Titanium is a very active metal element that acts with all elements. Titanium interacts with oxygen during heating and forms an oxide film on the surface. The structure and properties of the oxide film are different at different heating temperatures.

1.Preparation of titanium plate for raw material supply status requirements

    All sheets are required to be supplied in an annealed condition. In order to ensure the quality of the parts, the oxide layer and other contamination on the surface of the board should be removed. The surface of the titanium plate shall be free of defects such as cracks, peeling, folding, inclusions, and pickling. The sheet should be straight and out of stock. In the future process of cutting, forming, assembling, transporting and storing, care should be taken to prevent surface scratches.

2.Degreasing and cleaning before forming

    Before any thermoforming, the surface grease, or other contaminants, should be removed to avoid contamination of the titanium during heating. In addition, oxides on the surface of the wool reduce the plasticity of the material and should be removed prior to forming. Therefore, in order to reduce various effects in the atmosphere environment, vacuum quenching furnace and vacuum annealing furnace are generally used for heating, and the inert gas in the vacuum furnace can protect the titanium and titanium alloy materials from contamination during heating.。