What should you pay attention to when using H-shaped steel?

Section steel hot-rolled section steel processing section steel wholesale galvanized section steel factory_Find Shanghai Ruiling. It knows that the section of hot-rolled section steel is the same as the English letter. It is an economical section with more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. Highly efficient Profiles are used in industrial plants, civil buildings, municipal projects, oil platforms, bridges, flatbed truck girders, power supports for electrified railways, steel structure bridges along railways, etc.
In addition, during the production or use of section steel manufacturers, attention should be paid to the malfunctions that occur during use. The precautions for determining the start of use are as follows:
When cutting and welding section steel and similar products, Personnel holding construction steel structure welding qualification certificates must be assigned to operate in accordance with the corresponding national specifications and standards for construction steel structures.
When using flame cutting for section steel, the web should be cut first and then the flange part (the principle of thinning first and then thickening) to prevent cracking caused by stress. If necessary, use a cutting flame to preheat the cutting part before cutting (preheating temperature ℃).
. Arc transition treatment should be carried out on the cutting edges and corners, and the radius of the arc should not be less than 1. After cutting, the cutting part should be lightly struck with a welding planer hammer to eliminate stress.
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