Regarding the reinforcement ring

Thread Content

1. Why cannot reinforcing rings be used with high-strength steel? When the reinforcement ring is welded to the housing, it increases the stiffness in this area, exerting a strong constraint on the cooling contraction of the fillet welds, which can easily lead to cracks at the weld sites. In particular, high-strength steel has high hardenability, is sensitive to welding cracks, and is more prone to cracking. 2. Why are reinforcement rings not recommended for use under high-temperature conditions? Due to the gap that always exists between the reinforcement plate and the housing, a thin layer of still air is formed, which hinders heat transfer and can thus lead to additional temperature difference stresses. 3. Why cannot reinforcing rings be used in fatigue-resistant containers? The rigidity at the joint, reinforcement ring, and shell welds is high, which makes cracks prone to occur in the fillet welds at the joint after welding. Since the reinforcement ring and the housing are joined by lap welding, they do not form a single unit, resulting in poor fatigue resistance. 4. Why are reinforcement rings not recommended for extremely hazardous and highly dangerous media? The fillet welds in the reinforcement ring structure are generally difficult to inspect; only magnetic particle or penetrant testing can be used to assess the quality of these welds. Moreover, leaks in the reinforcement ring structure are not easy to detect. Therefore, the use of reinforcement rings is not recommended for containers containing extremely toxic or highly hazardous substances