BALTiCOLD SPRAY / TECHNOLOGY
Low-pressure cold spray accelerates solid powder particles in a gas stream. On a suitable prepared surface, particle impact builds a metal coating.
02 / THE TECHNOLOGY
Solid particles. New possibilities.
A high-speed stream of solid powder particles builds a coating on a prepared surface. The metal bonds through impact, rather than melting.
Low-pressure cold spray uses compressed air, an electric gas heater and a de Laval nozzle to accelerate particles. It opens a practical route to local repair and functional surfaces, with less melting-related thermal impact.
Where are the limits?INSIDE LOW-PRESSURE COLD SPRAY
Swipe the diagram to follow the complete process →
Compressed air flows from the compressor into the system.
The heating element transfers energy to the gas.
The nozzle converts gas energy into a high-speed stream. Powder enters downstream of the throat in this schematic.
The gas heats and accelerates solid particles. Suitable particles bond on impact and build the coating.
Illustrative flow, not a scale or speed simulation. Inlet position depends on nozzle design. Gas temperature is not particle temperature; the powder is not melted. Bonding depends on the powder, substrate and process conditions.
Put material where it is needed.
Explore conductive and protective layers.
Validate the powder, surface and result together.
UNDERSTAND THE VALUES
The powder is deposited in the solid state. It is not melted to form the coating. The gas is heated, and the component can still become warm during spraying.
The CSM specifications give a gas temperature at the nozzle inlet of 200–600 °C. This value is not the particle temperature or the temperature of your component.
Powder composition, particle characteristics, surface preparation, nozzle access and the selected settings work together. A compatible metal name alone does not establish a workable coating.
For the CSM range, plan around 5–8 bar operating pressure, 9 bar maximum inlet pressure and 0.4 m³/min compressed air, then verify the delivered air under operating load.
APPLICATION FIRST
A PROMISING START
CHECK BEFORE COMMITTING
Specification basis: the supplied CSM360, CSM270 and CSM108.2 equipment documents. The maximum inlet pressure is confirmed as 9 bar. Evaluate application-specific performance through a representative trial.