1. Choose the right welding method: Common methods for stainless steel welding include manual arc welding, arc welding, TIG welding, MIG/MAG welding, etc. The selection of the right welding method can be determined according to specific needs.
2. Choose the right welding material: The welding material of stainless steel should have the same chemical composition, metallurgical properties, and corrosion resistance as the parent material to ensure the quality of the welded joint.
3. Ensure the cleanliness of the welding surface: Before welding, the cleanliness of the welding surface should be ensured. By scraping off the oxide layer, grease and other impurities, acidic or alkaline cleaning agents can be used for cleaning.
4. Control welding parameters: Control welding current, voltage, welding speed, and other parameters to ensure the melting state and heat input during welding to avoid excessive thermal stress.
5. Reasonably choose the welding sequence: The welding sequence of large stainless steel components should be gradual to avoid the concentration of thermal stress and deformation.
6. Control welding heat input: To avoid excessive thermal stress, preheating, welding interlayer temperature control, and cooling rate control can be adopted.
7. Reasonable selection of filling materials: For some stainless steel materials, it is necessary to select filling materials with added elements to improve the strength and corrosion resistance of the welded joint.
8. Maintain sealing: Maintain sealing during welding to prevent air from entering the welded joint to avoid oxidation and corrosion.

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