HIGH PRESSURE GAS CONTAINER AND PRODUCTION METHOD THEREFOR
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United States of America Patent
Stats
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N/A
Issued Date -
Jan 4, 2024
app pub date -
Nov 2, 2021
filing date -
Nov 10, 2020
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
To alleviate stress exerted on a thread portion of a high pressure gas container including a metallic container to prevent fatigue fracture, there is provided a high pressure gas container comprising a metallic container, wherein the metallic container includes: a metallic cylinder; a female thread portion on an inner peripheral surface of the metallic cylinder at at least one end; and a lid having, on an outer peripheral surface, a male thread portion configured to screw into the female thread portion, and a maximum value of residual compressive stress at a position of 0.4 mm in a depth direction from a plurality of thread bottoms of the female thread portion and the male thread portion is 100 MPa or more, less than or equal to tensile strength of a material of the metallic cylinder, and less than or equal to tensile strength of a material of the lid.
First Claim
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