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A method for controlling the adhesion of coating film on tinplate

A tinplate, adhesion technology, applied in the direction of coating, electrolytic coating, surface reaction electrolytic coating, etc., can solve problems such as poor adhesion of coating film and product quality

Active Publication Date: 2020-12-11
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for controlling the adhesion of the coating film of the tinplate to solve the current product quality problems caused by the poor adhesion of the coating film

Method used

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  • A method for controlling the adhesion of coating film on tinplate

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Embodiment Construction

[0023] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0024] In the embodiment of the present invention, after the tinplate is fabricated, the tinplate will be coated with a coating to generate coating adhesion due to product requirements. However, the poor adhesion of the coating film will bring about a series of product quality problems, so the main purpose of the present invention is to change the adhesion of the coating film, and then improve the quality of the product

[0025] For the problem of poor coating adhesion, the corresponding range of coating adhesion will be determined according to the performance model of the tinplate. For example: MR T-4CA, red bull iron products, require smear adhesion level Ⅰ-Ⅱ.

[0026] Secondly, in th...

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Abstract

The invention discloses a method for controlling film adhesion of a tin plate. The method comprises the steps that surface roughness of the tin plate is determined based on glossiness of the tin plate; and parameters for controlling the passivation technology are determined based on the surface toughness of the tin plate, and then the film adhesion of the tin plate is controlled to be I-II level.The surface toughness and a passivaton film are controlled, and therefore the film adhesion of the tin plate is controlled to be I-II level to meet requirements. The method can ensure stably operationof an existing production line on the basis of not affecting the requirements for glossiness of finished products, ensuring that the appearance is not affected and not increasing the equipment transformation cost, film adhesion is improved, and objection about quality is reduced or even avoided.

Description

technical field [0001] The present application relates to the field of tin-plated product processing, in particular to a method for controlling the adhesion of tin-plated coating film. Background technique [0002] During the processing of tinplate products, due to improper adaptation of edge roughness and improper adjustment of passivation process parameters, the adhesion level of the coating film cannot meet the requirements, resulting in increased costs. [0003] The poor adhesion of the coating film will cause the paint film on the edge of the finished tank to fall off during the subsequent processing of the user, affecting continuous production, resulting in batches of closed products and waste products, resulting in quality disputes, which will lead to increased production costs. Moreover, poor adhesion of the coating film will also lead to a decrease in the corrosion resistance of the product, resulting in corrosion and leakage of the tank during subsequent product us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/00C25D21/12
CPCC25D11/00C25D21/12
Inventor 刘丽珍周纪名齐智远王振文刘伟方圆宋男张旭明王挺宋军涛李永新胡小明李海旭张宝来
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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