Method and device for removing surface scale of copper and copper alloy ingot before rolling

Abstract

The invention discloses a method and device for removing surface scale of copper and copper alloy ingot before rolling. The method comprises the following steps of: before rolling, performing bilateral rolling with certain rolling reduction on the edge of the copper and copper alloy ingot with a vertical roller, so as to sufficiently loosen the primary scale generated on the surface of the copper and copper alloy ingot in the heating process; and scraping and brushing the copper and copper alloy ingot with loose primary scale on the surface with a steel brush. The device comprises vertical rollers sequentially arranged at the front end of a hot mill and a steel brush device, wherein two vertical rollers are symmetrically arranged on the two sides of the copper and copper alloy ingot; and the steel brush device comprises a bracket, a steel brush and a hydraulic cylinder, wherein the steel bush and hydraulic cylinder are mounted on the bracket. Through the invention, the relatively thick primary scale on the surface of the copper and copper alloy ingot after the heating and before the rolling can be effectively removed, thus the production cost is reduced, and the yield and production efficiency of the copper plate belt product are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of metal pressure processing, and in particular relates to a process method and a device for removing oxide skin on the surface of copper and copper alloy ingots before rolling. Background technique [0002] In the field of metal pressure processing, especially in the field of rolling engineering for the production of copper strips by hot-rolling copper and copper alloy ingots, copper and copper alloy ingots are prone to surface oxide scales during heating and rolling. The oxide skin generated on the surface of copper and copper alloy ingots is divided into two types, one is the primary oxide skin generated during the heating process of the ingot in the heating furnace, and the other is the oxide skin formed during the rolling process after the ingot is released from the furnace. The secondary oxide scale formed. These two types of oxide scales are produced by the chemical reaction between metallic copper a...

AI Technical Summary

Problems solved by technology

If it cannot be effectively removed before rolling, the furnace-generated primary scale is easily pressed into the surface of the copper strip during the rolling process, which will adversely affect the subsequent production process and yield.

[0004] At present, in the production process of copper and copper alloy large ingot hot rolling billet rolling, there is no effective and separate removal process for the thick primary oxide scale existing on the surface of the ingot after heating and before rolling, so as to As for the depth of double-sided milling of copper and copper alloy strips after hot rolling, sometimes two face milling is required, resulting in increased energy consumption, increased production costs, reduced production efficiency, and reduced product yield.

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