titanium rod in the pollution produced during thermal processing

Titanium in the heating, with the results of the interaction of oxygen, the oxide film formed on the surface. Heating at different temperatures, the structure and properties of the oxide film is different.titanium standard parts Below 538 ℃, the titanium oxide parabolic law. However, when more than 800 ℃, the oxide film to be decomposed, oxygen atoms between the oxide film will be converted into the metal lattice layer,titanium axle the oxygen content of titanium is increased. The oxide film is thickened. At this point there is no protective effect of the oxide film. Heating of industrial pure titanium oxide film thickness after half an hour in the air is gradually increased. Under the oxide film layer of a polluted gas element.titanium wire Increasing the temperature increases with the depth of the contaminated layer is heated and the heating atmosphere is affected. Titanium (with TC4 column) in carbon pollution layer silicon rods furnace heating temperature increases with the depth and deepened.