| 摘要 |
PROBLEM TO BE SOLVED: To enable easily and accurately providing a heat insulation structure of an engine combustion chamber component having a heat insulation layer which prevents generation of a crack and peeling by absorbing a difference with respect to a thermal expansion coefficient of a base material of an engine component and which can prevent penetration of fuel.SOLUTION: A heat insulation structure in which a heat insulation layer is formed on a surface of a base material of a component constituting an engine combustion chamber, includes the steps of preparing a resin film 14 having characteristics of a thermal deformation temperature of 160°C or less and a tensile fracture elongation of 2% or more, and applying mold lubricant containing anti-gasoline resin to the film 14 or sequentially applying mold lubricant and anti-gasoline resin to the film 14. Then, paint 11a containing silicone resin is applied to a surface of the film 14 on which the mold lubricant or the anti-gasoline resin has been applied, and the paint 11a is adhered by vacuum molding, pressure forming, or vacuum pressure forming, and subsequently the film 14 is released from a mold. |
