Large-sized high-temperature high-strength material vacuum precision casting equipment

Abstract

The invention belongs to the field of precision casting equipment, and particularly relates to large-sized high-temperature high-strength material vacuum precision casting equipment. The large-sized high-temperature high-strength material vacuum precision casting equipment comprises a smelting chamber (1), a mold case chamber (2), a smelting coil (5), a mold case heater (6), a mold case trolley (9), a smelting chamber vacuum system (12) and a mold case chamber vacuum system (13), wherein the smelting chamber (1) and the mold case chamber (2) are fixedly connected; a communication opening (801)is formed between the smelting chamber (1) and the mold case chamber (2); the smelting coil (5) and the mold case heater (6) are arranged in the smelting chamber (1); a water cooling isolation valve(8) is arranged at the upper part of a cavity of the mold case chamber (2); the smelting coil (5) is fixedly connected with a translation turning structure; the mold case trolley (9) is arranged outside the mold case chamber (2); a jacking and pushing mechanism is fixedly arranged at the back end of a furnace door (901); and a mold case (11) is arranged on a mold case tray (16). The large-sized high-temperature high-strength material vacuum precision casting equipment has the advantages that the heating speed is high; the service life is long; and the large-sized high-temperature high-strengthmaterial vacuum precision casting equipment is suitable for continuous production of large-sized casting.

Description

technical field [0001] The invention belongs to the field of precision casting equipment, in particular to a vacuum precision casting equipment for large-scale high-temperature and high-strength materials. The equipment can be used to produce equiaxed crystal precision castings of large superalloys weighing more than 100kg. Background technique [0002] Vacuum precision casting equipment is a special metallurgical equipment used for precision casting in vacuum or protective atmosphere. This equipment is mainly used for large-scale high-temperature alloy precision castings. The traditional vacuum precision casting furnace adopts a vertical double-chamber structure, with the shell chamber at the bottom and the melting chamber at the top. The smelting room is used for secondary remelting of the parent metal alloy by the inductor, and a mold shell heating system is also required in the smelting room. After the secondary remelting is completed, the metal liquid in the crucible ...

AI Technical Summary

Problems solved by technology

This set of mechanisms needs to occupy a distance in the vertical direction, so traditional vacuum precision casting furnaces often have to dig a pit about 3 to 4m deep on the ground where the furnace body is located to accommodate the traditional mechanism of the mold shell; Generally, the mold shell heater is not equipped, but when the mold shell is increased, the temperature of the mold shell will be lowered before casting, which does not take advantage of the casting process

At the same time, due to the increase in the size of the mold shell, the melting coil must be placed at a higher position above the mold shell in order not to mechanically interfere with the mold shell (or mold shell heater). Too high a distance does not take advantage of controlling the stability of the liquid flow during the casting process. sex

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