| 摘要 |
PURPOSE:To obtain a low-temperature thermal thawer capable of thawing a material which is placed on a boardlike unit for thawing by heating at a low temperature by arranging an electric heating element through a heat insulating sheet on the inside of a nonferrous metallic plate container made of a hardly heat ray penetrating material and then cladding the heat insulating sheet and the electrical heating element with the far infrared ray emitting boardlike unit. CONSTITUTION:An electric heating element 2 is arranged through a heat insulating sheet 5 on the inside of a nonferrous metallic plate container made of a hardly heat ray penetrating material and then clad with a far infrared ray emitting boardlike unit 7 so as to enclose the heat insulating sheet and the electric heating element. A far infrared ray emitting layer 8 is formed in the shape of a coating agent or a sintering agent on one or both surfaces of the far infrared ray emitting boardlike unit. The boardlike unit itself is a nonferrous metallic plate having heat ray absorptivity and oxidizing properties. A material (A) which is placed on the top surface of the boardlike unit for thawing is thawed with far infrared ray radiant waves increased by heating at a low temperature. |
