Heating device and method for plate rolling process

Abstract

The invention relates to a heating device and method for a plate rolling process, which includes a mobile induction coil group for overall heating, a crawler induction coil group for supplementary heat, a first thermometer, a second thermometer and The plate shaper uses the conveyor belt to drive the plate to move at a constant speed on the production line, and uses the overall induction coil and the crawler induction coil group to initially heat and supplement the heat of the plate, so that the plate as a whole reaches the optimum rolling temperature. Through the synchronous movement of the crawler induction coil group and the plate, and the real-time detection of the surface temperature and shape of the plate by the thermometer and the shape meter, the point-to-point precise heating of the small coils during the heating process is realized, which reduces the problems caused by poor plate shape, medium wave, and heating process. The uneven surface shape of the plate, such as the change of the plate shape, causes the excessive local temperature difference, so that the plate can be heated accurately and uniformly before rolling, and the ideal temperature distribution can be achieved, so as to realize the heating demand of the plate in different rolling stages and improve rolling quality.

Description

technical field [0001] The invention belongs to the technical field of plate continuous rolling, and in particular relates to a heating device and method for a plate rolling process. Background technique [0002] In today's world, steel rolling technology is developing rapidly. Steel rolling production has made great progress in automation, high precision and continuity, and has become a mature, stable and efficient production line. Plate and strip is also a widely used steel. The output of plate and strip in my country accounts for 45% to 55% of the total steel output, and most of the plate and strip are produced by rolling. The rolling method is used to produce plates, which not only has high productivity and many varieties, but also is easy to realize mechanization and automation. [0003] In actual production, most plates are heated or preheated by a heating furnace. With this heating method, the deformation of the plate is large, and the energy utilization rate is lo...

AI Technical Summary

Problems solved by technology

However, due to factors such as poor plate shape, medium waves, curling creases, cooling wrinkles, or plate shape changes during heating, uneven heating and excessive temperature differences have seriously affected the rolling quality of the plate.

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