石墨电极350

Performance characteristics of ultra-high power graphite electrode in 350 arc furnace

Our products are characterized by high strength, good electrical conductivity, good thermal shock resistance and low consumption, and are widely used in metallurgical, chemical and mechanical industries. 50 % of the products are sold well in 30 provinces, cities and autonomous regions in China, and 50 % are exported to more than 30 countries and regions including Southeast Asia, Japan and South Korea, Europe, the Americas, and Africa.

Technical parameters of ultra-high power graphite electrode in 350 arc furnace

Specification for the Use of Ultra-High Power Graphite Electrodes in 350 Electric Arc Furnace

Points to note for the use of graphite electrodes:

1, wet graphite electrode, dry before use.

2, remove the foam protective cap on the spare graphite electrode hole, check whether the inner thread of the electrode hole is complete.

3, clean up spare graphite electrode surface and hole thread with compressed air without oil and water; Avoid cleaning sand cloth with steel or metal brushes.

4, carefully rotating the connector into the electrode hole at one end of the backup graphite electrode(it is not recommended to load the connector directly into the electrode removed from the furnace), not to collide threads.

5, the electrode hanging equipment(recommended graphite hanging equipment) into the electrode hole at the other end of the backup electrode.

6, when lifting the electrode, loosen the soft material to the bottom of the end of the standby electrode connector to prevent the ground from hitting the connector; Lift the pendant ring with a hook, and the lifting electrode must be stable to prevent the electrode from loosening from the B end or colliding with other fixing devices.

7, hanging the spare electrode to the top of the electrode to be connected, pointing at the electrode hole and slowly falling; Rotate the backup electrode so that the spiral hook rotates with the electrode to drop; When the two electric extremes are 10-20mm apart, the exposed parts of the two ends and joints of the electrode are cleaned again with compressed air; When the electrode is finally completely decentralized, it must not be too violent. Otherwise, due to violent collisions, the electrode holes and joints will be damaged.

Unscrew the backup electrode with a torque wrench until the end surfaces of the two electrodes are in close contact(the correct connection between the electrode and the joint is less than 0.05 mm)

SPECIFICATION

Table 1: Technical Specification of UHP Graphite Electrode

	Resistance	Density	FlexureStrength	ElasticModulus	AshContent	CTE	CurrentLoad	CurrentDensity
(inch)	(≤,µΩ·m)	(≥,g/cm3)	(≥,MPa)	(≤,GPa)	(≤,%)	(100°C–600°C)	(A)	(A/cm2)
						(≤,10-6/°C)
10				14			8100–12200	20–30
12				14			15000–22000	20–30
14				14			20000–30000	20–30
16				14			25000–40000	19–30
18				14			32000–45000	19–27
20			11	14			38000–55000	18–27
22			11	14			42000–66000	17–26
24			11	14			49000–76000	17–26

Table 2: Graphite Electrode Size & Tolerance

Diameter(mm)					Length(mm)
NominalDiameter		ActualDiameter			NominalLength	Tolerance	ShortLength
(inch)	(mm)	(max.)	(min.)	(roughspot)
10	250	256	251	248	1600/1800	±100	-275
12	300	307	302	299	1600/1800
14	350	357	352	349	1600/1800
16	400	409	403	400	1600/1800/2000/2200
18	450	460	454	451	1600/1800/2000/2200
20	500	511	505	502	1800/2000/2200/2400
22	550	562	556	553	1800/2000/2200/2400
24	600	613	607	604	2000/2200/2400/2700

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