Lug copper material production technology

Abstract

The invention discloses a lug copper material production technology which comprises the following steps: adopting an oxygen-free copper furnace to carry out electromagnetic casting on high-purity cathode copper to prepare ingot blank; carrying out hot rolling first and then online cooling on the ingot blank; carrying out finish-milling on surfaces: carrying out finish-milling on double surfaces twice, and scrubbing with clear water; rough rolling and cogging: carrying out two-rack four-pass rolling; adopting rapid abrasive to clean and remove oil, and carrying out refined scrubbing with the abrasive; cleaning again after annealing; rolling and cleaning with all oil having no chromatic aberration; rapidly annealing and cleaning without scrubbing grains; rolling to obtain a finished productwith all oil having no chromatic aberration; rapidly cleaning and removing oil; annealing and cleaning without scrubbing grains; and carrying out lossless shearing and withdrawing-straightening on thefinished product to obtain a lug copper strip. With adoption of the lug copper material production technology, the electricity and heat conduction performance and the bending performance of the copper strip can be effectively ensured, the surface defect can be effectively removed, the surface pollution caused by emulsion and rolling oil is reduced, the surface is prevented from the scrubbing grains, scratch and other defects, nickel plating of the copper strip during the following machining process is tighter and more uniform, and the service life of a lug processed in the following process can be prolonged to 10 years.

Description

technical field [0001] The invention relates to a production method of a tab, in particular to a production process of a tab copper material. Background technique [0002] The copper material for tabs has good electrical conductivity, thermal conductivity and bending performance, especially the surface quality requires uniformity to meet the surface consistency after nickel plating. There are technical bottlenecks in the production of existing tab copper materials, and the technologies of non-chromatic aberration rolling, brushless grain annealing cleaning and non-damage shearing are immature, and the O content for tabs used in the market is ≤10PPM, P content<3PPM, 180 High-degree repeated bending performance ≥ 7 times, the surface is clean and bright without black threads, the color is uniform without color difference, and there is a strong demand for copper strips with no damage on the surface, especially downstream customers have a strong market for high-quality copper...

AI Technical Summary

Problems solved by technology

There are technical bottlenecks in the production of existing tab copper materials, and the technologies of non-chromatic aberration rolling, brushless grain annealing cleaning and non-damage shearing are immature, and the O content for tabs used in the market is ≤10PPM, P content<3PPM, 180 High-degree repeated