| 摘要 |
The invention relates to a method and to a spraying device for applying a surface treatment agent, wherein the steps of cooling the casting mold and applying a release agent can be performed in only one method step. For this purpose, according to the invention, the spraying device comprises a liquid pressure pump between a surface treatment agent mixing station and a spraying apparatus, wherein the pressure of the surface treatment agent is increased to at least 13 bar, preferably 24 bar, by means of the liquid pressure pump. Thus the Leidenfrost effect can be avoided, because outlet speeds are achieved that lead to the vapor buffer being penetrated, and also for hot casting molds, to a cooling effect and wetting with surface treatment agent being achieved. |
