Oxy-fuel welding and cutting

Oxy-fuel welding is a welding process commonly called oxyacetylene welding since acetylene is the predominant choice for a fuel, or often simply gas welding. A virtually identical procedure, with a different type of gas torch, a blowtorch, is used for cutting metal and called oxy-fuel cutting. In gas welding and cutting, the heat energy and high temperature needed to melt the metal is obtained by the combustion of a fuel gas with oxygen in a torch. Oxy-fuel welding and cutting - Fuels. Including:

• Oxy-fuel welding and cutting - Fuels
• Oxy-fuel welding and cutting - Apparatus
• Oxy-fuel welding and cutting - Setting up the equipment
• Oxy-fuel welding and cutting - The flame
• Oxy-fuel welding and cutting - Blowlamps

Read more here: » Oxy-fuel welding and cutting: Encyclopedia - Oxy-fuel welding and cutting

The most commonly used fuel gas is acetylene. Other gases used are propylene, liquified petroleum gas (LPG), natural gas, hydrogen, and MAPP gas. Most, perhaps all, of these fuels are also burned with atmospheric oxygen. Torches that do not combine pure oxygen with the fuel while still in the torch, do not count as oxy-fuel torches. These torches can be identified by their single tank. (Oxy-fuel welding requires two tanks, fuel and oxygen.) In addition, most metals cannot be melted with such single-tank torches, so they ca ...

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Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Fuels

After this preparation, set the regulators at the desired pressure. For acetylene, this should never be more than 103 kPa (15 lbs/in²). Open the fuel valve open less than one quarter of a turn, light with a flint striker. After the flame is adjusted to the proper size, open the oxygen valve and adjust it to give the desired balance of fuel and oxygen. Usually a neutral flame is used: this is a flame where the fuel and oxygen supplied to the torch tip are both completely combined with each other. An oxidizing flame has an excess of oxygen an ...

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Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame, Oxy-fuel welding and cutting - Blowlamps

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - The flame

The apparatus used in gas welding consists basically of a torch, two pressure regulators and twin flexible hoses. The torch is the part that the welder holds and manipulates to make the weld. It has two valves and two connections, one each for the fuel gas and the oxygen, a handle for the welder to grasp, a mixing chamber where the fuel gas and oxygen mix, and a tip where the flame issues from. The regulators are attached to the fuel and to the oxygen sources. The oxygen regulator is attached to the oxygen tank and drops the pr ...

See also:

Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Apparatus

When using fuel and oxygen tanks they should be fastened securely to a wall, a post or a portable cart in an upright position. An oxygen tank is especially dangerous for the reason that the oxygen is at a pressure of 21 MPa (3000 lbs/in² = 200 atmospheres) when full and if the tank falls over and the valve strikes something and is knocked off, the tank will become an unguided and unpredictable missile powered by the compressed oxygen. It is for this reason that an oxygen ...

See also:

Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Setting up the equipment

When using fuel and oxygen tanks they should be fastened securely to a wall, a post or a portable cart in an upright position. An oxygen tank is especially dangerous for the reason that the oxygen is at a pressure of 21 MPa (3000 lbs/in² = 200 atmospheres) when full and if the tank falls over and the valve strikes something and is knocked off, the tank will become an unguided and unpredictable missile powered by the compressed oxygen. It is for this reason that an oxygen ...

See also:

Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame, Oxy-fuel welding and cutting - Blowlamps

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Setting up the equipment

The most commonly used fuel gas is acetylene. Other gases used are propylene, liquified petroleum gas (LPG), natural gas, hydrogen, and MAPP gas. Most, perhaps all, of these fuels are also burned with atmospheric oxygen. Torches that do not combine pure oxygen with the fuel while still in the torch, do not count as oxy-fuel torches. These torches can be identified by their single tank. Oxy-fuel welding requires two tanks, fuel and oxygen. In addition, most metals cannot be melted with such torches, so they ca ...

See also:

Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame, Oxy-fuel welding and cutting - Blowlamps

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Fuels

The apparatus used in gas welding consists basically of a torch, two pressure regulators and twin flexible hoses. The torch is the part that the welder holds and manipulates to make the weld. It has two valves and two connections, one each for the fuel gas and the oxygen, a handle for the welder to grasp, a mixing chamber where the fuel gas and oxygen mix, and a tip where the flame issues from. The regulators are attached to the fuel and to the oxygen sources. The oxygen regulator is attached to the oxygen tank and drops the pr ...

See also:

Oxy-fuel welding and cutting, Oxy-fuel welding and cutting - Fuels, Oxy-fuel welding and cutting - Apparatus, Oxy-fuel welding and cutting - Setting up the equipment, Oxy-fuel welding and cutting - The flame, Oxy-fuel welding and cutting - Blowlamps

Read more here: » Oxy-fuel welding and cutting: Encyclopedia II - Oxy-fuel welding and cutting - Apparatus