Steel sheet for containers and manufacturing method for same

摘要

A steel sheet for containers that has excellent film adhesion qualities, and has; a chemical conversion coating formed by immersing or subjecting to electrolytic treatment a steel sheet in a solution containing Zr ions, F ions, with adhesion amount of 0.1 to 100 mg/m2 for metal Zr and no more than 0.1 mg/m2 for F; and a hydroxyl acid treatment layer formed on the chemical conversion coating, the layer having a C adhesion amount of 0.05 to 50 mg/m2.

主权项

1. A steel sheet for containers providing highly-formed film adhesiveness, having:
a chemical conversion coating which is formed by immersing or electrolytically treating a steel sheet in a solution containing Zr ions, F ions and P ions, the adhesion amount of which is within a range of 4 mg/m2 to 83 mg/m2 as an amount of metal Zr and 0.01 mg/m2 or less as an amount of F and 1 mg/m2 to 45 mg/m2 as an amount of P; and a glycolic acid-treated layer which is formed on the chemical conversion coating, and the adhesion amount of which is within a range of 3 mg/m2 to 45 mg/m2 as an amount of C.