What are the uses of tungsten crucible

Tungsten crucibles are used in a variety of high temperature applications including: Melting and casting of metals and other materials such as gold, silver and other high temperature materials. Grow single crystals of materials such as sapphire and silicon. Heat treatment and sintering of high temperature materials. Vacuum deposition and sputtering processes in the semiconductor and electronics industries. Tungsten crucibles are valued for their high melting point, high strength and resistance to chemical attack, making them suitable for use in extreme temperatures and corrosive environments.

Because tungsten has unique properties such as high melting point and hardness, manufacturing tungsten crucibles requires specialized equipment and materials. Here’s a general overview of the process: Raw materials: Tungsten metal powder is usually used as raw material for manufacturing tungsten crucibles. Molding: Mix tungsten powder with a binder such as resin to form a slurry or paste. The mixture is then molded into the desired crucible shape using processes such as injection molding, pressing or extrusion. Sintering: The formed crucible is then subjected to a high-temperature sintering process in a controlled atmosphere to bind the tungsten particles together and achieve the desired strength and density. Machining (optional): Depending on final size and surface finish requirements, sintered tungsten crucibles may undergo additional machining processes such as turning, milling, or drilling to achieve the desired specifications. Quality Control: Finished tungsten crucibles are inspected for dimensional accuracy, surface quality and overall integrity before they are prepared for use or shipped. It is important to note that the production of tungsten crucibles is a complex process that requires expertise in materials science and manufacturing technology. Additionally, due to the challenging properties of tungsten, specialized equipment and safety measures are required throughout the manufacturing process.