Method for producing double-zero aluminum foil blank by ultrasonic casting and rolling

Abstract

The invention relates to preparation of an aluminum alloy materials, and to a method for producing a double-zero aluminum foil blank through ultrasonic casting-rolling. The method comprises the following steps: 1), smelting, namely, matching and smelting according to components of an alloy; 2), leading into a furnace, refining in a stand furnace, filtering, and degassing; 3), casting-rolling, namely, by using a multi-stage diversion block as a front casting-rolling box nozzle, inserting an ultrasonic coupling head into a front box aluminum liquid with the inserting depth of 10-15mm, aligning the coupling head right to a casting nozzle opening, powering on an ultrasonic generator, and introducing ultrasonic waves without grain refiner. Due to the adoption of a high-temperature ultrasonic technique, a conventional grain refiner is replaced, a very good grain refining effect is achieved, the uniformity and the degassing effect of melt are improved, the requirements of high uniformity, and high cleanness and grain refining on blank tissue of high-quality double-zero aluminum foil can be met; a double-zero aluminum foil product prepared from the blank is small in needle hole number, not easy to crack and can meet relatively high use requirements.

Description

technical field [0001] The invention relates to the manufacture of aluminum alloy materials, and relates to a method for producing double-zero aluminum foil blanks by ultrasonic casting and rolling. Background technique [0002] Double-zero aluminum foil is an aluminum foil with two zeros after the decimal point when its thickness is measured in mm, usually an aluminum foil with a thickness less than 0.0075mm, mainly used in electronics, packaging and other industries. Double-zero aluminum foil has almost all the characteristics and functions of aluminum foil, and its consumption accounts for more than 90% of the aluminum used in packaging. Domestic production of double-zero aluminum foil mostly uses cast-rolled billets, which have a greater advantage in production costs compared with foreign hot-rolled billets. However, the double-zero aluminum foil produced by the traditional casting and rolling process often has too many pinholes and is easily broken during use, which ca...

AI Technical Summary

Problems solved by technology

Although adding a grain refiner in the casting and rolling process can improve the uniformity of the billet structure and refine the grain, but because the grain refiner itself also exists as an impurity, it will also increase the number of pinholes in the final double-zero aluminum foil product , affecting product quality

Images