GI Coil
The GI coil(galvanized coil), also known as GI sheet, is a metal coil that has a layer of zinc coated on the surface of cold-rolled or hot-rolled steel sheets. This coating effectively prevents direct contact between the steel sheet and the external environment, thus providing corrosion and rust resistance. The production processes of GI coils mainly include hot-dip galvanizing and electro-galvanizing. The GI coils supplied by Yuantai Derun possess excellent corrosion resistance and processing performance, and are widely used in products across various fields such as construction, home appliances, automobiles, containers, transportation, and agriculture.
Hot-Dip Galvanizing Steel Coil VS Electro-Galvanizing Steel Coil
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Type
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Zinc Layer Thickness
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Used For
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Surface
|
Corrosion Resistance |
|
Hot-Dip Galvanizing Steel Coil
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30-60 microns
|
In strong corrosive environments such as strong acids and alkalis
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rough
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strong |
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Electro-Galvanizing Steel Coil
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10-15 microns
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Indoor or mild outdoor environment
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smooth
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weak |
GI Steel Coil Making Process
The production process of galvanized coils mainly includes the following steps: pickling, cleaning, pretreatment, baking, galvanizing, cooling, coiling, etc.
Application
The application of galvanized steel coils is very extensive, covering multiple fields such as construction, automobile manufacturing, home appliance manufacturing, steel structure manufacturing, and conveyor equipment manufacturing.
1. Construction industry: Galvanized steel coils are widely used in the construction industry, mainly for the external and internal decoration of buildings, such as the manufacturing of roofs, columns, walls, doors and windows. The characteristics of galvanized steel coil, such as corrosion resistance, acid and alkali resistance, and aging resistance, can effectively protect building materials from external erosion, thus extending the service life of buildings.
2. Automobile manufacturing: Galvanized steel coils also play an important role in automobile manufacturing, and can be used for the manufacturing of car bodies, doors, roofs, and other components. Its excellent surface smoothness and coating performance not only provide a beautiful appearance for cars, but also improve their corrosion and wear resistance, thereby extending their service life.
3. Home appliance manufacturing: Galvanized steel coils are also widely used in the field of home appliance manufacturing, such as the manufacturing of refrigerators, washing machines, air conditioners, and other products. Its excellent processing performance and strength meet the requirements of home appliance manufacturing for product quality and appearance.
4. Steel structure manufacturing: In steel structure manufacturing, galvanized steel coils are commonly used to manufacture bridges, pipelines, steel structures, etc. Its excellent anti-corrosion performance can significantly extend the service life of steel structures and reduce maintenance costs.
5. Manufacturing of conveying equipment: Galvanized steel coils are also widely used in the manufacturing of conveying equipment, such as pipelines, conveyor belts, etc. Its excellent wear resistance and corrosion resistance can effectively extend the service life of the equipment.
In addition, galvanized steel coils are widely used in industries such as power, chemical, machinery manufacturing, metallurgy, etc., demonstrating their important position and role in the industrial field
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