coreless-type induction furnace, coreless type induction furnace, high-frequency induction furnace
induktsioonsulatusahi, milles sulatus toimub induktoriga ümbritsetud tiiglis (vt induktsioonahi; vrd südamikuga induktsioonahi), a refractory-lined vessel surrounded by an electrically energized current carrying water-cooled copper coil; no core is provided in such a furnace (see: induction furnace; compare: channel-type induction furnace)
