| 摘要 |
PROBLEM TO BE SOLVED: To provide a chemical conversion treatment agent which can provide, for example, an aluminum-based metal material with excellent corrosion resistance and moisture resistance, and also can provide the aluminum-based metal material with excellent adhesion to a laminated film, excellent hydrofluoric acid resistance, and excellent alkali resistance.SOLUTION: A chemical conversion treatment agent is provided, wherein (1) the mass concentration of zirconium is 5-5,000 mass ppm, (2) the mass concentration of titanium is 5-5,000 mass ppm, (3) the mass concentration of vanadium is 10-1,000 mass ppm, (4) the mass concentration of a metal stabilizer is 5-5,000 mass ppm, and (5) the pH is 2-6. |
