On-line continuous quenching process and continuous quenching device for aluminum profile extrusion

Abstract

The invention relates to an on-line continuous quenching device for aluminum profile extrusion.The on-line continuous quenching device is characterized in that the outlet end of an aluminum profile extruding machine is provided with an aluminum profile temperature increasing mechanism, the lower end of the aluminum profile temperature increasing mechanism is sequentially connected with a water tank and a cooling bed, the aluminum profile temperature increasing mechanism comprises a U-shaped induction heating coil and a lifting guide column which are slidably connected, and the lifting guide column is fixedly connected to a sliding table arranged at the outlet end of the aluminum profile extruding machine.According to a continuous quenching process, the aluminum profile temperature increasing mechanism is arranged at the aluminum profile outlet end of the aluminum profile extruding machine, the temperature of aluminum profiles is increased to the quenching temperature of 420 DEG C-520 DEG C in the extruding advancing process, the extruding speed is 1-50 m / min, and the heat preservation time is 5-60 min.The process and device have the advantages that after the aluminum profiles are normally extruded, the temperature of the aluminum profiles in the extruding process can be increased by arranging the aluminum profile temperature increasing mechanism at the outlet end of the equipment, and the on-line continuous quenching process is achieved.

Description

technical field [0001] The invention belongs to aluminum or an aluminum-based alloy, and in particular relates to an online continuous quenching device and a continuous quenching process for extruding aluminum profiles at an outlet temperature lower than the quenching temperature. Background technique [0002] For industrially deformed aluminum alloys, especially 2XXX series and 7XXX series, because the outlet temperature is lower than the quenching temperature, existing equipment generally cannot achieve on-line quenching. The general quenching technology requires a special quenching furnace (usually It is a vertical quenching furnace) for heating and heat preservation, and then quenching in a sufficiently deep coolant (usually water) well. The entire production cycle is generally 2-3 days. The equipment investment of the existing quenching device is huge, and the production process steps are complicated , the production cycle is longer. [0003] Patent application number ...

AI Technical Summary

Problems solved by technology

It reduces equipment investment and quenching energy consumption, simplifies the process, and shortens the production cycle, but its defects: First, the patent uses electric heating to increase the temperature of the profile, which cannot achieve continuous production. In order to cooperate with this device, The extrusion process is carried out intermittently, which affects the extrusion efficiency and quality, and the production cost is high; the second is that the electric heating method is used for heating, the heating speed is slow, the heat uniformity is poor, the length of the heating part is long, and the space is large; the third is that the water spray device is easy. Splash, affecting the working environment, and uneven cooling, causing performance defects

But it has a defect: since there is no outlet heating device, it can only process profiles whose extrusion outlet temperature is not lower than the quenching temperature, and is not applicable to profiles whose extrusion outlet temperature is lower than the quenching temperature involved in this patent

But it has a defect: since there is no outlet heating device, it can only process profiles whose extrusion outlet temperature is not lower than the quenching temperature, and the extrusion outlet temperature lower than the quenching temperature involved in this patent is not suitable for profiles

But it has a defect: since there is no outlet heating device, it can only process profiles whose extrusion outlet temperature is not lower than the quenching temperature, while profiles lower than the extrusion outlet temperature are not suitable for quenching temperature

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