钢结构加工过程中常会遇到由于焊接产生变形问题，造成钢构件变形的原因有热变形、冷变形或者由于相互的构件无法组装在一体，变形问题是钢结构加工过程中很难解决的问题，如钢结构件组装过程中无法顺利进行组装，钢结构焊接过程中会出现焊接变形，技术要求公差太大。

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.

钢构有着近二十年的钢结构制作经验，对于纠正钢结构变形有着丰富的经验，钢结构加工过程中常遇到变形，是由焊接热变形引起的，那么如何纠正钢结构加工变形问题呢。

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.

一、钢结构加工夹具固定法，通常使用刚性很大的夹具夹紧组合焊件，用强制力控制变形问题，然后再进行焊接，钢结构件遇到热变形时，需要使用夹具作用力进行纠正，达到控制钢结构加工变形问题。

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.

二、钢结构加工过程中反变形法，构件在焊接前，根据被焊金属构件情况判断，如焊后冷却(cooling)时，会发生方向变形和收缩量减小。可以预先向相反方向弯曲（Bend)或斜置，焊接遇热后会产生变形，能恢复到预定的位置。

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.

三、钢结构加工定位控制法，钢结构件在焊接前，用许多焊点将焊接部位或四周定位，还可在焊接缝两侧压以重物，这种方法称为定位控制法。

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.

四、钢结构加工焊接顺序法，正确安排钢结构加工的焊接顺序，能有效的防止钢结构焊接变形，通常道焊接缝引起的变形很大，每道焊缝引起的变形量无法相互抵消，很后的变形方向，总和很先焊的焊缝引起的变形方向一致。

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.