Metallurgical Industry

• Precious Metal Melting: In the melting and casting of precious metals such as gold, silver, and platinum, graphite crucibles are often used. Their high temperature resistance and chemical inertness prevent the crucibles from reacting with the precious metals, ensuring the purity of the metals and the quality of the casting.
• Non-Ferrous Metal Smelting: For the smelting of non-ferrous metals like aluminum, copper, and zinc, graphite crucibles can be used as smelting vessels. They can withstand high temperatures and have good thermal conductivity, which can improve the smelting efficiency and the quality of the metal.

Ceramic Industry

• Greenware Sintering: In the sintering process of ceramics, graphite crucibles are used to hold the greenware. The crucibles can evenly distribute heat, ensuring the uniformity of the sintering temperature and improving the quality of the sintered ceramics.
• Glaze Firing: During the glaze firing stage of ceramics, graphite crucibles can also be used. They can provide a stable high-temperature environment, making the glaze more smooth and shiny, and enhancing the decorative effect of the ceramics.

Chemical Industry

• Chemical Reactions: Graphite crucibles are suitable for some high-temperature chemical reactions. For example, in the production of certain catalysts and specialty chemicals, the crucibles can be used as reaction vessels. Their corrosion resistance and high temperature resistance ensure the safety and success of the reactions.
• Evaporation and Distillation: In the evaporation and distillation processes of some chemicals, graphite crucibles can be used to heat and evaporate the chemicals. The crucibles' good thermal conductivity and chemical inertness can prevent the chemicals from being contaminated and improve the purity of the products.

Semiconductor Industry

• Silicon Wafer Annealing: In the semiconductor manufacturing process, graphite crucibles are used for the annealing of silicon wafers. The crucibles can provide a clean and stable high-temperature environment, which is beneficial for the improvement of the crystal quality and the electrical properties of the silicon wafers.
• Compound Semiconductor Growth: For the growth of compound semiconductors such as gallium arsenide and indium phosphide, graphite crucibles are often used as reaction vessels. They can control the temperature and gas environment precisely, ensuring the quality and performance of the compound semiconductors.

Research and Experiment

• High-Temperature Laboratory Research: In scientific research institutions and universities, graphite crucibles are widely used in high-temperature laboratory research. They can be used for the melting and solidification experiments of various materials, the study of high-temperature chemical reactions, and the exploration of new materials and processes.
• Materials Testing: Graphite crucibles are also used in materials testing. For example, in the determination of the melting point and thermal stability of materials, the crucibles can provide a reliable test environment and accurate test results.