熱門關鍵詞：濟南彩鋼板 | 濟南復合板 | 濟南彩鋼瓦 | 濟南c型鋼 | 濟南鋼結構 |
Jinan C-beam is widely used, not only as purlin and wall beam in steel structure building, but also as lightweight roof truss, bracket and other building components. No matter what kind of use, it will involve the cutting of C-beam. As different cutting methods have different cutting effects, it is necessary to make appropriate selection according to the requirements of customers.
In general, if Jinan C-beam is used in steel structure, its cutting should be carried out on shearing machine or sawing machine as far as possible, especially for thin-walled steel roof truss.
The reason for this suggestion is that the blanking should be accurate, and the easy electric sawing method is suitable. It not only has high work efficiency, but also has smooth section, good quality, and very small cutting error.
Gas cutting can also be used for C-section steel, but in order to improve the quality of gas cutting, small diameter nozzle should be used as far as possible, and after cutting, hammer should be used to gently tap to make the incision smooth, so as to meet the requirements of various uses. Like other cold-formed steel, the problem in the production process of C-beam is the problem of internal stress. Due to the large internal stress of the material, once it is put into use, deformation may occur, which affects its use effect.
There is no way to avoid the stress of C-beam. In the process of uncoiling, rolling shear and closing of cold-formed C-beam, certain internal stress will be increased. The main reason is that the cold-formed C-beam has certain stress through mechanical forced deformation. In addition, if the cold-formed C-beam is not sprayed with primer, the rust removal and passivation process will release its internal stress, resulting in bending and torsion.
In the case of no way to avoid, we can only reduce the stress through reasonable operation. As manufacturers and users, we should also pay attention to this problem to ensure that the cold-formed C-beam can be widely used.
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