Duplex rolling device

Abstract

The invention relates to a continuous rolling device for metal, in particular to a duplex rolling device, which is characterized in that: the duplex rolling device comprises an intermediate frequency hating furnace (8), a heat preserving furnace (7), a primary rolling mill (6) and a secondary rolling mill (5) which are arranged in turn; and the central lines of the primary and secondary rolling mills (6 and 5) are in the same axis. The duplex rolling device has high production efficiency which is three times that of the traditional single rolling mill; metallurgical bonding quality of two kinds of meals reaches the international advanced level; the working procedures are less and the cost is low; the quality consistency is ensured; and particularly, the quality product rate of large-scale copper clad aluminum busbars produced by the device is superior to the prior art. The device is the first choice for producing various models of copper clad aluminum busbars according with standard code.

Description

technical field [0001] The invention relates to a metal continuous rolling equipment, in particular to a duplex rolling device. Background technique [0002] At present, the domestic production of copper-clad aluminum busbar products is produced by the following methods: [0003] 1. Copper cladding method on aluminum plate. Copper strips are pasted on both sides of the aluminum plate by rolling method, and after cutting, it becomes a double-sided copper-clad busbar. The disadvantage is: there are aluminum leakage gaps on both sides of the narrow side; [0004] 2. The multiple drawing method of the orthodox body. In order to achieve the metallurgical combination of the two metals, it must be stretched and deformed for many times, and the deformation amount reaches more than 87% to achieve the size reduction during the metallurgical combination. It is difficult to produce large-scale copper-clad aluminum busbars, and the production quality is unstable; [0005] Three, hydro...

AI Technical Summary

Problems solved by technology

Copper strips are pasted on both sides of the aluminum plate by rolling method, and after cutting, it becomes a double-sided copper-clad busbar. The disadvantage is: there are aluminum leakage gaps on both sides of the narrow side;

Its disadvantages are: the manufacturing cost of the extruder is high, the extrusion efficiency is low, and it is difficult to achieve mass production;

[0006] 4. Multiple rolling method: using one rolling mill, repeated rolling for many times, difficult to adjust the rolling mill, difficult to ensure the size, loss of heat from the workpiece, and difficult to ensure consistency of quality

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