Hot air blowing type fluidized-bed furnace, rotary heat-treatment furnace, heat-treatment apparatus, and method of heat treatment

摘要

A heat-treatment apparatus including a first furnace for heat treatment and solution treatment of a work piece, and a second furnace for heat treatment and aging treatment of a work piece, wherein each furnace includes a dispersion tube cantilevered and immersed within a fluidized bed, the tube for blowing hot air into the fluidized bed. The first furnace includes a heat exchanger for recovering waste heat from gases discharged the first furnace for use as a heat source for the second furnace.