Method of providing a pattern of apertures and/or cavities in a plate of non-metallic material

PCT No. PCT/NL94/00277 Sec. 371 Date Jul. 7, 1995 Sec. 102(e) Date Jul. 7, 1995 PCT Filed Nov. 8, 1994 PCT Pub. No. WO95/13623 PCT Pub. Date May 18, 1995A method of providing a plurality of cavities and/or apertures in a plate or layer wherein, after the plate or layer has been provided with a mask...

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Hauptverfasser:	DE HAAS, FRANCISCUS C. M, VAN LAARHOVEN, JOHANNUS M. E, LIGTHART, HENRICUS J, FRANCISCUS M. H, VAN BEEK, JOHANNES G, SWINKELS, PETRUS H. W
Format:	Patent
Sprache:	eng
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GRINDING PERFORMING OPERATIONS POLISHING TRANSPORTING
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Beschreibung
Zusammenfassung:	PCT No. PCT/NL94/00277 Sec. 371 Date Jul. 7, 1995 Sec. 102(e) Date Jul. 7, 1995 PCT Filed Nov. 8, 1994 PCT Pub. No. WO95/13623 PCT Pub. Date May 18, 1995A method of providing a plurality of cavities and/or apertures in a plate or layer wherein, after the plate or layer has been provided with a mask having a plurality of apertures arranged in a pattern, at least one jet of abrasive powder particles is moved relative to the plate. On its exposed surface, the mask is provided with a coating which prevents substantial mechanical stresses from being generated in the mask during the process by the jet of powder particles.