To provide a casting method by which a casting provided with a fine hollowing space and required pressure-resistance, gastightness can be cast with a constant quality.
This casting method 1 is provided with a first inserting hole piercing process S1 and a second inserting hole piercing process S2 for piercing the inserting holes for inserting metallic pipe into a sand core: a metallic pipe fixing process S3 for fixing by inserting the one end part and the other end part of metallic pipe into the pierced first inserting hole and second inserting hole: a sand core holding process S4 for holding by inserting the sand core into a mold cavity: a casting process S5 for casting by filling up molten metal into the mold cavity held with the sand core: a solidifying process S6 for solidifying the filled-up molten metal: a separating mold process S7 for separating a cylinder from the mold: a sand core collapsing removal process S8 for removing the sand core from the cylinder by collapsing: and a cut-off process S9 for cutting off the projecting metallic pipe from the cylinder.
FURUKAWA HIDEKI
OZEKI AKIRA
