When setting up oxyacetylene welding equipment, it is important that all operations be performed systematically in order to avoid mistakes and possible trouble.
The setting up procedures given in a through d below will assure safety to the operator and the apparatus. Do not stand facing cylinder valve outlets of oxygen, acetylene, or other compressed gases when opening them. If it is necessary to blow out the acetylene hose, do it in a well ventilated place which is free of sparks, flame, or other sources of ignition. Use a soap and water solution to test for leaks at all connections. Tighten or replace connections where leaks are found.
Release the regulator screws after testing and drain both hose lines by opening the torch needle valves. Slip the tip nut over the tip, and press the tip into the mixing head. Tighten by hand and adjust the tip to the proper angle. Secure this adjustment by tightening with the tip nut wrench. Purge both acetylene and oxygen lines hoses prior to igniting torch.
Failure to do this can cause serious injury to personnel and damage to the equipment. Please let me know what you thought of this article by leaving a comment. Cleanliness and fits will be adhered to and checked fo leaks.
Your email address will not be published. Setting up Oxy Acetylene Kit is not rocket science, but it is important to do it correctly. Setting up Oxy Acetylene Kit — the basics Oxy Acetylene fittings consist of a concave Female sealing face on one component and a Male ball shaped sealing face on the other.
A Nut clamps these faces together to form a gas tight seal. Threads are not designed to be gas tight as gas will not come into contact with the threads. Fit The Hose to the Flash Arrestor. Note, it may be that both ends of your hose are the same size nut, allowing the hose to be fitted the wrong way round.
The Torch end has a Check Valve one way valve , if the hose is fitted the wrong way around, you will not get any gas out! Release all pressure from any system that has a leak. Reattach or retighten as needed, and apply the leak-test solution a 2nd time to test the torch for leaks again.
After completing the testing, make sure to turn off both the oxygen and acetylene. Part 4. Turn the oxygen regulator pressure-adjusting screw. Slowly do this until you reach the desired pressure. The pressure will be indicated on the delivery-pressure gauge. Then you will close the torch oxygen valve. If you are using a cutting torch, open only the torch cutting oxygen valve. If you are using a cutting attachment, open the oxygen valve on the torch handle and the cutting oxygen valve on the attachment.
Adjust the acetylene adjuster screw to the desired working pressure. Do not exceed 15 psi. Close the acetylene valve immediately after you obtain the right pressure.
Do not release acetylene or other gasses near sources of ignition. Also, make sure you are working in a well-ventilated area. It is advisable to keep a fire extinguisher in your workspace in case there are any explosions or emergencies.
Part 5. Read it thoroughly before following steps or tips from any other sources. A lot of sites have community forums where people post tips and stories about their experiences that you can learn from. Use a friction lighter rather than a match for this step. A friction lighter is also called a torch striker, and these can be found at hardware stores.
You will see a flame coming out of your torch. Remember to not have the oxygen gas flowing when you go to light the torch.
Reduce the acetylene flow by adjusting the torch acetylene valve. The flame should start to produce black smoke around the edges. Once the black smoke appears, start to increase the acetylene flow back up again just enough to get rid of the black smoke.
The lighting procedure should result in a neutral flame, which is blue in color and which does not make a hissing sound. Stop working if the flame suddenly goes out. If this happens, go ahead and relight the torch again right away. If backfire occurs repeatedly without contact with the work, it may be due to incorrect operating pressures or a loose nozzle in the torch. In this case, check the operating pressures and take a look at the torch to make sure everything is connected properly.
Turn off the torch if there is flashback. Flashback is when there is a pronounced hissing or squealing noise. This means there is something wrong with the torch or with the set up. After turning off the torch and investigating the cause, wait until the torch has cooled before attempting to light it again. Because it is a corrosion resistant metal that will not create sparks when struck against other substances.
Not Helpful 1 Helpful There is a tip called a rose bud that produces a large area to heat metals. A brazing tip can work on smaller areas. Not Helpful 5 Helpful The CPG will show about psi on a full acetylene bottle and decrease as it is used. The WPG indicates the gas pressure to the torch and is set by the regulator.
Not Helpful 3 Helpful You can't, because it's a carbon gas. Do not try lighting with some oxy because that is an explosive mixture. Not Helpful 11 Helpful You could lay the oxygen bottle down, but never lay the acetylene bottle down. The acetylene bottle contains acetone, which helps stabilize the acetylene. Laying the bottle down could lead to venting the acetone. A general rule of thumb is don't lay either bottle down. Not Helpful 14 Helpful It is a back-flow preventer.
It keeps the acetylene from mixing in the hoses and tanks with the oxygen and vice versa. Not Helpful 12 Helpful The work is dissipating heat faster than the torch is producing it.
Turn up the torch or use a larger tip. Not Helpful 10 Helpful Can you provide a list of procedures for adjusting an oxyacetylene torch for brazing? Sarah Battilana. To achieve uniform capillary action, both parts must be evenly heated before adding rod.
Preheating conducts heat through the joint and brings both pieces to the right brazing temperature.
0コメント