2.3.1 Laserstrahlreinigen
In order to make a distinction between the optical laser beams and the treatment method “laser blasting” this method is often called “laser cleaning”.
Cleaning of a surface is performed with the help of a focussed laser with high intensity. The top layer of the surface absorbs the high energy of the laser beam and this leads to vaporization of the top layer.
In general, pulsating lasers are used so that the removal of the top layer is also done in a pulsating manner.
As regards reflecting basic materials, the surface is not considerably heated during the treatment.
This method offers the following advantages: high degree of positioning and metering and precise edge acuity of the surface to be treated as well as a gentle and residue-free removal.
Compared to the conventional blasting method only the low performance per unit of surface, the high demand of devices and the high costs at industrial big projects of corrosion control bring some disadvantages.
- Table of contents
- 1. Fields of application of abrasive blasting technology
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2. Blasting technology
- 2.1 Airless blast cleaning
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2.2 Injection blasting
- 2.2.1 Compressed air blasting (also air blast cleaning or sand blasting)
- 2.2.2 Pressure blasting (injector blasting)
- 2.2.3 Vacuum-compressed-air blasting and vacuum injection blasting
- 2.2.4 Damp blasting
- 2.2.5 Wet blasting
- 2.2.6 Slurry blasting
- 2.2.7 Ice Blasting
- 2.2.8 Water- jetting cleaning and hydro-jetting
- 2.2.9 Wet blasting for fine surface treatment
- 2.2.10 Combination of different blasting methods
- 2.3 Laser cleaning
- 3. Abrasive
- 4. Efficiency assessment of abrasive blasting
- 5. Influence of compressed-air blasting on the surface of the workpiece
- 6. Generation of compressed air
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7. Plants for compressed-air blasting
- 7.1 Small and medium-sized blasting pots
- 7.2 Large blasting pots
- 7.3 Double-chamber blasting pot
- 7.4 Mixing and dosing valve
- 7.5 Hoses, lengths of hoses, couplings
- 7.6 Selection of a blasting pot in considering the wear and tear behaviour
- 7.7 Increased wear and tear at the blasting pot caused by wrong adjustment
- 8. Remote control and emergency shut-downs
- 9. Jet nozzles
- 10. Stationary blasting halls
- 11. Mobile abrasive blasting equipment
- 12. Laws and provisions