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

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 【課題】耐腐食性が良好な金属を用いた耐圧容器を安価にて生産する。【解決手段】耐圧容器１０は、凸状のキャップ部２６を有する鋳造製の容器側体２０を構成部品に含む。キャップ部２６は、頂部に湯口部２２を有し、湯口部２２の下流にキャップ終端部２６Ｅを有する。湯口部２２は、コネクタ取付面２２Ａと、コネクタ取付面２２Ａから容器側体２０の内部に貫通する貫通孔２５とを有する。更に本発明による耐圧容器１０は、キャップ部２６の周囲における湯口部肉厚をｔＭ（ｍｍ）、キャップ終端部肉厚をｔｍ（ｍｍ）とした場合に、ｔｍ≧４であって、減厚比ｔＭ／ｔｍが、１≦ｔＭ／ｔｍである。【選択図】図１