Quality assessment of titanium and titanium alloy plates

Quality assessment of titanium and titanium alloy plates

     Quality titanium products depends primarily on the quality of titanium and titanium alloy plate. Titanium and titanium alloy plate quality process for the preparation of a variety of different, a big difference.
     HDH method using industrial methods can be prepared to take "normal level" of titanium and titanium alloy plate at the end, to the preparation of high-quality titanium powder is more difficult, the need to improve equipment and processes. Meanwhile, if you want the system to take high-quality titanium and titanium plates, must adopt new technologies, such as PBEP, MA, TGA and other technology. Most of the production process for these small quantities, high production costs, the operation difficult. However, under the stringent requirements of the aviation industry must develop these high-quality titanium and titanium plates.
     Powder metallurgy loose powder body is pressed into a certain size, shape, density and strength as well as certain briquettes.
     medical titanium plate forming method molding, cold isostatic pressing, rolling and extrusion, as well as new technology - metal injection molding.
     For pure titanium or titanium alloy plate pre-alloy powder, a powder is a single shape, just press the need to use the appropriate size, grain size, grain size distribution of titanium or a titanium plate, weighing and group approval.
     When titanium plate was prepared by mixing the elements, you must use the appropriate titanium and alloy additives, weighing, mixing and group approval.
     If you add a spare titanium alloy powder grain size and failed, as required to be re-graded. When grading common method is screening.
     If you use the titanium or titanium alloy powder bulk particle board uneven, or using two powder is used as a raw material, must be mixed. Commonly used mechanical methods mixer ball mill, V-blender, cone blender, mixer, etc. wine barrel shape. For the average grain size with a dry mix. For powder, especially powder, should be used after the mud gram staff, if a long time can be wet-mixed, liquid medium used for alcohol. Thus, not only safe but also to ensure the powder oxidation.
   For powder metallurgy of many metals, in order to improve the processing performance during molding, various additives usually added. But when you can not additive titanium and titanium plates forming the end. This is because titanium is very high chemical activity at elevated temperatures, any residual additive will contaminate the product, affect product quality.
     In order to improve and reduce friction when the mold wall and molding powder to prevent adhesion between titanium and die alone in the mold wall with zinc and other pre-lubricated with a hard, but also reduce the pressure stripping, stripping or the use of blank Act to prevent the workpiece and die adhesion.