745 Welding, Cutting, and Brazing Safety

Gas Welding/Cutting Equipment

Air-Acetylene Welding/Cutting Equipment

Air-acetylene welding uses acetylene gas mixed with ambient air, creating a flame hot enough for soft soldering, silver brazing, and certain types of heating tasks. It is generally simpler, avoids overheating, and safer than using oxy-acetylene.

Equipment includes: Acetylene cylinder, air-acetylene torch, regulator, hoses, and goggles.

Operation Steps: The following is a brief list of steps to safely operate the equipment:

1. Inspect torch, hose, and cylinder.
2. Open acetylene cylinder slowly, set pressure.
3. Ignite torch with spark lighter.
4. Adjust flame for task.
5. Complete welding or brazing.
6. Turn off torch, close cylinder, and release regulator pressure.

Safe Operation Guidelines: Comply with the following safe procedures and practices when using air-acetylene equipment to prevent accidents and health risks:

• Inspect cylinders and regulators before use. Always check for leaks, damage, or signs of wear. Make sure connections are tight and equipment is in good condition to avoid gas leaks or pressure issues.
• Keep acetylene pressure within manufacturer-recommended limits. Using the correct pressure helps maintain a stable flame and reduces the risk of flashbacks or explosions.
• Use a spark lighter (never matches or cigarette lighters). Spark lighters are designed for safe ignition. Matches or lighters can cause unexpected flare-ups and serious injuries.
• Ensure proper ventilation due to acetylene combustion. Burning acetylene produces carbon monoxide and other gases. Adequate airflow helps keep the air safe to breathe and prevents buildup of harmful fumes.
• Wear appropriate goggles and protective gear. Eye protection shields against sparks and bright flames. Flame-resistant gloves and clothing protect skin from burns and heat.

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