Magnesium alloy plate rolling device

Abstract

The invention discloses a magnesium alloy plate rolling device, which comprises a roller pair consisting of an upper roller and a lower roller, and a front tension roller and a rear tension roller distributed at two sides of the roller pair; through the front tension roller, the tension part of a plate higher than or lower than a roller gap between the upper roller and the lower roller forms a structure that the plate is obliquely nipped into the roller gap; and because the plate blank is obliquely nipped into the roller gap, the rolling time of the upper and lower rollers is different, the grain orientation of the rolled magnesium alloy plate is oblique, the forming performance of the plate is improved, and the defects of cracks produced at the bent position during forming and the like are avoided.

Description

technical field [0001] The invention relates to a rolling equipment, in particular to a magnesium alloy rolling equipment. Background technique [0002] Magnesium alloy is currently the lightest metal material in industrial applications. It has the advantages of light weight, high strength, good rigidity, good processing performance, high dimensional stability, impact resistance, wear resistance, good attenuation performance and easy recycling. It can replace Plastic, steel and other materials meet the requirements of lightness, thinness and integration of products, and their applications in many fields have grown rapidly in recent years. [0003] Due to the low melting point of magnesium alloys, poor formability at room temperature, and good die-casting performance, the processing of magnesium alloys is mainly based on die-casting, but the mechanical properties of magnesium alloy die-castings are not ideal, the surface quality is poor, and it is impossible to produce large...

AI Technical Summary

Problems solved by technology

The existing rolling equipment is generally composed of roll pairs and front tension rolls and rear tension rolls distributed on both sides of the roll pairs. The front tension rolls, roll gaps and rear tension rolls are arranged in a straight line along the horizontal direction. The grain orientation of the magnesium alloy sheet produced by the equipment is along the vertical direction of the sheet surface, resulting in low stamping performance of the magnesium alloy sheet, which is limited to deformation with a small bending radius. If the deformation is large, cracks will appear at the bend and other defects

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