Rolling device and method for preparing high-toughness magnesium alloy

Abstract

The invention discloses a rolling device for preparing a high-toughness magnesium alloy. The rolling device for preparing the high-toughness magnesium alloy comprises a first hard alloy lining plate assembly, the first hard alloy lining plate assembly comprises an upper lining plate and a lower lining plate, a plurality of grooves which obliquely extend in the front-back direction and are formed at intervals are formed in the lower surface of the upper lining plate, a plurality of protrusions corresponding to the grooves are arranged on the upper surface of the lower lining plate, and a first rolling area used for rolling a magnesium alloy sample is formed between the upper lining plate and the lower lining plate. When the magnesium alloy sample is placed in the first rolling area to be rolled, the magnesium alloy sample is limited by the structure of the first hard alloy lining plate assembly in the rolling deformation process, so that the magnesium alloy sample is subjected to incomplete symmetric deformation, and the magnesium alloy sample subjected to inclined bending deformation is generated after rolling; and the magnesium alloy sample has the effect of shearing force in the rolling direction, the normal direction or the transverse direction, the grain structure of the magnesium alloy can be evenly refined, the basal texture is weakened, and therefore the comprehensive mechanical property of the magnesium alloy is improved.

Description

technical field [0001] The invention relates to the technical field of plastic deformation processing of magnesium alloys, in particular to a rolling device and method for preparing high-strength and tough magnesium alloys. Background technique [0002] Magnesium alloy is the light-weight structural material with the smallest density among light alloys, and has a series of advantages such as high specific strength, specific stiffness and good damping performance at the same time. Therefore, magnesium alloy has broad application prospects. Lining plate rolling It is one of the common processing methods for magnesium alloy sheets, but the traditional liner rolling uses a rectangular liner, so that the upper and lower surfaces of the magnesium alloy after the liner rolling are completely symmetrically deformed, and the magnesium alloy will produce strong The basal surface texture causes serious anisotropy, resulting in poor comprehensive mechanical properties of the magnesium a...

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Problems solved by technology

[0003] The main purpose of the present invention is to propose a rolling device and method for preparing high-strength and toughness magnesium alloys, aiming at solving the problem that the lining plates used in traditional liner rolling are arranged in a rectangular shape, so that the upper and lower surfaces of the magnesium alloy after the liner rolling are Problems producing perfectly symmetrical deformations

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