HEAT CONDUCTIVE COMPOSITE MATERIAL SHEET AND FABRICATION METHOD THEREOF

摘要

Disclosed is a heat conductive composite material sheet (100), which comprises a first aluminum alloy layer (110), at least one graphite sheet (120), an aluminum alloy frame (130) and a second aluminum alloy layer (140), wherein the aluminum alloy frame (130) is provided with at least one opening (131), the graphite sheet (120) is positioned in the opening (131) of the aluminum alloy frame (130), the aluminum alloy frame (130) and the graphite sheet (120) are clamped between the first aluminum alloy layer (110) and the second aluminum alloy layer (140), the first aluminum alloy layer (110) is diffusively bonded with the graphite sheet (120) and the aluminum alloy frame (130), the second aluminum alloy layer (140) is diffusively bonded with the graphite sheet (120) and the aluminum alloy frame (130), and the graphite sheet (120) is coated with the first aluminum alloy layer (110), the second aluminum alloy layer (140) and the aluminum alloy frame (130) as a whole. The present invention also provides a fabrication method of the heat conductive composite material sheet. The heat conductive composite material sheet provided by the present invention and the fabrication method thereof can connect high heat conductive aluminum alloy to graphite and have a low production cost.