1. Consider the performance of welding joints
The performance of welding joints includes many aspects, the most important of which is the strength principle of welding materials. For example, the strength at high temperature and the strength at room temperature need to be considered. In addition, the performance of impact toughness, hardness, high temperature oxidation resistance, corrosion resistance and chemical composition also need to be considered.
2. Consider welding process performance
In the welding process, it is necessary to understand the performance and structure of different materials before certain cutting and forming work can be carried out. This requires that welding materials should have certain welding process performance while maintaining the relevant performance of welding, such as cutting performance, high temperature comprehensiveness, etc. These performances can directly affect the quality of welding, so some requirements for welding process performance and manufacturing process performance cannot be ignored
3. Economic and reasonable
When selecting welding materials, we must not only meet the requirements of production process and other aspects, but also have a certain understanding of information such as the price of welding materials. While meeting the relevant process performance, we can choose relatively cheap materials to reduce production costs and increase profits. Therefore, when purchasing, the purchasing staff can make comparisons and references in many aspects, and try to choose welding materials with good performance and low price, which can effectively reduce the manufacturing cost.
