| 摘要 |
PROBLEM TO BE SOLVED: To provide a method that can appropriately evaluate the peeling resistance of a coating film over a bent part of a coating stainless steel plate.SOLUTION: An ultraviolet ray is applied with a total irradiance of 100 MJ/mor more to a coating film over a bent part. After that, salt water is sprayed to the bent part from the coating film side, and the coating film over the bent part is dried and is left as it is under an atmosphere with a relative humidity of 80% or higher for at least one hour. Further, the peeling condition of the coating film over the bent part is evaluated.SELECTED DRAWING: None |
