Heating cylinder device and preparation method thereof

The invention discloses a heating cylinder device and a preparation method thereof. The heating barrel device comprises a barrel-shaped structure with one end open and the other end closed, the barrel-shaped structure comprises an open end, a closed end and a middle area located between the open end and the closed end, the open end is made of a first fiber material, the closed end is made of a first fiber material, and the middle area is made of a second fiber material. The middle area is prepared from a second fiber material, the first fiber material comprises, by mass, 60%-85% of carbon fibers and 15%-40% of a thermosetting curing agent, and the second fiber material comprises, by mass, 30%-60% of carbon fibers and 40%-70% of a thermosetting curing agent. The heating cylinder device can reduce the problems of temperature gradient difference and the like caused by induction heating, so that the annealing furnace obtains a stable and uniform thermal field, the thermal stress of silicon carbide crystals is red