Preparation method for high-magnesium aluminum alloy O-state plate of 5XXX series

Abstract

The invention relates to a preparation method for a high-magnesium aluminum alloy O-state plate of 5XXX series. The method comprises the steps of smelting, refining, casting, soaking, saw cutting, surface milling, preheating, hot rolling, cross-cutting and uncoiling or edge trimming, saw cutting, packaging and warehousing and the like. According to the preparation method, the high-magnesium aluminum alloy O-state plate of the 5XXX series is prepared through a new production process, under the condition that the performance and structure stability of high-magnesium aluminum alloy are maintained, the production procedures can be reduced, and surface quality defects of the high-magnesium aluminum alloy can be reduced; products can be directly produced after the aluminum alloy plate with the thickness being equal to or larger than 3 mm is subjected to hot rolling, the product yield can be substantially increased, and production efficiency can be improved sufficiently.

Description

technical field [0001] The invention relates to the field of aluminum alloy processing, in particular to a method for preparing a 5XXX series high-magnesium aluminum alloy O-state plate. Background technique [0002] Aluminum and aluminum alloy materials have excellent properties such as low density, high specific strength, high specific stiffness, good elasticity, good impact resistance, corrosion resistance, wear resistance, high electrical conductivity, high thermal conductivity, easy surface coloring, easy processing, and recyclable regeneration. Features, widely used in transportation, shipping, packaging containers, architectural decoration, aerospace, machinery and electrical appliances, electronic communications, petrochemical and other industries. In the aerospace industry in particular, aluminum is used in significant quantities as it is the preferred lightweight structural material. [0003] Among traditional materials, although steel and polymer-based composite ...

AI Technical Summary

Problems solved by technology

This process has the following disadvantages: (1) an annealing process for finished products is added, which greatly increases the production cost; (2) during annealing, the aluminum alloy sheet is heat-treated at high temperature for a long time, which makes the surface of the aluminum alloy sheet partially oxidized, etc., and the surface brightness Unevenness, etc., which seriously affect the surface quality of aluminum alloy sheets

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