Graphite Powder
Size
1≥60%, etc
Package
25kg small bags into ton bags or ton bags
Features
High temperature resistance, conductivity and thermal conductivity, etc.
Application
As refractory material, conductive material and wear-resistant lubricating material, etc.
Graphite powder is a widely used industrial material, which is obtained from high-purity graphite after crushing, grinding, and screening. The classification of graphite powder is mainly based on the particle size, ranging from 50 mesh to 30000 mesh. The larger the mesh, the finer the particle size, and the higher the price.
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Graphite powder is widely used. According to its different uses, graphite powder can be divided into the following specifications：
- flake graphite powder
Flake graphite powder is the most widely used, and it is also the raw material for processing other graphite powder. Flake graphite has good toughness, good thermal conductivity, and corrosion resistance. It can be used as refractory, wear-resistant lubricating material, conductive material, casting, sand turning, die, and high-temperature metallurgical material.
- Colloidal graphite powder
Colloidal graphite is formed by graphite particles less than 2 microns evenly dispersed in an organic solvent. Colloidal graphite is a kind of black wire viscous suspension liquid. Colloidal graphite powder has the properties of high-quality natural flake graphite, and has special oxidation resistance, self-lubricating and plasticity under high-temperature conditions, and has good conductivity, heat conduction, and adhesion. It is mainly used in sealing, metallurgy demoulding, and other industries
- Superfine graphite powder
The specifications of ultra-fine graphite powder are generally between 1800 mesh and 8000 mesh. It is mainly used in powder metallurgy mold release agents, making graphite crucible, battery anode, and additives for conductive materials
- Nano graphite powder
The main specification of nano graphite powder is d50 400nm. The process of nano graphite powder is complex and the yield is low, so the price is relatively high. It is mainly used in anti-corrosion coatings, lubricating oil additives, grease additives, precision graphite sealing, and other industries. In addition, nano graphite powder also has high application value in scientific research institutions
- High purity toner
As the name suggests, high-purity toner is highly purified. Its conductivity is 100 times that of ordinary metals, and it has good lubrication. High purity graphite powder is mainly used to make conductive coating and high strength graphite electrodes.
2. Testing method of graphite powder
At present, the inspection methods of domestic carburizes are all the inspection methods of national standard coal. The specific inspection methods include carbon content, volatile matter, moisture, ash, sulfur content, etc. the simple way is to draw on the paper with smooth handwriting and no blocking feeling. The obvious one is graphite products, and the less obvious one maybe coal or non-graphitized petroleum coke powder
It is more complicated: 1. First, two 1g samples of graphite powder were accurately weighed with an electronic analytical balance and put into a double cover porcelain crucible and a graphite boat with known weight respectively. Then, they were dried to the balance weight in a 105 ℃ drying oven, and the weight of graphite powder G1 and G2 were recorded respectively. 2. Put the double cover porcelain crucible with graphite powder into a high-temperature furnace, keep it at 950 ℃ for 7 minutes with a stopwatch, take it out, cool it in a dryer to room temperature, and weigh the weight of graphite powder G3. 3. Put the graphite boat containing graphite powder in a high-temperature furnace at 950 ℃ for 90 minutes, then take out the graphite powder and cool it to room temperature. At this time, the weight of the material is the weight of ash G4. 4. First, the volatile matter V (%) = (g1-g3) / G1 was calculated × The formula C (%) = [(g2-v-g4) / G2] is obtained × 100％。 This is the purity test method of graphite powder,
Graphite powder is a very promising product, which has been applied in all walks of life. Manager Xu of Liugong has been in business for ten years and has contacted numerous graphite powder customers in various industries. Now manager Xu will tell you about the future development prospect of graphite powder.
It is estimated that in the next ten years, as long as the whole market is enough to support, mining and expansion are successful, the production capacity of graphite powder will continue to grow. The new graphite production capacity will make up for the current production capacity of 100000 tons of flake graphite lost due to mining due to engineering mistakes. According to the analysis of industry insiders, global graphite product research and development will be carried out in ten fields. At the same time, as the world’s largest producer of graphite, China’s output in recent years accounts for 40% ~ 50% of the world’s total output. India, the world’s second-largest producer, has produced about 15% of its graphite in the past decade. Other producers are Brazil (7%), Mexico (6%), and North Korea (6%). The total graphite output of the above five countries accounts for more than 75% of the world’s total output.
If the world graphite market environment continues to develop in a favorable direction in the future, graphite production will increase, especially in Brazil, Canada, China, India, and Mexico. The total volume is expected to increase by 120000 tons“ Under the guidance of the direction of graphite deep processing proposed in the tenth five-year plan, the graphite deep processing products that China will focus on developing in the next five years are profiled carbon, graphite fluoride, siliconized graphite, graphite emulsion for kinescope, lithium-ion battery, carbon materials, fuel cell carbon materials, etc.
In addition, there is still a big gap in the production projects of graphite deep processing products in China, and the development work is promising. For example, there are 1000 nuclear power plants in the world, of which there are only three in China at present, while the state plans to build 23, and the pure graphite used in them basically depends on imports.
At present, with the globalization of economic development, the research and development of global graphite products will be carried out in ten major areas
- High-performance seals and products, the world’s trade volume of 10 billion U.S. dollars, the top-grade nuclear reverse application of graphite products 1.2 million U.S. dollars/ton. There are four key technologies in the product: insertion technology, expanded sulfur technology, composite reinforcement technology, and molding technology.
- High-performance conductive materials, one is made of interlayer compounds; Second, high performance and stability; The third is the process repair.
- Battery materials.
- Environmental protection materials.
- Biomaterials.
- Sound insulation material.
- Protective safety materials.
- Shielding material.
- Arts and crafts materials.
- Catalyst.
