During the processing of steel structure, there are often deformation problems due to welding. The causes of deformation of steel members are hot deformation, cold deformation, or mutual components can not be assembled in one. Deformation is a difficult problem to solve in the processing of steel structure. For example, the assembly of steel structure parts can not be smoothly carried out, the welding deformation will occur in the welding process of steel structure, and the technology is difficult to solve The required tolerance is too large.
Steel structure has nearly 20 years of steel structure manufacturing experience, and has rich experience in correcting the deformation of steel structure. Deformation often occurs in the process of steel structure processing, which is caused by welding hot deformation. So how to correct the deformation of steel structure processing.
1、 Steel structure processing fixture fixation method, usually uses a very rigid fixture to clamp the combined weldment, uses the force to control the deformation problem, and then carries on the welding, when the steel structure meets the hot deformation, it needs to use the fixture force to correct, so as to control the steel structure processing deformation problem.
2、 In the process of steel structure processing, the reverse deformation method, according to the condition of the welded metal component before welding, such as cooling after welding, will occur directional deformation and shrinkage reduction. It can be bent or inclined in the opposite direction in advance. The welding will deform when it is heated, and it can return to the predetermined position.
3、 Steel structure processing positioning control method, steel structure before welding, with many welding spots will be welded or around positioning, but also in the welding seam on both sides of the pressure with heavy, this method is called positioning control method.
4、 The welding sequence method of steel structure processing, correctly arranging the welding sequence of steel structure processing, can effectively prevent the welding deformation of steel structure. Generally, the deformation caused by each welding seam is very large, and the deformation caused by each welding seam cannot offset each other. The deformation direction of the last welding seam is the same as that caused by the first welding seam.