FOERFARANDE FOER HOPFOGNING AV ETT ROER MED EN PLAOT MEDELST SPRAENGSVETSNING SAMT EN SPRAENGLADDNING FOER GENOMFOERANDE AV FOERFARANDET

FOERFARANDE FOER HOPFOGNING AV ETT ROER MED EN PLAOT MEDELST SPRAENGSVETSNING SAMT EN SPRAENGLADDNING FOER GENOMFOERANDE AV FOERFARANDET

The explosion is arranged so its speed decreases in the direction of propagation, and pref. in a stepwise manner. The decrease in detonation speed is pref. achieved by reducing the density of the explosive in the direction of propagation, esp. using a stepwise decrease. A weld of very high quality i...

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Bibliographische Detailangaben
Hauptverfasser: PALONEN PEKKA, KETTUNEN PENTTI OLAVI, LEPISTOE TOIVO KALEVI, AUTIO JAAKKO PONTUS
Format: Patent
Sprache:fin
Schlagworte:
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Zusammenfassung:The explosion is arranged so its speed decreases in the direction of propagation, and pref. in a stepwise manner. The decrease in detonation speed is pref. achieved by reducing the density of the explosive in the direction of propagation, esp. using a stepwise decrease. A weld of very high quality is achieved for tubes with thick walls, so no leakage occurs in the heat exchanger, but excessive distortion of the tube during welding is avoided.