Purge the hoses
before lighting the torch
to remove any potentially explosive gas mixtures; Ensure the cutting torch is fitted with spring-loaded non-return valves; Use the correct gas pressures and nozzle size for the job; Maintain the equipment in good condition.
How do you store a cutting torch?
ACETYLENE STORAGE
Keep cylinders away from external sources of heat. Cylinders are not designed for temperatures in excess of 125F (52C).
Acetylene must be stored at least 20-feet away from oxygen or separated by a five foot high fire-rated wall
.
Why is my acetylene 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.
Why and how should the torch tip be regularly cleaned?
Cleaning your torch tips regularly
helps to prevent deposits from building up
. Torch tip cleaning kits are available at home improvement centers and contain several size rods to remove buildup from inside the torch tip.
How do you prevent a reverse gas flow?
Do you turn on oxygen or acetylene first?
You can start by turning on the acetylene valve by 1/8
th
of a turn and igniting the flame. Now slow down the flame until the smoke is reduced to a minimum. You see the flame turning into a feather-like shape towards the end. Now
turn on the oxygen valve slowly
and watch the preheat flames appear.
What is a cutting tip?
[′kəd·iŋ ‚tip] (engineering)
The end of the snout of a cutting torch from which gas flows
.
What should my torch gauges be set at?
The recommended setting for multi-hole cutting is the
oxygen regulator at 40 PSIG, with the acetylene regulator setting at 10 PSIG
. As with the previous recommendation, this applies to cutting less than 1.5 inches thick steel.
How is a torch tip seal check for a leak?
- Use the Safetest Leak Detection Spray.
- Spray directly onto the joints and connections.
- Check that torch valves are closed and that regulators are set to zero outlet pressure.
- Open acetylene cylinder valve very slowly (sudden opening may cause damage to the regulator)
How do you cut a torch with oxygen acetylene?
How do you turn off a cutting torch?
Can you store oxygen and acetylene together?
Acetylene cylinders and oxygen cylinders both have their own unique risks and hazards, and
MUST NEVER be stored together
as they can react dangerously with one another.
Is it safe to lay an acetylene bottle on its side?
Acetylene cylinders must not be placed on their sides
, since the acetone and binders will have dislodged. The result may be formation of an acetylene “pocket” that is subject to polymerization and the possibility that liquid acetone will be released into the regulator.
Can acetylene be stored inside?
Acetylene cylinders are not designed for use in environments where the temperatures may exceed 52oC (125oF)
. Above this temperature if it is filled to maximum capacity there is not enough room for the acetone and acetylene to expand inside of the cylinder.
How do you maintain a torch?
- Use quality butane. – Good butane will burn clean and keep the jets on the torch cleaner. …
- Purge torch of all butane and air before filling and refilling. …
- Don’t torch too close. …
- Use your torches.
Can a broaching wire be used to clean a torch tip orifice?
A broaching wire can be used to clean a torch tip orifice
. During backhand welding, the torch tip points opposite the direction of travel. If the welding torch is held at too high an angle, the base metal will be heated more slowly. While the torch is being lighted, the tip should not be pointed at another person.
Are you supposed to tip cleaning ladies?
When it comes to home much to tip there is a standard. For a cash tip,
a good rule of thumb is 15-20% of the total cleaning service cost
. This is a good standard to use for tipping on all routine cleaning services. But tipping can also show cleaners that you appreciate their cleaning services and them as a cleaner.
What is backfiring in gas welding?
Backfire is the momentary retrogression or burning back of the torch flame, into the welding or cutting torch tip accompanied by a loud popping sound and also accompanied by the immediate reappearance or the complete extinguishments of the flame.
What causes flashback in oxy acetylene?
Flashbacks are commonly caused by
a reverse flow of oxygen into the fuel gas hose
(or fuel into the oxygen hose), producing an explosive mixture within the hose. The flame can then burn back through the torch, into the hose and may even reach the regulator and the cylinder.
How do you stop a gas fire from backfiring?
Check that the regulators and nozzle size are suitable for the type of work
. Set each regulator to the correct working pressure for the equipment in use. Keep the nozzle away from any source of ignition (pilot light, smouldering tow, etc.) until the fuel gas is flowing freely from the nozzle.
Is Mapp more sensitive to shock than acetylene?
MAPP gas is more sensitive to shock than acetylene
. Needle valves on the torch regulate the flow of oxygen and acetylene at the torch. Two types of regulators are the single-stage and the two-stage. Welding hoses can be safely repaired with tape.
How far should acetylene valves be turned on?
An acetylene cylinder valve shall
not be opened more than one and one-half turns of the spindle
, and preferably no more than three-fourths of a turn.
When using an oxy acetylene torch should you use a flame?
The
Neutral Flame
. The neutral flame has a one-to-one ratio of acetylene and oxygen. It obtains additional oxygen from the air and provides complete combustion. It is generally preferred for welding.
What is the hottest cutting torch?
The hottest most-versatile gas, acetylene, is very easy to use for all purposes. Pre-heat time for cutting and gouging is relatively short because the flame temperature is
between 5,600 and 5,800 F
. However, this gas is the most expensive gas available and is not the most efficient for heating large areas.
Are good metals to gouge because there is almost no cleanup?
Stainless steel
is a good metal to gouge because there is almost no clean-up.
What a torch is used for in cutting?
In oxy-fuel cutting, a torch is used
to heat metal to its kindling temperature
. A stream of oxygen is then trained on the metal, burning it into a metal oxide that flows out of the kerf as dross.
