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A purging device for heat treatment of metal plate and strip

A technology of metal strips and nozzles, applied in heat treatment furnaces, heat treatment equipment, quenching devices, etc., can solve the problems of incomplete removal of residual water on the lower surface, incomplete drying of plates and strips, incomplete removal of residual water, etc., and achieve improvement Cleaning effect, controllable drying effect, and improved air jet uniformity

Active Publication Date: 2019-08-09
NORTHEASTERN UNIV LIAONING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN203830434U discloses a device for removing residual cooling water on the surface of a steel plate. The device belongs to the post-purging form of a traditional roller quenching machine. If the water is not completely removed, it is easy to produce purge streaks, local residual water is not removed, the plate and strip are not completely dried, and the residual water on the lower surface is not completely removed, etc., which have nothing to do with the new type of metal plate and strip heat treatment purging device of the present invention.

Method used

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  • A purging device for heat treatment of metal plate and strip
  • A purging device for heat treatment of metal plate and strip
  • A purging device for heat treatment of metal plate and strip

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Embodiment Construction

[0025] This embodiment provides a specific implementation process of a metal plate and strip heat treatment purging device of the present invention, such as figure 1 , 2 As shown in Figure 3, an 80mm thick sheet metal strip is used as an example to illustrate the implementation process in detail. After the strip 1 enters the roller quenching machine 2, the position sensor 3 detects the actual positions of the upper purge nozzle 4 and the lower purge nozzle 5, and transmits the position signal to the PLC system 6, which is called according to the thickness of the strip 1 The position control program 7 controls the moving frame lifting motor 8 of the roller quencher, and adjusts the vertical distance between the upper purge nozzle 4 and the upper surface of the strip 1 and the vertical distance between the lower purging nozzle 5 and the lower surface of the strip 1 is 200mm. The laser detector 9 detects the head position of the strip 1 and the detection signal enters the PLC syste...

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Abstract

The invention belongs to the technical field of thermal treatment devices for metal sheet strips and provides a thermal treatment purging device for metal sheet strips. The device includes purging nozzles, anti-collision protective plates, a gas supplying pipeline, a control valve assembly and an automatic control system. The device can effectively remove residual thermal treatment cooling water on upper and lower surfaces of metal sheet strips and achieves a drying purpose. The device has an automatic operation function and a jetting parameter dynamically adjustable function, can accurately control a purging process for the metal sheet strips, significantly improves thermal treatment surface quality of metal sheet strips and increases the production efficiency.

Description

Technical field [0001] The invention belongs to the technical field of metal plate and strip heat treatment equipment, and relates to a metal plate and strip heat treatment purge device. Background technique [0002] The heat treatment of metal plates and strips involves normalizing, quenching, tempering, controlled cooling, solid solution and other processes. Quenching, controlled cooling, solid solution and other processes require the metal plates and strips to be heated to a certain temperature (generally ≥800℃) , Adopt water cooling method to lower the final cooling temperature of the process at a certain cooling rate to achieve the purpose of improving the internal structure and structure of the metal and enhancing the performance. [0003] The heat treatment of metal plates and strips usually uses a roller hearth heat treatment furnace to complete the heating process, and a roller quencher to complete the quenching, controlled cooling and other processes. The roller quenchin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/667C21D9/46C21D9/52C21D9/00
CPCC21D1/667C21D9/0081C21D9/46C21D9/52
Inventor 付天亮韩毅王昭东李勇田勇李家栋邓想涛王丙兴刘国怀
Owner NORTHEASTERN UNIV LIAONING
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