Molten aluminum gas-removing and gas-supplying control method, device, system and computer storage medium

Abstract

The invention provides a molten aluminum gas-removing and gas-supplying control method. The method comprises the following steps: collecting an X-ray emitted from molten aluminum through an X-ray receiver, performing spectral analysis on the X-ray, and determining major metal components contained in the molten aluminum; according to the major metal components, determining types of inert gases which need to be fed into a molten aluminum tank; according to a first difference value of hydrogen content in the molten aluminum in a cylindrical container and setting standard hydrogen content, controlling an opening degree of a proportional valve so as to control an input quantity of the inert gas, wherein while the first difference value is greater than a first setting threshold, controlling an opening of the proportional valve to be enlarged so as to increase input of the inert gas; and while the first difference value is smaller than the first setting threshold, controlling the opening of the proportional valve to be reduced so as to decrease the input of the inert gas. The provided method is capable of acquiring the hydrogen content in the molten aluminum and determining the componentsof the molten aluminum, and based on the hydrogen content and the components of the molten aluminum, automatically controlling the selection and the precision input quantity of the inert gases. The hydrogen removing effect is good and the inert gases can be saved.

Description

technical field [0001] The invention relates to the field of aluminum liquid degassing, in particular to a method, device, system and computer storage medium for controlling the degassing and supply of aluminum liquid. Background technique [0002] In the process of aluminum processing, aluminum alloy absorbs hydrogen in liquid state, and the hydrogen content of molten aluminum will seriously affect the quality of castings. During the condensation process, as the solubility of hydrogen gas decreases, the hydrogen gas has no time to escape from the solution, which will cause a series of defects such as white spots on the surface of the plate, increased pinholes, and a decrease in the mechanical properties of the material in the subsequent rolling process. And eventually cause the product to be scrapped, therefore, it is necessary to carry out degassing treatment to the aluminum liquid. [0003] In the currently adopted scheme, firstly, the manual adjustment of the inert gas ...

AI Technical Summary

Problems solved by technology

During the condensation process, as the solubility of hydrogen gas decreases, the hydrogen gas has no time to escape from the solution, which will cause a series of defects such as white spots on the surface of the plate, increased pinholes, and a decrease in the mechanical properties of the material in the subsequent rolling process. And eventually lead to product scrapping, therefore, it is necessary to degas the aluminum liquid

[0003] In the currently adopted scheme, firstly, the manual adjustment of the inert gas supply volume is used, which makes it difficult to accurately control the gas supply volume, and it is prone to incomplete hydrogen removal or waste of inert gas; secondly, the inertness cannot be selected according to the components in the aluminum liquid Gas, so that the hydrogen removal effect is not optimal

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