Question --- Why can’t iron bars or carbon rods be inserted into the weld bead?
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As is well known, in welding, it is not allowed to insert iron bars or carbon rods into the weld bead. 1. What is the reason? How significant is the impact? Is it also not allowed to insert debris in ordinary structural components? 2. This situation occurs when the gap is large; however, when the gap is large, it is difficult to weld without filling something in the gap. How should this be handled? Thank you for asking
I don’t understand; why put miscellaneous items there? Whether intentionally or not, if there’s a large gap, thin shims or gaskets can be used
I’m not sure about structural welding, but it is absolutely forbidden to use iron bars or carbon rods in container welds, as this will cause the weld defects to exceed acceptable levels. If the gap is large, shims can be added and removed after welding. Furthermore, a large gap indicates significant alignment errors and poor manufacturing quality; the key is to find ways to improve the precision of the manufacturing process.
It can easily lead to unfused and underpenetrated welds
If the excessive gap is caused by poor quality, making welding difficult, the groove can be repaired before assembly. To add further, to be precise, in such a case the groove assembly should be deemed Unqualified.
During welding, inserting iron bars or carbon rods into the weld bead affects the mechanical properties of the weld metal.....
1. It is prone to defects such as lack of fusion and incomplete welding. 2. Differences in material composition affect the mechanical properties of the welded joint.
Article 1 is not discussed; this approach is extremely unethical and a serious violation of regulations. Article 2: If the gap is too large, it is possible to consider first allowing growth on the base material, that is, through surfacing welding, and then proceeding with welding.
What you’re saying is probably meant to deceive people; how can something else be put into a weld? The gap is too large; the person upstairs is right – we should first perform surfacing welding to add material.
The poster is a newcomer and needs to learn more*. Putting things in randomly severely affects the mechanical properties of the welds and increases the likelihood of significant defects, which can lead to accidents in the entire equipment; many explosions and other incidents are caused by welds that do not meet quality standards.