Continuous casting billet weight-fixed and size-fixed cutting method

Abstract

The invention discloses a continuous casting billet weight-fixed and size-fixed cutting method, which comprises the following steps of calculating the sectional area of a continuous casting billet by measuring height and width of the continuous casting billet; then querying densities of the continuous casting billet at different temperatures through a density table, and calculating length of the continuous casting billet needing to be cut according to the weight of the continuous casting billet needing to be cut; and finally, detecting online length of the continuous casting billet in real time, and cutting the steel billet by a flame cutting machine when the steel billet is conveyed by a conveying roller bed to cut length. By adopting the continuous casting billet weight-fixed and size-fixed cutting method provided by the invention, online weight-fixed and length-fixed cutting of the continuous casting billet can be realized, the labor intensity of a worker is lightened, and the safety risk generated in the measuring and size fixing process of the worker at work is reduced; and meanwhile, by carrying out size-fixed cutting after weight fixing, the weight accuracy of a blank is improved, the yield of the steel billet is increased, and waste is reduced.

Description

technical field [0001] The invention relates to a method for cutting continuous casting slabs by fixed weight and length, and belongs to the technical field of steel slab cutting. Background technique [0002] The length and weight of continuous casting slabs in the bar rolling production line are important technical indicators for the assessment of the yield and cut-to-length ratio of the rolling system, and are also an important aspect that restricts the benefits of steel mills. At present, the billet length is cut according to the fixed length, and in the continuous casting production process of molten steel, affected by factors such as mold wear of the continuous casting machine, molten steel alloy composition and casting speed changes, the same flow of continuous casting at different times In the section, there is a difference in the weight of the billet cut by the fixed length, so that in the subsequent bar rolling production process, the fixed weight of the raw materi...

AI Technical Summary

Problems solved by technology

At present, the billet length is cut according to the fixed length, and in the continuous casting production process of molten steel, affected by factors such as mold wear of the continuous casting machine, molten steel alloy composition and casting speed changes, the same flow of continuous casting at different times In the section, there is a difference in the weight of the billet cut by the fixed length, so that in the subsequent bar rolling production process, the fixed weight of the raw material billet cannot be controlled, and redundant tail cutting will occur, resulting in greater waste and affecting rolling. Yield index of bar

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