Clad material

US10967609B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10967609-B2
Application numberUS-201815925876-A
CountryUS
Kind codeB2
Filing dateMar 20, 2018
Priority dateAug 9, 2017
Publication dateApr 6, 2021
Grant dateApr 6, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A clad material includes a first layer made of stainless steel and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer. In the clad material, a grain size of the second layer measured by a comparison method of JIS H 0501 is 0.150 mm or less.

First claim

Opening claim text (preview).

What is claimed is: 1. A clad material comprising: a first layer made of stainless steel; and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer and interatomic bonding by diffusion between the stainless steel and the Cu or the Cu alloy, wherein a grain size of the second layer made of Cu or the Cu alloy measured by a comparison method of JIS H 0501 is 0.076 mm or more and 0.150 mm or less and the Cu alloy contains 0.05 mass % or more and 0.15 mass % or less of Zr, or contains 4 ppm or more and 55 ppm or less of Ti, and 2 ppm or more and 12 ppm or less of S and 2 ppm or more and 30 ppm or less of O. 2. The clad material according to claim 1 , wherein the grain size of the second layer is 0.130 mm or less. 3. The clad material according to claim 1 , further comprising a third layer made of stainless steel and roll-bonded to a side of the second layer opposite to the first layer. 4. The clad material according to claim 1 , wherein the stainless steel is austenitic stainless steel.

Assignees

Inventors

Classifications

  • Arrangements for heating · CPC title

  • containing silicon · CPC title

  • B32B15/015Primary

    the said other metal being copper or nickel or an alloy thereof · CPC title

  • by means of a rolling mill · CPC title

  • B32B15/013Primary

    one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium · CPC title

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Frequently asked questions

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What does patent US10967609B2 cover?
A clad material includes a first layer made of stainless steel and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer. In the clad material, a grain size of the second layer measured by a comparison method of JIS H 0501 is 0.150 mm or less.
Who is the assignee on this patent?
Hitachi Metals Ltd
What technology area does this patent fall under?
Primary CPC classification B32B15/015. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Apr 06 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).