Heat transfer composite aluminum plate with self-fusion layered microstructure and preparation method of heat transfer composite aluminum plate

The invention relates to a heat transfer composite aluminum plate with a self-fusion layered microstructure and a preparation method, the heat transfer composite aluminum plate is of a sandwich structure, and specifically comprises an upper coating layer, a lower coating layer, a middle matrix and a micro-scale self-fusion layer between the coating layers and the matrix; the coating layer is connected with the middle matrix through a self-fusion layer; and the self-fusion layer is a controllable fusion interface layer formed by adopting a cast rolling process. The three-layer aluminum alloy composite board has the advantages of being good in corrosion resistance, high in bending resistance, high in production efficiency, environmentally friendly and the like. 本发明涉及一种具有自熔合层状微结构的热传输复合铝板及制备方法，所述热传输复合铝板为三明治结构，具体包括上下两侧覆层、中间基体及覆层与基体之间的微观尺度自熔合层；所述覆层与中间基体之间通过自熔合层连接；所述的自熔合层是采用铸轧工艺形成的可控熔合界面层。该三层铝合金复合板具有抗腐蚀特性好、抗折弯能力强、生产效率高、绿色环保等诸多优点。