Anti-oxidation Treatment Process Of Graphite Electrode

(1) Preparation and weighing: Weigh the graphite electrode to provide qualified materials to be processed;

(2) Preparation and heating of the immersion liquid: The ingredients of the immersion liquid include industrial boric acid (h↓[3]bo↓[3]) 18-27%, industrial borax (na↓[2]b↓[4]o↓[ 7]) 7-15%, after mixing, adjust it into liquid with water, and heat it after preparation;

(3) Immersion treatment: Put the prepared graphite electrode into a vacuum tank and seal it, vacuum with a vacuum pump, and inject the heated immersion liquid into the vacuum tank for immersion. During the immersion process, the concentration of the immersion liquid decreases. Supplement as appropriate;

(4) Second weighing: After the immersion electrode treatment, open the vacuum tank, take out the graphite electrode after immersion, and drain the leaching solution. The weight of the electrode after immersion is more than 10%;

(5) Drying treatment: the graphite electrode after immersion is dried so that the moisture content of the electrode is not more than 0.5%;

(6) Three times of weighing: After drying, weigh the graphite electrode again so that the weight increase is more than 3% of the weight before immersion;

(7) Finished product processing: The graphite electrode processed above can be processed into a standard shape as required. The above-mentioned processed graphite electrode can be processed into a standard shape as required.