| 摘要 |
PURPOSE:To obtain the formed product with excellent property, while eliminating reheating loss, and enabling uniform working temperature to be kept even to inside by a method in which the sheet extruded out of an extruder, etc. is cooled to room temperature, and is cooled to the temperature suitable for post-working without winding-in said sheet, and then formed. CONSTITUTION:Cold water spray or cold air is brown against the (thermoforming) blank sheet S having been sent out of the blank sheet-producing device such as an extruder or a rolling device, etc. After said sheet has been cooled to the temperature suitable for post-working such as vacuum forming, etc., the sheet S is supplied to a vacuum forming device 6, and the desired sheet may be obtained. |
