1. In order to prevent the corrosion between the eyes due to the heating of the flange cover, the welding current should not be too large, the arc should not be too long, the interlayer cooling is fast, and the narrow weld bead is suitable.
2. The electrode should be kept dry when used to prevent the electrode from sticking to oil and other dirt, so as not to cause the weld to increase the carbon content and affect the quality of the weldment.
3. When welding stainless steel flanges, the carbide is precipitated by repeated heating, which reduces the corrosion resistance and mechanical properties.
4. If the weldment cannot be heat-treated after welding, stainless steel flange pipe electrode should be used.
5. In order to improve the corrosion resistance and weld-ability, an appropriate amount of stability elements is added appropriately, and the weld-ability is better than that of chrome stainless steel flanges.
The above is a brief introduction to the use of stainless steel flanges, but the specific use process may be more complicated, depending on the situation.