Production method of high-precision ultralong oxygen-free copper strip

Abstract

The invention relates to a production method of a high-precision ultralong oxygen-free copper strip and belongs to the technical field of oxygen-free copper strip production, processing and manufacturing. The production method of the high-precision ultralong oxygen-free copper strip comprises: (1) selecting electrolytic copper as a raw material, adding the electrolytic copper into a melting furnace, smelting the melting furnace, allowing molten copper to flow into a crystallizer added with an electromagnetic oscillation coil, performing electromagnetic deoxidization of the molten copper and horizontally casting a blank by electromagnetic continuous casting in the electromagnetic continuous casting crystallizer added with the electromagnetic oscillation coil, cooling in the electromagnetic continuous casting crystallizer, crystallizing to form strip copper blanks, and stretching by an ingot leading machine; (2) milling a strip blank by a double-sided miller; (3) performing reversible coarse medium rolling of the copper strip; (4) performing primary trimming by a thick strip longitudinal shearing machine; (5) annealing in a bell type bright annealing furnace; (6) cleaning surface on a thick strip degreasing cleaning line; (7) finely rolling in a four-roller reversible fine rolling machine; (8) annealing a finished product in the bell type bright annealing furnace; (9) cutting the finished product by a thin-strip longitudinal shearing machine; (10) packing in a packaging machine and performing physical and chemical examination; and (11) performing incoming inspection and storing.

Description

technical field [0001] The invention relates to a production method of high-precision super-long oxygen-free copper strip, which belongs to the field of production, processing and manufacturing of oxygen-free copper strip. Background technique [0002] Because copper and copper alloys have many excellent properties, they are widely used in various sectors of the national economy, such as machinery, electronics, automobiles, electric power, communications, transportation and light industry sectors. The consumption of copper strips is very large. In 2009, the statistical production capacity of copper strips in my country was 1.435 million tons, the actual production capacity was 900,000 tons, and the capacity utilization rate was 63%. In that year, the imported copper strips were 350,000 tons, and the exports were about 20,000 tons. showing a trend of rapid increase year by year. However, the production capacity of general products in my country has been overcapacitated, while ...

AI Technical Summary

Problems solved by technology

In recent years, oxygen-free copper materials with high thermal conductivity, high electrical conductivity, high density, low gas content and excellent mechanical properties are the basic materials in cutting-edge fields such as vacuum electronics. In this product field, only a few manufacturers in my country use small-tonnage vacuum melting production method, and the production volume is small, the equipment structure is complex, the maintenance is difficult, and the shortcomings of low yield are difficult to meet the needs of my country's supporting industries.

Images