APPARATUS FOR EXPLOSION OF FORMING REINFORCING MEMBERS Russian patent published in 1998 - IPC

FIELD: machine engineering, namely, apparatuses for explosion forming of fillets of reinforcing cylindrical couplings of welded joints of pipelines. SUBSTANCE: apparatus is in the form of half-ring elongated housing with semicircle cross section filled with explosion matter and provided with detonating cord. Shock absorbing gasket is arranged on working surface of housing, its remaining surface is covered by screen. Such apparatus allows to make fillets of any size for reinforcing cylindrical coupling of welded joints of oil and gas pipelines from tubular blanks of any type, dimension and wall thickness. EFFECT: enhanced efficiency due to short time period for making fillets directly in field at performing emergency-repairing operations. 2 dwg