Tungsten crucible is mainly used in metallurgical industry, machining, glass and ceramic industry and other fields. Tungsten crucible is one of the products of tungsten, mainly divided into sintering forming, stamping forming, spinning type, the use of molybdenum rod turning processing, welding forming a variety of, the use of pure tungsten plate, tungsten sheet and pure tungsten rod through the corresponding process. It can be used in vacuum inert gases below 2600 degrees.
Tungsten has high melting point, high boiling point, good high temperature strength, anti-friction corrosion resistance, high thermal conductivity, small thermal expansion coefficient, good hardenability, and is widely used in rare earth smelting, quartz glass, electronic spraying, crystal growth and other industries.
How to clean the oxidized material on the surface of metal molybdenum rod?
Molybdenum rod after the high temperature burning of hydrogen and oxygen flame, the surface will form a dark oxidizing substance, May I ask is molybdenum dioxide or molybdenum trioxide? Now it needs to be cleaned off, it is better to soak in some chemical agents to dissolve it, what is the method?
Molybdenum is stable in air at room temperature and reacts with oxygen to form molybdenum trioxide at 500℃. Molybdenum trioxide is slightly soluble in hydrochloric acid, easily soluble in hot concentrated sulfuric acid and concentrated nitric acid, and can be dissolved in ammonia and alkali solutions, so dilute sodium hydroxide solution is dissolved and washed away.
