{
  "$type": "site.standard.document",
  "description": "Provided is a film forming method of a corrosion resistant film having a corrosion resistance under acidic atmosphere and a corrosion resistant member on which the corrosion resistant film is coated. The film forming method of the corrosion resistant film includes: bringing a substrate made of…",
  "path": "/patents/1301740",
  "publishedAt": "2021-10-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C09D1/00",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "Provided is a film forming method of a corrosion resistant film having a corrosion resistance under acidic atmosphere and a corrosion resistant member on which the corrosion resistant film is coated. The film forming method of the corrosion resistant film includes: bringing a substrate made of aluminum into contact with an aqueous solution containing sulfate ions and fluoride ions; and heating the substrate to boil the aqueous solution on a surface of the substrate and forming a corrosion resistant film containing at least oxygen, fluorine, and sulfur in the aluminum derived from the substrate on the surface of the substrate.",
  "title": "FILM FORMING METHOD OF CORROSION RESISTANT FILM, CORROSION RESISTANT MEMBER ON WHICH CORROSION RESISTANT FILM IS FORMED, HEAT EXCHANGER, AND FUEL CELL SYSTEM"
}