What is the other term for oxy fuel cutting?
The process often called Flame Cutting is known by many names, such as Oxy Acetylene Cutting, Oxy Fuel Gas Cutting, Oxygen Burning, Steel Burning and other terms too numerous to mention. The process is now about 111-112 years old as it was patented in 1901 by Thomas Fletcher.
What are the oxygen and acetylene pressures when cutting?
The gas pressures should be set at 3 to 5psi for Acetylene, and 20 to 30psi for the oxygen, but when you squeeze the oxygen lever after the initial flame adjustment of the preheat flames to neutral just to a point where the feather disappears,the oxygen cutting stream should be visible and at least 4 inches in length …
What pressure is oxy acetylene?
The fuel-gas pressure is 0.07 bar (1 psi – pound per square inch) or less. The oxygen pressure ranges between 0.7 to 2.8 bar (10 to 40 psi), depending on the size of the torch tip.
What is the working pressure for the acetylene?
The working pressure of acetylene equipment is critical: Acetylene pressure must not exceed 0.62 bar (9psi) unless equipment has been specifically designed for it.
What is the process of oxy acetylene cutting?
A heating flame is directed on the metal to be cut to raise it to bright red heat. Then a stream of high-pressure oxygen is directed on to the hot metal. The Steel and Iron is immediately oxidised to magnetic oxide of iron (Fe3O4). The metal is cut entirely by exothermic chemical action.
Is plasma cutting the same as flame cutting?
Plasma arc cutting is another thermal cutting process. However, unlike flame cutting, it uses an electrical arc to ionize and heat a gas to form plasma that is used to cut the material. The electrical arc is created at the plasma cutting torch through the use of a tungsten electrode.
What is the best way to set the oxygen pressure for cutting?
What is the best way to set the oxygen pressure for cutting? Make sure the oxygen cylinder is secure and open the valve all the way. What metals can be cut with the oxyfuel gas process?
What is the pressure setting for cutting torches?
between 5-15 psi
NOTE: Most torch mixers use a “positive” design that requires fuel gas pressures set between 5-15 psi for cutting applications. However, some torches use an injector (low pressure) mixer design that only requires ΒΌ – 2 psi of alternate fuel gas.
What is the working pressure of oxygen?
For many reasons, patients that require additional oxygen use storage tanks with compressed oxygen to supplement their normal air intake. The size and subsequent capacity of the tank may vary but the full pressure is typically about 2,000 psi and can go as high as 3,000 psi.
What happens to acetylene above 15 psi?
Acetylene will not explode under low pressure at normal temperatures. However, it becomes unstable and spontaneously combustible when compressed to a pressure over 15 psi. Beyond 29.4 psi, it becomes self explosive, and a slight shock may cause it to explode even in the absence of air or oxygen.
How to use an oxy acetylene cutting torch properly?
The proper use of an oxy acetylene cutting torch, especially with the right pressure settings, ensures that the quality of the cuts made would rival that of machine cuts. Not only that, but this will also guarantee a safe operation.
What is the psig setting for oxo-acetylene cutting pressure?
Oxy-Acetylene Cutting Pressure Settings & Chart Thickness of metal in inches Tip size Pre-heat oxygen (PSIG) Pre-heat oxygen (SCFH) Cutting oxygen (PSIG) 0.125 000 3/5 3/5 20/25 0.25 00 3/5 4/8 20/25 0.375 0 3/5 5/9 25/30 0.5 0 3/6 7/11 30/35
What is the oxygen regulator setting for oxy acetylene?
This recommendation applies when cutting less than 1.5 inch steel with the use of propane, propylene or natural gas. The recommended setting for multi-hole cutting using oxy acetylene is the oxygen regulator at 40 psig with the acetylene regulator setting at 10 psig.
How to make a smooth cut with acetylene flame?
The cut can be made smooth by the use of oxygen and acetylene but not hydrogen. High heat is required by for cutting. The flame is adjusted to excess pressure of acetylene. High pressures are used in order to supply sufficient heat for oxidation. The blowpipe is given a zigzag movement to remove slag and metal which are a must for a clean cut.