| 摘要 |
PURPOSE:To obtain the title apparatus capable of uniformly cooling the surface of a work by providing a plurality of cooling pipes and providing a plurality of blowoff orifices inclined with respect to the surface of the work and blowing out cooling air. CONSTITUTION:A large number of blowoff orifices 6 inclined with respect to the surface of a work 1 and blowing out cooling air are formed to the under surfaces of cooling pipes 5 at predetermined intervals in two rows in opposed relation to the surface of the work 1. Since the directions of cooling air blown out to the surface of the work 1 from the blowoff orifices 6 are inclined with respect to the surface of the work 1, the area of the cooling air impinging against the surface of the work 1 becomes wide and the width of each of cooling lines becomes large. The cooling air streams blown out of the adjacent cooling pipes 5 collide each other and are supplied to the surface of the work 1 as turblent air and, therefore, the cooling lines further become obscure and the temp. difference due to the parts of the work 1 is reduced and the work can be uniformly cooled. |
