can also cause major quality accidents. Practice has proven that increasing the softening point of coal tar pitch appropriately is beneficial for improving the quality of electrode paste. Foreign carbon companies produce electrode paste for use with modified asphalt, with a softening point of around 105.
The raw materials need to be "updated and replaced"
The raw materials used in the production of electrode paste are basically ordinary calcined anthracite, metallurgical coke powder, and medium temperature coal tar pitch; It should be updated to use electric calcined anthracite, calcined petroleum coke, and modified coal tar pitch. The specific resistance of ordinary calcined anthracite is 70% higher than that of electric calcined anthracite; The specific resistance of metallurgical coke powder is 2.5 times that of calcined petroleum coke, and the toluene insoluble and coking values of modified coal tar pitch are higher than those of medium temperature coal tar pitch. After the update of raw materials, the quality of electrode paste has taken a step up.
Although the upgrading of raw materials will increase the cost of electrode paste and increase its price, it will inevitably reduce the production costs of electrode paste manufacturers, improve the stability and product quality of their production. The total cost of using the manufacturer will not increase or will not increase significantly.
Equipment needs to be "updated and replaced"
Equipment is the hardware produced by enterprises. In today's world of advocating technological progress, if the hardware is not hard, it means that competitiveness is not strong. Although some companies have also updated some equipment, the overall equipment is still inadequate and must be fully equipped with crushing, screening, grinding, ingredients, kneading, and molding. Especially for paste forming machines, they are essential. The paste forming machine can not only produce large pieces of paste into small pieces, but also increase the plasticity of electrode paste, solving the problem of holes that are easily formed when large pieces of paste are melted in the furnace during use. Improved the effectiveness of electrode paste usage.
