A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COATED METAL PLATE AND EXTERIOR BUILDING MATERIAL
PROBLEM TO BE SOLVED: To provide a coated metal plate for exterior application, which is chromate-free and yet has excellent corrosion resistance in a flat part.SOLUTION: A coated metal plate according to this invention is a chromate-free coated metal plate for exterior applications, which comprises a metal plate, and a coating film that is arranged on the metal plate. The coating film contains 0.2-15% by volume of porous particles as a gloss control agent and further contains 0.2-15% by volume of primary particles as a delustering agent. If R1 (μm) is the number average particle diameter of the gloss control agent, R2 (μm) is the number average particle diameter of the delustering agent, T (μm) is the film thickness of the coating film, σ1 (μm) is the standard deviation of the number-based particle size distribution of the gloss control agent, and σ2 (μm) is the standard deviation of the number-based particle size distribution of the delustering agent, the coated metal plate satisfies the following formula:(R1+2σ1)/T≤0.7; R1≥2.0; 2.0≤(R2+2σ2/)T≤7.0; 13≤T≤20.
【課題】外装用の塗装金属板であって、クロメートフリーでありながら優れた平坦部耐食性を有する塗装金属板を提供する。【解決手段】本発明に係る塗装金属板は、外装用のクロメートフリーの塗装金属板であり、金属板と、前記金属板上に配置される上塗り塗膜とを有する。当該上塗り塗膜は、０．２〜１５体積％の細孔粒子を光沢調整剤として含有し、０．２〜１５体積％の一次粒子を艶消し剤として含有する。光沢調整剤の個数平均粒径をＲ１（μｍ）、艶消し剤の個数平均粒径をＲ２（μｍ）、上塗り塗膜の膜厚をＴ（μｍ）、光沢調整剤の個数粒度分布の標準偏差をσ１（μｍ）、および艶消し剤の個数粒度分布の標準偏差をσ２（μｍ）としたときに、上記塗装金属板は、下記式を満足する。（Ｒ１＋２σ１）／Ｔ≰０．７Ｒ１≧２．０２．０≰（Ｒ２＋２σ２）／Ｔ≰７．０１３≰Ｔ≰２０【選択図】なし
COATED METAL PLATE AND EXTERIOR BUILDING MATERIAL
PROBLEM TO BE SOLVED: To provide a coated metal plate for exterior application, which is chromate-free and yet has excellent corrosion resistance in a flat part.SOLUTION: A coated metal plate according to this invention is a chromate-free coated metal plate for exterior applications, which comprises a metal plate, and a coating film that is arranged on the metal plate. The coating film contains 0.2-15% by volume of porous particles as a gloss control agent and further contains 0.2-15% by volume of primary particles as a delustering agent. If R1 (μm) is the number average particle diameter of the gloss control agent, R2 (μm) is the number average particle diameter of the delustering agent, T (μm) is the film thickness of the coating film, σ1 (μm) is the standard deviation of the number-based particle size distribution of the gloss control agent, and σ2 (μm) is the standard deviation of the number-based particle size distribution of the delustering agent, the coated metal plate satisfies the following formula:(R1+2σ1)/T≤0.7; R1≥2.0; 2.0≤(R2+2σ2/)T≤7.0; 13≤T≤20.
【課題】外装用の塗装金属板であって、クロメートフリーでありながら優れた平坦部耐食性を有する塗装金属板を提供する。【解決手段】本発明に係る塗装金属板は、外装用のクロメートフリーの塗装金属板であり、金属板と、前記金属板上に配置される上塗り塗膜とを有する。当該上塗り塗膜は、０．２〜１５体積％の細孔粒子を光沢調整剤として含有し、０．２〜１５体積％の一次粒子を艶消し剤として含有する。光沢調整剤の個数平均粒径をＲ１（μｍ）、艶消し剤の個数平均粒径をＲ２（μｍ）、上塗り塗膜の膜厚をＴ（μｍ）、光沢調整剤の個数粒度分布の標準偏差をσ１（μｍ）、および艶消し剤の個数粒度分布の標準偏差をσ２（μｍ）としたときに、上記塗装金属板は、下記式を満足する。（Ｒ１＋２σ１）／Ｔ≰０．７Ｒ１≧２．０２．０≰（Ｒ２＋２σ２）／Ｔ≰７．０１３≰Ｔ≰２０【選択図】なし
COATED METAL PLATE AND EXTERIOR BUILDING MATERIAL
塗装金属板および外装建材
HARA TAKETO (author) / YANO HIROKAZU (author) / SAKADO KENJI (author) / TAKAHASHI KAZUHIKO (author)
2015-10-22
Patent
Electronic Resource
Japanese
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden