What is graphite block? graphite block uses, price, sale and suppliers
By:Win Sep 14, 2021
Graphite block is solid shape of graphite, graphite powder isostatic pressing made of artificial graphite or graphitized graphite electrode, and then machined into a variety of graphite molds.
What is graphite block?
Graphite block is a solid shape of graphite, the general material is more artificial graphite, graphite mold, etc.. There are also small graphite blocks made of flake graphite, such as carbon brushes. Graphite is mostly powder, such as earthy graphite powder, scale graphite and so on are powder.
Graphite block uses
Graphite block is used for silicon carbide furnace, graphitization furnace and other metallurgical furnace, resistance furnace as furnace lining and conductive material, but also for impermeable graphite heat exchanger. Graphite blocks are widely used in electronics, metallurgy, chemical, steel and other fields. Graphite block products have excellent quality and stable performance.
Graphite blocks for sale
The global graphite market can be divided into natural graphite and synthetic graphite. According to the application can be subdivided into lubrication, fire resistance, casting, battery production, etc. The global graphite block market mainly consists of North America, Europe, Asia Pacific, Middle East and Africa, and South America.
Graphite blocks suppliers
American Carbon Company
Alabama Graphite Block
Northern Graphite Block
Qingdao RUISHENG Graphite Co. Ltd.
How are graphite blocks made?
There are many production methods of graphite blocks, among which the more common methods are extrusion, molding and isostatic pressing.
The production process of graphite block is probably as follows: coke - crushing and grinding - mixing and kneading - crushing and screening - pressing - roasting and impregnation - graphitization - machining - testing - finished product. The above procedures choose different schemes according to different production modes.
Graphite block price
The price of graphite blocks is related to carbon content and use environment, the cheapest $500 / ton, the more expensive $3000 / ton, if it is imported $20,000 / ton, the difference is relatively large.
Pyrolytic graphite block
Pyrolytic graphite block high purity graphite block parts, put into the furnace, add nitrogen and methane under vacuum high temperature, and then produce a coating in the graphite block. This graphite part is called pyrolytic graphite. Pyrolytic graphite blocks have stronger oxidation resistance than ordinary graphite blocks.
Graphite block heat exchanger
Graphite heat exchanger is widely used in cold rolling pickling line, chemical industry, petroleum industry, pesticide industry and so on. This paper mainly introduces the application of graphite heat exchanger in pickling line.
In cold rolled pickling process, the graphite heat exchanger, extract acid from acid tank side by acid pump, pump into the graphite heat exchanger, the graphite heat exchanger and back into the other end of the acid tank, because this process is continuous, implements the heating of graphite heat exchanger of acid changed acid graphite heat exchanger heating way, make the acid temperature uniformity, shorten the time, improve the working efficiency.
Graphite blocks for casting
The graphite block used for casting is the graphite block made into casting mold, it is the most suitable material for continuous casting or semi-continuous casting mold of non-ferrous metals. In the use of graphite block mold, because of its good thermal conductivity (thermal conductivity determines the solidification speed of metal or alloy), mold self-lubrication performance and other factors, not only improve the casting speed. Because the size of the ingot is accurate, so the surface is smooth, the crystal structure is uniform, and the next process can be directly processed. This not only greatly improves the rate of finished products, reduces the loss of waste, but also greatly improves the quality of products. Continuous casting methods are vertical continuous casting method and horizontal continuous casting method.