Electrolytic cobalt

cobaltIt is a shiny steel-grey metal, hard and brittle, ferromagnetic, which disappears when heated to 1150 degrees Celsius.

Electrolytic cobalt, Chinese alias cobalt powder; cobalt; cobalt, sponge; cobalt silk; cobalt sheet; cobalt particles; nano-cobalt. Cobalt has 2 and 3 valences. It does not react with water at room temperature and is stable in humid air. When heated to above 300 degrees Celsius, CoO is oxidized and burned into Co3O4 under white heat. The fine cobalt powder prepared by the hydrogen reduction method spontaneously ignites in the air to form cobalt oxide.

Applications:

Cobalt is mainly used to make alloys. Cobalt-based alloys are a general term for one or more alloys composed of cobalt and chromium, tungsten, iron, and nickel. Adding a certain amount of cobalt to tool steel can significantly improve the wear resistance of tool steel. High performance and cutting performance. Stellite carbide containing 50 or more cobalt will not lose its original hardness even when heated to 1000 degrees Celsius.

At present, this cemented carbide has become the most important material between gold-containing tools and aluminum. In this material, cobalt combines carbide particles of other metals in the alloy composition, making the alloy more ductile and less resistant to impact Sensitive. Welding the alloy to the surface of the part increases the life of the part by 3-7 times. The most widely used alloys in aerospace technology are nickel-based alloys, and cobalt-based alloys can also be used.