Baosteel stainless steel hot-rolled coil engineering technology

Stainless steel 1202 27/06/2023 1156 Hannah

Introduction Baosteel Group is a Chinese state-owned steel company which is based in Shanghai that provides reliable and cutting-edge cold-rolling technology used to manufacture cold-rolled stainless steel plates. Cold-rolled stainless steel plates are produced by cold working hot rolled steel sh......

Introduction

Baosteel Group is a Chinese state-owned steel company which is based in Shanghai that provides reliable and cutting-edge cold-rolling technology used to manufacture cold-rolled stainless steel plates. Cold-rolled stainless steel plates are produced by cold working hot rolled steel sheets or strips. This process refers to rolling at room temperature with the use of large scale rolling equipment. This process has an advantage over traditional hot rolling as it can produce very thin sections with a smaller compressive force. A further advantage is that it provides a good strength and high corrosion resistance.

Process Technology

A broad range of process technologies and solutions are present in the Baosteel cold-rolling plant, among which is the introduction of a series of latest cold-rolling processes. The process includes continuous cold rolling and intermittent rolling.

Firstly, the continuous cold-rolling process optimizes the cold-roll process and can produce a product which is precise in size, with excellent surface quality and high product quality. This technique uses complex logic control, because of which it has high levels of automation and precise control of spatial and mechanical precision.

Secondly, the use of the intermittent cold-rolling process ensures improved surface properties and efficient coil production. It also produces an even plastic deformation on each plate, so the plate width can be adjusted easily. Briefly, it is an economical process which yields low costs and a high quality product.

Finally, the use of deep drawing process in cold rolling ensures to get a deeply drawn and precise product with excellent surface finish which is highly resistant to corrosion and heat.

Product Quality and Finishes

The Baosteel cold-rolled stainless steel plates are capable of delivering up to the highest product quality and finish. The product quality they offer meets the highest standards both in terms of homogeneity, flatness and hardness. Furthermore, all products are processed with external and internal oil passivation, which increases the corrosion resistance.

Baosteel’s Cold-Rolled Stainless Steel Plates

Cold-rolled stainless steel plates from Baosteel provide a number of benefits and features over other steel plates. These include:

• Durability: Stainless steel is considered to be the most durable metal available. Baosteel cold-rolled stainless steel plates are made using a combination of strong alloying elements and an advanced manufacturing process that ensures an even, strong product that can withstand tough conditions.

• Corrosion Resistance: As stainless steel is an alloy of iron, chromium and other elements that possess an attractive light grey color, they offer superior corrosion resistance compared to other metal plates.

• Non-Conductivity: Baosteel cold-rolled stainless steel plates do not easily transfer electricity, so they are ideal for use in industrial, commercial and consumer applications where corrosion is a major concern.

• Recyclable and Sustainable: Cold-rolled stainless steel plates from Baosteel are 100% recyclable and are considered to be a ‘green’ product.

Conclusion

Baosteel cold-rolled stainless steel plates offer a wide range of features, which makes them perfect for commercial and industrial applications. Their focus on providing innovative, advanced manufacturing processes combine with their commitment to quality ensures that the final products are of a consistently high standard. The extensive range of finish options available makes them the ideal choice for any customer that requires reliable and quality cold-rolled stainless steel plates.

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Stainless steel 1202 2023-06-27 1156 LuminousGaze

Processing Technology of AL-ZN Coated Steel Strip at Baosteel Hot Rolling Mill Baosteel Hot Rolling Mill is dedicated to the production and processing of AL-ZN coated steel strip. The strip is strip-shaped cold-rolled steel made by coating an aluminum-zinc alloy on the surface of the steel strip.......

Processing Technology of AL-ZN Coated Steel Strip at Baosteel Hot Rolling Mill

Baosteel Hot Rolling Mill is dedicated to the production and processing of AL-ZN coated steel strip. The strip is strip-shaped cold-rolled steel made by coating an aluminum-zinc alloy on the surface of the steel strip. The steel strip passes through a degreasing, alkaline or electrolytic cleaning process before entering the hot rolling mill.

On the hot rolling mill, the steel strip is heated to the rolling temperature required for aluminium-zinc coating. The strip passes through the rolling mill for further refining and shaping. In order to make the surface of the steel strip highly hydrophilic and uniform coating, the steel strip is cooled to room temperature between the last two passes of the hot rolling mill.

In this cooling process, the steel strip must be treated with a chromium-containing pickling bath, which not only has the functions of cleaning, rust removal, and passivation but also has the effect of passivating the surface of the steel strip, forming a protective film on the steel surface, so as to make the AL-ZN coated steel strip possess good properties such as corrosion resistance, weatherability and strong adhesion between its coating and the substrate. The steel strip is then dried and rust-proofed with oil.

Through the above processes, the AL-ZN coated steel strip produced by Baosteel Hot Rolling Mill has superior corrosion resistance, weatherability and decorativeness, thus becoming the first choice of customers in many fields such as electrical appliances, automobiles and traffic signs.

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