LANCE PIPE, DEGASIFICATION EQUIPMENT, CONTAINER WITH DEGASIFICATION EQUIPMENT AND WATERSHOOT WITH DEGASIFICATION EQUIPMENT

摘要

A lance pipe, degasification equipment, container with degasification equipment and watershoot with degasification equipment structured so as to attain efficient degasification of molten metal. There is provided lance pipe (1) for blowing an insoluble gas into molten metal to thereby attain degasification thereof, comprising metal-made pipe main body (10) and coating material (20) of porous refractory covering the pipe main body (10), wherein the pipe main body (10) at its side wall is provided with gas outflow hole (16) covered with the coating material (20).