What is an acetylene torch used for?
What is an acetylene torch used for?
Acetylene is widely used for welding purposes, although it is not as common as it once was. In welding, two pieces of metal are pressed together while a welder or welding machine uses an acetylene torch to concentrate heat on the point where the two metals touch.
What are 3 of the most common problems that happen when oxy acetylene welding?
Eye injuries, such as discomfort and burns from the intense light and heat emitted from the operation, and cataracts caused by radiation from molten metal, leading to inability to see things clearly, or corneal ulcer and conjunctivitis from foreign particles e.g. slag and cutting sparks.
When using an acetylene torch what protection should be worn?
5. ALWAYS wear eye protection (safety glasses in addition to #5 welding glasses) . 6. BLOW OUT cylinder valves before attaching regulators.
How dangerous is an acetylene torch?
Acetylene poses unique hazards based on its high flammability, instability and unique storage and transportation requirements. Acetylene is highly unstable. High pressure or temperatures can result in decomposition that can result in fire or explosion.
Do you turn on oxygen or acetylene first?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel. This is only part, but a very important part, of the complete safe operating procedure recommended for torches by Harris.
Which flame is used for cutting operation?
The neutral flame is the flame most generally used when welding or cutting.
What are three dangers of acetylene gas?
Important Dangers of Handling Acetylene Gas
- Asphyxiation Risk.
- Fire Hazards.
- Handling Cylinders.
- Engineering Controls.
- Safe Handling Practices.
- Personal Protective Equipment.
What should oxygen and acetylene regulators be set at?
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 PSI should oxy acetylene?
In case the recommended working pressure settings are not indicated, safe numbers are 40 psi for oxygen and 10 psi for acetylene, regardless of cutting tip size. Simply adjust them until you get a neutral flame, but pay close attention to the acetylene pressure to prevent it from exceeding the limit.
Why is my cutting torch popping?
The reason that an oxyacetylene cutting torch will pop and go out is because of a problem with gas flow. Usually this is either an issue with flow settings, a leak or blockage.
What is flame cutting process?
Flame cutting is a thermal cutting process that uses oxygen and a fuel source to create a flame with enough energy to melt and sever material. The use of oxygen and fuel in the flame cutting process is why it is also often referred to as “oxyfuel cutting”.
Do you use more oxygen or acetylene?
For maximum flame temperature in oxygen, the ratio volume of oxygen to fuel gas are 1.2 to 1 for acetylene and 4.3 to 1 for propane. So, there is far more oxygen being consumed when using propane than acetylene. Despite propane being less expensive than acetylene, this is counteracted by the higher oxygen consumption.
Is acetylene a poisonous gas?
Hazard Class: 2.1 (Flammable) Acetylene is a FLAMMABLE GAS. POISONOUS GASES ARE PRODUCED IN FIRE, including flammable Hydrogen gas. CONTAINERS MAY EXPLODE IN FIRE.
What is the difference between an oxygen and acetylene regulator?
Acetylene regulators control the acetylene pressure from any standard commercial cylinder containing pressures up to 500 psi (3447.5 kPa). The acetylene regulator design is generally the same as that of the oxygen regulator, but will not withstand such high pressures.
What PSI is a full acetylene tank?
A full acetylene cylinder which has a pressure of 250 psi at 700F (1725 kPa at 20 C) will have a pressure of 315 psi at 900F (2175 kPa at 310C) and a pressure of 190 psi at 500 F (1300 kPa at 90C). You must always take temperature into account when estimating how much acetylene the cylinder contains.
Why does my oxy acetylene torch keep popping?
What are the 3 types of flames?
There are three types of flames natural flame, carburizing flame and oxidizing flame.
What happens if you breathe in acetylene?
INHALATION: Acetylene, at concentration below the LEL of 2.5% (25000 ppm), is essentially non-toxic. At higher concentrations, Acetylene has anesthetic effects. Symptoms of over-exposure to such high concentrations may include drowsiness, dizziness, and a general feeling of weakness.
What is the maximum psi that is safe for acetylene?
Maximum pressure. Under no condition shall acetylene be generated, piped (except in approved cylinder manifolds) or utilized at a pressure in excess of 15 psig (103 kPa gauge pressure) or 30 psia (206 kPa absolute).