A method for precise control of billet moving speed

Abstract

The invention discloses an accurate control method for moving speed of casting blanks. Manufacturing is carried out on the basis of a rotary striking type deburring machine, and the deburring machineat least comprises roller ways and a rotating shaft capable of lifting, wherein the roller ways are used for conveying the casting blanks, the rotating shaft with blades is used for removing burrs, and each roller way is provided with a speed measuring device which is used for measuring speed; at least three speed measuring devices are arranged between the roller way in the forefront and the axisof the rotating shaft at intervals in sequence along the moving direction of the casting blanks; a direct speed measuring mode is adopted when the casting blanks are relatively close to a cutting point, the positions of the casting blanks are determined through at least three speed measuring devices, so that the structure is simple and effective, the problem that the moving speed of the casting blanks are inaccurate due to the fact that the roller diameters of the roller ways changes and the like is solved, and the reliability of measuring data is improved; and meanwhile, when the casting blanks are relatively far away from the cutting point, an indirect speed measuring mode is adopted by arranging the speed measuring devices on the roller ways, so that calculation amount is reduced, and the method is simple and rapid.

Description

technical field [0001] The invention belongs to the technical field of slab measurement, and in particular relates to a measurement and control method in the process of removing burrs from continuous casting slabs. Background technique [0002] As the core process of steel products, continuous casting plays a decisive role in product quality. How to solve the problem of continuous casting slab burrs is the core element to improve product quality. The slab burr is the high hardness rigid burr formed at the bottom during the flame cutting process of the slab. If the burrs are not cleaned, they will enter the subsequent hot rolling process together with the billet, causing damage to the rolls, causing problems such as roll loss, shortening the service life of the rolls, and greatly increasing the cost of spare parts per ton of steel. At the same time, because the burrs are mainly impurities, rolling together with the slab will cause quality defects such as scarring, cracking, ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for accurately controlling the moving speed of the slab, realize the accurate measurement of the moving speed of the slab, solve the problem of inaccurate measurement of the moving speed of the slab due to changes in the diameter of the roller table, etc., and improve the The reliability of the measurement data enables a reasonable match between the moving position of the casting slab and the lifting time of the rotating blade, making the deburring rate of the slab reach over 99.99%.

Images