Steel structure is a structure composed of steel materials and is one of the main types of building structure. The structure is mainly composed of steel beams, steel columns, steel truss and other components made of steel and steel plates, and uses rust -proof processes such as silicane, phosphorusization of pure manganese, water washing and drying, and galvanizing.
The manufacturing process of
steel structure components is complicated, and the main processes are: samples, feeding, computer programming, stitching, CNC cutting, assembly, buried arc welding, drilling, assembly, correction molding, riveting parts, manufacturing assembly, welding inspection , Rust -proof treatment, coating, number, acceptance delivery, etc. Each link is important.
1. Putting the line is a process in the manufacturing process of the steel structure plant. The size and accuracy are guaranteed by the successful work of the subsequent work. Therefore, you should be familiar with the drawings and carefully check whether the size of each part of the drawing is different. After the sample manufacturing is completed, the graphic number, part name, part number, location, material brand, specifications and processing symbols should be marked, To avoid chaos.
2. When assembling panels, consider the shrinkage of the weld, and release the balance of 2 ~ 3 mm according to the requirements of automatic cutting or manual cutting. Before welding, pay attention to cleaning rust, oil stains, burrs, etc. At the weld, the slopes should be performed as required. The general single groove is 55 ± 5. Only clean welding wires can ensure welding quality.
3. When assembly, you should pay attention to the welding of the wingshin plate of more than 200 mm. The spacing of point welding is generally 300mm ~ 400mm. The model of the stripe should be matched with the material of the part.
4. Use steel mold drilling and drilling bed drilling can improve work efficiency and ensure the quality of the parts. Because the holes that are reserved for A and B bolts when the steel structure is installed, the H12 accuracy is required, so the accuracy of the holes is high.
5. Correct. After the steel is cut or welded, the flatness should be linked according to the actual situation, and the flatness shall not exceed 900 ° C.
