| 摘要 |
PURPOSE:To absorb smoothly thermal deformation by forming a corrugation member in such a way that the upper peripheries of flanges in the direction of the height of L-shaped members are closely brought into contact, and forming continuously two or more rectangular frames by means of four corrugation members. CONSTITUTION:Rectangular frames are formed by corrugation members 01 each of which consists of L-shaped members 1, and by welding the peripheries thereof so as to be watertightly closed, rectangular plates 2 are formed. When the temperature of corrugation members 1 and rectangular plates 2 rises to expand, the clearance between flanges formed by Welded parts 4 close to respond to the expansion. Thus, thermal deformation can be effectively absorbed. |
