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400mm Graphite Electrode

 

400mm Graphite Electrode Manufacturer

 

 

ZhenAn International Co., Limited. is located in Anyang City, Henan Province, the hometown of Oracle. The company specializes in the research and development, production and sales, and international trade of 400mm graphite electrode. It is mainly used in metallurgical smelting industries such as steelmaking, silicon smelting, and yellow phosphorus smelting.

 

Why Choose Us

 

Rich Experience

It has nearly 30 years of experience in graphite electrode production and research and development and independent intellectual property rights. It is a domestic professional production and research and development enterprise with excellent quality, complete varieties and multiple specifications.

Our Team

ZhenAn has a professional team of 200 people, 90% of whom are professionals with many years of sales experience. They provide you with high-quality service experience and solve all your problems, so that you can buy without worries.

 

Production Capacity

It has advanced carbon testing and inspection facilities at home and abroad, and can produce and process Ф100-Ф600mm ordinary power, high power, and ultra-high power graphite electrodes with a production capacity of 150,000 tons/year.

Production Equipment

Closed conveyor, Impact crusher, Extrusion molding machine, Impregnation tank, Roasting furnace, Graphitization furnace.

 

 

 

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Types of 400mm Graphite Electrode
 

Hp 400mm Graphite Electrode
HP 400mm graphite electrode is mainly made of petroleum coke and needle coke. The allowable current is 21000-31000A, and the current density can be 16-24A/cm². Generally used for high-power electric arc furnace steelmaking.

 

Rp 400mm Graphite Electrode
RP 400 graphite electrode For LF furnaces, they use more needle coke than their counterparts. Diameter range 300-600mm, length can be customized.

 

Uhp 400mm Graphite Electrode
Uhp 400mm graphite electrodes are designed to withstand extreme conditions while providing high electrical conductivity and thermal resistance.

 

400mm Regular Graphite Electrode
The 400mm size is particularly significant in the industry as it allows for higher energy efficiency and reduces electrode consumption, which is a key consideration for steel producers around the world.

 

 

Specification

 

 

Physical and Chemical Properties

Unit

400mm Graphite Electrode

Electrical resistance

μΩ-m

≤7.5

Strength in transverse direction

MPA

≥12.0

Elastic modulus

GPA

≤14.0

Bulk density

g/cm3

≥1.60

Coefficient of thermal expansion (100-600。C)

10-6/。C

≤2.0

Ash content

%

≤0.5

 

 
 
Benefits of 400mm Graphite Electrodes
400mm Graphite Electrode for Fumaces

Enhanced Efficiency

The larger diameter of 400mm graphite electrodes allows for improved power input, creating more efficient melting processes.

300mm Ultra High Power Graphite Electrode

Lower Electrode Consumption

With the improved efficiency and power delivery capabilities, the overall consumption of 400mm graphite electrodes decreases.

400mm High Power Graphite Electrode

Superior Thermal Stability

400mm graphite electrodes exhibit excellent thermal stability, allowing them to maintain their performance under extreme temperatures.

Uhp 400mm Graphite Electrode

Consistent Quality

The manufacturing processes used for 400mm electrodes ensure a high degree of uniformity and quality.

 

Uses of 400mm graphite electrode

 

 
 

In iron and steel smelting industry

As a key component of the electric arc furnace, 400mm graphite electrodes can generate a powerful arc and convert electrical energy into heat energy.

 
 
 

In smelting non-ferrous metals

The electrolytic production process of aluminum, copper and other metals, the 400mm graphite electrode as an anode can withstand the strong current and high temperature in the electrolytic process.

 
 
 

In the field of chemical industry

In some high-temperature electrochemical synthesis reactions, you can use 400mm graphite electrode as electrode materials to participate in chemical reactions. They promote the reaction and create the necessary conditions for the production of chemical products.

 

 

The Manufacturing Process of 400mm Graphite Electrode

 

 

Step 1: Extrusion Process
The needle cokes are finely crushed and selectively sieved to ensure that only the desired particle sizes are retained. These particles are then combined with pitch in precise proportions to form a paste-like mixture. The resulting mixture is then extruded and molded into cylindrical shapes using molds of specific dimensions.

 

STEP 2: Baking Process
To carbonize the pitch, it is subjected to heat treatments of approximately 1000°C. If baking process is carried out in a short time, cracks and pores could occur due to volatile substances included in the pitch or shrinkage.

 

STEP 3: Pitch Impregnation Process
During the baking and re-baking processes, volatile substances included in the pitch evaporate, creating pores. The pores are filled again with pitch, to increase its density. The pitch impregnation process is repeated multiple times for the electrode joints (PIN) to ensure optimal density and strength.

 

STEP 4: Rebaking Process
To carbonize the impregnated pitch, a secondary heat treatment is conducted at temperatures below 800°C. The rebaking process takes approximately one week.

 

STEP 5: Graphitization Process
Rebaked electrodes undergo a heat treatment process known as graphitization, where electric Joule heating is employed to raise the temperature to approximately 3000°C.

 

Step 6: Machining Process
Both electrode body and the joint are machined using special machine to achieve precision levels as fine as 1/1000mm, depending on the part.

 

Step 7: Inspection Process
After undergoing product property measurements and conducting visual inspections, the product is shipped out as the finished product.

 

400mm Graphite Electrode Usage Requirements
Uhp 400mm Graphite Electrode
Hp 400mm Graphite Electrode
400mm Graphite Electrode for Fumaces
400mm Graphite Electrode for Steel Making

When the graphite electrodes are selected for electric steel furnace, reference is made to the current carrying capacity of the electrodes.

 

Before the electrodes are connected to the nipples, it is necessary to blow the electrode threads thoroughly clean with compressed air and screw the nipples tightly then into the electrodes.

 

When the elevator of the electric arc furnace is hoisting the electrodes, no swing is allowed so as to avoid the electrode joints being loosened and dislocated. The tightening devices of the electrodes must not hold the electrode near the area of nipple sockets.

 

In order to prevent the breakage of the electrodes in case of scrap cave-ins, lift the electrodes in time according to the melting condition and dump the unmelted waste steel into the pool.

 

Charging the furnace, put the large scrap steel lumps at the bottom and the small ones at the top. In order to prevent dislocation after the electrodes being jointed, we provide binding paste and pins which is easily to be applied.

 

The transport and storage of the graphite electrodes must be kept away from being moistened or wetted by rain, snow and water. Be sure to dry them up before use .

 

Product Transportation Packaging

Protective End Caps

All ends of graphite electrodes come with fitted protective plastic or rubber caps to keep threaded parts safe.

Wooden Crates or Pallets

Graphite electrodes are mostly packed in heavy-duty pallets or sturdy wooden crates. These pallets or crates are made to take in electrode weight and length, which can vary based on size.

Foam and Cushioning

Materials for cushioning like soft padding or foam, are placed all around graphite electrodes to take in the vibrations and shocks movement or transportation brings.

 

Other Services

 

Delivery Time: Usually our manufacture time is 7-10 days. And meanwhile it takes 7-30 days to apply the Import and export license for dual-useitems and technologies, so the delivery time is 7 to 30 days after payment.

 

MOQ: There is no limit for MOQ, 1 ton is also available.

 

OEM/ODM: We can accept OEM/ODM. We can design products and packaging patterns according to your requirements.

 

Payment Terms: We accept T/T, Paypal, Western Union. Normally, we accept 30% deposit and the balance before shipment.

 

Transportation: Usually we use express as DHL, FEDEX, UPS, TNT, air and sea transportation is supported. We always choose economist way for you.

 

Our certificates: The company has passed the GB/T 19001-2015/ISO 9001:2015 quality management system certification, and the product quality is uniform and stable.

 

Sales Market: The company's products are sold well in major steel companies at home and abroad, and are mainly exported to Iran, Myanmar, Vietnam, Germany, the United Kingdom and other countries and regions.

 

 

FAQ

 

Q: Do you have after-sale service?

A: Yes. Our after-sales staff will always stand by you, if you have any questions about the products, please e-mail to us, we will try our best to solve your problem.

Q: How do you control your quality?

A: During the production process, we have a complete chemical composition quality control system. After production, all goods will be tested, and a quality certificate will be issued with the goods.

Q: What can you buy from us?

A: Graphite Electrode,Fine Grain And Wax Treated Graphite Rod,Molded Graphite Block,C/C Composite Materia,Graphite Box.

Q: How can I get a sample to confirm the quality?

A: Please give me the exact specification details so we can send you a sample. You can also send us a sample, we can give you a counter sample and price. Samples are free.

Q: What if I can't find what I'm looking for on your website?

A: Please feel free to contact us by various means and send details of the products you are looking for. We will do our best to help you.

Q: When can I get the price?

A: We usually quote within 1 hours after getting your detailed requirements,like size,quantity etc. If it is an urgent order, you can call us directly.

Q: Can we visit your factory?

A: Yes, of course. You are very welcome to China and we will be honored to have a client and friend.

Q: Can we use our own shipping agent?

A: Yes, you can. We had cooperated with many forwarders. If you need, we can recommend some forwarders for you to compare the price and services.

Q: What is the difference between copper and graphite electrodes?

A: Copper electrode is suitable for roughing process, whilst graphite electrode is suitable for finishing process. Combination of both electrodes will improve machining characteristics and surface finish.

Q: What is the raw material of graphite electrode?

A: Graphite electrodes are mainly made of petroleum coke, needle coke and coal pitch through calcining, batching, kneading, forming, baking, graphitizing and machining. Graphite electrode is a conductor which releases electric energy in the form of arc in the furnace to heat and melt the charge.

We're professional 400mm graphite electrode manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale cheap 400mm graphite electrode from our factory. For price consultation, contact us.