Process and device for flattening W-like arc-shaped magnesium alloy blank plate

Abstract

The invention relates to the technical field of processing of novel nonferrous metal materials and discloses a process and device for flattening a W-like arc-shaped magnesium alloy blank plate. The process comprises the following step of: successively flattening the W-like arc-shaped plate for three times: (1) carrying out broadening by adopting a W-like gap constituted by two corresponding concave and convex arc-shaped rollers of an arc roller flattening machine; (2) obtaining a smooth magnesium alloy plate by adopting a five-roller flattening machine; and (3) carrying out smoothing and warm rolling with 5% of rolling reduction by adopting a finishing flattening machine to eliminate an extrusion slip line and obtaining a magnesium alloy plate surface with the thickness of 2mm-4mm and the broad width of 620mm by flattening. The device comprises a preliminary flattening machine, a flat plate flattening machine, the finishing flattening machine and a synchronous control system which are arranged along a discharge axial line of the magnesium alloy plate at an outlet of an extruding machine. According to the process and the device disclosed by the invention, a semi-finished product, namely the W-like arc-shaped magnesium alloy blank plate which is produced by a small-tonnage extruding machine, can be flattened, the purpose of increasing the breadth can be achieved by flattening the curved surface, and the flattening of the W-like arc-shaped magnesium alloy blank plate is realized. The process and the device disclosed by the invention have the characteristics of optimized process, reasonable equipment and low investment.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal material processing, in particular to a process and a device for flattening a W-shaped arc-shaped magnesium alloy slab. Background technique [0002] Magnesium is one of the most abundant elements on the earth. In current engineering applications, it is the metal material with the lightest mass (1.74g / cm3) and the highest specific strength. Compared with light engineering plastics, magnesium alloys have higher elasticity and Plastic deformation ability; compared with aluminum alloy (2.8g / cm3), magnesium alloy is not only light, but also has high anti-vibration and noise reduction ability, and has strong corrosion resistance, electromagnetic shielding performance, radiation protection performance, recycling rate Advanced advantages. Therefore, it is the most ideal and practical lightweight structural material in pillar industries such as transportation (automotive), aerospace, letterpres...

AI Technical Summary

Problems solved by technology

It is not suitable for continuous production in rolls

[0007]2. Finish rolling after extruding the billet. The advantage is that the material structure is good, it is easy to realize continuous production and supply in coils. The disadvantage is that the one-time investment is large, Shape control is difficult

[0008] It can be seen that the high cost caused by high investment in process equipment, low-efficiency production, and low yield limit the mass application of high-performance magnesium alloy rolled sheets

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