METHOD FOR ELECTROHYDRAULICALLY PRESSING-IN TUBES

FIELD: metal working by pulse pressure, possibly electrohydraulic expansion of tubes in tube plates of heat exchangers, sizing tubular blanks and vessels. SUBSTANCE: method comprises steps of using electric pulse charge created between high-voltage and ground electrodes arranged in water-filled tube...

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Bibliographische Detailangaben
Hauptverfasser:	FILATOV G.P, ZHUCHKOV A.I, TARAKANOVSKIJ EH.N, KURETS V.I, ZINOV'EV N.T
Format:	Patent
Sprache:	eng ; rus
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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Beschreibung
Zusammenfassung:	FIELD: metal working by pulse pressure, possibly electrohydraulic expansion of tubes in tube plates of heat exchangers, sizing tubular blanks and vessels. SUBSTANCE: method comprises steps of using electric pulse charge created between high-voltage and ground electrodes arranged in water-filled tube; pressing in tube at applying to high-voltage electrode several pulses whose number at preset energy of unit pulse is determined according to given relation. It provides lowered energy level of unit pulse. EFFECT: lowered mass and dimension, simplified design of apparatus, enhanced quality of joints. 1 dwg, 1 ex, 1 tbl