METHOD OF MANUFACTURING HEAT TRANSFER PLATE

摘要

A method of manufacturing a heat transfer plate which has high heat transfer efficiency and can be easily manufactured.  A method of manufacturing a heat transfer plate is provided with a preparation step for superposing a first metallic member (2) and a second metallic member (3) on each other to form a hollow space (K) between a first groove (5) in the first metallic member (2) and a second groove (6) in the second metallic member (3) and inserting a heat medium pipe (4) into the space (K), and the method is also provided with an inflow stirring step for inserting an inflow stirring rotating tool (55) from the first metallic member (2) and the second metallic member (3) of the temporarily assembled structure, which is formed in the preparation step, and moving the tool along the space (K) to cause a plastic fluid material (Q) to flow into gaps (P1-P4) formed around the heat medium pipe (4), with the plastic fluid material (Q) having been plasticized and fluidized by frictional heat.  At least one of the width or the height of the space (K) is set to be greater than the outer diameter of the heat medium pipe (4).