2023-09-04

Carbon products for aluminum and carbon blocks and crucibles for metallurgical furnaces

Aluminum (magnesium) electrolysis uses pre baked anodes and anode paste, mainly produced from petroleum coke and asphalt coke, sometimes with a small amount of artificial graphite added. China is rich in bauxite. Since the 1980s, the electrolytic aluminum industry has developed rapidly, and for every ton of aluminum produced, approximately 450KG of pre baked anode is required. Therefore, carbon for aluminum has developed rapidly. But anode paste, like electrode paste, is considered a phased out product.The content of boron, vanadium, nickel, and sodium in the raw materials for pre baked anodes should be strictly limited.Carbon blocks used in various metallurgical furnaces (such as the side blocks of ironmaking blast furnaces, ferroalloy furnaces, calcium carbide furnaces, and aluminum electrolysis cells) are all used at high temperatures, so carbon blocks should have high mechanical strength, good thermal stability, and corrosion resistance, but the requirements for ash content are no

2023-02-06

Graphite physics

Graphite is soft, black and gray, with greasy feeling, which can pollute paper. The hardness is 1-2, and the hardness can be increased to 3 to 5 along the vertical direction.

2024-04-02

Sustainable development and utilization of graphite resources

With the wide application of graphite in various fields, the sustainable development and utilization of its resources has become the focus of attention. In order to realize the sustainable use of graphite resources, we need to pay attention to environmental protection and ecological balance in the mining process.At the same time, we should also actively develop new graphite extraction and processing technolo

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

Some related knowledge of mold processing

1. Use as conductive materialsWhen using an arc furnace or mineral heat electric furnace to smell all kinds of alloy steel, iron alloys or production stones (carbonized calcium), and yellow phosphorus, strong current passes through carbonic electrodes (or continuous self -roasting electrodes -that is, electrode paste) or graphite electrode introduction The melting area of the electric furnace generates an arc, which translates the electrical energy into thermal energy, and the temperature increases to about 2000 degrees Celsius, so as to meet the requirements of smelting or reaction. Metal magnesium, aluminum, and sodium are generally removed with melting salt electrolysis. At this time, the anode conductive material of the electrolytes use graphized electrodes or continuous self -baking electrodes (anode paste, sometimes pre -baking anode). The temperature of melting salt electrolytic is generally below 1,000 degrees Celsius. The anode conductive material for producing alkaline (sodi

2023-07-06

Battery material, promote renewable energy development

In recent years, with the increasingly serious problems of environmental pollution and energy shortage, renewable energy as a clean, low -carbon, and sustainable development model has gradually been given important strategic significance. Among the applications of renewable energy, batteries as energy storage equipment are also an indispensable part of them. In order to further promote the development of renewable energy, we need to continuously explore new battery materials to improve the power density, cycle life and security of the battery.At present, researchers have proposed many new battery materials, such as lithium ion batteries, sodium ion batteries, zinc air batteries, etc. These battery materials can better meet the needs of energy storage and utilization compared to traditional lead -acid batteries, nickel -metal hydride batteries. Moreover, in the production process, the energy and materials they consume are also greatly reduced, which is more in line with the requirement

2023-02-22

How to clean up the active board?

1. Preparation before work: Wear a hood, raindrops, glue gloves, safety helmets, glue gloves must be allowed to simply water, sore water, and allow them to be allowed to work; Add 109 sodium hydroxide solution water solution; turn on the anode rod back cover, use both hands to gently display the graphite anode board from the anode rod, and migrate to the graphite cleaning slot soak for 30 minutes.2. Actual operation: Remove the graphite anode plate that soaks soaked for thirty minutes from the soaking solution, flatten the electroplating equipment on the wooden frame, and use 240#-320#water matte paper to clean the surface layer of the graphite anode plate. , Hold the positive film with one hand, gently press the policing paper with the other hand, and drink water to clean it until the stains are eliminated, and then use the water matte paper to remove the anode oxidation and touch the guidance. After that, clean all the liquid cold water, and check whether there is dirt on the surfac

2024-04-23

Graphite, the Beauty of Black Gold

Graphite, known as "black gold", has a profound black and metallic luster that endows it with unique aesthetic value. In the hands of artists, graphite transforms into a magical tool that can showcase a unique style, whether it is delicate sketching or rough graffiti.In addition to the field of art, graphite has also demonstrated its beauty in the fields of technology and industry. Its high temperature and corrosion resistance properties enable graphite to remain stable in harsh environments such as high-temperature furnaces and chemical pipelines, silently safeguarding the safety and efficiency of industrial production.The beauty of graphite lies in its scarcity and preciousness. As a non renewable natural resource, the extraction and utilization of graphite require more caution and sustainability. We should cherish this gift from nature and let the beauty of graphite continue to shine in the long river of human civilization.

2023-08-08

Precautions during the storage process of carbon material raw materials

(1) The storage site for carbon raw materials must be a cement floor, and the mixing of external impurities should be minimized when storing raw materials.(2) During the storage of raw materials, it is strictly prohibited to mix dust, sediment, and other impurities. It is best to store low ash materials in storage, and urgently needed raw materials should be kept in stock. For spare raw materials, if there is no warehouse for storage, they can also be stored outdoors, but management must be strengthened and appropriate measures must be taken.(3) During the storage period, carbon raw materials should be prevented from mixing with each other, especially to prevent more ash raw materials from mixing with less ash raw materials. If the raw materials are mixed, they should be downgraded for use. For the same type of raw materials, if the quality inspection results differ significantly, they should be stacked separately.(4) To prevent rain and snow from soaking in raw materials, it is neces

2023-10-27

Characteristics of graphite crucibles

Graphite crucibles have good thermal conductivity and high temperature resistance. During high-temperature use, their coefficient of thermal expansion is small, and they have certain strain resistance for rapid heating and cooling. Strong corrosion resistance to acid and alkaline solutions, with excellent chemical stability. Graphite crucibles, due to their excellent performance, are widely used in industries such as metallurgy, casting, machinery, and chemical engineering for the smelting of alloy tool steel and the melting of non-ferrous metals and their alloys. And it has good technical and economic effects. The production of domestic graphite crucibles has reached or even exceeded that of imported crucibles:1. The high density of graphite crucibles enables them to have good thermal conductivity;2. The graphite crucible has a specially made and dense molding material on its surface, greatly improving the corrosion resistance of the product and extending its service life;3. The ther