Coated Steel Sheet, Finished Product, Panel for Use in Thin Television Sets, and Method for Manufacturing Coated Steel Sheet
    7.
    发明申请
    Coated Steel Sheet, Finished Product, Panel for Use in Thin Television Sets, and Method for Manufacturing Coated Steel Sheet 审中-公开
    涂层钢板,成品,薄型电视机使用面板以及涂装钢板的制造方法

    公开(公告)号:US20090011274A1

    公开(公告)日:2009-01-08

    申请号:US12224351

    申请日:2007-03-02

    IPC分类号: B32B15/09 C23C22/78

    摘要: A coated steel sheet that has excellent bending workability, press formability, film adhesiveness after processing, solvent resistance, chemical resistance, stain resistance, weather resistance, electrical conductivity, and corrosion resistance, good surface appearance, and sufficient film hardness is provided. The coated steel sheet is produced by successively forming a galvanized layer and a chemical conversion coating free from chromium on both faces of a steel sheet, and forming a monolayer film on the chemical conversion coating at one face of the steel sheet. The monolayer film contains a polyester resin cured with a cross-linker and resin particles. The resin particles have an average particle size in the range of 3 to 40 μm, a glass transition temperature in the range of 70° C. to 200° C., and hardness higher than that of the polyester resin.

    摘要翻译: 提供了具有优异的弯曲加工性,冲压成型性,加工后的膜粘合性,耐溶剂性,耐化学性,耐污性,耐候性,导电性和耐腐蚀性,良好的表面外观和足够的膜硬度的涂层钢板。 通过在钢板的两面依次形成镀锌层和不含铬的化学转化涂层,在钢板的一面的化学转化膜上形成单层膜,制造被覆钢板。 单层膜含有用交联剂和树脂颗粒固化的聚酯树脂。 树脂粒子的平均粒径为3〜40μm,玻璃化转变温度为70〜200℃,硬度比聚酯树脂高。