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Oxy – Fuel Torch

Oxy – Fuel Torch. Ag Mechanics. Equipment:. Oxygen Cylinder Acetylene Cylinder Pressure Regulators Oxy-Acetylene hoses Torch Body with Cutting attachment Correct Tip. Equipment Cont. Cutting Goggles Safety Glasses Striker Check Valves or Flashback Arrestors. Proper Clothing.

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Oxy – Fuel Torch

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  1. Oxy – Fuel Torch Ag Mechanics

  2. Equipment: Oxygen Cylinder Acetylene Cylinder Pressure Regulators Oxy-Acetylene hoses Torch Body with Cutting attachment Correct Tip

  3. Equipment Cont.. Cutting Goggles Safety Glasses Striker Check Valves or Flashback Arrestors. Proper Clothing

  4. Oxy-Acetylene Hoses. COLOR CODED: Red= Acetylene (Flammable) Green = Oxygen

  5. Oxygen Oxygen- a colorless, odorless, tasteless gas that is heavier than air. Oxygen alone will not burn, but when mixed with other combustibles it becomes highly explosive.

  6. Oxygen is stored as a compressed gas in a steel cylinder to a pressure of 1,800 to 2,200p.s.i. • Turn Cylinder valve open completely

  7. Oxygen Regulator • Right Handed Threads • Regulator has Female Connection, Cylinder has Male Connection • Working pressure between 20 and 60 psi • We (Ag mech) will use 20 psi

  8. Acetylene • Acetylene- is colorless, but has a very distinct odor. This gas is compressed to a pressure of 250 p.s.i. It is composed of carbon and hydrogen. • Turn Cylinder Valve 1/3 or 1/4 turn open.

  9. Acetylene Regulator • Left Handed Threads • Regulator has Male Connection with “V” groove, Cylinder has female Connection. • Acetone is added as a Catalyst. • Working pressure between 2 and 10 psi • Tank pressure, 250 psi • We use 5 psi

  10. Oxygen & Acetylene Cutting • Is a process used to separate metal by heating it to a melting point, somewhere between 1,400 and 1,800 degrees • The metal is then oxidized and blown from the kerf with a stream of pure oxygen

  11. Oxygen Acetylene Safety • Oxygen supports combustion • Cylinders are necessary but can also be highly dangerous • Always cap bottles in transport • Cylinders can explode

  12. Oxygen Acetylene Safety Cont.. 5. Acetylene bottle should be emptied at a rate of 1/7th capacity per hour or less 6. Flames can reach 6,300 degrees F 7. Bottles should be stored in a vertical position at all times.

  13. Cutting Tips • Tips are sized by metal thickness • Adjust pressure to fit metal • Cone of flame does not touch metal • Popping tip means: too close, not enough oxygen, too hot, or dirty tip

  14. Three Types Of Flames

  15. Carburizing Flame • Excess acetylene • Lack of oxygen • Used for soldering & hardsurfacing

  16. Neutral Flame • Correct oxygen • Correct acetylene • Used for cutting, welding & heating

  17. Oxidizing Flame • Excess oxygen • Lack of acetylene • Used for brazing • Usually has a whistling sound

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