Device for centering and clamping tubular articles, comprising means regulating the flow rate of the test gas of oxygen content

摘要

Device for centering and squeeze tubular parts comprising means of control of gas flow in order to control the oxygen content. The present invention relates to a device for centralising and squeeze tubular parts, preferably steel, alloy whose ends are positioned against one another to be welded pipe and form a kind of "pipeline".The present invention comprises: means for centralizing and tighten the two tubular parts to be soldered, optionally means to define a sealed chamber division inert in the plane of the gasket, and means of distribution of inert gas to create an atmosphere of protection in the plane of the joint.The device of the present invention also comprises means for regulating the flow rate of inert gas and / or the supply pressure of the inert gas as a function of the content of ~ 2 ~ measured in the protective atmosphere and / or the pressure measured within the atmosphere.In order to keep the level of the ~ 2 ~ in the atmosphere below a value of a predetermined level of alarm and / or the pressure of the atmosphere below a value of alarm level predetermined.