FIELD: physics.
SUBSTANCE: claimed group of inventions relates to welding methods and apparatus used in welding. More particularly, the invention relates to the manufacture of flow meters that measure parameters relating to a flow of liquid or gas. More particularly, the invention relates to methods and apparatus for mounting and sealing transducers in ultrasonic flowmeters. Claimed group of inventions includes welding fixtures for releasably engaging a weldable object and a unit for mounting in the housing a measuring device. Welding fixture for releasably engaging a weldable object comprises: a support body, a receiver coupled to the support body and having an outer surface and an internal chamber adapted to receive the weldable object, and at least one fluid delivery tube disposed along at least a portion of the receiver and configured to supply gas to the outer surface of the receiver.
EFFECT: technical result consists in the possibility of precisely fixing the welded object in place and fastening it in the welding position, and further provides a fluid supply system for delivering an inert gas to a welding location adjacent to the object to be welded, and also enables to transducer body to be properly mounted into a through hole formed in the body of the measuring device, and allow to weld and seal the body in the body of the measuring device.
26 cl, 15 dwg
