PRESSURE-RESISTANT CONTAINER, CASTING MOLD, CONTAINER SIDE BODY, AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To inexpensively produce a pressure-resistant container using metal with excellent corrosion resistance.SOLUTION: A pressure-resistant container 10 includes cast container side bodies 20 each having a projecting cap part 26 as a constituent component. The cap part 26 has a sprue part 22 at an apex, and has a cap terminal end 26E downstream the sprue part 22. The sprue part 22 has a connector attaching surface 22A and a through-hole 25 penetrating from the connector attaching surface 22A to the inside of the container side bodies 20. Furthermore, the pressure-resistant container 10 according to the present invention has tm≥4 when a sprue part wall thickness and a cap terminal end wall thickness around the cap part 26 are tM(mm) and tm(mm) respectively, and a thickness reduction ratio tM/tm is 1≤tM/tm.SELECTED DRAWING: Figure 1