Patent ID: 9713840
Date: 2017-07-25
CPC Classifications: B22D,F16L

Claim:
1. A method for manufacturing a pipe with a rib, in which the rib is formed inside a pipe portion of the pipe, the rib includes a rib portion, and the rib portion is formed inside the pipe portion and includes a plurality of bent portions in accordance with bending of the pipe portion, comprising: drawing out molten metal held in a molten metal holding furnace by using a starter, from a surface of the molten metal, and drawing up the molten metal through a shape defining member that defines a sectional shape of the pipe with the rib to be cast; and cooling and solidifying the molten metal that has passed through the shape defining member and been drawn up, wherein the rib connects at least one portion of an inside of the pipe portion and at least one other portion of the inside of the pipe portion, and the plurality of bent portions are formed by moving at least either one of the starter and the shape defining member in a horizontal direction.