1、 Used as a corrosion-resistant structural material
Graphite electrodes impregnated with organic or inorganic resins have the characteristics of good corrosion resistance, good thermal conductivity, and low permeability. This type of impregnated graphite is also known as impermeable graphite. It is widely used in the production of various heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters, pumps and other equipment. It is widely used in industrial sectors such as petroleum refining, petrochemicals, hydrometallurgy, acid-base production, synthetic fibers, and papermaking, which can save a lot of metal materials such as stainless steel. The production of impermeable graphite has become an important branch of the carbon industry.
2、 Used as a wear-resistant and lubricating material
Carbon and graphite materials not only have high chemical stability, but also have good lubrication properties. It is often impossible to improve the wear resistance of sliding components using lubricating oil under high-speed, high-temperature, and high-pressure conditions. Graphite wear-resistant materials can operate without lubricating oil in corrosive media at temperatures ranging from -200 to 2000 degrees Celsius and at high sliding speeds (up to 100 meters per second). Therefore, many compressors and pumps that transport corrosive media widely use piston rings, sealing rings, and bearings made of graphite materials. They do not require the addition of lubricants during operation. This wear-resistant material is made by impregnating ordinary carbon or graphite materials with organic resin or liquid metal materials. Graphite emulsion is also a good lubricant for many metal processing (such as wire drawing and tube drawing).
Post time: 3月-20-2024
