Hot roller heating and rolling device and method for magnesium alloy strips

Abstract

The invention discloses a hot roller heating and rolling device and method for magnesium alloy strips. The device comprises a conveying roller way, one or more rolling mill stands, one or more rollers, a first infrared thermometer, a second infrared thermometer, induction coils, a PLC and a rolling parameter operation table, wherein the conveying roller way is composed of one or more conveying rollers, and the magnesium alloy strips are arranged between the rollers; in the rolling process of the magnesium alloy strips, the rollers transfer heat to rolled pieces for realizing the on-line heating and rolling technology of magnesium alloy on the basis that the magnesium alloy has the advantages that the heat conduction coefficient is high, heat transfer is fast and the high-frequency induction heating efficiency is high, the outlet temperature of the rolled pieces can be accurately controlled by controlling the surface induction heating temperature of the rollers, heating and rolling can be carried out on normal-temperature strips, temperature compensating and rolling can be carried out on hot strips, the temperature drop rate of the strips in the rolling process can be lowered, the occurrence probability of edge cracks can be lowered, and the quality of finished products can be improved.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy strip processing, and in particular relates to a hot roll heating and rolling device and method for a magnesium alloy strip. Background technique [0002] As an advanced lightweight metal structure material, magnesium alloy has high specific strength and good impact resistance, which can meet the lightweight requirements of aerospace, automobiles and electronic products, and reduce energy consumption and environmental pollution. One of the fastest growing materials for industrial applications. However, the hexagonal close-packed lattice structure determines that the plastic deformation ability of magnesium alloy at room temperature is poor, which greatly limits its application range. Rolling, as an important processing and deformation method of magnesium alloys, has attracted extensive attention. Due to the poor deformation ability of magnesium alloys at room temperature, the commonly use...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: aiming at the disadvantages of low plastic deformation ability caused by rapid temperature drop in the above-mentioned existing magnesium alloy strip rolling process, low off-line heating efficiency of the heating furnace, and high energy consumption for rolling gap annealing, the present invention The purpose is to provide a device and method with simple structure, low manufacturing and maintenance costs, and capable of well realizing on-line heating and rolling of magnesium alloys

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