TMA-W is a family of water atomizers designed to produce metal powders of irregular shape for use in industrial, chemical, soldering paste, resin filter, MIM and sintering applications.
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 high pressure water jet, producing fine and deoxidized powders.
The 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 auxiliary induction generator that allows the cycle to be restarted in the event of an interruption.
After the melting and homogenization steps, the metal is poured vertically through an injection system located at the bottom of the crucible (nozzle).
Multiple high-pressure water jets are directed and focused onto the metal stream to ensure rapid solidification of the alloy into a fine powder.
Real-time process variables such as temperature, gas pressure, induction power, oxygen ppm in the chamber and many others are displayed in both numerical and graphical formats on a monitoring system for intuitive understanding of the work cycle.
The system can be operated manually or in fully automatic mode thanks to the programmability of the entire set of process parameters through a user-friendly touch screen interface.
The monitoring system can be easily connected to the factory network via Ethernet.
Technology & Features
Metals and Field of Application
Atomized Metals: Cu, Zn, Au, Ag and their alloys like Bronze and Brass.
Field of Applications: industrial, chemical, soldering paste, resin filters, MIM and sintering applications
Advanced Self Tuning thermoregulation (AST™) with exact temperature control of the melted alloys
S-type thermocouple positioned inside the stopper
Two Set-Points available: Homogenization and Casting Temperature
Medium frequency induction heating stirs the melted alloy and leads to a perfect homogeneity
Pulse Stirring Management (PSM™) for an extremely low frequency stirring
Second generator for indipendent heating of the die
Pressure / Flow regulation of water jet
The melting process can be protected with Argon, Nitrogen or Helium
Automatic self-test of vacuum sealings, o-rings, seals and filters
Factory Network Connection: RS232, Ethernet
Troubleshooting: Connecting to an on-line via modem
Oxygen Analyzer: Measurement of oxygen present in the melting chamber
Lid Locking System: Lock chamber (temperature-dependent)
Crucible working capacity
up to 7,5 kg Bronze
9 kg Silver
17 kg Gold
up to 40 kg Bronze
50 kg Silver
90 kg Gold
up to 1500 cc
up to 7000 cc
up to 300 bar
up to 300 bar
Autotest with data report
Monitoring system for data acquisition
Vacuum leakage detector
Gold (Au), Silver (Ag), Copper (Cu), Brass, Bronze, Aluminium (Al) and their alloys