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Full-Process Ingenious Manufacturing

Release time:

2026-01-16

Galvanized steel coils, as core products in steel products, are widely used in automotive manufacturing, home appliances, construction, new energy and other key fields. The refinement of their production process directly determines product quality. With the large-scale layout of three production bases, internationally advanced equipment configuration and full-process production capacity, Guangda Company has built a high-standard galvanized steel coil product line, demonstrating the strong strength of a comprehensive iron and steel enterprise. The following will take you into the galvanized steel coil production workshop to explain the four core links from raw materials to finished products.

As an important comprehensive production base for iron and steel raw materials and products, Guangda Company has established a benchmark in the industry with its strong comprehensive strength. The company has formed three production bases: Inland Port Plant, New Energy Plant and South Plant, covering a total area of 980 mu, equipped with 468,000 square meters of high-standard production workshops and professional R&D office buildings. A multi-level talent team of more than 1,000 people provides solid support for production and operation. Relying on internationally advanced equipment configuration and full-process production capacity, the company has built a diversified product line with annual sales exceeding 9 billion yuan. Its products cover domestic and foreign markets, widely used in automotive manufacturing, home appliances, construction, new energy and other fields, winning market recognition with excellent quality and strong production capacity. The following will focus on the core product - galvanized steel coils, taking you through the entire production process to experience the strong strength of Guangda's intelligent manufacturing.

1. Uncoiling: Precise Start to Lay a Solid Production Foundation

The first step of production starts with the uncoiling process, whose stability directly affects the smooth progress of subsequent processes. The professional uncoiling equipment equipped in Guangda's Inland Port Plant can accurately connect with steel coil raw materials of different specifications, realizing the stable uncoiling, positioning and conveying of steel coils through an automatic control system. Relying on the company's perfect raw material control system, the specifications, material and surface condition of steel coils are strictly inspected before uncoiling to ensure that the raw materials meet production standards.

As the starting point of large-scale production, the efficient operation of the uncoiling process benefits from the coordinated layout of the company's three production bases covering 980 mu and the reasonable planning of 468,000 square meters of high-standard production workshops. The investment in automatic uncoiling equipment not only improves production efficiency, but also avoids errors caused by manual operation, providing a flat and uniform raw material base for subsequent processes, demonstrating the company's refined level in production process control.

2.Pickling: In-depth Purification to Ensure Surface Quality

Pickling is a key process to remove oxide scale, rust and impurities from the surface of steel coils in galvanized steel coil production, which is directly related to the adhesion of the galvanized layer and the corrosion resistance of products. Guangda's Inland Port Plant is equipped with a 1450 push-pull pickling line with an annual output capacity of 800,000 tons. This line adopts internationally advanced pickling technology and environmental protection treatment technology, which can accurately adjust pickling time, temperature and acid concentration according to the characteristics of different steel grades.

During the pickling process, the unit realizes acid liquid recycling and waste liquid discharge up to standard through an automatic control system, which not only ensures the cleanliness and uniformity of the steel coil surface, but also complies with the requirements of the ISO14001 environmental management system, practicing the concept of green production. The company's multi-level technical talent team monitors the pickling effect throughout the process. Through precise detection and adjustment, each batch of steel coils can meet the strict standards of subsequent rolling and galvanizing processes after pickling, laying a solid foundation for high-quality products.

3.Rolling Mill: Precision Rolling to Shape Core Specifications

After pickling, the steel coils enter the rolling mill process. The thickness, flatness and mechanical properties of the steel coils are adjusted through rolling technology to meet the specification requirements of galvanized steel coils in different industries. Guangda's Inland Port Plant is equipped with two single-stand reversing six-high cold rolling mills with an annual output of 600,000 tons of cold-rolled hard coils. This mill has high-precision rolling capacity, which can accurately control the thickness of steel coils with an error controlled at the micron level.

The six-high cold rolling mill adopts an advanced hydraulic screw-down system and automatic tension control system, combined with the rolling process independently optimized by the engineer team. It can not only meet the rolling needs of steel coils of different materials, but also effectively improve the surface finish and dimensional accuracy of steel coils. Relying on the company's perfect scientific research system and a professional talent team of more than 1,000 people, the mill can flexibly adjust production parameters according to customer customized needs, realizing batch production of multi-specification and high-quality steel coils, demonstrating the company's technical strength in the field of steel processing.

4.Galvanizing: Fine Coating to Create Corrosion-Resistant Quality

Galvanizing is the core process of galvanized steel coil production. By forming a uniform and dense galvanized layer on the surface of the steel coil, it significantly improves the corrosion resistance and service life of the product. Guangda's Inland Port Plant has a non-spangle galvanizing production line with an annual output capacity of 800,000 tons. The production line adopts internationally advanced hot-dip galvanizing technology and fully automatic control equipment to realize precise control of galvanizing temperature, galvanizing time and zinc layer thickness.

During production, the rolled steel coils enter the galvanizing bath after cleaning and annealing, and form a firm galvanized layer through zinc liquid immersion and subsequent cooling and passivation treatment. The company implements full-process control through the ISO9001 quality management system. Technical personnel conduct strict inspections on zinc layer thickness, adhesion and corrosion resistance with professional testing equipment to ensure that products meet domestic and foreign industry standards. In addition, the South Plant is also equipped with 7 hot-dip galvanizing production lines and 1 fully automatic thick-plate galvanizing production line, further improving the galvanized product matrix to meet the application needs of different thicknesses and scenarios.

Strong Strength Support to Become an Industry Benchmark

From uncoiling, pickling, rolling mill to galvanizing, Guangda Company has realized the full-process independent production of galvanized steel coils. Each link relies on strong hardware configuration and software support, demonstrating the core competitiveness of a comprehensive iron and steel enterprise. The company has three production bases: Guangda Inland Port Plant, New Energy Plant and South Plant, covering a total area of 980 mu. It is equipped with internationally advanced equipment such as German Messer flame cutting machines and Swiss Haussler plate bending machines, forming a large-scale production capacity of 800,000 tons of galvanized coils, 600,000 tons of cold-rolled hard coils and various steel products annually.

With a multi-level talent team of more than 1,000 people, three management system certifications and a number of invention patents, Guangda Company's annual sales volume has exceeded 9 billion yuan, and its products cover domestic and foreign markets, widely used in automotive, home appliances, construction, new energy and other fields. In the future, Guangda Company will continue to be driven by technological innovation, focus on quality control, and rely on full-process production advantages and international equipment configuration to provide higher-quality steel products for global customers and consolidate its position as an important industrial zone in the industry.

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