How to reduce the high temperature loss of graphite electrode?

Electric furnace (EAF) steelmaking is a major user of graphite electrodes. In China, the EAF steel output accounts for about 18% of crude steel total output , and graphite electrode used for steelmaking accounts for 70% ~ 80% of graphite electrode total consumption.

The demand for graphite electrode is large. Graphite electrode begins to oxidize at about 600 ℃ in the air, while the steel-making furnace's atmosphere temperature is above 1500 ℃, and the oxidation speed is very fast. Data show that the oxidation of the electrode side column without anti-oxidation measures accounts for more than 60% of the electrode consumption during steel-making, and oxidation is the main reason for the increase in electrode consumption. So how to prevent graphite oxidation?

Brush RLHY-306 graphite electrode anti-oxidation coating. The coating adopts inorganic nano technology to form a dense anti-oxidation coating through material polymerization, high-temperature sintering, crushing and grinding of high-temperature resistant ceramic coating. Graphite electrode anti-oxidation protective agent uses nano composite adhesive as film-forming agent, and adds various nano functional fillers to form a dense anti-oxidation coating.

RLHY-306 graphite electrode anti-oxidation coating can play a good sealing role. In the high-temperature section, it can isolate oxygen and graphite, prevent the reaction between graphite and oxygen at high temperature, reduce the consumption of graphite electrode by more than 30%, resist the corrosion and penetration of molten slag, reduce the inclusions in steel, and purify molten steel, aluminum and copper.

Graphite electrode antioxidant coating protective agent applicable scope: suitable for graphite products such as graphite electrode, anode carbon block, electrolytic aluminum factory, graphite mold, graphite crucible, graphite bearing and other graphite products surface seal anti-oxidation, seal anti-corrosion, to increase material strength.

Graphite electrode anti-oxidation coating construction scheme

1. Substrate treatment

Remove the dust, foreign matters and other adherents on the surface of graphite electrode and graphite parts to ensure that the substrate surface is dry and clean.

2. Coating mixing

During the storage and transportation of the coating, precipitation is inevitable. During use, the coating shall be evenly stirred, filtered with a 40 mesh filter, and then poured into another container. Continuous slow stirring is required to ensure that the coating is always in suspension.

3. Environmental conditions

The ambient temperature during coating operation shall not be lower than 10℃, the surface temperature shall be at least 3℃ higher than the dew point, and the air relative humidity shall not exceed 85%.

4. Coating

Brushing, spraying and spraying; It is recommended to brush for 2-3 times. During brushing, the substrate surface shall be as wet as possible to make the coating penetrate into the gap of graphite parts as much as possible. Contact us for more graphite electrode application guide.