TMA-G – Gas Metal Atomizer

TMA-G is a family of gas atomizers designed to produce metal powders of rounded and regular shape, to be used in many industrial, chemical, electronics and rapid prototyping application (additive manufacturing) as SLM (Selective Laser Melting) and EBM (Electron Beam Melting).
The atomizer is based on an induction furnace, working in a closed chamber under protective atmosphere, where the molten metal is poured and hit by a jet of high pressure inert gas, producing fine and deoxidized powders.
Induction heating ensures a very good homogenization of the melt thanks to the action of magnetic stirring during the molten phase.
The die unit is equipped with an extra induction generator, which allows to restart the cycle in case of cycle interruption.
Following the steps of melting and homogenization, the metal is poured vertically through an injection system positioned on the lower base of the crucible (nozzle).
The type of nozzle used in TMA-G is the so-called close-coupled nozzle.
Multiple streams of high pressure inert gas are aimed and focused on the metal beam in order to ensure a fast alloy solidification in the form of fine powder.
The real-time process variables such as temperature, gas pressure, induction power, oxygen ppm content in the chamber and many others, are displayed in both numerical and graphical format on a monitoring system for an intuitive understanding of the working cycle.
The system can be operated manually or in fully automatic mode, thanks to the programmability of the entire set of the process parameters via a user-friendly touch-screen interface.
The monitoring system can be easily connected via Ethernet to the factory network.