| 摘要 |
PURPOSE:To obtain a box-shaped thin heat transfer plate assembly by a method wherein a plastic material such as anti-crooking P.P is developed to be made thinner and a plurality of box-shaped heat transfer plates are produced from the material in such a manner that the corners of each product are formed by making use of the plastic hinge effect of the material. CONSTITUTION:Each unit of the box-shaped heat transfer plate assembly is made of a thermoplastic resin material such as P.P having an anti-crooking characteristic and the parts of the material which will become the corners of the resultant unit plate 1 are made to have a thickness of 0.2-0.4mm. so as to act as plastic hinges 1b when the material is folded at the parts. The folded box-shaped unit plate 1 is then sealed by an ultrasonic deposition process. Further, a passage 1a for a fluid B is provided in each of the unit plates of the assembly and passage 3 for a fluid A are provided among the unit plates so that a heat exchange operation between the two fluids A and B is performed through the unit plates 1. |
