| 摘要 |
PROBLEM TO BE SOLVED: To obtain treatment quality as expected, maintain stability of treatment quality, and generate a stable flame which is not affected by outside air temperature by causing a content of a surface modification component in a mixed composition that gushes from a tip nozzle to be equal to or substantially equal to a content in a liquid phase area in a storage container which is set at a constant ratio suitable for modification treatment.SOLUTION: A flame surface treatment device includes an injection nozzle 50a for jetting a mixed composition, a mixed composition passage 60 for introducing a liquid mixed composition to the injection nozzle 50a, and a cylindrical tip nozzle 70. A flame generated by the combustion of the mixed composition that gushes from the tip nozzle 70 is caused to come into contact with an object to be treated and the object to be treated is subjected to surface treatment. The mixed composition passage 60 includes a heating region Z for preheating the liquid mixed composition that passes through the mixed composition passage 60. Combustion heat of the flame is used for heating the heating region Z. |
