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Stainless steel annealing and pickling unit (CAPL)

Stainless steel annealing and pickling unit (CAPL)

The stainless steel cold-rolled pickling and annealing process can be divided into intermediate annealing pickling and final annealing pickling. The main purpose is to recrystallize the cold-rolled stainless steel after annealing to eliminate work hardening, thereby softening and improving mechanical properties, and to remove impurities such as iron oxide scale generated during annealing through pickling, further improving the surface quality of the strip.

Keywords: Solution

Continuous Galvanized Steel Sheet Production Line (GL)

Continuous Galvanized Steel Sheet Production Line (GL)

Galvanized aluminum zinc silicon (GL) products are produced by hot-dipping steel strip in an aluminum (Al 55%), zinc (Zn 43.5%), and silicon (Si 1.5%) alloy. They exhibit excellent corrosion resistance. Hot-dip aluminum zinc alloy is developed based on hot-dip aluminum and hot-dip galvanizing technologies. It combines the excellent atmospheric corrosion resistance and heat/oxidation resistance of aluminum-coated products with the excellent electrochemical protection of galvanized steel products, making cut and scratched areas less susceptible to corrosion and rust.

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Continuous Annealing Line (CAL)

Continuous Annealing Line (CAL)

Annealing steel strip is to homogenize the chemical composition and structure of the steel, refine the grain size, adjust the hardness, eliminate internal stress and work hardening, and improve the forming processability of the steel. Continuous annealing is a process in which the steel strip is heated to an appropriate temperature under a protective atmosphere and held for a certain period of time, followed by cooling and overaging treatment. In order to improve the surface quality of the strip, an online leveling machine is generally designed.

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Continuous decarburization and annealing unit for cold-rolled silicon steel (CNGO)

Continuous decarburization and annealing unit for cold-rolled silicon steel (CNGO)

The cold-rolled non-oriented silicon steel (CNGO) is degreased, decarburized and annealed, and recrystallized annealed under a protective atmosphere to reduce the carbon content of the strip to the specified range, to grow the grains, improve the magnetic properties, eliminate stress, and apply an insulating layer.

Keywords: Solution

Continuous color-coated steel production line (PPGI, PPGL)

Continuous color-coated steel production line (PPGI, PPGL)

A continuous roll coating line for steel strip applies a paint film coating to galvanized (aluminum) or aluminum substrates to further improve corrosion resistance and aesthetics, expanding the range of product applications.

Keywords: Solution

Continuous cold-rolled galvanized steel production line (GI)

Continuous cold-rolled galvanized steel production line (GI)

Using cold-rolled steel as a raw material, a layer of zinc or zinc-aluminum alloy is applied to the surface of the strip steel through hot-dip galvanizing, which has strong cathodic protection performance, making it widely used in various fields such as industry, agriculture and construction, and becoming a widely used coated product today.

Keywords: Solution

Continuous hot-dip galvanized steel sheet production line (HGI)

Continuous hot-dip galvanized steel sheet production line (HGI)

Using hot-rolled steel as a raw material, a layer of zinc or zinc-aluminum alloy is applied to the surface of the strip steel through hot-dip galvanizing, which has strong cathodic protection performance, making it widely used in various fields such as industry, agriculture and construction, and becoming a widely used coated product today.

Keywords: Solution

Continuous Pickling Line (CPL) for Carbon Steel

Continuous Pickling Line (CPL) for Carbon Steel

Using a continuous hydrochloric acid pickling process, the iron oxide layer on the surface of the hot-rolled strip is removed, and the irregular edges of the strip are cut off, providing qualified hot-rolled strip raw materials for the next process. The pickled strip has a pure iron surface and can be cold-rolled or hot-dip galvanized.

Keywords: Solution

Carbon steel push-pull pickling unit (PPPL)

Carbon steel push-pull pickling unit (PPPL)

Using a push-pull type shallow tank turbulent pickling process, the iron oxide layer on the surface of hot-rolled strip is removed, and the irregular edges of the strip are cut off, providing qualified hot-rolled plate raw materials for the next process. The pickled strip has a pure iron surface and can be cold-rolled or hot-dip galvanized.

Keywords: Solution

Miniature cold rolling system solution SMICS

Miniature cold rolling system solution SMICS

Integrates miniaturized pickling, cold rolling, galvanizing, color coating, degreasing, annealing, and finishing units to complete the production process from hot-rolled to cold-rolled finished products.

Keywords: Solution

SUNNY Technology's construction of the 300,000-ton/year continuous hot-dip galvanizing production line for the Uzbekistan SMZ Phase II project has been successfully put into operation!

SUNNY Technology's construction of the 300,000-ton/year continuous hot-dip galvanizing production line for the Uzbekistan SMZ Phase II project has been successfully put into operation!

On March 29, 2025, the 300,000-ton/year continuous hot-dip galvanizing production line of the Phase II project of Samarqand Metallurgiya Zavodi (SMZ, Samarqand Iron and Steel Plant), Uzbekistan, general contracted by Huangshi Shanli Technology Co., Ltd. (referred to as "Shanli Technology"), was officially put into operation.

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Hebei Haihong New Materials Co., Ltd.'s 400,000-ton/year continuous hot-dip galvanizing aluminum-magnesium unit for strip steel has been successfully put into production!

Hebei Haihong New Materials Co., Ltd.'s 400,000-ton/year continuous hot-dip galvanizing aluminum-magnesium unit for strip steel has been successfully put into production!

On February 23, 2025, the "400,000-ton/year continuous hot-dip galvanizing aluminum magnesium unit" of Hebei Haihong New Materials Co., Ltd., general contracted by Huangshi Shanli Science and Technology Co., Ltd., was successfully put into production!

Keywords:Solution

Hunan Jinci's "medium and high grade non-oriented silicon steel annealing and coating production line" has been successfully put into production!

Hunan Jinci's "medium and high grade non-oriented silicon steel annealing and coating production line" has been successfully put into production!

On October 11, 2024, the annealing and coating production line for high and medium grade non-oriented silicon steel of Hunan Jinci New Materials Technology Co., Ltd. (“Hunan Jinci”), undertaken by Huangshi Shanli Science and Technology Co., Ltd. (“Huangshi Shanli”), was successfully put into operation for the first time!

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Auspicious Mid-Autumn Festival: Jiangsu Zhongsheng's third continuous decarbonization and annealing unit for non-oriented electrical steel is put into production

Auspicious Mid-Autumn Festival: Jiangsu Zhongsheng's third continuous decarbonization and annealing unit for non-oriented electrical steel is put into production

On September 14, 2024, Huangshi Shanli Technology Co., Ltd. (hereinafter referred to as "Shanli Technology") once again demonstrated its outstanding strength, successfully assisting Jiangsu Zhongsheng Electromagnetic Technology Co., Ltd. (hereinafter referred to as "Jiangsu Zhongsheng") in the one-time successful commissioning of its third non-oriented electrical steel continuous decarburization and annealing unit. This milestone achievement, following the successful commissioning of Guangdong Zhongsheng's No. 4 non-oriented electrical steel continuous decarburization and annealing coating unit in May 2024, marks another deepening and sublimation of the cooperation between the two parties.

Keywords:Solution

SUNNY Technology selected as a 'specialized, refined, and new' key small giant enterprise in the latest round of national selections

SUNNY Technology selected as a 'specialized, refined, and new' key small giant enterprise in the latest round of national selections

Recently, the Hubei Provincial Department of Economy and Information Technology announced the list of the first batch of national specialized and new 'key small giant' enterprises to be supported in 2024. Huangshi Shanli Technology Co., Ltd. is one of the 58 enterprises selected in Hubei Province!

Keywords:Solution

Shandong Ruifeng Composite Materials Co., Ltd.'s 100,000-ton/year continuous color-coated steel coil production line "product upgrade and transformation project" has been successfully put into operation!

Shandong Ruifeng Composite Materials Co., Ltd.'s 100,000-ton/year continuous color-coated steel coil production line "product upgrade and transformation project" has been successfully put into operation!

On July 2, 2024, the 100,000-ton/year continuous coil coating production line "product upgrade and transformation project" of Shandong Ruifeng Composite Materials Co., Ltd. (hereinafter referred to as "Shandong Ruifeng"), undertaken by Huangshi Shanli Technology Co., Ltd. (hereinafter referred to as "Shanli Technology"), was successfully put into operation. The coil coating production line was originally designed and constructed by Shanli Technology and officially put into operation in 2010. The production line has a design production capacity of 100,000 tons/year, with raw materials including hot-dip galvanized steel coils, electro-galvanized steel coils, and alloyed steel coils, with specifications of 0.11-0.8mm (thickness) x 700-1250mm (width), and a maximum operating speed of 100 mpm. For 15 years, the production line has been operating normally, and the high-end coated products produced have been exported to Southeast Asian countries along the "Belt and Road". In order to further improve the stability of the production line and increase the variety of products, Shandong Ruifeng once again joined hands with Shanli Technology to carry out the transformation of the production line. The maximum coil diameter that can be processed in the inlet section has been increased from 1450mm to 1800mm; multiple sets of tension rollers have been added to improve the stability of the production line; and a cold lamination function has been added to produce new products. Since the design and construction of the No. 1 continuous hot-dip galvanizing production line in 2007, Shanli Technology has successively built 3 continuous hot-dip galvanizing/aluminum-zinc production lines and 1 continuous coil coating production line for Shandong Ruifeng, and has undertaken several upgrades and transformations of the production lines. The successful commissioning of this coil coating production line transformation project is another fruitful result of the 18 years of sincere cooperation between the two companies. Adhering to the corporate vision of "being a globally renowned equipment supplier with advanced sheet metal processing technology and high-quality services", Shanli Technology will continue to ensure industry-leading technology and provide customers with better services.

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