Movable closed isothermal forging die heating device

Abstract

The invention discloses a movable closed isothermal forging die heating device. The movable closed isothermal forging die heating device comprises a heating furnace box. Holes the same as press die bases in size are formed in the upper end face and the lower end face of the heating furnace box. Guide rails are laid beside a press. A heating furnace can be accurately arranged on the press lower die base through the guide rails. The upper die base penetrates the hole formed in the upper end face of the heating furnace to enter the heating furnace. In the forging process, the heating furnace box is completely closed, and temperature losses are avoided. It is guaranteed that in the forging process, heat losses are avoided, the die and forged blank temperature is constantly unchangeable, reduction of the temperature of a forged blank in the forging process is avoided, forging cracking of a deformation temperature sensitive material is eliminated, and superplastic deformation of a metal material is better achieved. The movable closed isothermal forging die heating device is easy to manufacture, and real isothermal forging can be achieved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of isothermal forging heating, and relates to a movable and closed mold heating device for isothermal forging. [0003] 【Background technique】 [0004] Isothermal forging is a forging process that controls the temperature of the forging die to approximately the same range as the heating temperature of the forging billet, so that the billet can complete the plastic deformation of the metal under the condition that the temperature is basically unchanged. The operation time of isothermal forging for a single piece ranges from a few minutes to tens of minutes. In order to ensure that the temperature of the mold and forging billet remains constant during the forging process, an independent mold heating device is required. [0005] In the existing separate mold heating device for isothermal forging, two heating furnaces are respectively fixedly connected to the upper mold base and the lower mold base of th...

AI Technical Summary

Problems solved by technology

If there is no forging billet between the upper die and the lower die, the heating furnace is closed when the upper and lower dies are closed. If the forging billet is placed between the upper and lower dies, the heating furnace cannot be completely closed during the forging process.

[0006] The disadvantage of the separate isothermal forging mold heating device is that the heating furnace cannot be completely closed during the forging process, and a closed space cannot be formed, and there is a large amount of heat loss, which cannot ensure that the temperature of the mold and forging billet is consistent with the heating temperature, and true isothermal forging cannot be realized; In addition, repeated changes in mold temperature can lead to a reduction in mold life

Images