from the conferences organized by TANGER Ltd. provisional website
In the field of powder metallurgy, the characteristics of metal powders are necessary for designing technological processes within transport, handling and storage. This paper is focused on the study of three metal powders, CrCNiCr, NiCrBSi, WCCoCr, which are used for the HVOF (High Velocity Oxy-Fuel) technology of high-speed thermal spraying. This technology is used by the company SERVIS ARMATUR in their own production programme. The company SERVIS ARMATUR cooperates with the Bulk Solid Centre, VSB-Technical University of Ostrava, in the field of metal powders characterization. Each of the three samples was subjected to detailed analysis. The analysis included a measurement of mechanical and physical properties such as particle shape, particle size distribution, the angle of internal friction, compressibility and aeration. Some recommendations for production were determined based on the results of physical-mechanical tests. Improvement was achieved primarily in storage, handling and dosage to the diffuser.Keywords: metal powders, powder metallurgy, mechanical and physical properties.