A method for forming and fine dispersion of fine hydrogen bubbles in hydrogen containing aluminum - casting alloy melts

摘要

A method for forming and fine dispersion of fine hydrogen bubbles in the form of micropores in hydrogen containing aluminum - casting alloy melts,the aluminum - casting alloy melt is fed to a means, the one hand of an aluminium powder with a particle diameter of less than 200 μm and a natural aluminum oxide skin is formed on air produced comprises highly compact,characterized by the,that the pressing body made of aluminum powder 0,01 to 1 w -% metal hydride, andin that the means less than 0,5 w -%, based on the molten metal are used.