10 Must-Know Safety Tips for Using a Wire Welding Machine (2025 Guide)

Pre-Welding Preparation

1. Workspace Setup

Ventilation & Stability 

Place the machine in a dry, dust-free area with 50cm clearance from walls. 

Ensure airflow >0.3m/s to prevent gas accumulation (use an exhaust fan if needed). 

2. Equipment Inspection Checklist 

Item          Check Standard

Welding Mask   No light leakage, auto-darkening ≥ Shade 10

Power Cable    No exposed wires, fully covered by heat-resistant tape

Grounding     Resistance <1Ω (test with multimeter)

⚡ Safe Operation Guidelines

3. Parameter Settings by Material

Material  Wire Diameter  Current Range   Gas Type

Mild Steel  0.8-1.2mm   90-180A    75% Ar+25% CO₂

Aluminum  1.0-1.6mm   110-220A    100% Argon

4. Temperature Control Protocol

⚠️ Critical Tip: 

Class A Machines: Pause welding if temperature exceeds 60℃ (touch warning label with thermal camera overlay). 

Class B Machines: Allow cooldown at 80℃ (show infrared thermometer checking transformer). 

 

Post-Welding Maintenance

5. Shutdown Procedure

Turn off power → 2. Clean nozzle with brass brush → 3. Cover machine with waterproof tarp. 

 

6. Monthly Safety Audit

Test grounding resistance (<4Ω). 

Replace worn contact tips (avg. lifespan: 200-300h). 

Lubricate wire feeder with silicone spray.

 

FAQ & Troubleshooting

Q: Why does my arc keep breaking?

A: 90% of cases are caused by: 

Loose ground clamp (tighten with 25Nm torque). 

Contaminated wire (use acetone-cleaned spools).

 

Q: Can I weld galvanized steel indoors?

A: Only with forced ventilation + fume extractor – zinc fumes cause metal fever! 

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