HP Graphite Electrodes

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Graphite Electrodes

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sales@fqcarbon.com

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Product introduction

Description
Our company's high-power graphite electrodes are produced with imported ConocoPhillips needle coke, with a needle coke content of 40%, and the rest are mixed with Fushun coke in Northeast China. The electrode body needs to be impregnated twice, and its physical and mechanical properties are higher than ordinary power graphite electrodes, such as low resistivity, and the conventional products with a diameter of less than 500mm allow a current load of 18000A-35000A.
Feature
The company's unique anti-oxidation technology research and development reduces the oxidation process of products
Vacuum impregnation to increase product density to a greater extent
High processing precision and good surface finish.
High mechanical strength and low electrical resistance.
Reduces common problems of cracking and peeling.
Technical Specification of HP Graphite Electrodes

HP TECHNICAL PARAMETERS
(mm)Nominal Diameter						(mm)Nominal Diameter
Item		Unit	YB/T4090( Industry Standard)			HP (Measured Value)
			200\400	450\500	600\700	200\400	450\500	600\700
Electric Resistivity	Electrode	μQM	≤7.0	≤7.5	≤7.5	5.6-6.5	5.8-6.7	5.8-6.8
	Nipple		≤6.3	≤6.3	≤6.3	3.5-4.3	3.5-4.2	3.5-4.2
Bulk Density	Electrode	g/cm³	≥1.60	≥1.60	≥1.60	1.73-1.75	1.72-1.74	1.70-1.72
	Nipple		≥1.72	≥1.72	≥1.72	1.80-1.82	1.82-1.84	1.82-1.85
Flexural Strength	Electrode	MPa	≥10.5	≥10	≥8.5	12.0-15.0	11.0-15.0	10.0-12.0
	Nipple		≥17.0	≥17.0	≥17.0	22.0-26.0	22.0-26.0	24.0-28.0
CTE	Electrode	10℃	≤2.4	≤2.4	≤2.4	1.7-2.0	1.6-2.0	1.6-2.0
	Nipple		≤2.2	≤2.2	≤2.2	1.4-1.8	1.4-1.8	1.4-1.8
Elastic Modulus	Electrode	GPa	≤14.0	≤14.0	≤14.0	9.0-12.0	9.0-11.5	9.0-11.5
	Nipple		≤16.0	≤16.0	≤16.0	14.0-16.0	15.0-18.0	15.0-18.0
Ash	Electrode	%	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5
	Nipple

Nominal Diameter		Cross Sectional Area	YB/T4090(IndustryStandard)		HP(EnterpriseStandard)
			ermissibleCurrent Load	Current Density	Permissible Current Load	CurrentDensity


in	mm	cm²	A	A/cm²	A	A/cm²
14	350	937	17400-24000	17-27	18270-25200	19-26
16	400	1275	21000-31000	16-24	22050-32550	17-26
18	450	1622	25000-40000	15-24	26250-42000	16-26
20	500	2000	30000-48000	15-24	31500-50400	16-25
22	550	2427	34000-53000	14-22	—	—
24	600	2892	38000-58000	13-21	—	—
28	700	3935	45000-72000	12-19	—	—

GUIDANCE TO ANALYSIS OF ELECTRODES PROBLEMS
Factors	Body Breakage	Nipple Breakage	Loosening	Tip Spalling	Bolt loss	Oxidation	Consumption
Nonconductor In Charge	◆	◆
Heavy Scrap In Charge	◆	◆
Transformer Capacity Too Large	◆	◆		◆	◆	◆	◆
Phase Lmbalance	◆	◆		◆	◆		◆
Phase Rotation	◆	◆	◆
Excessive Vibration	◆	◆	◆
Clamper Pressure Too High Or Too Low	◆	◆	◆
Roof Electeode Socket Disalignment With Electrode	◆	◆	◆
Water Sprayed On Eledctrodes Above Roof							△
Scrap Preheating							△
Secondary Voltage Too High	◆	◆		◆	◆		◆
Secondary Current Too High	◆	◆		◆	◆	◆	◆
Power Factor Too Low				◆	◆		◆
Oil Consumption Too High				◆	◆	◆	◆
Oxygen Consumption Too High				◆	◆	◆	◆
Long Time Gap From Tapping To Tapping						◆	◆
Electrode Dipping					◆		◆
Dirty Joint		◆	◆
Poorly Maintained Lift Plug And Tightening Tool		◆	◆			◆
Lnsufficient Joint Tightening		◆	◆			◆
Note:△Lndicates Increased Performance.◆ Lndicates Decreased Performance.

The company's main products Ordinary Power Graphite Electrode(75mm-1200mm),High Power Graphite Electrode(200mm-700mm), Ultra High-power Graphite Electrode (300mm-700mm), Calcined Petroleum Coke, Graphitized Petroleum Coke, Recarburizer, Graphite Products, Refrigeration Fitting, Steel Parts and other products.

We pay attention to the development of products diversification on the basis of production assurance. We insist on continuous innovation and development from the perspective of customer needs. It has developed into a comprehensive enterprise that can provide different types of products and services needed in many fields. With the continuous progress of technology, our company speeds up technological innovation, strengthens scientific management. To build the enterprise into an international brand with excellent product quality and perfect after-sales service.

Factory

Calcined

Profiling

Roasting

Graphitization

Processing

Package

Under the company's cooperative enterprises have reached more than 30 and more than 200 employees. Annual comprehensive production capacity of 30,000 tons, products sold in more than 20 provinces and regions, exported to Southeast Asia, Middle East, Europe, the United States and other countries. Since the establishment of the enterprise, we pay attention to the development of products diversification on the basis of production assurance. We insist on continuous innovation and development from the perspective of customer needs. It has developed into a comprehensive enterprise that can provide different types of products and services needed in many fields.

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