C-shaped steel can not only be used as purlins and wall beams in steel structure buildings; It can also be combined into lightweight roof truss, bracket and other building components. This is bound to involve the cutting of C-shaped steel. Now let's talk about the cutting process and stress control of Jinan C beam.
Because different cutting methods have different cutting effects, the cutting of C-shaped steel should be adopted according to the requirements of customers. If C-section steel is used for steel structure, it shall be cut on cutting machine or sawing machine as far as possible, especially for thin-walled steel roof truss. Due to the requirement of accurate cutting, the electric saw cutting method is more appropriate, which not only has high efficiency, but also has smooth and flat section, good quality and small cutting deviation. Gas cutting can also be used, but in order to ensure the quality of gas cutting, small caliber nozzles should be selected as far as possible. After cutting, gently tap with a hammer to make the cut smooth and meet the requirements of other cold bending steel. The problem faced by C-shaped steel in the production process is internal stress, because the internal stress of the material is large, once put into use, it may be deformed, affecting its use effect.
There is no way to prevent the stress of the C section steel, mainly because the processing of the C section steel caused by mechanical forced deformation has a certain stress. If C-shaped steel is not sprayed with primer, the rust removal and pavement process will also release its internal stress, resulting in bending and torsion. In case of no prevention, we can only rely on reasonable operation to reduce the stress. As manufacturers and users, we should also pay attention to this problem to ensure the application of C-beam.
In addition, the thickness requirements for C-shaped steel wall are different in practical application. If these requirements are to be met at the same time, the selected C-shaped steel production process and equipment are very critical. Generally, the cold rolling method is difficult to produce the C-beam, so the C-beam mill must be used to complete it.
In order to achieve accurate wall thickness, when pressing C-shaped steel, the mold used is composed of an upper mold and some lower molds with the same size and specification. Before processing, if they are installed in place, not only the upper mold and lower mold can be smooth, but also the four peripheral clearance is uniform, so that the pressed C-shaped steel can have uniform wall thickness.
In a word, because different cutting methods have different cutting effects, it is necessary to make appropriate selection according to customer requirements. If you have any questions or needs about this material, you can come to our website at any time http://www.jnhscg.com Ask about it!