Rapid calculation method for corrosion resistance index of tin-plated steel plate

A tin-plated, fast computing technology, applied in chemical statistics, chemical machine learning, chemical data mining, etc., can solve problems such as inconvenient use, and achieve the effects of reducing costs, saving time, and avoiding experiments

Inactive Publication Date: 2022-01-28
上海维解信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires more than 20 hours of testing time and is inconvenient to use

Method used

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  • Rapid calculation method for corrosion resistance index of tin-plated steel plate
  • Rapid calculation method for corrosion resistance index of tin-plated steel plate
  • Rapid calculation method for corrosion resistance index of tin-plated steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the rapid calculation model of the tin-plated steel plate corrosion resistance index that is established based on the characteristic data mapping combination of 21 tin-plated steel plate E-t curves extraction combination intermediate data, its modeling is accurate as figure 2 shown.

[0032] figure 2 Based on the intermediate data after mapping transformation, the modeling results of the rapid calculation model for the ATC value of the corrosion resistance index of tin-plated steel plate are established by using artificial neural network calculations. figure 2 The abscissa in the middle is the actual value of the ATC value, and the ordinate is the ATC value calculated by the established model. figure 2 The correlation coefficient between the actual value of the ATC value and the calculated value of the model is 1, indicating that the accuracy of the modeling results is very high.

Embodiment 2

[0033] Example 2: Collect 3 new tin-plated steel samples, and their basic data, intermediate parameters, and ATC value calculation results are shown in Table 3.

[0034] H 1

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Abstract

Tin-plated steel plates are important materials for manufacturing food and beverage cans. The corrosion resistance of the tin-plated steel plates to an acid medium is a main quality index. At present, a standard test method for measuring the ATC value is adopted at home and abroad to test the corrosion resistance of the tin-plated thin steel plates. According to the method, grapefruit juice or tomato juice is used as a medium to measure the current between a tin-plated thin steel plate without a tin layer and a pure tin electrode, and the current is used as a representation of the corrosion inhibition capability of an alloy layer. However, the method needs more than 20 hours of test time and is inconvenient to use. In the process of measuring the tin plating amount and the iron-tin alloy amount of the tin-plated steel plate by an electricity consumption method, it is found that a curve of the constant-current anode dissolution potential E of the tin-plated steel plate changing along with time t contains information of the compactness degree of the alloy layer, and potentially influences the corrosion resistance of the tin-plated steel plate. Therefore, a mathematical model of the relation between the E-t curve and the corrosion resistance of the tin-plated steel plate is explored by using a data mining algorithm, and a simple and rapid calculation method for the corrosion resistance ATC value of the tin-plated steel plate is established.

Description

technical field [0001] The invention relates to quality detection in the production process of tinned steel sheets, in particular to a fast calculation method for the corrosion resistance index of tinned steel sheets. Background technique [0002] Tin plate is an important material in the manufacture of food and beverage cans. Corrosion resistance to acidic medium is one of its main quality indicators. Tin-plated steel plate is tin-plated steel plate, which is heated by resistance and induction to melt the tin layer and react with the iron matrix, forming FeSn between the tin layer and the iron. 2 Made by the "reflow" process of the alloy layer as the main component. Although the surface of the tin layer after "reflow" is relatively smooth, there are still many tiny pinholes, and the resulting alloy layer is not completely dense. During the storage of cans, the exposed iron surface in the pinholes and the surface of the tin layer form micro-batteries, which is the main re...

Claims

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Application Information

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IPC IPC(8): G16C20/70
CPCG16C20/70
Inventor 周晶晶刘太行刘太昂周央刘振昌刘远刘婷婷朱鲁阳吴治富朱峰
Owner 上海维解信息科技有限公司
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