There are many components that make up an oxy-acetylene out fit.
• Cylinders.
• Regulators.
• Hoses.
• Torches. (welding & cutting)
• Tips.
• And your PPE.
CYLINDERS
• Cylinders should be checked regularly with date of the last test stamped on the top of the cylinder.
• Always stored in the up right position.
• When not being used, the valve cap should always be in place
REGULATORS
• The desired working pressures for the torch is accomplished by using the pressure reducing regulator.
• The regulator maintains a steady working pressure as the pressure drops in the bottle.
WELDERS WRENCH
• This tool is most important for any oxy welder as it contains eight (8) open end sizes for all hose connections, welding and cutting tips.
• There is also a socket to open and close the bottles.
WELDING HOSES.
• The cylinder regulators and torch usually connected by a double line hose.
• The oxygen line is GREEN and the acetylene line is RED.
• Care should always be taken of the hoses and they should be checked daily.
• Remember to only open the cylinder by ½ turn maximum.
CHECK VALVES.
• Are there to prevent flash back (back flow)
• Always fit the hoses correctly and keep the connections clean
-Cutting Torces
- Welding Torches
TORCHES
• Cutting torch is used for cutting steel by the use of cutting tips.
• The welding torch takes the welding tips to transfer the heat to the work.
CUTTING TIPS
• Always clean the cutting tips before commencing cutting
FLAMES
• Neutral is used for welding most metals including mild steel.
• Oxidizing is used to braze steel, cast iron and weld brass and bronze.
• Carburizing is used for welding high carbon steels And non-ferrous alloys.
Safety Notes
• Gas cylinders must always be secured to a solid structure with a chain to prevent them falling or rolling.
• Always keep the welding equipment free of oil and grease and away from oily rags.
• Check for adequate ventilation before welding.
• Keep all flammable material away from the work area
• Wear the appropriate welding goggles (shade5) and gloves.
• Release the regulator pressure screw and open the cylinders slowly.
• If leaks are detected in the equipment, shut all valves off and report it.
• Open the acetylene cylinder ½ turn maximum
• The normal pressure setting for acetylene is 5 p.s.i. with a maximum of 15 p.s.i. Acetylene explodes above 15 p.s.i.!
• The oxygen cylinder valve should be opened all the way as it is a double seating valve.
• The normal pressure setting for oxygen is 10 p.s.i. with higher settings use for torch cutting.
• Point the torch away from yourself before lighting it.
• Use a friction torch lighter (flint striker) to ignite the torch.
• Close the acetylene valve first if the torch back fires.
• Keep sparks and flames away from the gas cylinders and hoses.
• Never roll equipment over hoses or cords!
• Close both cylinder valves and then.
• Do not carry lighters, matches ot othe flammable objects when welding or cutting
• Release the pressure from the lines when the job is finished.
source : MNL safety briefing
Filed under: Oxy-Acytelin Welding
