Cryogenic cutting and cleaning materials

Cryogenic cutting and cleaning materials.



 

  

Cryogenic cutting – cutting materials wherein the cutting tool uses a supersonic jet of liquid nitrogen, emitted from a special nozzle at high pressure.

 

Cryogenic cutting and cleaning

Advantages of the cryogenic cutting

Other types of material cutting: waterjet cutting, laser cutting, plasma cutting, EDM cutting

Other types of cleaning materials: laser cleaning

 



Cryogenic cutting and cleaning:

Cryogenic cutting – cutting materials wherein the cutting tool is used supersonic (up to 3 Mach numbers) the stream of liquid nitrogenhaving a temperature of from -150 to -179 °C, emitted from a special nozzle at high pressure (400 to 4000 kg/cm2).

The mechanism of cryogenic cutting is based on the fact that the jet of liquid nitrogen penetrates into the smallest cracks, there rapidly expands, transforming into a gaseous state at 700 times, thereby increasing the kinetic energy, and breaks off material from the inside.

Cryogenic cutting allows you to cut vertolety and durable materials not available to other types of cutting. The cutting efficiency of the materials depends on the pressure (400 to 4000 kg/cm2), temperature (from 150°to -179 °C) and nozzle distance to the surface.

At low pressure jet of liquid nitrogen only cleans hard-to-remove coatings (paints, corrosion, rust, etc.) with the surface of the material. Therefore, the equipment the cryogenic cutting machine can be used not only for cutting but also for cleaning hard-to-remove coatings from the surfaces of materials, including fragile items. Moreover, with this equipment it is possible to carry out the demetallization products. For example, it is possible to clear the steel from the protective zinc layer without damaging the base metal. In the future it is also expected to replace the sandblast cleaning of metal surfaces at cryogenic as a more environmentally friendly and safe for personnel.

 

Advantages of the cryogenic cutting:

– cryogenic cutting are subjected to almost all types of materialsincluding any of metals, alloys, composites (including metal + ceramic), plastic, wood, silicate glass, food,etc.,

environmentally friendly,

– used nitrogen is not explosive and non-toxic, it is harmless to the environment

high speed cutting

– high quality cutting of thick metal,

the relative safety of the process

– does not create waste and pollution.

 

Other types of cutting materials:

water jet cutting,

– laser cutting,

– plasma cutting,

EDM cutting.

 

Other types of cleaning materials:

laser cleaning.

 

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