How to control the welding deformation made of H steel
Features are as follows: wide flange and large lateral rigidity. Good bending resistance. The two surfaces of the flange are parallel to each other, so that the connection, processing and installation are simple. Compared with the welding drawing I-beam, the utility model has the advantages of low cost, high precision, little residual stress, no expensive welding materials and welding seam detection, and the cost of steel structure production is saved by about 30%. Under the same section load, the H steel structure of hot rolled 15%-20% steel is less than that of traditional steel structure. Compared with the concrete structure, the hot rolled H steel structure can increase the use area of 6%, while the structural weight is reduced by 20% and 30%, and the internal force of the structural design is reduced. The H steel can be processed into T steel, and the castellated beams can form various section forms to meet the demands of engineering design and manufacture. H steel is mainly used in engineering, plant, equipment, machinery and equipment, bridges, highways, houses, etc., with good mechanical and physical properties, firm and energy-saving and environmental protection. H steel is a kind of economical type section steel, widely used in industry, buildings, bridges, oil drilling platforms, according to the forecast in 2005 China's H steel demand of about 2 million 500 thousand tons, 5 million tons of demand in 2010, but the H steel of China's annual production capacity of 1 million 200 thousand tons, the market demand is very great.
H- steel is a kind of economical section steel with better mechanical performance, especially the cross section, which is named after the English letter "H".
H steel is a new type of economical construction steel. H type steel cross section shape is reasonable in economy, good mechanical properties, rolling each point on the extended section is uniform, small internal stress, compared with the ordinary beam, a section modulus, light weight, saving advantages of metal, can make the building structure to reduce 30-40%; and because of its inner and outer legs parallel leg end is right, assembled into components, welding, riveting work can save up to 25%. Often used in large capacity requirements, large cross section stability, such as buildings, high-rise buildings, as well as bridges, ships, lifting transport machinery, equipment foundation, support, foundation piles.
