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Making process of hot galvanized fingerprint-proof plate

A manufacturing method and anti-fingerprint technology, applied in hot-dip galvanizing process, paint containing biocide, device for coating liquid on the surface, etc., can solve the high manufacturing cost of electro-galvanizing process and the equipment configuration in the post-processing section cannot meet the production requirements Anti-fingerprint plate, affecting the corrosion resistance of products and other issues, to achieve the effect of improving the ability of anti-red rust

Active Publication Date: 2007-06-06
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the fingerprint-resistant plate produced by the hot-dip galvanizing process, the manufacturing cost of the electro-galvanizing process is high, and the zinc layer is thin, which affects the corrosion resistance of the product.
At present, the improved Sendzimir process of hot-dip galvanizing production technology is mainly used in China. Affected by the production process, the products produced by the improved Sendzimir process have no matter their surface quality (including spangle structure) or the range of steel types that can be produced. , are difficult to meet the requirements of anti-fingerprint board; in addition, the post-processing section of the Sendzimir process is generally not considered to produce anti-fingerprint boards during design, so the equipment configuration of the post-processing section cannot meet the needs of producing anti-fingerprint boards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Uncoiling of cold-rolled hard coils, straightening, head and tail cutting, welding, electrolytic degreasing cleaning, vertical continuous annealing furnace, galvanizing process, air cooling, intermediate looper, skin finishing process, tension leveling, roller coating process, hot air Drying, cooling, export looper, trimming, oiling, coiling.

[0020] In the galvanizing process, the weight composition of the galvanizing solution is Al: 0.17%; Pb = 0.003%; the temperature of the zinc solution is 455°C, and the temperature of the strip steel entering the zinc pot is 450°C; the anti-fingerprint agent is organic silane resin CET-378PM.

[0021] In the skin pass process, the steel strip temperature before entering the light machine is 40°C, the roughness of the control plate is Ra=0.5μm, and the peak value Pc is 100.

[0022] In the roller coating process, the line speed is 100m / min; the rotation speed of the coating roller / feeding roller is 130%; the pressure of the coating...

Embodiment 2

[0024] Uncoiling of cold-rolled hard coils, straightening, head and tail cutting, welding, electrolytic degreasing cleaning, vertical continuous annealing furnace, galvanizing process, air cooling, intermediate looper, skin finishing process, tension leveling, roller coating process, hot air Drying, cooling, export looper, trimming, oiling, coiling.

[0025] In the galvanizing process, the weight composition of the galvanizing solution is Al: 0.2%; Pb = 0.002%; the temperature of the zinc solution is 460°C, and the temperature of the strip steel entering the zinc pot is 460°C; the anti-fingerprint agent is organic silane resin CET-378PM.

[0026] In the skin pass process, the temperature of the steel strip before entering the light machine is 38°C, the roughness of the control panel is Ra=0.8μm, and the peak value Pc is 110.

[0027] In the roller coating process, the line speed is 110m / min; the rotation speed of the coating roller / feeding roller is 100%; the pressure of the c...

Embodiment 3

[0029] Uncoiling of cold-rolled hard coils, straightening, head and tail cutting, welding, electrolytic degreasing cleaning, vertical continuous annealing furnace, galvanizing process, air cooling, intermediate looper, skin finishing process, tension leveling, roller coating process, hot air Drying, cooling, export looper, trimming, oiling, coiling.

[0030] In the galvanizing process, the weight composition of the galvanizing solution is Al: 0.23%; Pb = 0.001%; ​​the temperature of the zinc solution is 465°C, and the temperature of the strip steel entering the zinc pot is 465°C; the anti-fingerprint agent is organic silane resin CET-378PM.

[0031] In the skin pass process, the temperature of the steel strip before entering the light machine is 35°C, the roughness of the control panel is Ra=1.2μm, and the peak value Pc is 120.

[0032] In the roller coating process, the line speed is 130m / min; the rotation speed of the coating roller / feeding roller is 70%; the pressure of the...

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Abstract

The making process of hot galvanized fingerprint-proof plate includes the following steps: uncoiling, leveling, end cutting, welding, rinsing, annealing, galvanizing, cooling, intermediate looping, smoothing, straightening, roller coating, drying, cooling, outlet looping, edge cutting, oiling and coiling. In the galvanizing step, galvanizing solution with Al in the concentration of 0.17-0.23 wt% and Pb in the concentration not higher than 0.003 % and at the temperature of 455-465 deg.c is used. Compared with electrolytic zinc plated fingerprint-proof plate, the hot galvanized fingerprint-proof plate has the same physical and chemical performance indexes reached except the slightly inferior surface quality, so that the hot galvanized fingerprint-proof plate may be used to replace partial electrolytic zinc plated fingerprint-proof plate.

Description

Technical field: [0001] The invention belongs to a method for manufacturing a hot-dip galvanized anti-fingerprint board. Background technique: [0002] In the production process of home appliances, due to the requirements of the process, many parts are touched by workers many times, and the sweat stains on the hands of workers will pollute the surface of the parts, affecting the appearance and even affecting other properties such as coating. In addition, the steel plate needs a certain degree of lubricity in the process of transportation and stamping to reduce the damage to the surface of the steel plate due to friction. In order to meet these characteristics, some domestic iron and steel companies have developed electro-galvanized anti-fingerprint boards, and are widely used in electronics and electrical industries, such as computers, film and television, due to their good fingerprint resistance, electrical conductivity, self-lubrication and corrosion resistance. and audio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06C23C2/02C23C2/40C23C2/26C09D5/16B24C1/00B05C1/12B05D3/00C23F17/00
Inventor 杨兴亮刘劼刘焕龙章一樊赵云龙
Owner MAANSHAN IRON & STEEL CO LTD
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