ANISOTROPY HEAT TRANSFER BODY AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an anisotropy heat transfer body which is composed of a metallic material with both fa heat conductivity and low heat expansivity.

SOLUTION: The anisotropy heat transfer body which is excellent in heat conductivity and heat expansivity in the parallel direction to each layer is a laminated body in which a Cu-based layer of a thickness 0.05 to 5.0 mm and a steel layer of a thickness of 0.05 to 5.0 mm are alternately laminated by ≥5 layers as to be integrated by the surface junction of each layer where the heat transfer body is Cu of a chemical composition or a Cu alloy in which a metal constituting the Cu based layer shows a conductivity of ≥85% IACS in an annealing state, and is composed of the laminated body in which the total thickness TCu (mm) of the Cu based layer and the total thickness TFe (mm) of the steel layer satisfy a relationship of a formula (1): 0.4≤TCu/(TCu+TFe)≤0.7 and formula (2): TCu+TFe≥1.0.

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