Equipment and method for continuous takt type vacuum heat treatment of workpieces

Abstract

The invention relates to equipment and a method for continuous takt type vacuum heat treatment of workpieces. According to the technical scheme, the equipment includes a feeding platform, an inlet transition bin, a high-temperature vacuum heat treatment chamber, a gas quenching chamber, a low-temperature vacuum heat treatment chamber, a forced cooling platform, an outlet transition bin and a discharging table which are sequentially connected, and the feeding table, the inlet transition bin, the forced cooling platform, the outlet transition bin and the discharging table are in the same horizontal plane with the bottoms of the high-temperature vacuum heat treatment chamber and the low-temperature vacuum heat treatment chamber; the gas quenching chamber is in the same horizontal plane with the tops of the high-temperature vacuum heat treatment chamber and low-temperature vacuum heat treatment chamber; a vacuum acquisition system communicates with the inlet transition bin, the high temperature vacuum heat treatment chamber, the gas quenching chamber, the low temperature vacuum heat treatment chamber and the outlet transition bin; a transmission mechanism is used for transferring a workpiece tray for loading workpieces; and an automatic control system is used for controlling a working takt interval period. According to the equipment and method, industrial scale continuous vacuum heat treatment machining of batch workpieces is realized, and the equipment and method have the advantages of high production efficiency, stable quality, low energy consumption and the like.

Description

technical field [0001] The invention belongs to the field of metal material thermal processing technology and equipment, and in particular relates to equipment and a method for continuous beat vacuum heat treatment of workpieces. Background technique [0002] Vacuum heat treatment is a new heat treatment technology combining vacuum technology and heat treatment technology. Compared with conventional heat treatment, vacuum heat treatment can realize almost all heat treatment processes involved in conventional heat treatment, but the quality of heat treatment is greatly improved. At the same time of vacuum heat treatment, it can realize no oxidation, no decarburization, no carburization, can remove phosphorus chips on the surface of the workpiece, and has the functions of degreasing and degassing, so as to achieve the effect of surface brightening and purification. The current vacuum high-pressure air-cooling quenching technology not only greatly improves the vacuum air-cooli...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of vacuum heat treatment technology is that in most cases, the workpiece can only be clamped and placed in the vacuum furnace. After closing the vacuum furnace door, the vacuum is first pumped to a higher vacuum degree, and then the heating system is turned on to heat the workpiece to the process temperature and keep it constant. time, then cool the workpiece at the cooling rate required by the process, and finally deflate the vacuum chamber and open the furnace door to take out the workpiece

Due to the repeated processes of closing the door, vacuuming, venting, opening the door, heating and cooling, etc., resulting in a long production cycle and high energy consumption, conventional vacuum heat treatment technology is difficult to apply to industrialized mass production.

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