Short-process high-performance oxygen-free copper strip production method

Abstract

The invention discloses a short-process high-performance oxygen-free copper strip production method which comprises the following steps: blank withdrawing during horizontal continuous casting; double-sided milling, reversible copper strip roughing and intermediate milling; primary trimming by thick strip slitting shears; primary annealing by a bell-jar bright annealing furnace; surface cleaning by a thick strip degrease cleaning line; finish rolling by a four-roll reversible finishing mill; secondary annealing of the finished product by the bell-jar bright annealing furnace; surface cleaning by a thin strip degrease cleaning line; and post-processing. The method provided by the invention has the advantages that through optimization of the technological process as well as the processing sequence of the rough rolling and finish rolling procedures, the processing flow is simplified, the production efficiency is improved and the process period is shortened; and through optimization of the annealing temperature, the heat preservation period and the shielding gas flow rate, the product performance is improved.

Description

technical field [0001] The invention relates to a method for producing a copper strip, in particular to a method for producing a short-flow high-performance oxygen-free copper strip. Background technique [0002] Copper and copper alloy sheets and strips are important products in copper processing and indispensable metal materials in national economic construction. They have excellent electrical conductivity, thermal conductivity, corrosion resistance, electrical connection, electrical contact, elasticity, etc., and are widely used in Various industrial fields, such as machinery, electronics, automobiles, electric power, communications, transportation, etc. In 2014, there were more than 300 copper plate and strip manufacturers in my country, with an output of 2.5 million tons, an import volume of 358,200 tons, and an export volume of 189,500 tons. Still relying on imports, my country's copper plate and strip processing level generally lags behind that of developed countries,...

AI Technical Summary

Problems solved by technology

In 2014, there were more than 300 copper strip manufacturers in my country, with an output of 2.5 million tons, an import volume of 358,200 tons, and an export volume of 189,500 tons. Still relying on imports, the processing level of copper strips in my country generally lags behind developed countries and cannot meet the requirements of the rapidly developing industry

In recent years, high-performance copper strips with high thermal conductivity, high electrical conductivity, high density, and high elongation are the basic materials for vacuum electronics and other intermittent fields. Low efficiency, poor performance and other shortcomings, it is difficult to meet the requirements of my country's supporting industries