Most cutting torches are lit up using this method: Slightly open the valve for acetylene on the cutting torch. Make sure that it does not exceed a half-turn. Use a flint striker or spark lighter to ignite the acetylene gas flowing out of the torch’s nozzle. Soot or black smoke Once the smoke is. Jun 20, · A very basic "how-to" article created with Photo Story 3. How to setup and light an oxy-acetylene torch. Also, basic procedures on how to shut it down, purge.
Lighting, adjusting and shutting down an oxygen-acetylene torch is easy — especially when following the proper procedures. In addition to these easy to follow instructions, you must always be sure to follow the torch manufacturer's operating procedures. Remember to always follow basic safety rules when working with oxy-fuel equipment. How to properly light, adjust and shut down an oxy—acetylene torch. Home Blog How to properly light, adjust and shut down an oxy—acetylene torch. Harris Products Group.
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Did you know that you can solder an HVAC connection? May 3 Did you know that gas flames produce infrared radiation? Did you know that a protocol station can extend the life of a regulator? How to properly light, adjust and shut down an oxy—acetylene torch August 3 What general maintenance should be performed on a regulator and how often? What factors go into selecting regulator gauges?
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May 1 What is the difference between gas welding and braze welding? October 1 Why is flux required when brazing brass and not required with copper to copper? September 1 Acetylene vs.
How to properly light, adjust and shut down an oxy–acetylene torch
First - before you attempt to light the torch follow these checks: Make sure regulator pressure adjustment screws are backed out! Make sure torch valves are closed! Stand away from front of regulator Separately and slowly open the oxygen and acetylene cylinder Author: Harris Products Group. Next to the manufacturer's operation manual and safety guidelines, the cutting tip chart is the next important printed advice for having a safe, great hand cutting torch experience. If you are having trouble lighting a torch, correctly adjusting the flame or the torch just will not stay lit, the cutting tip chart contains the most likely Author: Harris Products Group.
Does the thought of using an oxy acetylene cutting torch intimidate you? We feel you. After all, dealing with two tanks that are at risk of catching fire as you work sounds risky. You would rather have all your body parts firmly attached as you work, right? If you have the right settings for the entire system, you can safely use an oxy acetylene torch for all your projects.
Not only that, you must light the torch and shut it off correctly. Yes, there are proper ways to do all that. We carefully reviewed a bunch of products, and these are our recommendations. Before you set up your cutting torch, you must first understand how it works so that you can handle it properly. Not only that, this will allow you to get a cut of good quality, which is only possible if done correctly. For more serious cutting jobs, we do recommend the use of a plasma cutter , though.
An oxy acetylene cutting torch allows oxygen to mix with acetylene to combust and produce a flame that has a temperature exceeding C. This kind of flame is the only one hot enough to cut through mild steel, specifically any kind of steel that only has a maximum of 0. The cutting torch pre-heats steel for it to reach that temperature; a cherry red color on the steel will be the sign that it has been adequately preheated.
When oxygen from the cutting torch reaches the unprotected steel, an exothermic reaction occurs that causes it to form oxidized liquid steel or slag. Because steel has a higher melting point, this slag that formed can easily be blown away by oxygen. This then reveals the solid steel that has not been oxidized. The exothermic reaction that occurs is continuous as long as the cutting torch is lit up and the flame hits the steel.
This constant reaction prevents a crust from forming on the steel, which immediately occurs if the protection against oxygen is still present on the steel. Because there is no crust that forms, the oxygen from the cutting torch can now penetrate the exposed solid steel and cut through it. Due to the acetylene present, the flame produced by the cutting torch is the highest among all oxyfuel cutting processes.
This means you can make cuts much faster and of better quality than the other methods. Large cylinder tanks. With all these components, setting up an oxy acetylene torch can be an overwhelming experience. While we admit that setting it up is not a straightforward affair, it is still doable even by beginners.
Setting up such a system is pretty standard, but you must first check for any unique instructions the manufacturer of your cutting torch may have. After setting up, you still need to do some checks before attempting to light your cutting torch. Make sure that the regulators are facing away from you when you do the following:.
After successfully doing a leak test, you can now light up your oxy acetylene cutting torch following the instructions of the manufacturer. Because of the gases involved, lighting up a cutting torch is done differently. Unlike other torches, a cutting torch will not produce a flame with just a push of the button. You should only use a flint striker to light a cutting torch because using smaller lighting devices, such as a match or lighter, are too small and will put you at risk of burning your hands as you light up the cutting torch.
Also, you must make sure that the tip of your cutting torch is facing away from you, other people, and any flammable objects. But if your cutting torch has its own ignition device, skip the above steps and follow the instructions given. Because there is also no knob or button present on the torch to stop the flame, you must manually shut down your oxy acetylene cutting torch by cutting off the gas being supplied.
If you are not yet aware, there is a seemingly never-ending debate about which gas supply to switch off first — oxygen followed by acetylene or acetylene then oxygen. While both methods are considered correct, manufacturers generally advocate shutting off the oxygen valve first before acetylene. This method allows the acetylene still flowing to blow off the soot that settles in the crevices of your torch; any soot present can affect the seal of the gas valves and cause a leak.
Not only that, but this order also allows you to conduct a leak test before cutting off the gas supply. Once you cut off the oxygen supply then acetylene, the presence of a small flame despite no gas flowing to the torch will indicate a leak.
Early leak detection helps prevent an explosion. Another advantage of cutting off the oxygen supply first is that mini flashbacks are less likely to occur. Despite most cutting torches having protective features against it, flashbacks can still happen. Mini flashbacks occur in the form of a loud pop or bang. While generally considered harmless, mini flashbacks can still cause accidents. If you are done with your work and need to return your equipment to its storage, you must follow the following steps:.
When storing the oxygen and acetylene tanks, make sure to keep it in a dry and airy location far away from any flammable objects. Always keep them in a vertical position. Have you ever attempted to cut cast iron using an ordinary blowtorch?
If so, you may have realized that it is a futile effort. But if you are using a cutting torch to do so, the result will be different. Because an oxy-acetylene torch has the highest flame temperature present, it can easily cut through even steel that is at least mm thick. But when it comes to cutting cast iron, it is also possible but it will not give you a clean cut and is a bit harder to do. Preheating the cast iron is crucial to cut through it, and this is done by setting the cutting torch so that it produces a carburizing flame, instead of a neutral flame, and with the highest possible temperature.
This type of flame offers better preheating to the cast iron and also stops oxides from rapidly forming. Preheating should be done from the top all the way to the bottom and with more acetylene so that the heat will deeply penetrate the cast iron. Once it is sufficiently preheated, make small semicircles around the preheated line to melt the iron.
Finally, use the oxygen jet to blow off the molten iron and cut through it. You may need to use flux to help you make the cut. Because of the complicated process, using an oxy acetylene cutting torch to cut through cast iron is not often used. In fact, there are other methods specially developed for this purpose.
Are you wondering if you need to buy separate welding equipment if you already have a cutting torch and need to do some welding? If so, we have good news — you can also use your oxy acetylene cutting torch for your welding needs. In fact, this process is known as oxy acetylene welding. Basically, the metals are placed side by side, with a small gap present between them, and are melted together by the oxy-acetylene flame. When they cool down, the melted sections are already bonded to form a weld seam.
Oxy acetylene welding can be used if quickly joining metals together is your only concern because the weld seam formed is not as neat as the ones created by other welding methods. A neutral flame is also used for welding using a cutting torch, but you need to move your torch in a circular manner so that the metals will melt and pool towards the small gap present between them. While the weld seam formed using this method is strong enough, you can also add filler material using a rod to increase its strength.
An oxy acetylene cutting torch, contrary to its name, is not only used for cutting. You can also use it in different ways, making it such a versatile tool that you must have in your workshop. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content Does the thought of using an oxy acetylene cutting torch intimidate you?
Runner-up Hobart Medium Duty. Best cheap option Stark Professional. User review. It fits my needs and worked out nicely. Works fine for a cheap welding kit. Our professional opinion. Great value set which will get the job done. Same quality as "best value" option, however, more expensive. Reputable, American company you can count on. Good budget set, although with its limitations.
Check price. Check price on Amazon. Best value option Recommendation. ZenStyle Gas Cutting Torch. Runner-up Recommendation. Hobart Medium Duty. Best high-end Recommendation. Best cheap option Recommendation. Stark Professional. Leave a Comment Cancel Reply Your email address will not be published.