Hot rolling device used for hot rolling production of copper and copper alloy plate strip blank and rolling method thereof

Abstract

The invention discloses a hot rolling device used for hot rolling production of copper and copper alloy plate strip blank and a rolling method thereof. The hot rolling device comprises a side roller installed in a mechanism frame, a clamping roller oil cylinder is utilized to achieve quick opening and closing of the side roller, a motor utilizes a speed reducer and a coupler to drive the side roller to conduct rolling, a rolling oil cylinder and a side roller bearing seat are connected, rolling force provided by the rolling oil cylinder is applied on the side roller through the side roller bearing seat, stable rolling of the side roller is achieved by the rolling oil cylinder, and the hot rolling device is symmetrically arranged on the inlet side and the outlet side of the hot rolling machine to respectively roll the side portions of hot rolling ingots. The side roller process reduces inlet width of the ingot hot rolling to reduce rolling width after hot rolling, controls hot rolling width gradually channel by channel by repeated rolling of the side roller and finally achieves hot rolling width control due to the fact that the side roller conducts side rolling before hot rolling of each channel according to specific number of free board sides on each channel in the hot rolling process.

Description

technical field [0001] The invention relates to a hot rolling device and a rolling method for hot rolling production of copper and copper alloy plate and strip blanks. Background technique [0002] At present, the production of hot rolling of copper and copper alloy strip blanks mainly adopts the method of heating copper and copper alloy ingots to 80%-90% of the melting point of the alloy, and using the good plasticity of copper and copper alloy ingots at high temperatures. Roll or four-roll reversing hot rolling mill to the required thickness of copper and copper alloy strip blank through several rolling passes. [0003] When using the current hot rolling production of copper and copper alloy strip blanks, the thickness of the ingot is continuously reduced during the hot rolling process of rolling copper and copper alloy ingots into billets, and at the same time, the ingot metal is produced along the longitudinal direction of the hot rolling mill rolls The extension makes ...

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Problems solved by technology

[0005] The current hot rolling production method of copper and copper alloy strip blanks increases the edge cutting process due to the uncontrolled width of the produced blanks and the problem of edge cracking, which increases the process loss by 10%-15%, which greatly restricts the blanks At the same time, due to the increase in the process, the production efficiency of the blank is reduced, which greatly affects the improvement of the production efficiency of the blank

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