What is the main component of electrode paste

 The main components of electrode paste are solid carbon materials and binders. Solid carbon materials include electric calcined coal, petroleum coke, etc. the binder is generally asphalt

Comments

Post a Comment

Popular posts from this blog

Study on impurities in high purity flake graphite

Image
 　　For the analysis of trace impurities in high-purity flake graphite, the sample is usually pre ashed or wet digested to remove carbon, the ash is dissolved with acid, and then the impurity content in the solution is determined. The ashing method does not need to use ultra pure acid to dissolve the ash, thus avoiding the risk of introducing the elements to be measured, so it is used more. It is also very difficult to detect the ash content of high-purity flake graphite, because the enriched ash needs to be burned at high temperature, and it is difficult to separate the ash from the sample boat at high temperature, which makes it impossible to accurately determine the composition and content of impurities. 　　The existing methods all take advantage of the characteristic that the platinum crucible does not react with acid, use the platinum crucible to burn the high-purity flake graphite to enrich ash, and then directly heat the sample in the crucible with acid to dissolv...
Read more

The installation of cathode carbon block 1

Image
 　　The cathode carbon block and cathode steel bar are closely combined into one process. Cathode carbon block is an important part of aluminum reduction cell, which is directly used as cathode lining and conductive material. The cathode circuit of aluminum reduction cell is formed by connecting cathode steel bar and cathode bus. The assembly process of cathode carbon block and cathode steel bar should reduce the contact resistance between them as much as possible. 　　There are three ways to assemble cathode carbon block and cathode steel bar( 1) Cast iron casting method. The gap between them is cast with molten phosphorus pig iron, which is condensed to form a whole( 2) In the carbon paste tamping method, the gap on both sides of the steel rod is filled with cathode paste called steel rod paste, and tamped and compacted with pneumatic tools( 3) Bonding method. The cathode carbon block and steel bar are bonded together with carbon glue or adhesive. Graphite or metal pow...
Read more

General technical index requirements for electrode paste

Image
 Electrode occupies an important position in submerged arc furnace. The working conditions of the electrode are bad, the current passing through is high, the temperature difference between the two ends is large, and the production is affected by the impact of mechanical, electrical and charge collapse... Mechanical strength, higher electrical resistivity, better thermal shock resistance, oxidation resistance and smaller thermal expansion coefficient. Generally speaking, the quality of electrode paste is controlled by the following five indicators: 1. Ash: Ash is the residue of electrode paste when it is burnt to constant weight at 850℃-870℃. It belongs to inorganic minerals. It has high ash resistivity, poor strength, high power consumption, and large electrode consumption. In the event of a hard breaking accident, the ash content is a very important indicator, and the lower the better. 2. Volatile matter: Volatile matter refers to the mass loss of electrode paste under the conditi...
Read more