Graphite electrode-Wanji Holding Group

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Graphite electrode

Wanji Holding Group Co., Ltd. is among the Top 500 Enterprises of China, with its total assets being 30 billion yuan. Wanji Holding Group Graphite Product Co., Ltd.is Wanji Holding Group’s wholly-owned subsidiary which was established in 2004, with graphitized cathodes for aluminum electrolysis being its main product. It has a total investment of 1.1 billion yuan and has introduced key technical equipment from Germany’s KHD, etc. The company has an annual output of 50,000 tons. It has established cooperation with over 30 electrolytic aluminum companies both home and abroad, such as Weiqiao, Xinfa, Chinalco, Alcoa and Rio Tinto. Our products are sold to as many as 20+ countries and regions. The “Wanji” brand enjoys a good reputation overseas and is praised by industry insiders.

keyword：

Graphite electrode

Category：

For non aluminum electrolysis purposes

TEL：

+86 379-67328777

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Product description

Introduction to round graphite electrode

1. Adopts imported Germany vibration compactor, featuring: 1) Vacuum-pumping; 2) Low porosity; 3) Homogeneous; 4) High volume density.

2. Adopts cyclictype baking furnace with cover, featuring: 1) Good heat insulation effect, so that the products are heated evenly; 2) Stable internal structure; 3) High coking value.

3. Adopts lengthwise graphitization furnace, featuring: 1) High conductivity efficiency; 2) Even degree of graphitization; 3) Stable product quality.

4. Adopts CNC combined processing machines: 1) High machining precision; 2) Good product appearance; 3) The advantages of graphite electrodes are easy processing, high removal rate for electrical discharge machining, and low graphite loss. 4) Graphite electrodes can be easily machined and its machining process can be way faster than that of copper electrodes. For example, when adopting milling process to machine graphite, its speed will be 2-3 times faster than other metals, with no extra manual treatment required. But copper electrodes will need manual grinding.

Physicochemical indexes for round electrodes

Indexes	Unit	Typical value	Standard deviation	Max. value	Min. value
Volume density	g/cm³	1.62	0.015	1.68	1.62
True density	g/cm³	2.2	0.015	2.23	2.19
Resistivity	µW·m	10	1	14	10
Ash content	%	0.5	0.2	0.8
Resistivity	MPa	20	2	28	18
Flexural strength	MPa	6	1	12	6
Porosity	%	25	1	27	24
Coefficient of thermal expansion (20-900) ℃	K-1×10-6	3.5	0.2	4	3
Electrolytic expansion rate	%	0.4