A continuous casting and rolling production process of aluminum alloy flux strip blank

Abstract

The invention relates to a continuous casting-rolling production technology for an aluminium alloy welding flux strip blank. Through silicon-phase modification treatment and temperature control, the aluminium alloy welding flux strip blank cannot be in breakage during continuous casting-rolling production, and the rolling performance of the aluminium alloy is improved, so that continuity in casting and rolling production of the aluminium alloy welding flux strip blank is realized, and the continuous casting-rolling production technology is particularly suitable for continuous casting-rolling production of a 4000-series aluminium alloy welding flux strip blank, slice layered eutectic silicon is avoided, the edge crack of the edge part of the prepared product is not greater than 5 mm, the problems of the continuous casting-rolling method in production of the 4000-series aluminium alloy casting-rolling strip blank are solved, the work flow is shortened, the equipment investment is reduced, and the production cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to a continuous casting and rolling production process of aluminum alloy flux strip blanks. Background technique [0002] Due to the high silicon content, low melting point, good melt fluidity, easy feeding and no brittleness of the final product, the 4000 series aluminum alloy is often used in the manufacture of aluminum alloy welding materials. At present, most of the cast-rolling methods in my country can only produce 1000 series, 3000 series, and 8000 series aluminum and aluminum alloy casting and rolling strips. The continuous casting and rolling production process of 4000 series aluminum alloy strips has the following problems: The appearance of lamellar eutectic silicon results in poor rollability of this series of aluminum alloys, which is prone to breakage and cannot be smoothly rolled and deformed; the temperature difference between the liquidus line and t...

AI Technical Summary

Problems solved by technology

At present, most of the cast-rolling methods in my country can only produce 1000 series, 3000 series, and 8000 series aluminum and aluminum alloy casting and rolling strips. The continuous casting and rolling production process of 4000 series aluminum alloy strips has the following problems: The appearance of lamellar eutectic silicon results in poor rollability of this series of aluminum alloys, which is prone to breakage and cannot be smoothly rolled and deformed; the temperature difference between the liquidus line and the solidus line is large, and in the actual production of casting and rolling The metal feeding performance in the liquid-solid two-phase region is very poor, and it is prone to hot spots and clogging. In addition, due to the high content of alloying elements, it is also prone to aluminum sticking

The main problems of the ingot hot rolling method are: long process flow, high production cost, large process edge cracking, low yield rate, large energy consumption and investment