2022-11-19
2023-04-10Graphite molds are mostly used to connect the railway track. According to the chemical changes of aluminum and copper powder, the liquid high temperature copper liquid is caused, and the contemporary welding method of excellent performance is used to complete the high temperature caused by chemical reactions.Heating welding is suitable for connecting copper and copper, copper and steel, steel and steel. The solubility is carried out in the heat -resistant graphite mold. The mold shellfish uses a relatively high density and good wear resistance characteristics. It can bear the melting temperature of metal materials such as copper, steel, iron, and iron, and the inflow, flow speed, and its final appearance of molten metal materials are designed.There are many specifications for the type of hedging of the welding of the insulation reactions. Generally, the detailed inspiration reaction welded powder shellfish consists of three parts:1. Graphite molds used in welding welding: mold shells
2023-04-07Graphite powder is a wear -resistant material, and its self -lubrication performance is its most important feature. Graphn powder has a good self -lubrication performance due to its special layer -shaped crystal structure. The following are the analysis of the reasons for the self -lubricating property of graphite powder:The carbon atoms in graphite lattles are arranged in hexagonal on different planes. The distance between the carbon atoms in the same plane layer is 1.42 meters, and the distance between the carbon atom of each plane layer is 3.35. They are staggered along the same direction, repeat the position of the first plane in the third plane, the fourth plane repeats the position of the second plane, and so on. In each plane layer, because the carbon atoms are relatively tight, the binding forces between them are relatively large, and the carbon atom between layers and layers is far from each other, which is easy to separate and relatively slide. This is the main reason why gr
2023-04-07Graphite powder has a good application in many industrial production fields. Graphite powder is made by crushing natural sheet -like graphite, which can be processed into different types of graphite powder and grain powder of different granularity. The use of natural scales graphite as production materials, due to its small particle size and high carbon content, it is conducive to controlling production costs, stabilizing graphite powder prices, and excellent production performance graphite powder, which can be applied to different industrial fields. The following is a brief introduction to the impact of graphite powder particle size and performance:Gravine powder is a very important parameter, which also affects the performance of graphite powder. The thinner the grain size of the graphite powder, the better the lubrication performance of the graphite powder. If the grain size of graphite powder is below 10um, it is ultra -fine graphite powder. The granularity of graphite powder repr
2023-04-07Wiper dedicated graphite powder is specially used to produce high -quality car wiper. The wiper is composed of wiper and wiper motors. The components of high -quality wiper and motor should be added with graphite powder. The wiper with graphite powder has excellent performance such as high temperature resistance, lubrication, and corrosion resistance.The following is a special function of the wiper with graphite powder:The car wiper is installed on the front window of the car, often exposed to high temperature and low temperature, and exposed to wind and sunlight. When the wiper works, it is basically in rainy days. When the wiper works, it should rub the glass of the car's front window, take the rainwater, etc., and clean the window. The wiper will be damaged if used for a long time. When producing a good quality scraper, graphite powder is usually added. The parts in the wiper motor are also made of graphite powder. Graphite used for wiper mainly plays a role in lubricating and redu
2023-04-06Expansion graphite has excellent chemical stability, heat resistance, sealing, self -lubricating, radiation resistance and high heat -conducting. It is widely used in industrial fields such as machinery, oil, chemical, metallurgy, aerospace, navigation, transportation, and transportation. It is an ideal advanced sealing material. The mechanical property of expanded graphite may be different at different temperatures.1. Within the temperature range of 400 degrees Celsius, the compressed elastic modulus, rebound rate, and compression rate of expansion graphite sealing materials are not significantly affected by the temperature, and the impact is not greatly affected.2. There are significant differences in the compression modulus, rebound rate, and compression rate of two samples made of different materials formulas and processes, and there are also appropriate differences in the compression strength.3. Within the temperature range from room temperature to 400 degrees, the pressure resis
2023-04-06Sheet -shaped graphite is a natural ore, with a thin piece or scale, and the aggregate is in the form of soil. It is a hidden crystal. Film graphite has many high -quality physical and chemical characteristics, including good thermal stability. Compared with other products, the thermal stability of film -like graphite has great advantages.Film graphite is one of the most high -temperature -resistant materials at present. Generally, the strength of the material is gradually decreased at high temperature. However, when heating to 2,000 degrees Celsius, the strength of the sheet -shaped graphite is twice the temperature at room temperature.Sheet -shaped graphite has excellent heat shock resistance. When the temperature suddenly changes, the thermal expansion coefficient is small, so it has good thermal stability. When the temperature changes rapidly, cracks will not occur.Sheet -shaped graphite is a material with excellent thermal shock. For graphite electrodes used in electric furnace s
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