A method and system for adaptive temperature-controlled continuous rolling of magnesium alloys

Abstract

The invention discloses a self-adaptive temperature-control continuous rolling method for a magnesium alloy. The self-adaptive temperature-control continuous rolling method comprises the following steps of: (1) measuring an initial temperature and an initial thickness of a magnesium alloy plate strip, and obtaining and outputting a preset scheme according to the measured initial thickness and themeasured initial temperature, wherein the scheme at least comprises a preheating scheme and a rolling scheme of each rolling pass, and the rolling scheme at least comprises rolling passes and pre-pressing amount of each rolling pass; (2) rolling; and (3) completing rolling. The self-adaptive temperature-control continuous rolling method for the magnesium alloy disclosed by the invention measures the initial temperature and the initial thickness of the magnesium alloy plate strip; and a plate strip thickness measuring system is combined with a temperature measuring system, so that preset and real-time self-adaptive regulation is performed on the magnesium alloy plate strip rolling process by setting the preset scheme, and therefore, online temperature-control controlled rolling of the magnesium alloy plate strip is achieved. The method is beneficial for improving smooth performing of the rolling process and stabilizing product quality, and has the advantages of being less in manual intervention and realizing automatic production easily.

Description

technical field [0001] The invention relates to a rolling method, in particular to a magnesium alloy rolling method. Background technique [0002] With the development of global urbanization and industrialization, the number of vehicles and aircrafts has increased rapidly. However, this brings great challenges of energy consumption and low-carbon development. Lightweight is an effective means to reduce vehicle energy consumption and reduce carbon emissions. Magnesium alloy is a light metal structural material, and the density of pure magnesium is 1.74g / cm 3 , which is only 1 / 4 of steel and 2 / 3 of aluminum, so the use of magnesium alloy to make parts has a significant weight reduction effect and can significantly reduce energy consumption. [0003] In recent years, the demand for magnesium alloy sheets has been increasing in the fields of aerospace, automobiles and rail transit. Magnesium alloys have good hot extrusion plasticity, and extrusion is an economical and effect...

AI Technical Summary

Problems solved by technology

In the technical solution disclosed in this patent document, the reciprocating tension-free rolling method of single-stand multi-pass repeated biting has the following disadvantages: ① The repeated biting method will inevitably lead to low dimensional accuracy in the thickness direction, and the plate ② The result of tension-free rolling is poor plate shape, uneven, easy warping, and waves; The required production line is very long; ④ Repeated biting, frequent start and stop of the rolling mill leads to low production efficiency

However, this patent document does not disclose how to control the temperature to generate metal coils

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