||Effect of Oil Component on Hardness of Heat Curing Oil Film in Solid State
The heat curing oil film method using thermosetting property oil film is a new oil film method. The components of the oil paste in the heat curing oil film method are Silicone, Titanium dioxide, Oleic acid and Hardener. The heat curing oil film method, in which not only the plane flow pattern in wall surface but also oil film thickness of the steady flow can be measured, is developed by author. The heat curing oil film method is a very useful method for visualization of the steady air flow. The oil paste in the heat curing oil film method has been hardened with time from the sol to the gel by the hardener. The hardness of the heat curing oil film in the gel condition is measured by a rubber hardness meter and the effect of oil component on the hardness of the heat curing oil film in solid state is investigated in this paper.