Hebei Cabot Carbon Import And Export Co., Ltd

UHP 400mm*1800mm UHP 450mm*1800mm Used in steel, cement and glass manufacturing, expanded graphite - based sealing gaskets, graphite grease, braid, brushes, brake lining, etc.

The graphite electrode comprises: (1) Regular power graphite electrode( RP grade Graphite Electrode) . Graphite electrode with current density less than 17a / cm2 is allowed to be used in common power electric furnaces for steelmaking, silicon smelting and yellow phosphorus smelting. (2) Oxidation resistant coating graphite electrode. A graphite electrode coated with an anti-oxidation protective layer (graphite electrode anti oxidant). The formation of both conductive and high temperature oxidation resistant protective layer can reduce the electrode consumption (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode. The popularization and application of this technology can bring such economic and social effects as follows: 1. The unit consumption of graphite electrode is less, and the production cost is reduced to a certain extent. For example, according to the consumption of 35 graphite electrodes per week and 165 refining heats of LF refining furnace in a steel-making plant without shutdown in the whole year, 373 (153 tons) electrodes can be saved every year by using graphite electrode oxidation resistance technology, and RMB 2585700 can be saved by RMB 16900 per ton of ultra-high power electrode per year. 2 The graphite electrode consumes less electricity, saves the unit electricity consumption of steelmaking, saves the production cost, saves energy! 3. Because the graphite electrode is replaced less times, the labor amount and risk coefficient of operators are reduced, and the production efficiency is improved. 4 Graphite electrode is a high consumption and high pollution product, which has a very important social significance in the days of promoting energy conservation, emission reduction and environmental protection. This technology is still in the stage of research and development in China, and some domestic manufacturers have begun to produce it. It is widely used in Japan and other developed countries. At present, there are also companies that import the anti-oxidation protective coating in China. (3) High power graphite electrode (HP grade Graphite Electrode). Graphite electrode with current density of 18-25a / cm2 is allowed to be used in high power electric arc furnace for steelmaking. (4) Ultra high power graphite electrode( UHP grade Graphite Electrode). Graphite electrode with current density greater than 25A / cm2 is allowed. It is mainly used in ultra high power EAF.

Artificial graphite electrode is made of high-quality low ash materials, such as petroleum coke, needle coke and coal pitch.after calcining,burdening,kneading,forming,baking and pressure impregnation, graphitization and then precision machined with professional CNC machining.such of the products own characteristics with low resistivity, good electrical conductivity ,low ash, compact structure,good anti oxidation and high mechanical strength, so it is the best conductive material for electric arc furnace and smelting furnace.

UHP HP RP graphite electrode Φ400-700mm,length 1800mm 2100mm 2400mm 2700mm

The graphite electrode is mainly made of petroleum coke and needle coke, and the coal bitumen is used as a binder. Graphite Electrodes has good electrical properties and chemical resistance, which has high mechanical strength at high temperature and good seismic performance.

China uhp hp rp graphite electrode for steel industry The graphite electrode is mainly made of petroleum coke and needle coke, and the coal bitumen is used as a binder. It is made by calcination, compounding, kneading, forming, baking, graphitization and machining. According to its quality indicators, graphite electrodes can be divided into RP graphite electrodes, HP graphite electrodes and UHP graphite electrodes. Our factory produce: 1. RP graphite electrode 2. HP graphite electrode 3. UHP graphite electrode Needle coke material , Low ash , low consumption!

HP Size and Tolerance Diameter (mm) Length (mm) Nominal diameter Actual diameter Nominal length Tolerance Short feet length mm inch max min mm mm max min 200 8 209 203 1600/1800/ 2000/2200/ 2400/2700 ±100 -100 -275 250 10 258 252 300 12 307 302 350 14 357 352 400 16 409 403 450 18 460 454 500 20 511 505 550 22 556 553 600 24 613 607 Physical and Chemical Index of HP Items unit Diameter: 250-600mm Standard Test data Electrode Nipple Electrode Nipple Electrical resistance μΩm 6.5-7.5 6.0 6.0-7.0 5.5 Flexure strength Mpa 9.8-10.5 14 12-15 15-18 Modulus of elasticity GPa 12 16 12 14 Ash content % 0.2 0.2 0.2 0.2 Apparent density g/cm3 1.6 1.7 1.68-1.73 1.75 Factor of expansion(100-600) x10-6/ 2.4 2.2 2.2 2.0 Operating instruction 1. Use special hoist tools to hoist graphite electrode. It is strictly forbad to prize electrode ends up with crowbar. It must be handled with great care during transport to avoid being struck. 2. Graphite electrode must be kept away from being moistened or wetted by rain, snow and water, and must be kept dry. 3. Carefully checking before making connection, make sure that socket and nipple thread is not damaged, nipple pitch plug is in. 4. Blow the nipple and socket threads with compressed air. 5. It must be dried in the furnace before use, the drying temperature in the furnace should be less than 150,the drying period should be more 30 hours 6. Graphite electrode must be connected and contacted closely and straightly.Use moment spanner for connecting electrode with suitable force. Mustnt decline. 7. The holding device must hold the electrode tightly, good contact and no arc. 8. To avoid the electrode breakage, put the large materials in lower part and small materials in the upper part. Insulating materials should not be put into the furnace. The working current of electrode must be conformity with the allowable current of electrode in the instructions.