Application of weather-resistant cold-formed steel in curtain wall engineering

Application of weather-resistant cold-formed steel in curtain wall project Weather-resistant cold-formed steel is an economic section profile with a wide range of uses. It has high dimensional accuracy, high product surface finish, good corrosion resistance after tube closure, and can produce a variety of complex special-shaped section steel. It has important economic value for improving work efficiency, improving product quality, saving energy, reducing product weight and reducing cost.

Weathering steel screen

Screen panels

As an important method to evaluate the corrosion resistance of materials, accelerated corrosion test can greatly shorten the test period of the corrosion resistance of materials. The innovation point of the invention lies in the composition of steel and the production method of steel. In the composition design, the invention adopts the addition of extremely low magnetism, Cu-Cr-Ni-Mo-Nb and two or more compound additions in Ti-Al-Zr. The carbon content is controlled near or less than 0.0218% of the large solubility of carbon in α-Fe at room temperature to reduce or inhibit the precipitation of cementite and ensure that the main control structure is a uniform bainite structure to obtain excellent weather resistance.

corten steel Screen panels

The steel of the invention is produced by quenching + tempering process and has excellent weather resistance, excellent low temperature toughness and weldability. The microstructure and mechanical properties of the steel plate along the thickness direction of the plate are uniform. When the steel plate with a thickness of less than or equal to 50mm is welded at normal temperature, there is no need to preheat before welding and no need to heat treatment after welding, thus improving the welding efficiency. It can be widely used in bridge, construction, traffic, offshore platform and other engineering structures. The steel has the characteristics of rust resistance, corrosion resistance and prolonging life of the component, thinning and reducing consumption, saving labor and energy, benefiting the component manufacturers and users.