Novel process for on-line removing of scale at surface of hot-rolled copper plate belt

Abstract

The invention discloses a novel process for the on-line removing of scale at the surface of a hot-rolled copper plate belt, which is a process for scraping, brushing and purging scale at the surface of a blank ingot during hot rolling. The process comprises the following steps: scraping and brushing the scale on the upper surface or the lower surface of a rolled piece (3) by a scraping and brushing roller at the inlet side and the outlet side of a working roller, scraping off the scale which already turns up because of hot rolling, and avoiding pressing into the inside of the rolled piece during rolling; the process can solve the long-term puzzling problem of the pressing-in of the scale in the hot-rolling process of a copper plate belt, can be used for common hot-rolling materials, also can be used for hot-rolling quenching materials, can lower the energy consumption and the cost, can improve the labour production conditions of workers and can better produce a blank used for a cold-rolling copper plate belt with no scale pressed into the surface.

Description

technical field [0001] The invention belongs to the field of metal pressure processing and manufacturing, and in particular relates to a new process for removing oxide scales on the surface of hot-rolled copper strips online. Background technique [0002] Copper and its alloys must be heated to a high temperature before hot rolling—such as high-iron bronze, low beryllium bronze, and other copper alloys, which need to be heated to 950-980°C before rolling. During high-temperature heating, it is easily oxidized by oxygen in the heating atmosphere. Especially oxygen-free copper, red copper and phosphorus-deoxidized copper, even under reducing heating atmosphere, when heated to the starting rolling temperature of 800-850 ℃, the surface generally has oxide skin with a thickness of 0.2-0.3mm. Once the atmosphere is not well controlled, sometimes the thickness of the scale is even as high as 1mm or more. Even during the rolling process, due to the action of the high-temperature b...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of removing the scale on the surface of the hot-rolled copper strip, the present invention provides a new process for online removal of the scale on the surface of the hot-rolled copper strip

This process can solve the long-term problem of scale intrusion in the hot rolling process of copper strips, reduce energy consumption costs, improve labor production conditions for workers, and better produce cold-rolled copper strips with no scale indentation on the surface.

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