Application of graphite molds in the field of die-casting diamond tools
Diamond tools have outstanding adaptability in the processing of non-ferrous metals and wear-resistant materials. Among tool materials, diamond is the hardest. Under suitable processing conditions, diamond has a longer service life than high-speed steel, carbide, ceramics and polycrystalline cubic boron nitride.diamond tooling covers nearly any concrete and stone floor application – coating removal, grinding, polishing, maintenance, edge work, etc.
Graphite molds are essential products for hot-pressed and cold-pressed diamond tools. Graphite molds are mostly made of high-purity fine particle purified graphite raw materials, which continue the advantages of graphite materials such as high temperature resistance, corrosion resistance, high strength, and low porosity. The important thing is that graphite material is easy to process with high precision. It can produce high-precision molds with various customized shapes (error ±0.02mm) to meet the needs of subsequent diamond processing.
Application of graphite electrodes in cast steel industry
Graphite electrodes play a vital role in electric arc furnace steelmaking, which is mainly reflected in the following aspects:
1. Transferring electric energy: Graphite electrodes have good conductivity and can transfer electric energy from the power supply to the electric arc furnace to form a high-temperature arc, thereby realizing the melting and heating of the charge.
2. Stabilizing the arc: Graphite electrodes have a high melting point and thermal stability, and can remain stable under the action of high-temperature arcs to ensure stable combustion of the arc.
3. Protecting the charge: During the melting process of the charge, the graphite electrode will produce protective gas, which can protect the charge from oxidation and corrosion.
4. Roughing and refining: In the process of electric arc furnace steelmaking, graphite electrodes not only transfer electrical energy to the furnace during the roughing process, melt the scrap steel and oxidize the impurities therein, and achieve the purpose of decarbonization, dephosphorization, and desulfurization of the charge, but also transfer electrical energy to the furnace during the refining process, heat the charge to the required temperature, and adjust the composition of the charge through processes such as oxygen blowing and argon blowing to achieve the control of steel type.
These functions of graphite electrodes are important factors to ensure the stable operation of electric arc furnace steelmaking. Therefore, in the steel industry, graphite electrodes are widely used in electric arc furnace steelmaking, using the arc generated between the graphite electrode and the charge to melt the metal and achieve the purpose of refining molten steel.
Application of graphite in semiconductor industry
The application of pyrolytic graphite in semiconductors mainly includes as heater crucible gasket, silicon carbide wafer carrier, silicon carbide simulated wafer sensor, LTO syringe tube, glass-metal sealing fixture, and tungsten and graphite ion implantation equipment parts.
Heater crucible gasket: Pyrolytic graphite is used as a gasket for heater crucible due to its good conductivity and high temperature resistance to ensure the stability and safety of the heating process.
Silicon carbide wafer carrier and silicon carbide simulated wafer sensor: In the semiconductor manufacturing process, pyrolytic graphite is used to support and fix silicon carbide wafers, as well as as a simulated wafer sensor to improve the efficiency and accuracy of the manufacturing process.
LTO syringe tube: In specific semiconductor processes, LTO syringe tubes made of pyrolytic graphite can withstand high temperatures and chemical corrosion to ensure the smooth progress of the process. Glass-metal sealing fixture: Pyrolytic graphite is used to make glass-metal sealing fixtures to ensure the sealing and reliability of semiconductor packaging processes. Tungsten and graphite ion implantation equipment parts: In the ion implantation process, pyrolytic graphite is used to manufacture key parts of the equipment, such as electrodes and pads, to support the implantation process of high-energy ions.
As a proud subsidiary of L.T Group, L.T Graphite with four producing bases located at middle of China, Henan province, and a branch producing base at Sichuan province.
