| 摘要 |
PROBLEM TO BE SOLVED: To realize a high-level quality at a reduced cost in a manufacturing method of a corrugated sheet body using synthetic paper as a material. SOLUTION: On the occasion of obtaining a corrugated sheet body by using synthetic paper as a material 11 and by forming this material 11 in the shape of a corrugated sheet with heat, a forming means 1 is heated by a heating means 4, while the temperature of the forming means 1 is detected directly by contact type temperature sensors 31 and 32 and the quantity of heat of the heating means 4 is controlled on the basis of the detected temperature. As the synergistic effect produced by small influence of an ambient environment on the heating temperature for the material 11, high accuracy of the temperature detected by the contact type sensors 31 and 32 and control of the heating quantity of the heating means 4 on the basis of the detected temperature of high accuracy, the material 11 is always formed under a proper heating temperature, variation is hardly caused in the shape of corrugations of the corrugated sheet body 12 as a product and thus the quality thereof can be improved.
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