SEAMLESS LPG CYLINDER AND A MANUFACTURING APPARATUS THEREOF, CAPABLE OF EASILY MANUFACTURING A HOLLOW CYLINDER BY PRESSING AND DRAWING

摘要

PURPOSE: A seamless LPG cylinder and a manufacturing apparatus thereof are provided to improve the economical efficiency by consecutively two pressing works with one mold and consecutively executing two drawing works by using one drawing mold.;CONSTITUTION: A manufacturing apparatus of a seamless LPG cylinder is composed of an aluminum plate, a first fixed molding frame(110), a press(100), a drawing device, a necking device, a surface welding device, a heat treating device, and a tapping device. The aluminum plate is put on the first fixed molding frame. The press is composed of first and second molds(120,130). The drawing device has a third mold. The necking device makes the neck of a cylinder(20). The surface welding device forms a protector protecting an opening/closing valve and a skirt holding the cylinder at the bottom.;COPYRIGHT KIPO 2010