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    • 3. 发明授权
    • Chemical conversion treatment solution for a steel material and chemical conversion treatment method
    • 钢材化学转化处理液和化学转化处理方法
    • US08535456B2
    • 2013-09-17
    • US13004678
    • 2011-01-11
    • Hitoshi IshiiYasuhiko Nagashima
    • Hitoshi IshiiYasuhiko Nagashima
    • C23C22/34C23C22/00
    • C23C22/34C25D13/20
    • A chemical conversion treatment solution for a steel material is provided. The solution is an acidic aqueous solution of pH 3 to 5 containing 50 to 500 ppm by weight of zirconium fluoride complex in terms of Zr, 5 to 50 ppm by weight of free fluorine, and 5 to 30% by weight in relation to Zr of polyethyleneimine having a weight average molecular weight of 300 to 10,000, a molar ratio of the primary amino group of at least 30%, and a molar ratio of the tertiary amino group of at least 15% in relation to the total amino group content. A method for chemical conversion treatment is also provided. This invention realizes excellent coating adhesion and corrosion resistance after the coating, as well as improved throwing power in the coating, and in particular, in the electrodeposition coating of a steel material.
    • 提供了一种用于钢材的化学转化处理溶液。 该溶液是pH3〜5的酸性水溶液,其以Zr计为50〜500重量ppm的氟化锆配合物,5〜50重量ppm的游离氟,相对于Zr为5〜30重量% 重均分子量为300〜10000,伯氨基的摩尔比为30%以上,叔氨基的摩尔比为15%以上的聚氨基乙烯与总氨基含量相关。 还提供了一种化学转化处理方法。 本发明实现了涂层之后优异的涂层附着力和耐腐蚀性,以及改善涂层的抛光力,特别是在钢材的电沉积涂层中。
    • 5. 发明申请
    • CHEMICAL CONVERSION TREATMENT SOLUTION FOR A STEEL MATERIAL AND CHEMICAL CONVERSION TREATMENT METHOD
    • 化学转化处理方法钢材和化学转化处理方法
    • US20110100830A1
    • 2011-05-05
    • US13004678
    • 2011-01-11
    • Hitoshi IshiiYasuhiko Nagashima
    • Hitoshi IshiiYasuhiko Nagashima
    • C25D3/56
    • C23C22/34C25D13/20
    • A chemical conversion treatment solution for a steel material is provided. The solution is an acidic aqueous solution of pH 3 to 5 containing 50 to 500 ppm by weight of zirconium fluoride complex in terms of Zr, 5 to 50 ppm by weight of free fluorine, and 5 to 30% by weight in relation to Zr of polyethyleneimine having a weight average molecular weight of 300 to 10,000, a molar ratio of the primary amino group of at least 30%, and a molar ratio of the tertiary amino group of at least 15% in relation to the total amino group content. A method for chemical conversion treatment is also provided. This invention realizes excellent coating adhesion and corrosion resistance after the coating, as well as improved throwing power in the coating, and in particular, in the electrodeposition coating of a steel material.
    • 提供了一种用于钢材的化学转化处理溶液。 该溶液是pH3〜5的酸性水溶液,其以Zr计为50〜500重量ppm的氟化锆配合物,5〜50重量ppm的游离氟,相对于Zr为5〜30重量% 重均分子量为300〜10000,伯氨基的摩尔比为30%以上,叔氨基的摩尔比为15%以上的聚氨基乙烯与总氨基含量相关。 还提供了一种化学转化处理方法。 本发明实现了涂层之后优异的涂层附着力和耐腐蚀性,以及改善涂层的抛光力,特别是在钢材的电沉积涂层中。