יחזקאל כב:כ פירוש: רש״י

As they gather silver As the silversmith gathers all the dross into the furnace.

to blow Heb. לָפַחַת, to blow (לְנַפֵּחַ).

to melt Heb. לְהַנְתִּיךְ. (Exod. 25:12) “and cast (וְיָצַקְתָּ)” is translated into Aramaic as וְתַתִּיךְ.