Key Points for Improving Stainless Steel Welding Quality
Release time:
2026-06-29
Four key dimensions for improving stainless steel welding quality.
Ensuring quality in stainless steel welding requires attention to these key areas:
Pre-weld Preparation: - Store welding wire in dry, ventilated areas - Thoroughly clean oil, oxide scale and moisture from workpieces - Ensure groove angle and root face meet specifications
Parameter Optimization: - Reduce current by 20-30% compared to carbon steel due to lower thermal conductivity - Increase travel speed to reduce heat input and prevent sensitization - Control interpass temperature below 150°C for multi-pass welding
Shielding Measures: - Use backing shielding gas with purity ≥99.99% at 15-20 L/min flow - Implement wind protection when现场 wind speed exceeds 2m/s
Operational Points: - Maintain electrode angle of 70-80° to workpiece - Use straight travel or minor oscillation, avoid excessive weaving - Fill crater completely to prevent crater cracking
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