Cold Spray Technology
The full name of the cold air power cold spray coating technology, high-pressure gas pipe produced by scaling supersonic flow, the particles from the gas stream is fed axially through accelerated to crash completely solid substrate to form a coating.
The cold spray technology features, It is mainly used with a plastic coating material, such as pure metals, metal alloys, plastics and composites, especially due to its low heat, the advantage of substantially non-oxidizing, suitable for temperature sensitive materials (nm, a non- Jing et), sensitive to oxidation (cu, ti, etc.) and sensitive (carbide composite material) of a phase change material of low stress coatings, and the compressive stress, thicker coatings favor deposition and powder may recycling main factor
affect the flight speed of the particle pressure and preheat temperature following:
Zoom tube geometry
working gas
particle size and density of
working gas is generally compressed air, the gas pressure is generally 1.5-3.5 mpa, the gas pressure, the greater the particle velocity. preheating temperature is usually 100 ℃-600℃, the higher the preheating temperature, the greater the speed of the particles obtained.
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