Steel plate for producing pipe highly resistant to fuel vapor corrosion, pipe using same and method for producing pipe

US9700928B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9700928-B2
Application numberUS-201113814502-A
CountryUS
Kind codeB2
Filing dateAug 4, 2011
Priority dateAug 6, 2010
Publication dateJul 11, 2017
Grant dateJul 11, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Provided are a pipe which exhibits corrosion resistance against vapor of fuel such as gasoline, diesel oil, bioethanol or a biodiesel fuel, a method for manufacturing the pipe, and a steel sheet for manufacturing the pipe. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor includes the steps of; preparing a steel sheet for manufacturing a pipe which is characterized by having a zinc-nickel (Zn—Ni) alloy layer where a nickel content is 4 to 16 at % on at least one surface of the steel sheet; forming the steel sheet for manufacturing a pipe into a tubular shape such that the Zn—Ni alloy layer forms an inner surface of the pipe, and applying bending to the pipe such that the elongation of the bent convex portion generated at the time of bending the pipe falls within 20%. A steel sheet for manufacturing a pipe having excellent corrosion resistance against fuel vapor has a Zn—Ni alloy layer on at least an uppermost surface of a surface thereof which constitutes an inner surface of the pipe, and a nickel content in the Zn—Ni alloy layer is 4 to 16 at %.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor, the method comprising the steps of: preparing a steel sheet for manufacturing a pipe which is characterized by having a zinc-nickel (Zn—Ni) alloy layer where a nickel content is 4 to 16 at % on at least one outermost surface of the steel sheet, a thickness of the zinc-nickel (Zn—Ni) alloy layer being set to 0.5 μm to 10 μm; forming the steel…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Cross-Sectional Technologies · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9700928B2 cover?
Provided are a pipe which exhibits corrosion resistance against vapor of fuel such as gasoline, diesel oil, bioethanol or a biodiesel fuel, a method for manufacturing the pipe, and a steel sheet for manufacturing the pipe. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor includes the steps of; preparing a steel sheet for manufac…
Who is the assignee on this patent?
Tomomori Tatsuo, Yoshioka Koh, Toyo Kohan Co Ltd
What technology area does this patent fall under?
Primary CPC classification B21D51/16. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jul 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).