| 摘要 |
A hearth roller type heat treatment furnace for performing continuous carbonization is provided to reduce loss time when a cycle is changed by adjusting the processing speed in heat treatment chambers according to the heat treatment conditions. A hearth roller type heat treatment furnace for performing continuous carbonization comprises a preheating chamber(10) for preheating a workpiece(100), a heat treatment chamber(20) for carbonizing the workpiece, a first hardening chamber(30) for hardening the workpiece, and a second hardening chamber(40) for protecting the hearth roller type heat treatment furnace from external air. The chambers are partitioned from each other by first to third partitions(15,25,35). A hearth roller unit(60) is provided to convey the workpiece. |
