What is the manufacturing process for graphite electrodes, and how is their quality controlled?
The manufacturing process for graphite electrodes typically involves the following steps:
Raw material preparation: Select high-quality graphite powder or graphite blocks as the raw materials for manufacturing electrodes.
Mixing and forming: Mix the graphite powder with other additives and then form it into the desired electrode shape using a forming process.
Baking: Bake the formed electrode blanks at a specific temperature to remove moisture and improve strength.
Impregnation: The baked electrodes may undergo impregnation treatment to increase their density and electrical conductivity.
Graphitization: Subject the impregnated electrodes to graphitization treatment at high temperatures to transform their structure into graphite, improving electrical conductivity and thermal stability.
Machining and finishing: Perform mechanical machining operations such as cutting and grinding on the graphitized electrodes to achieve the final size and shape requirements.
Product Parameters of Graphite Electrode
RP | HP | UHP |
Electrode: Bulk Density≥ 1.56g/cm3 Specific Resistivity≤ 8.5μm Bending Strength≥ 10.0MPa Elastic Modulus≤ 9.3GPa Thermal Expansion Coefficient≤ 2.7x10 -6/°C Ash≤ 0.5% Nipple: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 7.0μm Bending Strength≥ 14.0MPa Elastic Modulus≤ 13.7GPa Thermal Expansion Coefficient≤ 2.5 x10 -6/°C Ash≤ 0.5% | Electrode: Bulk Density≥ 1.65g/cm3 Specific Resistivity≤ 6.5μm Bending Strength≥ 12.0MPa Elastic Modulus≤ 10.0GPa Thermal Expansion Coefficient≤ 2.2x10 -6/°C Ash≤ 0.3% Nipple: Bulk Density≥ 1.74g/cm3 Specific Resistivity≤ 5.5μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 2.0 x10 -6/°C Ash≤ 0.3% | Electrode: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 5.8μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 1.9x10 -6/°C Ash≤ 0.2% Nipple: Bulk Density≥ 1.76g/cm3 Specific Resistivity≤ 4.5μm Bending Strength≥ 18.0MPa Elastic Modulus≤ 16.0GPa Thermal Expansion Coefficient≤ 1.4 x10 -6/°C Ash≤ 0.2% |
Packing & Delivery
REMARK: the above data is just on standard of YB/T, the actual product is big different from the above. For the actual, be free to contact us, please.
Service: We can supply you with free samples, a booklet, a laboratory test report, an Industry Report, etc.
Welcome to our factory and company for a visit!
Company profile
ZHENAN has been in the business of ferroalloy for 3 years now. It is a leading manufacturer and supplier of ferro silicon,silicon manganese,silicon metal,silicon carbide,high carbon silicon and so on.our company is a large-sized production enterprise integrating research, development, production and sales.
Our company locates in Anyang city,Henan province of China a total area of about 15,000 square.With many years growing and developing,our company has domestic advanced smelting furnaces,crushing and screening production lines with annual output of 20000 tons.At the some time has two laboratories and a metallurgical materials testing center with dozens of senior researchers.The products are supplied to many large and medium-sized iron and steel enterprises in China, and exported to Japan, Korea, India, Europe and the United States.
RFQ
Q: Are you a manufacture or trader?
A: We are truly a manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.
Q : What standards do you have?
A : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc.The third party testing is all available for us.
Q : What is your lead time?
A : It usually needs about 15- 20 days after receiving the PO.