How to Evaluate the Quality of a GTAW Welding Machine

May 05, 2026

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Verification of Core Performance Indicators
Verify the duty cycle at the rated current to avoid models with inflated specifications; check current output accuracy-equipment compliant with the GB/T 15579.1-2024 standard must maintain current tolerance within ±2% of the nameplate value.

 

Safety and Compliance Check
The equipment must pass mandatory safety tests under the GB/T 15579 series, meeting all 12 criteria-including insulation resistance, dielectric strength, and overload protection; you may request a third-party quality inspection report from the manufacturer.

 

Real-World Operational Testing
During test welding, observe whether the arc is stable and free of drift; for titanium alloy test plates, the weld seam should appear silver without oxidation discoloration, indicating that the shielding gas system and arc control performance meet standards.

 

Durability and Traceability
High-end models should feature full-process welding parameter recording capabilities to retain data for quality audits and ensure reliable, continuous operation without overheating-related shutdowns.

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