JP5410646B1 - シャーシおよびシャーシの製造方法 - Google Patents
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- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/22—Ferrous alloys and copper or alloys thereof
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2251/00—Treating composite or clad material
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
次に、図2、図3、図5〜図10を参照して、本発明の効果を確認するために行った放熱性能の測定と機械的強度の測定とについて説明する。なお、特段の記載がない限り、「厚み」や「板厚」は平均値を意図する。
放熱性能の評価のため、実施例1〜13のそれぞれのシャーシ2と、比較例1〜6のそれぞれの板材について、その表面上に発熱源を配置した場合の温度分布を観察した。具体的には、図6に示すように、長手方向(X方向)に100mmの長さL1を有するとともに、短手方向(Y方向)に50mmの長さL2を有する実施例1〜13のそれぞれのシャーシ2と比較例1〜6のそれぞれの板材とを準備した。そして、本実施形態の発熱源であるCPU31(図2参照)に対応するヒータ31aを、それぞれのシャーシ2や板材のZ2側の下面上に張り付けた。このヒータ31aは、X方向およびY方向に10mmの長さL3を有している。なお、比較例4および比較例6では、ヒータ31aをZ1側の上面とは反対側のZ2側の下面に張り付けた。
また、機械的強度の評価のために、実施例1〜13のそれぞれのシャーシ2と比較例1〜6のそれぞれの板材について、応力ひずみ線図を測定して、0.2%の永久ひずみが生じる際の応力(0.2%耐力)を求めた。
2、402 シャーシ
21 SUS層(第1層)
22 Cu層(第2層)
23 SUS層(第3層)
31 CPU(電子部品)
100、300 携帯機器
304 電池(電子部品)
402b Sn系メッキ層(表面金属層)
502b Ni層(表面金属層)
Claims (20)
- オーステナイト系ステンレスにより形成される第1層(21)と、CuまたはCu合金により形成され、前記第1層に積層される第2層(22)と、オーステナイト系ステンレスにより形成され、前記第2層の前記第1層とは反対側に積層される第3層(23)とが圧延接合されたクラッド材からなり、前記第2層の厚みは、前記クラッド材の厚みの15%以上である、シャーシ。
- 前記第2層の厚みは、前記クラッド材の厚みの20%以上である、請求項1に記載のシャーシ。
- 前記第2層の厚みは、前記クラッド材の厚みの30%以上である、請求項2に記載のシャーシ。
- 前記第2層の厚みは、前記クラッド材の厚みの60%以下である、請求項1に記載のシャーシ。
- 前記第2層の厚みは、前記クラッド材の厚みの50%以下である、請求項4に記載のシャーシ。
- 前記第1層および前記第3層は、オーステナイト系ステンレスにより形成されており、前記第3層の厚みの平均値は、前記第1層の厚みの平均値の95%以上105%以下である、請求項1に記載のシャーシ。
- 前記クラッド材の厚みは、0.3mm以下である、請求項1に記載のシャーシ。
- 前記第1層および前記第3層は、オーステナイト系ステンレスにより形成され、前記第2層は、Cuにより形成される、請求項1に記載のシャーシ。
- 前記第1層および前記第3層は、SUS304により形成される、請求項8に記載のシャーシ。
- 前記第1層および前記第3層は、SUS301により形成される、請求項8に記載のシャーシ。
- 放熱を伴う電子部品(1)を内在する携帯機器(100)の前記シャーシとして用いられる、請求項1に記載のシャーシ。
- 前記シャーシに、放熱を伴う前記電子部品が接触している、請求項11に記載のシャーシ。
- 前記シャーシの少なくとも一部分に対して、表面金属層(402b、502b)を有している、請求項1に記載のシャーシ。
- 前記シャーシの略全面に対して、前記表面金属層を有している、請求項13に記載のシャーシ。
- 前記シャーシの少なくとも一部分に対して、メッキによる前記表面金属層を有している、請求項13に記載のシャーシ。
- 前記シャーシの少なくとも一部分に対して、圧延接合による前記表面金属層を有している、請求項13に記載のシャーシ。
- 前記表面金属層(402b)は、SnまたはSn合金からなる、請求項13に記載のシャーシ。
- 前記表面金属層(502b)は、NiまたはNi合金からなる、請求項13に記載のシャーシ。
- オーステナイト系ステンレスにより形成される第1層(21)と、CuまたはCu合金により形成される第2層(22)と、オーステナイト系ステンレスにより形成される第3層(23)とがこの順番で積層された状態で、圧延接合により、前記第2層の厚みがクラッド材(102)の厚みの15%以上になるように前記クラッド材を形成する工程を備え、
前記クラッド材を形成する工程は、前記第1層と前記第2層と前記第3層とを積層させた状態で圧延する工程と、前記クラッド材を拡散焼鈍する工程とを含む、シャーシの製造方法。 - 前記第1層と前記第2層と前記第3層とを積層させた状態で圧延する工程と、前記クラッド材を拡散焼鈍する工程とは、交互に複数回行われる、請求項19に記載のシャーシの製造方法。
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JP2013541140A JP5410646B1 (ja) | 2012-07-10 | 2013-07-01 | シャーシおよびシャーシの製造方法 |
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JP2012154627 | 2012-07-10 | ||
JP2012154627 | 2012-07-10 | ||
JP2013541140A JP5410646B1 (ja) | 2012-07-10 | 2013-07-01 | シャーシおよびシャーシの製造方法 |
PCT/JP2013/068031 WO2014010455A1 (ja) | 2012-07-10 | 2013-07-01 | シャーシおよびシャーシの製造方法 |
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JP5410646B1 true JP5410646B1 (ja) | 2014-02-05 |
JPWO2014010455A1 JPWO2014010455A1 (ja) | 2016-06-23 |
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US20150190985A1 (en) | 2015-07-09 |
CN103858529A (zh) | 2014-06-11 |
CN103858529B (zh) | 2016-09-07 |
KR20140046083A (ko) | 2014-04-17 |
US9421741B2 (en) | 2016-08-23 |
TW201414402A (zh) | 2014-04-01 |
WO2014010455A1 (ja) | 2014-01-16 |
JPWO2014010455A1 (ja) | 2016-06-23 |
KR101418706B1 (ko) | 2014-07-10 |
TWI576035B (zh) | 2017-03-21 |
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