3003H14 aluminum alloy sheet and production method thereof

Abstract

The invention provides a 3003H14 aluminum alloy sheet and a production method thereof. The 3003H14 aluminum alloy sheet comprises the following components in percentage by mass: less than or equal to0.20% of Si, 0.40-0.50% of Fe, less than or equal to 0.15% of Cu, 1.05-1.20% of Mn, less than or equal to 0.05% of Mg, less than or equal to 0.05% of Cr, less than or equal to 0.10% of Zn, 0.01-0.05%of Ti, less than or equal to 0.05% of other single impurity, less than or equal to 0.15% of all impurities in all and the balance being Al. The production method comprises the following steps: carrying out fusion casting, saw cutting, face-milling, ingot casting heating, hot rolling, cold rolling, cleaning, pulling straightening and transverse shear in sequence. The production method has the beneficial effects that the production method can ensure the performances of the product and shorten the production process; the mechanical properties are controlled by hot rolling plus one-pass cold rolling; and the 3003H14 aluminum alloy sheet product with the thickness of 2.0-4.0mm is produced, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and in particular relates to a 3003H14 aluminum alloy plate and a production method thereof. Background technique [0002] 3003 aluminum alloy is a kind of rust-proof aluminum widely used in Al~Mn series alloys. Its plate and strip series products have moderate strength, good corrosion resistance, weldability, and easy processing and forming. 3003 aluminum alloy sheets and strips in different heat treatment states are widely used in conductors, cooking utensils, instrument panels, shells and architectural decorations, building materials interior and exterior materials, vehicle interior materials, etc. Among them, the H14 state plate is the largest in terms of consumption and application range. species, the market prospect is broad. [0003] At present, the process flow of 3003H14 aluminum alloy plate is: melting and casting—sawing—ingot heating—hot rolling—cold rolling—inter...

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Problems solved by technology

[0003] At present, the process flow of 3003H14 aluminum alloy plate is: melting and casting—sawing—ingot heating—hot rolling—cold rolling—intermediate annealing—finished product cold rolling—cross cutting—packaging, the process is lengthy, the processing cost is high, and the surface quality cannot be satisfied Demand for high-end products

In order to ensure intermediate annealing and finished product performance, the thickness after hot rolling should reserve enough processing space for cold rolling. The hot rolling thickness is large and the efficiency is low; when using intermediate annealing, the temperature control of the annealing furnace is poor, which is easy to cause defects such as coarse grains; The rolling oil remaining on the surface of the strip after cold rolling is prone to defects such as brown annealing oil spots during intermediate annealing, and the surface quality cannot meet the requirements of high-end products

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