S355 steel plate is a common structural steel used in various engineering applications. When processing and welding, you need to pay attention to the following matters:
S355 steel plate processing precautions:
1. Cutting: Use appropriate cutting tools and techniques such as flame cutting, plasma cutting or mechanical cutting.
2. Cold bending: Use appropriate bending equipment to avoid excessive hardening or breakage of the material.
3. Drilling: Choose the appropriate drill bit and coolant, and control the feed speed to avoid overheating.
4. Surface treatment: Clean the surface and remove oxides to improve welding quality.
S355 steel plate welding precautions:
1. Preheating: For thicker steel plates, preheating can help reduce welding residual stress and improve welding quality.
2. Material selection: Select appropriate electrodes and filling materials that are compatible with the S355 steel plate.
3. Welding parameters: Strictly control the welding current, voltage and welding speed to ensure good weld quality.
4. Follow-up treatment: Eliminate welding residual stress in a timely manner and perform necessary follow-up heat treatment or annealing treatment.
5. Quality inspection: Carry out quality inspection of welds, such as ultrasonic inspection or X-ray inspection, to ensure that the welding quality meets standard requirements.
Please note that before performing S355 steel plate processing or welding operations, always refer to relevant manufacturer guidelines, safety specifications and local regulations to ensure the safety and quality of the operation.
