A kind of continuous casting billet burr release agent and burr removal method

Abstract

The invention relates to a burr isolating agent for a continuously cast steel billet and a burr removal method. Before cutting of the continuously cast steel billet, the burr isolating agent is sprayed onto the lower surface of the continuously cast steel billet along a cutting track, and then the continuously cast steel billet is cut; after burrs generated during cutting detach from a continuouscast steel billet body, under the isolating effect of the burr isolating agent, the burrs directly shed or are bonded to the continuously cast steel billet body through the burr isolating agent instead of being directly in contact with the continuously cast steel billet body and welded to the continuously cast steel billet body; the continuously cast steel billet is conveyed into a heating oven for heating after cutting is finished, and since the burr isolating agent loses effect under high temperature, the bonded burrs automatically shed from the continuously cast steel billet body. The purpose of completely removing the burrs without damaging the continuously cast steel billet body can be achieved.

Description

technical field [0001] The invention relates to the technical field of steel material cutting, in particular to a continuous casting billet burr release agent and a burr removal method. Background technique [0002] The widespread use of continuous casting technology has greatly improved the production capacity of steel billets, which is a revolutionary progress in steel production technology. During the continuous casting process, the continuously poured billets are cut into billets of specified length by corresponding flame cutting equipment. During the billet cutting process, the high-temperature flame melts the cutting part of the billet, the molten steel cools down rapidly, and welds on the lower surface of the billet to form billet burrs, which will cause the following hazards in the subsequent process: 1. The burrs are rolled into particles and Adhering to the surface of hot-rolled products, thereby affecting the flatness and smoothness of the product, reducing produ...

AI Technical Summary

Problems solved by technology

This device can replace the manual cleaning of slab burrs, but its essence is to burn off the burrs through flames. During the deburring process, the slab body will inevitably be damaged, and pits of different shapes and sizes will be left on the lower surface of the slab. During the rolling process, due to the unevenness of the surface, it is still possible to damage the surface of the roll, shorten the working cycle of the roll, and seriously affect the surface quality of the product

[0005] The Chinese patent whose patent number is CN204381331U discloses "an electric lifting blade type deburring machine", by installing a deburring roller bearing seat, a lifting slide seat on the continuous casting slab roller bed, and installing a deburring blade on the deburring roller and other methods to remove burrs, but still cannot guarantee 100% removal of burrs

[0006] To sum up, there are mainly two types of existing methods for removing burrs from continuous casting slabs. One is the mechanical removal method. This method achieves the purpose of removing burrs by cutting the burrs on the lower surface of the slab, but this method cannot guarantee the deburring of the burrs. Thorough removal, especially in the case of a large area of ​​tight welding between the burr and the billet body

The second type of method is the flame removal method, that is, burn the burr with flame to melt and drop the burr, so as to remove the burr. surface, thus adversely affecting subsequent processes

Images