2023-12-06

The role and use of graphite

Graphite is an allotrope of carbon with various excellent properties, and is therefore widely used in many fields. The following are the main functions and uses of graphite:

Mining and processing of graphite: Technological advances and environmental challenges

The mining and processing of graphite is a complex and delicate process involving multiple technical links and environmental challenges. As the global demand for graphite resources continues to grow, mining and processing technology is also improving, but at the same time, it also needs to face increasingly severe environmental problems.In terms of mining, with the progress of geological exploration technology, people can more accurately locate the location and scale of graphite deposits, and improve mining efficiency. At the same time, the application of mechanization, automation and other technologies has also reduced mining costs and improved production safety. However, the waste rock, waste water and other wastes generated in the mining process have caused a lot of pressure on the environment, and effective treatment measures need to be taken.In terms of processing, the purification, crushing, molding and other processes of graphite are also constantly optimized. The new purificat

2023-09-21

Why can graphite blocks be used as sealing rings

In the graphite industry, it is well known that graphite products are widely used in many industries. It is believed that friends who often walk in graphite rings know about graphite sealing rings. So why is graphite used as a sealing material? This is a question worth exploring.Graphite has characteristics that cannot be replaced by other metal materials, such as conductivity, good thermal conductivity, and excellent corrosion resistance. Choosing it as a sealing material also has its own special characteristics. Carbon graphite rings have physical and mechanical properties such as high temperature resistance, self-lubrication, low friction coefficient, wear resistance, and low thermal expansion coefficient. Therefore, graphite sealing rings can be seen in various industrial sectors such as papermaking, textile, and medicine.Moreover, graphite blocks can not only be used as graphite sealing rings, but also as various types of graphite machined parts in other industries.

2023-06-13

How to Use Expanded Graphite

1. Protective purposesExpanded graphite can be used as a protective material to protect metals and other easily damaged objects, such as circuit boards and steel. Due to the fact that expanded graphite can expand up to 10 times, it can effectively block flames and prevent these objects from being burned by flames.2. Insulation purposeExpanded graphite can also be used as insulation material because it has good thermal resistance performance and can effectively block heat, so it can be used for insulation, such as electronic products. It can also be used for cooling, preventing heat loss, and thus providing insulation.3. Filtering purposeExpanded graphite can also be used as a filter material because it has adsorption properties and can be used to adsorb toxic substances, such as pollutants in water treatment, effectively removing pollutants from water. It can also be used for air purification to block the entry of harmful substances.4. Reinforcement purposeExpanded graphite can also b

2023-06-15

Introduction to the application of flake graphite, come and collect it!

Flake graphite is a non-metallic mineral with unique physical and chemical properties such as high temperature resistance, oxidation resistance, corrosion resistance, thermal shock resistance, high strength, good toughness, high self-lubricating strength, strong thermal conductivity and conductivity. The graphite series products are mainly used in industries such as metallurgy, machinery, electronics, batteries, chemicals, light industry, military industry, national defense, aerospace, refractory materials, etc. Flake graphite is an essential non-metallic material for modern high-tech applications.What are the characteristics of flake graphite? Let's take a brief look together.The flake graphite sheet is thin and has good toughness, excellent physical and chemical properties, good conductivity, conductivity, thermal shock resistance, corrosion resistance, etc.What are the applications of flake graphite? Let's take a brief look together.1. Refractory materials. Flake graphite is widely

2023-08-15

Why are the quality indicators of high-power and ultra-high-power graphite electrodes superior to ordinary power graphite electrodes

The current density of graphite electrodes used in high-power and ultra-high-power electric furnaces significantly increases, resulting in the following problems: (1) due to resistance heat and hot airflow, the temperature of the electrodes increases, resulting in an increase in the thermal expansion of the electrodes and joints, and an increase in the oxidation consumption of the electrodes; (2) The temperature difference between the center of the electrode and the outer circle of the electrode increases, and the thermal stress caused by the temperature difference also increases accordingly. The electrode is prone to cracking and surface peeling; (3) After the power of the electric furnace is increased, the electromagnetic force increases, causing severe vibration and increasing the probability of electrode breakage.Therefore, the physical and chemical properties of high-power and ultra-high-power graphite electrodes must be superior to ordinary power graphite electrodes, such as low

2023-07-24

The relationship between scales graphite and nuclear graphite

1. Different applications of scales graphite and nuclear graphite.Scales graphite has good high temperature resistance, heat conduction, conductivity, lubrication and other properties. It is an indispensable resource for the cultivation of the development of emerging industries and the transformation and upgrading of traditional industries. Graphite is mainly used as graphite materials in the nuclear industry, including the atomic reactor with neutron slow agents and reflexes, the production of hot column graphite for the production of isotopes, and the ball -shaped graphite and block graphite with high temperature and cold piles.2. Scales graphite and nuclear graphite are different branches of graphite materials.The scales graphite crystals are complete, thin -shaped, good toughness, stable physical and chemical performance, and have good temperature resistance, lubrication, conductivity, heat shock resistance, corrosion resistance, antioxidant, etc. Scales graphite is a very promisi

2022-11-22

What are the steps of carbon felt purification?

Carbon felt is a major element in many alloy products, so carbon felt purification plays an important role in alloy production. Meanwhile, in the smelting process of metal silicon, silica, ore, etc. are usually used. Silicon slag will also be produced during the smelting process, and silicon slag also contains a certain amount of industrial carbon felt, so we can use carbon felt slag to further purify carbon felt.The first step is to separate the obvious light-colored slag and dark-colored slag from the silicon slag with a manual hammer, and then use the separation principle to further separate the silicon content in the silicon slag.Impurities in silicon slag exist in two forms: reduced and unreduced. In industrial silicon, a flocculant composed of Na2O5~50%, SiO250~95% or Na2O5~50%, SiO250~95%, MgO and CaO is added to industrial silicon. With 35% flux, the melting point of the slag can be reduced from the original 1450 to about 1480 and then down to about 1000. It can also reduce th

2023-10-25

Classification of graphite

Carbon products can be divided into graphite electrode, carbon block, graphite anode, carbon electrode, paste, electrochar, carbon fiber, special graphite, graphite heat exchanger, etc. according to their usage. Graphite electrodes can be classified into ordinary power graphite electrodes based on the allowable current density. High power electrode, ultra high power electrode. Carbon blocks can be divided into blast furnace carbon blocks, aluminum carbon blocks, electric furnace blocks, etc. according to their purpose. Carbon products can be divided into carbon products, graphite products, carbon fibers, and graphite fibers according to the processing depth. Carbon products can be divided into graphite products, carbon products, carbon fibers, special graphite products, etc. according to different raw materials and production processes. Carbon products can be divided into multi ash products and low ash products (with ash content less than 1%) based on their ash content.The national an

2023-08-01

Development of Expandable Graphite

Graphite crystal has a hexagonal network plane layered structure composed of carbon elements. The carbon atoms on the layer plane are bound by strong Covalent bond, while the layers are bound by Van der Waals force force. The binding is very weak, and the distance between layers is large. Therefore, under appropriate conditions, acid, alkali gold, salt and other chemicals can be inserted into the graphite layers, And combine with carbon atoms to form a new chemical phase - Graphite intercalation compound (GIC). When heated to an appropriate temperature, this interlayer compound can instantly and rapidly decompose, producing a large amount of gas, which makes graphite expand along the axis into a new worm like material, namely expanded graphite. This unexpanded Graphite intercalation compound is expandable graphite.Expandable graphite was first discovered by Schaufautl, a German. In 1841, Schaufautl soaked natural graphite in a mixture of concentrated HNO3 and concentrated H2SO4, and t