The oxygen acetylene regulator in the brazing torch kit can help you adjust the PSI to the necessary position; once you have ignited and adjusted to a neutral flame, move the torch tip slowly along the cut line until the metal is completely separated.
How do you braze with acetylene?
Continue opening the oxygen until the acetylene cone disappears into the white inner core. If the pressures are adjusted correctly for the size of the torch opening, there should be little to no hissing noise coming from the torch. Once the torch flame is adjusted correctly, you are ready to braze. Brazing is a form of non-fusion welding.
How do you put oxygen in a acetylene torch?
Start by opening the valve on top of the oxygen cylinder all the way and the valve on top of the acetylene cylinder 1 ½ turns. With the acetylene valve on the torch slightly open, adjust the regulator pressure to the correct reading, then close the torch valve. Repeat the same procedure for the oxygen.
Why do my oxyacetylene torches keep going out?
It keeps the acetylene from mixing in the hoses and tanks with the oxygen and vice versa. Thanks! Why do the torches keep going out? The work is dissipating heat faster than the torch is producing it. Turn up the torch or use a larger tip. Thanks! Can you provide a list of procedures for adjusting an oxyacetylene torch for brazing?
How do you adjust the pressure on an oxygen torch?
Use a non-adjustable wrench to securely fasten both the oxygen and acetylene hoses to the torch. Having tight connections is extremely important because they will keep both the oxygen and acetylene from leaking. Close both torch valves. For the oxygen, turn the pressure-adjusting screw on the regulator until the gauge reads about 25 psi.
How do you set up an oxygen acetylene torch for brazing?
0:0111:15Oxy Acetylene Brazing- Setup, Leak Test, Reg Adjust, Startup, ShutdownYouTubeStart of suggested clipEnd of suggested clipAnd today we're going over is how to safely set up your oxy acetylene torch. Light it and shut downMoreAnd today we're going over is how to safely set up your oxy acetylene torch. Light it and shut down so that means what we're going to be doing is connecting these regulators connecting the hoses.
Can you braze with an acetylene torch?
An air/acetylene system only requires the use of a single acetylene tank and gets oxygen from the atmosphere. Since air contains only about 21% oxygen, it was difficult for older air/acetylene torches to reach the higher flame temperatures necessary for brazing.
Can oxy-acetylene be used for brazing?
Oxyacetylene is often used to produce precise brazed joints. The two pieces of steel to be brazed, are cleaned with emery cloth, removing grease and dirt. Flux is applied to the joint. This protects the area to be brazed, preventing oxidation (oxidation will prevent the 'solder' from flowing along the joint).
How do you braze copper with oxy-acetylene torch?
4:148:57Brazing Copper Tubing to HVAC Service Valves with a Oxy ...YouTubeStart of suggested clipEnd of suggested clipSo we're gonna open that up and we're gonna turn this in until we get to five psi on this gauge. SoMoreSo we're gonna open that up and we're gonna turn this in until we get to five psi on this gauge. So you want to make sure that this handle is open while you're turning this to five.
What flame is best for brazing?
0:472:03Preferred Torch Brazing Flame Types - YouTubeYouTubeStart of suggested clipEnd of suggested clipNote the reducing. Action this flame is usually recommended for brazing it is a slightly coolerMoreNote the reducing. Action this flame is usually recommended for brazing it is a slightly cooler flame and wraps around more of the part being brave.
How do you adjust for a correct flame when brazing?
Use the valves on the torch to adjust the pressure in order to obtain the correct flame. Always start by lighting the acetylene first and the oxygen second. Holding a friction lighter in on hand open the acetylene valve on the torch a ¼ turn, then ignite the gas. Adjust the flame so that it is smoke-free.
Can you use just acetylene without oxygen?
Decomposition is a chemical reaction whereby acetylene breaks down into its constituent elements, carbon and hydrogen. This reaction gives out a great deal of heat, which can cause the gas to effectively ignite without the presence of air or oxygen.
What is brazing temperature?
Brazing (Melting point: 450°C or higher) A method of welding that uses filler materials while melting the base material as little as possible.
Do you have to use nitrogen when brazing?
Most HVAC installation instructions require flowing nitrogen through the copper tube during brazing. This is an important step in producing a quality HVAC system.
What is the ratio of oxygen to acetylene?
1.2:1Natural GasFuel GasMaximum Flame Temperature °COxygen to fuel gas Ratio (vol)Acetylene3,1601.2:1Propane2,8284.3:1MAPP2,9763.3:1Propylene2,8963.7:14 more rows
What do you tip for brazing?
0:082:43Oxyacetylene Tip Selection - YouTubeYouTubeStart of suggested clipEnd of suggested clipProper tip selection is an important step when brazing copper tubing during the installation of anMoreProper tip selection is an important step when brazing copper tubing during the installation of an AC or refrigeration. System.
What type of gas is used for brazing?
Brazing Gases for Torch BrazingTotal heating valueBurning velocity in O2Acetylene21,50022.7Propane21,80012.2Natural Gas21,10015.4MAPP Gas21,00015.4 ft./sec
Can I weld with just acetylene?
Acetylene produces a flame temperature of ~3100 degree Celsius along with oxygen. This high flame temperature makes acetylene a suitable choice for gas welding steel. 2. Welding: When burned in oxygen, acetylene produces a reducing zone, which easily cleans the metal surface.
Why would an oxyacetylene torch be more effective at brazing joints than an air acetylene torch?
Whereas oxy acetylene is almost twice the temperature and the 2700 degree heat takes a little longer in brazing applications it virtually eliminates the possibility of distorting or melting the metal. Air Acetylene equipment is also completely interchangeable.
Can you braze with MAPP gas?
Mapp gas (a high-temperature mixture of petroleum byproducts) comes liquefied in compact canisters, which allows torches to operate for several hours, and some of the new instant-start brazing tips are quite inexpensive and very easy to use.
Do you need to clean copper fittings?
You don't need to clean the fittings, you'd probably get laid off for something like that in my shop.#N#After your done the copper is going to look black, not like soldering... Don't overheat though.
Do you have to clean copper before brazing?
You don't have to clean copper before you braze it as noted.
