0.35mm-2mm Prime Hot Dipped Galvanised Coil Dx51d Z275 Zinc Coated

0.35mm-2mm Prime Hot Dipped Dx51d Z275 Zinc Coated Galvanized Steel Coil Price

Galvanized steel coil, immersing the thin steel plate in the molten zinc bath, and adhering a layer of zinc thin steel plate on the surface. It is mainly produced by the continuous galvanizing process, that is, the coiled steel plate is continuously immersed in the zinc-melted plating tank to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also made by the hot-dip method, but it is heated to about 500 °C immediately after exiting the tank to form an alloy film of zinc and iron. This galvanized steel coil has good paint adhesion and weldability.

◆ 1. Pre-Treatment Process

Some rolling oil and other contaminants remain on the surface of cold rolled steel sheets following processing. These are removed by passing the electrically charged sheet through an alkaline solution which induces an electrochemical reaction.

◆ 2. Annealing

The material properties of the pre-treated steel sheet can be altered and improved through recrystallization during the annealing process.

◆ 3. Hot-Dip Galvanizing

After passing through the annealing furnace, steel sheets are dipped into a zinc pot where molten Zn is coated onto the surface. The desired coating weight is achieved by removing excess zinc before solidification with high-pressure air from an air knife.

◆ 4. Galvannealing

The surface of a steel sheet, after the air knife, can be coated with a zinc compound prior to reheating in an annealing process. Zn atoms diffuse into the Fe to create a Zn-Fe series alloy.

◆ 5. SPM & Chemical Treatment

In order to achieve a flat surface and an elegant finish, the steel sheet is processed with a skin pass mill. In order to prevent the white rust, which often forms on the surface of activated zinc, and to improve corrosion resistance, the surface is coated with a Cr-free resin.

◆ 6. Inspection & Coiling

Located at the line’s exit section are a side trimmer, inspection table, oil coating machine and coiling equipment. At this station, all products are inspected and judged relative to material specifications required by the customer.

We are the exporters, stockiest & suppliers of Stainless Steel,Galvanized steel,Carbon steel,Aluminum steel and Nickel Alloy Coil,Strips,Sheets, Tube,Foil and Shims. Wuxi Laiyuan Special Steel Co., Ltd. takes immense pleasure in introducing itself as one of the leading names in the Engineering Industry having Integrated Steel Complex with modern integration to produce Strips, Coil, Sheet, Foil. we have experience in this field for many years.

We have a self contained unit with forming, Forging, Welding, Machining,Heat treatment, and Facilities for physical & Chemical testing, This enables us to meet strict requirements of manufacturing and testing codes.

Each of our department right from procurement, production, inventory, market, sales and services are fully automated for a better supply chain management, so as to offer the best product quality and prompt service to our clients. Along with technological equipment, manpower is also given special attention. All our professionals are highly dedicated and committed to their client's requirements. Our team of workers starves to provide quality service to you according to your specification.

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