JP2006281514A - 放熱性に優れた塗装金属材およびこれを用いた電子機器部品 - Google Patents
放熱性に優れた塗装金属材およびこれを用いた電子機器部品 Download PDFInfo
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
【解決手段】 金属基材の片面もしくは両面に、少なくとも1層の樹脂塗膜が形成されている金属塗装体であって、最外層には、表面に開口した1〜1000nmの細孔を有する多孔質粒子が、最外層の表面から少なくとも一部が露出した状態で含まれており、好ましくはその下層側に、放射性添加剤を含む塗膜層が形成された、放熱性に優れた塗装金属材を開示する。
Description
a×b≧0.42……(1)
a:表面に放熱性塗膜が形成された塗装体の赤外線積分放射率
b:裏面に放熱性塗膜が形成された塗装体の赤外線積分放射率
装置:日本電子社製の「JIR−5500型フーリエ変換赤外分光光度計」及び放射測定ユニット「IRR−200」
測定波長範囲:4.5〜15.4μm
測定温度:供試材の加熱温度を100℃に設定
積算回数:200回
分解能 :16cm−1
KTB(λ,TTB)=0.96×KB(λ,TTB)
式中、KB(λ,TTB)は、波長λ、温度TTB(℃)における黒体の分光放射強度を意味する。
クロメート処理を施した電気亜鉛めっき鋼板(板厚;0.8mm、Cr付着量;20mg/m3を原板として使用し、その片面に下記表1に示す添加剤を配合した塗料(ベース樹脂としてポリエステル系樹脂を使用し、架橋剤としてメラミン樹脂を用いたもの)を塗布した後、焼付け及び乾燥を行なって下層塗膜を形成した。
各供試鋼板の対流・熱伝達性能を評価するため、下記の原理で、同一方向に均一な速度で加熱した供試鋼板の代表温度を計測し、供試鋼板間で相対評価を行なった。
図1に示す如く、同じ寸法の供試鋼板A,Bの片面側を同じ熱量(Q0)で加熱し、反対面に同一温度T0で同一流速(V1)に設定した空気を流す。供試鋼板Aの熱通過性能が供試鋼板Bよりも優れておれば、供試鋼板Aの表面温度TAと供試鋼板Bの表面温度TBの間には「TA<TB」の関係が成立する。図中、ha,hbは供試鋼板A,Bの熱伝達係数、A0は供試鋼板A,Bのマクロ的表面積(即ち、表面に露出した多孔質粒子の細孔面積は無視した表面積で、実験では等しいサイズの供試板を用いたので同じ値である)を表わす。
Q2=5.67×ε0×A0×{[(TA+273)/100]4−[(T0+273)/100]4}
Claims (6)
- 金属基材の片面もしくは両面に、少なくとも1層の塗膜が形成されている塗装金属材であって、最外層には、表面に開口した1〜1000nmの細孔を有する多孔質粒子が、表層側に少なくとも一部が露出した状態で含まれていることを特徴とする放熱性に優れた塗装金属材。
- 前記最外層の層厚(x)が0.5〜4μm、前記多孔質粒子の平均粒径(y)が1〜8μmであり、「x<y」の関係を満たすものである請求項1に記載の塗装金属材。
- 前記最外層の下側に放射性添加剤を含む塗膜層が形成されており、塗装金属材を100℃に加熱したときの赤外線(波長4.5〜15.4μm)の積分放射率が0.6以上である請求項1または2に記載の塗装金属材。
- 表面抵抗が100Ω以下である請求項1〜3のいずれかに記載の塗装金属材。
- 熱源を有する電子機器の筺体用として使用されるものである請求項1〜4のいずれかに記載の塗装金属材。
- 熱源を内蔵する電子機器部品であって、該電子機器部品の外壁の少なくとも一部が、前記請求項1〜5のいずれかに記載の塗装金属材で構成されていることを特徴とする電子機器部品。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005102100A JP4527587B2 (ja) | 2005-03-31 | 2005-03-31 | 放熱性に優れた塗装金属材およびこれを用いた電子機器部品 |
KR1020060021307A KR100764340B1 (ko) | 2005-03-31 | 2006-03-07 | 방열성이 우수한 도장금속재 |
TW095109678A TW200643127A (en) | 2005-03-31 | 2006-03-21 | Coated metal material excellent in radiation properties and electronic device component using it |
CNB2006100716337A CN100441647C (zh) | 2005-03-31 | 2006-03-27 | 散热性优异的涂层金属 |
Applications Claiming Priority (1)
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JP2005102100A JP4527587B2 (ja) | 2005-03-31 | 2005-03-31 | 放熱性に優れた塗装金属材およびこれを用いた電子機器部品 |
Publications (2)
Publication Number | Publication Date |
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JP2006281514A true JP2006281514A (ja) | 2006-10-19 |
JP4527587B2 JP4527587B2 (ja) | 2010-08-18 |
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JP (1) | JP4527587B2 (ja) |
KR (1) | KR100764340B1 (ja) |
CN (1) | CN100441647C (ja) |
TW (1) | TW200643127A (ja) |
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WO2015063866A1 (ja) * | 2013-10-29 | 2015-05-07 | 新日鐵住金株式会社 | 表面処理金属板及び表面処理金属板の製造方法 |
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JP2019145567A (ja) * | 2018-02-16 | 2019-08-29 | 三井化学株式会社 | 金属樹脂接合板、筐体および電子装置 |
JP2019145745A (ja) * | 2018-02-23 | 2019-08-29 | 三井化学株式会社 | 部品及び電子装置 |
JP2019145572A (ja) * | 2018-02-16 | 2019-08-29 | 三井化学株式会社 | 電子部品収納用筐体および電子装置 |
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Also Published As
Publication number | Publication date |
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TW200643127A (en) | 2006-12-16 |
CN100441647C (zh) | 2008-12-10 |
CN1847337A (zh) | 2006-10-18 |
TWI338025B (ja) | 2011-03-01 |
KR20060106666A (ko) | 2006-10-12 |
KR100764340B1 (ko) | 2007-10-05 |
JP4527587B2 (ja) | 2010-08-18 |
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