VERFAHREN ZUR MIKROREINIGUNG EINES TRÄGERS UND VORRICHTUNG ZUR DURCHFÜHRUNG DESVERFAHRENS

VERFAHREN ZUR MIKROREINIGUNG EINES TRÄGERS UND VORRICHTUNG ZUR DURCHFÜHRUNG DESVERFAHRENS

PCT No. PCT/FR92/01177 Sec. 371 Date Jun. 9, 1994 Sec. 102(e) Date Jun. 9, 1994 PCT Filed Dec. 11, 1992 PCT Pub. No. WO93/11908 PCT Pub. Date Jun. 24, 1993In performing micro-cleaning and micro-blasting, a dry micro-cleaning abrasive powder is sprayed having a very small grain size. This enables hig...

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Bibliographische Detailangaben
1. Verfasser: DIAT, CHRISTIAN, VIGNEUX-DE-BRETAGNE, FR
Format: Patent
Sprache:ger
Schlagworte:
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
GRINDING
PERFORMING OPERATIONS
POLISHING
TRANSPORTING
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Zusammenfassung:PCT No. PCT/FR92/01177 Sec. 371 Date Jun. 9, 1994 Sec. 102(e) Date Jun. 9, 1994 PCT Filed Dec. 11, 1992 PCT Pub. No. WO93/11908 PCT Pub. Date Jun. 24, 1993In performing micro-cleaning and micro-blasting, a dry micro-cleaning abrasive powder is sprayed having a very small grain size. This enables high cleaning speeds to be reconciled with exceptionally fine blasting in order to remove dirty stains and encrusted deposits from valuable, delicate, or fragile medium as is the case when having to blast off pollutants and pollution that become stuck to the surfaces of monuments and buildings. Jets of compressed air charged with fine abrasive particles having grain sizes of less than 200 micrometers can also be sprayed towards the surface. The jets are emitted from nozzles at high speeds so that they sweep the surface with at least ten jets, each of which has a cross section lying in the range of 400 micrometers to 4 millimeters, so that very low kinetic energy is imparted to the surface.