Description and Control of Tin Plate Surface Visual Quality

Wang, Bo; Zhang, Qing Dong; Yu, Meng; Zhang, Xiao Feng; Ni, Guohua

doi:10.4028/www.scientific.net/amr.145.510

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…This represents a significant material saving. [5,7] However, it is also necessary to improve the corrosion resistance properties of the protective layers at their minimum weight (1.0/1.1 ÷ 1.4/2.0 g/m 2 ). Minimizing the weight of the protective layer tightens the requirements for uniformity and quality of the deposited tin coating.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Annealing Method on the Properties of Twice Reduced Thin Steel Sheets

Majerníková¹,

Vilkovský²,

Hajduk³

2022

AMS

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Thin packaging steel sheet is currently used in the food industry, but it is also a frequently used material in other industries. Higher requirements for quality, reduction of energy and material intensity are the main factors that determine its development. The paper compares the test results of thin twice-reduced packaging sheets, which were produced by different annealing -continuous and batch method. Mechanical properties of these materials obtained by the uniaxial and biaxial tensile tests were compared. The anisotropic properties of thin steel sheets, which are demonstrated by the formation of ears on the cups, were evaluated by the deep-drawing cup test.

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Section: Introductionmentioning

confidence: 99%

The Influence of the Annealing Method on the Properties of Twice Reduced Thin Steel Sheets

Majerníková¹,

Vilkovský²,

Hajduk³

2022

AMS

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“…All the methods of testing of the properties of thin packaging sheets are particularly sensitive to the thickness of material and the problems with evaluation of the properties of sheets considerably increased during the evaluation of double reduced sheets, which thickness varies between 0.12 -0.18 mm. In the case of such thickness of sheets, final properties can be influenced by various factors (specimen production, method of clamping of the specimen, internal purity of steel, and internal and external imperfections) [2,7,8,9,14]. Preparation of specimens for the above mentioned testing methods is often very long and requires special equipment and machines.…”

Section: Introductionmentioning

confidence: 99%

Method of Evaluation of the Properties of Thin Steel Sheets by Springback Test

Spišák

Majerníková

Kaščák

2018

MSF

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Production of thin packaging sheets has gone through significant changes in recent years. Thickness of thin packaging sheets has decreased from 0.24mm down to 0.14 – 0.18mm due to the material saving, and the thickness of tin coating layer has decreased as well. Thin packaging sheets with the thickness lower than 0.18mm are produced with so called double reduction. Materials produced with this method possess higher strength properties and lower plastic properties. There exist several tests for examination of strength and plastic properties. Requirements of the processors of these sheets are that these tests are simple, without a complicated production of specimens, and easily repeatable. Exactly because of these reasons, the springback test is used for evaluation of double reduced packaging sheets by many processors from various countries. This contribution compares properties of double reduced thin packaging sheets obtained with the springback test, uniaxial tensile test and biaxial tensile test. Goal of this comparison is to objectify mechanical and plastic properties of packaging sheets obtained with the individual tests.

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“…19,20 Although Anecdotal evidence suggests that the roughness plays a role in tinplate/lacquer adhesion with roughness improving adhesion through a mechanism which has been reported in other substrate/coating applications as it offers greater surface area for mechanical adhesion 23,24 ; there is no such published evidence for tinplate/lacquer adhesion. However, increasing the roughness can come at the expense of important visual characteristics such as gloss and haze 25 and lead to the exposure of base steel iron, providing potential corrosion initiation sites, [26][27][28] particularly at low tin coating weights.…”

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confidence: 99%

Identifying interlayer surface adhesion failure mechanisms in tinplate packaging steels

et al. 2019

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Tinplate surface morphology and chemistry is adjusted during the manufacturing process in order to meet the demands of its subsequent product use, the commonest being visual appearance and food packaging stability. A comprehensive experimental study on an industrial tinning line varied the surface roughness and the tin coating weight with the characterization through X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), white light interferometer (WLI), optical imaging, and lacquer adhesion measurement. Increasing tin weight lowers the adhesion through the production of a thicker disorganized tin oxide layer which has a greater tendency to fracture under shearing forces. There is no evidence that the substrate roughness improves the adhesion of the lacquer. Analysis of the failure location identifies fracture in the tin oxide layer below the passivation layer. The findings have impacts on the next generation of passivation materials for tinplate as it has been clearly demonstrated that growth in tin oxide thickness, particularly when unstructured, has a detrimental impact on lacquer adhesion.

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Description and Control of Tin Plate Surface Visual Quality

Cited by 4 publications

References 1 publication

The Influence of the Annealing Method on the Properties of Twice Reduced Thin Steel Sheets

The Influence of the Annealing Method on the Properties of Twice Reduced Thin Steel Sheets

Method of Evaluation of the Properties of Thin Steel Sheets by Springback Test

Identifying interlayer surface adhesion failure mechanisms in tinplate packaging steels

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