Patent ID: 11860081
Assignee: MAZDA MOTOR CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A corrosion resistance test method for a coated metal material that includes a metal base and a surface treatment film provided on the metal base, the method comprising the steps of:
disposing one or more water-containing material holders each holding a water-containing material to be in contact with the surface treatment film and one or more electrodes to be in contact with the water-containing material contained in the one water-containing material holder or in each of the water-containing material holders, and electrically connecting, with an external circuit, between the one electrode and the metal base, or between the electrodes; and
supplying a current between the one electrode and the metal base, or between at least one of the electrodes and at least one of the other electrodes, as an anode and a cathode, respectively from a current supplier provided on the external circuit to bring corrosion of the coated metal material to progress, wherein
the water-containing material comprises water, an electrolyte material, and kaolinite, and
the content of the kaolinite in the water-containing material is 38.8 mass % or more to 44.3 mass % or less.