PRESSURE VESSEL

• Main Authors: NISHIMOTO TADAHIRO, YOSHIDA KEIGO, MIYADERA SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 29.11.2018
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CYLINDERS; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINEERING ELEMENTS AND UNITS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PISTONS; SEALINGS; STORING OF DISTRIBUTING GASES OR LIQUIDS; THERMAL INSULATION IN GENERAL; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

PROBLEM TO BE SOLVED: To provide a low-cost pressure vessel suppressed in corrosion of its mouthpiece.SOLUTION: A pressure vessel 1 includes: a vessel body 10 having a cylindrical straight barrel part 14 and a dome part 16 mounted on both ends of the straight barrel part 14 and becoming narrower as separating from the straight barrel part 14; and a metallic mouthpiece 12 mounted at the tip end part of the dome part 16. The vessel body 10 includes: a resin liner 18; and a reinforced layer 20 mounted on the outside of the liner 18 and comprising fiber-reinforced resin material containing reinforced fiber and matrix resin. A fiber volume content of the reinforced fibers in the reinforced layer 20 in the dome part 16 is 45 vol.% or more and 55 vol.% or less, and a fiber volume content of the reinforced fiber in the reinforced layer 20 in the straight barrel part 14 is more than 55 vol.% and 65 vol.% or less.SELECTED DRAWING: Figure 1 【課題】口金の腐食が抑制された低コストな圧力容器を提供することを目的とする。【解決手段】円筒状の直胴部１４、及び直胴部１４の両端に設けられ、直胴部１４から離れるにつれて窄んだドーム部１６を有する容器本体１０と、ドーム部１６の先端部に設けられた金属製の口金１２とを備え、容器本体１０は、樹脂製のライナ１８と、ライナ１８の外側に設けられ、強化繊維及びマトリクス樹脂を含有する繊維強化樹脂材料からなる補強層２０とを含み、ドーム部１６における補強層２０中の強化繊維の繊維体積含有率が４５体積％以上５５体積％以下であり、直胴部１４における補強層２０中の強化繊維の繊維体積含有率が５５体積％超６５体積％以下である、圧力容器１。【選択図】図１