Cold-formed steel products can be achieved. It is difficult to produce profiles with thin thickness and complex cross-sections by general hot-rolling methods. Due to the use of hot-rolled or cold-rolled strip steel as raw materials, the surface of cold-formed steel products is smooth and high-dimensional And the length of the product can be flexibly adjusted according to user needs; the product section can be designed according to the use requirements and the structure is reasonable. The section performance (section coefficient) per unit weight of cold-formed steel products is superior to that of hot-rolled sections, and it can generally save 10 to 40% of the steel used in the structure. The building structure using cold-formed steel can effectively reduce the structural weight of the building, Reduce the foundation, facilitate construction, shorten the construction cycle, thereby reducing the overall construction cost; suitable for earthquake-resistant and general fire-resistant structures; used to manufacture mechanical components such as automobiles, tractors, trailers, rolling stock, and agricultural machinery, which can significantly reduce equipment Self-weight, which saves power consumption and improves the efficiency of transportation and machinery;
The blank material used for cold-formed steel products can be various. Not only can it produce general carbon structural steel, alloy structural steel, stainless steel, but also various composite metal materials, plated plates (zinc-plated aluminum, etc.) ), Coated sheet (all kinds of organic plastic coatings) and other cold-formed steel, to meet the needs of all aspects.
It can be combined with other processing methods, such as: in combination with cutting, punching, indentation, welding and other processes, it can produce a variety of profiles, even parts products that can be used directly, and further Increased added value of deep processed products;
The working line of the roll cold roll forming unit is simpler than the rolling mills that produce similar products, lighter in weight, smaller in area of production equipment, easier to master production operations, fewer operators, lower product costs and higher production efficiency.
Classification method of cold-formed steel products
There is no unified regulation or approval for the classification of cold-formed steel products. Different countries have their own customary classification methods, and we do not have uniform regulations.
Generally speaking, the classification of cold-formed steel products can be classified according to the sectional shape characteristics of the products.
According to the cross-sectional shape of cold-formed steel products, they can be roughly divided into the following three categories: open section steel, closed section steel and wide section steel.
If divided according to the specifications and dimensions of cold-formed steel products, it can be divided into the following four categories: large-sized steel, medium-sized steel, small-sized steel, and wide-shaped steel.