Shandong Zhongqiang Metal: Diverse Color-Coated Coils Sold at Home and Abroad, Empowering the Construction and Building Materials Industry with Technology and Quality
Recently, the diverse color-coated coil products of Shandong Zhongqiang Metal Material Co., Ltd. (hereinafter referred to as "Shandong Zhongqiang Metal") — including galvanized color-coated coils, aluminum-zinc coated color-coated coils, and aluminum-magnesium-manganese color aluminum coils — have been selling well. These products not only cover multiple construction and building materials markets in North China, East China, South China and other domestic regions, but also are exported to overseas areas such as Southeast Asia, the Middle East and Africa. Relying on stable quality and customized services, the company has become a preferred partner for domestic and foreign customers in purchasing color-coated coil products.
As an enterprise focusing on the R&D and production of metal materials, Shandong Zhongqiang Metal has always taken technological innovation as the core and built a full-process refined production system. In the color-coated coil production process, the company adopts an advanced four-stage process of "pretreatment - coating - curing - post-treatment":
- In the pretreatment stage, three processes of degreasing, phosphating and passivation are used to completely remove oil stains and impurities on the surface of the base material, improving the coating adhesion;
- In the coating stage, high-purity environmentally friendly coatings such as PE, PVDF and HDPE are selected, combined with fully automatic roll coating equipment, to achieve uniform and controllable coating thickness (14-25 microns for the front coating and 5-20 microns for the back coating);
- In the curing stage, a hot air circulation oven is used to precisely control the temperature and time, ensuring full curing of the coating and significantly improving weather resistance and corrosion resistance;
- In the post-treatment stage, processes such as finishing, slitting and coiling are carried out to ensure that the specifications of the color-coated coils, such as coil inner diameter (508/610 mm) and width (600-1250 mm), accurately meet customer needs. At the same time, customized processing services such as welding, punching and cutting are provided to meet the secondary processing needs of different scenarios.
Relying on high-quality technology, the color-coated coil products of Shandong Zhongqiang Metal exhibit three core characteristics:
First, excellent corrosion resistance: The base material of galvanized color-coated coils has a high zinc content, while aluminum-zinc coated color-coated coils form double protection with the aluminum-zinc alloy layer. Their salt spray resistance can reach more than 1000 hours, making them suitable for corrosive environments such as coastal areas and chemical industries.
Second, long-lasting and stable color: High-weather-resistant coatings are used, with UV aging resistance of more than 15 years. Colors can be customized according to the RAL color card, covering various color systems such as crimson, ocean blue and metallic silver gray, to meet the personalized needs of architectural decoration.
Third, reliable structural strength: High-strength steel and aluminum-magnesium-manganese alloy are selected as the base materials. After cold rolling forming, the color-coated coils have outstanding impact resistance and bending resistance. The aluminum-magnesium-manganese color aluminum coils also have the advantage of light weight (only 8-12 kg per square meter), facilitating transportation and installation.
In terms of construction and application, the convenience of Shandong Zhongqiang Metal's color-coated coils has been widely recognized by customers. On the one hand, the products are supplied in coil form (coil weight: 3-6 metric tons), and can be directly cold-rolled into trapezoidal tiles, angle-lock tiles, tongue-and-groove tiles and other types on site using a dedicated roll-forming machine, without additional cutting. A construction team of 3-4 people can lay 300-500 square meters per day, and the construction efficiency is 3-4 times that of traditional tiles. On the other hand, the installation process only requires conventional tools such as electric drills and self-tapping screws. The tiles are fixed by overlapping, interlocking or mortise-tenon splicing, and the joints are sealed with butyl tape. Ordinary construction workers can operate after simple training, which greatly reduces labor and time costs. Post-maintenance is also simple: when local tiles are damaged, only a single tile needs to be replaced; when the surface is dirty, it can be cleaned by wiping with clean water or neutral detergent to restore its neatness.
With the advantages of diverse characteristics and convenient construction, the application scope of Shandong Zhongqiang Metal's color-coated coils has been continuously expanded, covering multiple fields such as construction, agriculture and industry:
- In the construction field, galvanized color-coated coils and aluminum-zinc coated color-coated coils are used for factory roofs, exterior walls of light steel villas and enclosures of commercial complexes; aluminum-magnesium-manganese color aluminum coils, due to their light weight and decorative properties, have become the preferred material for roofs of high-end venues and office buildings.
- In the agricultural field, heat-insulating color-coated coils are used in the construction of agricultural greenhouses to achieve the dual functions of heat preservation and light transmission.
- In the industrial field, anti-corrosion color-coated coils are suitable for special scenarios such as chemical workshops and sewage treatment plants, ensuring the long-term stable operation of facilities.
A relevant person in charge of Shandong Zhongqiang Metal said that in the future, the company will continue to optimize the production process, improve product performance, and at the same time improve the overseas service network to provide domestic and foreign customers with better color-coated coil products and solutions, and contribute to the green and efficient development of the global construction and building materials industry.
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