METHOD OF DETERMINATION OF TENDENCY TO COOLING CRACKS

摘要

FIELD: welding, and namely, methods of estimation of tendency to cooling cracks of welded joints caused by hydrogen effects. SUBSTANCE: a "pencil" specimen and specimens welded by different methods are placed in a vessel with packing liquid, for example, glycerin, the diameters of bubbles of diffusion-mobile hydrogen liberated on the surface of welded joints are compared, the magnitude of secondary stresses is determined by means of them, and conclusion is made on tendency of welded joints to cooling cracks. EFFECT: facilitated procedure. 1 tbl