Method for producing curtain aluminium sheet belt by 3004 alloy cast rolling blank

Abstract

The invention relates to a method for producing a curtain aluminium sheet belt by 3004 alloy cast rolling blank, which sequentially comprises the following steps of: a. blending, smelting and cast rolling, wherein 3004 alloy is adopted as raw material, and the thickness of the blank is 7.8-8.2mm after cast rolling; b. cold rolling until the thickness of the blank is 1.6-1.8mm, then carrying out intermediate annealing, carrying out heat preservation for 3h when the temperature is 370-400 DEG C, and discharging; c. cooling the material to be below 60 DEG C, and rolling to be 0.45mm on a machine; and d. rolling the finished product by foil, wherein the requirements of rolling by the foil to the convexity of a working roll comprise the upper convexity of 0.02-0.03mm and the roughness of 0.2-0.3mu m. The method utilizes the 3004 alloy material and the special manufacturing technique, thus obtaining the products meeting the performance requirements of the curtain aluminium sheet belt; furthermore, the cast rolling blank is used for production, so that the manufacturing cost is greatly lowered.

Description

technical field [0001] The invention relates to a method for manufacturing aluminum alloy materials, in particular to a method for producing curtain aluminum strips by using 3004 alloy casting and rolling blanks. Background technique [0002] At present, aluminum strips for curtains are generally produced by 5052 alloy hot rolling method. The 5052 alloy is a hot-rolled material. The hot-rolled method is to refine and purify the molten aluminum and cast it into a large flat ingot. Although the aluminum foil produced by the hot-rolled wool has high process stability and good product quality, the production cost is high and the one-time investment Compared with the aluminum foil wool produced by casting and rolling blanks, its cost is nearly 1,000 yuan / ton higher. Therefore, choosing cast-rolled billet aluminum foil wool instead of hot-rolled wool has become the choice to reduce costs. However, it is still a difficult problem to choose which material and matching process to o...

AI Technical Summary

Problems solved by technology

The 5052 alloy is a hot-rolled material. The hot-rolled method is to refine and purify the molten aluminum and cast it into a large flat ingot. Although the aluminum foil produced by the hot-rolled wool has high process stability and good product quality, the production cost is high and the one-time investment Compared with the aluminum foil wool produced by casting and rolling blanks, its cost is nearly 1,000 yuan / ton higher

However, it is still a difficult problem to choose which material and supporting process to obtain the aluminum strip for curtains that meets the performance requirements.