Method for manufacturing heat conduction structure

Abstract

A method for manufacturing a heat conduction structure is provided, including: forming a porous metal structure by using a metal powder material; providing an electrolyte solution, where the electrolyte solution includes a high thermal conductivity nano material, and performing anodic oxidation treatment on the metal structure by using the electrolyte solution, to fill pores of the metal structure with the high thermal conductivity nano material; and performing hole sealing treatment on the metal structure.

What is claimed is: 
     
         1 . A method for manufacturing a heat conduction structure, comprising:
 forming a porous metal structure by using a metal powder material;   providing an electrolyte solution, wherein the electrolyte solution comprises a high thermal conductivity nano material, and performing anodic oxidation treatment on the metal structure by using the electrolyte solution, to fill pores of the metal structure with the high thermal conductivity nano material; and   performing hole sealing treatment on the metal structure.   
     
     
         2 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein a porosity of the metal structure is greater than 30%. 
     
     
         3 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein the step of forming the porous metal structure is that forming the metal structure by using an injection molding raw material in a metal injection molding (MIM) manner. 
     
     
         4 . The method for manufacturing a heat conduction structure according to  claim 3 , wherein the injection molding raw material comprises the metal powder material and a foam material. 
     
     
         5 . The method for manufacturing a heat conduction structure according to  claim 4 , wherein the metal powder material is an aluminum alloy powder material. 
     
     
         6 . The method for manufacturing a heat conduction structure according to  claim 4 , wherein the foam material is a titanium hydride polymeric material. 
     
     
         7 . The method for manufacturing a heat conduction structure according to  claim 4 , wherein the step of forming the metal structure in the metal injection molding manner comprises injecting a gas during metal injection molding to cause the foam material to foam. 
     
     
         8 . The method for manufacturing a heat conduction structure according to  claim 7 , wherein the gas is oxygen. 
     
     
         9 . The method for manufacturing a heat conduction structure according to  claim 4 , wherein the injection molding raw material comprises 1.5 to 2.5 wt % of the foam material. 
     
     
         10 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein the step of performing hole sealing treatment on the metal structure is that performing hole sealing treatment on the metal structure by using a rare earth material. 
     
     
         11 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein the high thermal conductivity nano material is a copper nano material, a silver nano material, or a graphene nano material. 
     
     
         12 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein before the step of performing anodic oxidation treatment on the metal structure by using the electrolyte solution, the method further comprises performing ceramic sandblasting on a surface of the metal structure. 
     
     
         13 . The method for manufacturing a heat conduction structure according to  claim 1 , wherein before the step of performing anodic oxidation treatment on the metal structure by using the electrolyte solution, the method further comprises performing surface cleaning treatment on a surface of the metal structure. 
     
     
         14 . The method for manufacturing a heat conduction structure according to  claim 3 , wherein after the step of forming the metal structure in a metal injection molding manner, the method further comprises forming a hook on the metal structure in a metal processing method.