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Method for conducting anti-fingerprint treatment for galvanized sheet on color-coating production line

A galvanized sheet and anti-fingerprint technology, which is applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc., can solve the problem that no galvanized sheet anti-fingerprint treatment has been found, and achieve the effect of improving the cashing rate

Inactive Publication Date: 2019-04-16
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, no anti-fingerprint treatment technology for galvanized sheet has been found on the color coating line

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for anti-fingerprint treatment of galvanized sheets on a color-coating line. The color-coated sheet production line at least includes a tension leveler, a cleaning section, an initial coating curing furnace, a roller coater, an initial coating water quench, and a paint tray. , fine coating curing furnace, fine coating water quenching, coiler and other facilities, the treatment method includes the following steps:

[0030] 1) Uncoiling the galvanized sheet;

[0031] 2) Tension leveling, the elongation rate of tension leveling is controlled at 0.5%;

[0032] 3) Carry out degreasing agent cleaning and rinsing to galvanized sheet; When degreasing agent is cleaned, degreasing agent concentration is controlled at 2.5%;

[0033] 4) Blow dry after cleaning;

[0034] 5) Carry out anti-fingerprint coating treatment on galvanized sheet; (fingerprint-resistant agent)

[0035] 6) Baking and curing; (primary coating roller coater)

[0036] 7) Carry out water quenching an...

Embodiment 2

[0041] A method for anti-fingerprint treatment of galvanized sheets on a color-coating line. The color-coated sheet production line at least includes a tension leveler, a cleaning section, an initial coating curing furnace, a roller coater, an initial coating water quench, and a paint tray. , fine coating curing furnace, fine coating water quenching, coiler and other facilities, the treatment method includes the following steps:

[0042] 1) Uncoiling the galvanized sheet;

[0043] 2) Tension leveling, the elongation rate of tension leveling is controlled at 1.5%;

[0044] 3) Carry out degreasing agent cleaning and rinsing to galvanized sheet; When degreasing agent is cleaned, degreasing agent concentration is controlled at 0.8%;

[0045] 4) Blow dry after cleaning;

[0046] 5) Carry out anti-fingerprint coating treatment on galvanized sheet; (fingerprint-resistant agent)

[0047] 6) Baking and curing; (fine coating roller coater)

[0048] 7) Carry out water quenching and c...

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Abstract

The invention provides a method for conducting anti-fingerprint treatment for a galvanized sheet on a color-coating production line. The anti-fingerprint treatment is carried out on galvanized band steel which is not subjected to posttreatment on the color-coating production line, a production method of color-coating production line roller coating is adopted, coating of an anti-fingerprint coatingis evener, the weights of different film weights of the anti-fingerprint coating are more effectively controlled, galvanized anti-fingerprint products which meet market requirements are produced, newfunctions of the color-coating production line are developed, and good economic benefits can be obtained. Compared with the prior art, the method for conducting the anti-fingerprint treatment for thegalvanized sheet on the color-coating production line fills a technology gap of conducting the anti-fingerprint treatment for the galvanized sheet on the color-coating production line, and the new functions of the color-coating production line are developed. In addition, the demand rate of orders is improved by the method, and comprehensive cost reduction achieves above 200 yuan per ton.

Description

technical field [0001] The invention belongs to the production field of cold-rolled sheets, and relates to a method for anti-fingerprint treatment of galvanized sheets on a color coating line. Background technique [0002] In the production of galvanizing line, galvanized products without post-treatment will be produced due to various reasons. This part of unplanned products needs to be sold at a reduced price. White rust is likely to occur during storage, transportation and use, resulting in quality disputes Losses will adversely affect the efficiency and reputation of the enterprise. [0003] For such galvanized coils without post-treatment, in addition to oiling on the galvanizing production line, post-treatment in other production lines is also a remedy. Chinese patent application number CN201110090442.6 discloses a chromium-free passivation treatment method for galvanized sheets, which is to perform chromium-free passivation treatment on GI or GA galvanized products on...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D5/00B05D3/02
CPCB05D3/02B05D5/00B05D7/14
Inventor 李虹云张四方陈德春胡超刘明康王茹玉李山桐马新荣汤晓东蔡明钱鑫
Owner MAANSHAN IRON & STEEL CO LTD
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