Moving wire rod dynamic heating device and wire rod annealing production line

Abstract

The invention discloses a moving wire rod dynamic heating device and a wire rod annealing production line. The moving wire rod dynamic heating device comprises a shell, a metal heat conduction layer and a heating piece; the shell is provided with a fixed cavity; the metal heat conduction layer is arranged in the fixed cavity, the metal heat conduction layer is in a particle shape, a powder shape or a filament shape, and a heating channel allowing a wire to penetrate through is formed in the metal heat conduction layer; and the heating piece is arranged in the fixed cavity or outside the shell and used for conducting heat to the wire by heating the metal heat conduction layer. According to the moving wire rod dynamic heating device, the heat exchange efficiency of the surface of the wire is improved, the heat transfer efficiency is maintained, the heating uniformity is achieved, the surface of the wire can be protected against high-temperature oxidation due to the fact that the surface of the wire makes contact with air, and therefore the basis for improving the wire coating quality is provided.

Description

technical field [0001] The invention relates to the technical field of metal wire rod annealing, in particular to a dynamic heating device for moving wire rods and a wire rod annealing production line. Background technique [0002] When extruding and coating the outer layer of metal wire products such as steel strips, based on the process, the plastic material is plasticized by the extruder and then coated around the required wire in a high-temperature molten state. In this process, the surface temperature of the wire has a great correlation with the subsequent characteristic changes of the molten plastic material that will be in contact with it. The interfacial adhesion of the layer material also has a lot to do with it. [0003] It is generally believed that the surface temperature difference between the molten plastic and the contact wire should be minimized. Of course, different material properties and actual operating process parameters (such as speed, material heat ca...

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Problems solved by technology

[0005] However, the performance of the above temperature control method is due to the uncertainty of measurement, the difference in the transmission of induced power and the randomness of the production process, the accuracy of temperature control is low, and the temperature control ability is average.

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