| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily manufacture a temperature adjustable hollow face structural body at a low cost by integrally forming a temperature adjusting fluid passing hole in the inside. SOLUTION: A mold 6 having a gas channel forming recess part 5 forming a gas channel is used along the formation position of a temperature adjusting fluid passing hole 1. Next, a molten synthetic resin is injected in the mold in a prescribed amount and at a prescribed pressure. Immediately after injection or after passage of a minute time, pressurized gas is press-fitted in the synthetic resin of the recess 5 at the prescribed pressure. Thereafter the prescribed time gas pressure is maintained, and after cooling, the pressurized gas of a molding inside is discharged. Thereby a passing hole 1 is integrally formed as a hollow part left in the invasion route of the pressurized gas. Thereby structure is simple, its manufacture is easy and it can be provided at a low cost.</p> |
