Introduction of titanium and titanium alloy powder

titanium alloy powder generally includes three aspects, namely purity, particle size and particle shape. The purity of titanium powder is related to its particle size. For products of the same specification, the smaller the particle size, the lower the purity. Titanium powder particle size is divided into 4 grades, the particle size of 1000-50pm is coarse powder, 50-10pm is fine powder, 10-0.5pm is fine powder, and less than 0.5pm is ultrafine powder. In graded products, except for the requirements of special purposes, it is generally graded by oxygen content, that is, the lower the oxygen content, the better the quality and the higher the grade. Those with an oxygen content of less than 0.15% are high-quality titanium powders.

Specifications: 10 mesh, 20 mesh, 30 mesh, 35 mesh, 36 mesh, 40 mesh, 50 mesh, 60 mesh, 80 mesh, 100 mesh, 120 mesh, 150 mesh, 160 mesh, 180 mesh, 250 mesh, 300 mesh , 325 mesh, 350 mesh, 400 mesh

Physical properties: Titanium powder is dark gray amorphous powder, boiling point ≤3000℃, melting point 1668℃±2℃, insoluble in water and organic solvents at room temperature. It is a non-magnetic metal, it will not be magnetized in a large magnetic field, and it is non-toxic and tasteless, and has good compatibility with human tissue and blood.

Chemical properties: It does not interact with water, dilute sulfuric acid, dilute hydrochloric acid and nitric acid at room temperature, but can be etched by hydrofluoric acid, phosphoric acid, and molten alkali. Titanium is soluble in hot hydrochloric acid and hot sulfuric acid, and also soluble in hydrofluoric acid. Or in a mixture of hydrofluoric acid and hydrochloric acid (sulfuric acid). Titanium powder will increase the content of N, H, O, and C in the atmosphere. May explode if mixed with strong oxides.

Titanium powder has good corrosion resistance and is mostly used in aerospace industry, chemical corrosion-resistant materials, electric vacuum materials, alloy additives, etc. Titanium powder refers to titanium metal powder with a size of less than 1mm and an irregular shape, usually black and gray. Titanium powder has a large surface free energy. Therefore, it is more active than metal titanium blocks, and it is easier to react with other elements or compounds, resulting in oxidation, combustion and explosion. It is a dangerous product. Its purity and properties largely depend on the preparation method and its process conditions.