Time：2023.10.18Browse：1
Spherical graphite has a wide range of market applications, widely used in industry, agriculture, and mining. It has a wide range of applications and is an important additive material in industrial production. So where are spherical graphite used.
1. Spherical graphite as refractory material: The graphite structure and its related products have the properties of high temperature resistance and high strength, and can be mainly used in the metallurgical machinery industry for graphite crucibles and other manufacturing processes.
2. Spherical graphite as a conductive material: used for manufacturing electrodes, carbon tubes, positive electrodes for mercury rectifiers, telephone parts, television tubes, etc.
3. Spherical graphite as a wear-resistant lubricating material: graphite is commonly used as a lubricant in the mechanical industry. Lubricants typically cannot be used at high speeds, temperatures, and pressures, and wear-resistant materials can be graphite at high sliding speeds.
4. The spherical graphite structure has good chemical stability. Graphite processed through some special products has good thermal conductivity and low permeability, and is used for making heat exchangers, reaction tanks, heaters, filters, etc. Widely researched and applied in industrial management departments such as chemical engineering, hydrometallurgy, acid-base production, synthetic fibers, and papermaking at China University of Petroleum, it can save a large amount of metal composite materials for enterprises.
5. Spherical graphite is suitable for casting, casting, molds, and high-temperature metallurgical materials. Due to changes in thermal expansion coefficient and thermal shock resistance, graphite can be used as a mold glass filter. By using graphite, black metal castings with precise dimensions, smooth surfaces, high yield, no machining or mechanical processing, can be used slightly, thus saving a large amount of metal. Production of hard alloy powder metallurgy process.
2023-02-10Fluorine graphite is a new type of graphite product that integrates performance and benefits. With high added value and unique quality, graphite functional materials are widely used in multiple fields. It is mainly used in the fields of battery raw materials and solid lubricants.
Expansion graphite is a kind of graphite that can expand and shrink in high temperature environments. This material has very special physical and chemical properties. Graphite is a kind of carbon, and its structure is connected by hexagonal carbon atoms. Generally, graphite can be completely melted, but at high temperature, due to the enhancement of the interaction between carbon atoms, graphite can form more stable stability The structure of the expansion is achieved.1. The development of expansion graphiteThe development of expansion graphite dates back to the 1960s. At that time, scientists discovered that graphite can be deformed regularly within a certain temperature range, and the translucent graphite can remain stable. Subsequently, scientists also found that under certain conditions, graphite at high temperature can be used to create a variety of structures, and these structures can be used to support greater weight and develop the technology of expanding graphite.Second, the2023-07-10Expansion graphite, a new multifunctional insulation material
2023-04-21Flake graphite is widely used in high-grade refractory materials and coatings in the metallurgy industry. It is like fish phosphorus, belongs to hexagonal crystal system, and has a layered structure. Below, we will provide a detailed explanation of the key points to pay attention to when processing refractory materials with flake graphite.
The graphite electrode used in DC arc furnaces has no skin effect when current passes through, and the current is evenly distributed on the current cross-section. Compared with AC arc furnaces, the current density passing through the electrode can be appropriately increased. For ultra high power electric furnaces with the same input power, DC electric arc furnaces only use one electrode, with a larger electrode diameter. For example, a 100t AC electric arc furnace uses electrodes with a diameter of 600mm, while a 100t DC electric arc furnace uses electrodes with a diameter of 700mm. Larger DC electric arc furnaces even require electrodes with a diameter of 750-800mm, and the current load is also increasing. Therefore, the following requirements are put forward for the quality of graphite electrodes:(1) The resistivity of the electrode body and joints should be smaller, such as the resistivity of the electrode body dropping to 5 μ Around Ω. m, the resistivity of the joint decreases to2023-08-15What are the quality requirements for graphite electrodes used in DC arc furnaces
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