Method for manufacturing aluminum base material

Abstract

A manufacturing method can obtain Al-based particles. A particle-dispersed molten salt (an example of an Al base material), in which Al-based particles (liquid phase) are dispersed in molten salt, can be obtained by bringing Al-based foil into contact with molten salt. Through particle-dispersed molten salt, for example, Al-based powder (an example of Al base material) composed of Al-based particles (solid phase) can be efficiently or easily obtained. By classifying Al-based particle groups, Al-based powder with a desired particle size distribution can be obtained. The Al-based foil has a thickness of, for example, at most 0.5 mm, and even 0.1 mm. The Al-based foil is supplied to molten salt in the form of shredded foil pieces. This allows Al-based powder to be obtained with a particle size distribution including fine particles. It is preferred to use, for example, a mixed salt containing NaCl and KCl as molten salt.

1 . A method for manufacturing an aluminum base material, comprising bringing an aluminum-based foil into contact with a molten salt to obtain aluminum-based particles. 
     
     
         2 . A method for manufacturing an aluminum base material, comprising:
 a melting step of putting an aluminum-based foil in a molten salt layer to melt the foil; and   a collecting step of collecting aluminum-based particles obtained after the melting step.   
     
     
         3 . The method for manufacturing an aluminum base material according to  claim 1 , wherein the aluminum-based foil comprises shredded foil pieces. 
     
     
         4 . The method for manufacturing an aluminum base material according to  claim 1 , wherein the aluminum-based foil has a thickness of less than 0.1 mm. 
     
     
         5 . The method for manufacturing an aluminum base material according to  claim 1 , wherein the molten salt comprises a mixed salt. 
     
     
         6 . The method for manufacturing an aluminum base material according to  claim 5 , wherein the mixed salt contains NaCl and KCl. 
     
     
         7 . The method for manufacturing an aluminum base material according to  claim 1 , wherein
 the aluminum-based particles are liquid-phase particles, and   the aluminum base material is a particle-dispersed molten salt in which the liquid-phase particles are dispersed in the molten salt.   
     
     
         8 . The method for manufacturing an aluminum base material according to  claim 1 , wherein
 the aluminum-based particles are liquid-phase particles, and   the aluminum base material is an aluminum-based molten metal obtained from the liquid-phase particles.   
     
     
         9 . The method for manufacturing an aluminum base material according to  claim 1 , wherein
 the aluminum-based particles are solid-phase particles obtained by solidifying liquid-phase particles, and   the aluminum base material is a particle-dispersed solidified salt in which the solid-phase particles are dispersed in a solidified salt obtained by solidifying the molten salt.   
     
     
         10 . The method for manufacturing an aluminum base material according to  claim 1 , wherein
 the aluminum-based particles are solid-phase particles obtained by solidifying liquid-phase particles, and   the aluminum base material is an aluminum-based powder comprising the solid-phase particles.   
     
     
         11 . The method for manufacturing an aluminum base material according to  claim 2 , wherein the aluminum-based foil comprises shredded foil pieces. 
     
     
         12 . The method for manufacturing an aluminum base material according to  claim 2 , wherein the aluminum-based foil has a thickness of less than 0.1 mm. 
     
     
         13 . The method for manufacturing an aluminum base material according to  claim 2 , wherein the molten salt comprises a mixed salt. 
     
     
         14 . The method for manufacturing an aluminum base material according to  claim 13 , wherein the mixed salt contains NaCl and KCl. 
     
     
         15 . The method for manufacturing an aluminum base material according to  claim 2 , wherein
 the aluminum-based particles are liquid-phase particles, and   the aluminum base material is a particle-dispersed molten salt in which the liquid-phase particles are dispersed in the molten salt.   
     
     
         16 . The method for manufacturing an aluminum base material according to  claim 2 , wherein
 the aluminum-based particles are liquid-phase particles, and   the aluminum base material is an aluminum-based molten metal obtained from the liquid-phase particles.   
     
     
         17 . The method for manufacturing an aluminum base material according to  claim 2 , wherein
 the aluminum-based particles are solid-phase particles obtained by solidifying liquid-phase particles, and   the aluminum base material is a particle-dispersed solidified salt in which the solid-phase particles are dispersed in a solidified salt obtained by solidifying the molten salt.   
     
     
         18 . The method for manufacturing an aluminum base material according to  claim 2 , wherein
 the aluminum-based particles are solid-phase particles obtained by solidifying liquid-phase particles, and   the aluminum base material is an aluminum-based powder comprising the solid-phase particles.