PRODUCTION TECHNOLOGY OF GRAPHITE ELECTRODE

1. Ingredients. High quality calcined needle coke is used as raw material for production.
2. Crush the ingredients.
The needle coke is broken in the mechanical equipment and subdivided in proportion to the formula requirements.
3. Mix.
Precise computer batching system, batching raw materials and a certain proportion of asphalt mixed after heating and kneading, to make a plastic paste.
4. Press.
From precise computer mixing system to 4000 Li-litre kneading pan stability, to 3500 tons of special electrode extruder, Hebei Ruixiang Carbon Company implements effective monitoring of key pressing points to ensure the inherent quality of products.
Step 5 Roast
It is the process of carbonizing asphalt by heating according to a certain temperature curve under the condition of isolating air.
Step 6 Dip
The impregnation process is in a closed dipping tank, after vacuuming, injected bitumen pressure, so that the product internal pores are filled, to improve the density and mechanical strength of the product.
7. Second roasting
The process of calcination after dipping is called secondary calcination. The main purpose of calcination is to carbonize the impregnated asphalt and improve the volume density and strength of the product.

8. Graphitization
Through the advanced graphitization transmission system, ensure that according to the set transmission curve, can meet the graphitization of various specifications of roasted products
9. Mechanical processing
Hebei Ruixiang carbon in accordance with international standards or specific requirements of customers, electrode diameter, length, thread processing, processing precision is very important for the smooth and safe use of electrodes, the use of imported ring gauge testing, product processing precision and matching tolerance has reached the industry's advanced level, can better meet the requirements of different customers different electric furnace use. At the same time in the production process of Nantong Yangtze carbon actively promote energy conservation and emission reduction. Anti-pollution efficiency and production safety, Ruixiang company at all costs to introduce environmental protection equipment, to ensure full compliance with international standards.