Multi-layered adhesive sheet, material for forming heat exchanger, and heat exchanger

A material for forming a heat exchanger, the material comprising a plurality of multi-layered adhesive sheets, each of which comprises a metal sheet and at least two thermosetting resin layers having different functions formed on at least one of two surfaces of the metal sheet, wherein the at least two thermosetting resin layers comprise a first thermosetting resin layer having a shear adhesion strength in a range of 10–100 MPa, and a second thermosetting resin layer formed on the first layer and having gap filling properties in a range of 5–60 mm.

A method of manufacturing a heat exchanger, comprising the steps of:

• providing a plurality of sheet materials for forming a heat exchanger, each of the sheet materials comprising a plurality of multi-layered adhesive sheets, each of the adhesive sheets comprising a metal sheet and at least two thermosetting resin layers having different functions formed on at least one of two surfaces of the metal sheet, wherein the at least two thermosetting resin layers comprise a first thermosetting resin layer having a shear adhesion strength in a range of 10–100 MPa, and a second thermosetting resin layer formed on the first layer and having gap filling properties in a range of 5–60 mm;
• and
• bonding the plurality of sheet materials to each other.

A heat exchanger formed by bonding a plurality of sheet materials, each of the sheet materials comprising a plurality of multi-layered adhesive sheets, each of the adhesive sheets comprising a metal sheet and at least two thermosetting resin layers having different functions formed on at least one of two surfaces of the metal sheet, wherein the at least two thermosetting resin layers comprise a first thermosetting resin layer having a shear adhesion strength in a range of 10–100 MPa, and a second thermosetting resin layer formed on the first layer and having gap filling properties in a range of 5–60 mm.