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How to cut the gas in a welding machine?

Then open the oxygen valves to the required pressure. After cutting start closing from oxygen and then DA. RIGHT OPERATION Open the DA regulator,the torch valve and light the gas. Then open the oxygen valves to the required pressure. After cutting start closing from oxygen and then DA.

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Indoors, separate oxygen from fuel gas cylinders by at least 6.1 m (20 ft), or by a wall at least 1.5 m (5 ft) high with a minimum half-hour fire resistance. (From: CSA W117.2-12 (R-2017) "Safety in welding, cutting and allied

Acetylene | C2H2 - PubChem

Acetylene was found in whole gas octane levels 87, 89 and 92 at 0.0022, 0.0032 and 0.0037 ppbC%, respectively (1). Acetylene has been detected 12%, 2.9% and 50% of total hydrocarbon concentration in emissions from vehicle exhaust, petroleum exhaust and petrochemical plants, respectively (2).

Acetylene - Wikipedia

Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne.[6] This colorless gas (lower hydrocarbons are generally gaseous in nature) is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution.[7] Pure ...

Acetylene - Wikipedia

Approximately 20% of acetylene is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame. Combustion of acetylene with oxygen produces a flame of over 3,600 K (3,330 °C; 6,020 °F), releasing 11.8 kJ/g. Oxyacetylene is the hottest burning common fuel gas.

Information on Cutting Gases,

Note: Remember when you work out the cost of oxy - fuel gases that a pound of acetylene provides 50% more gas than a pound of propylene or propane Note. Acetylene requires less oxy than any other fuel gas. [] 1-lb C2H2 = 0.4134 cu/m [] C2H2 AUTO IGNITION TEMP IN AIR 1 atm 101.3kPa = 581oF 305oC

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Oxyfuel Cutting - Process and Fuel Gases - TWI

Oxy-fuel cutting is a thermal cutting process that uses oxygen and fuel gas (such as acetylene, propane, MAPP, propylene and natural gas) to cut through materials. The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0.5mm to 250mm, the equipment is low cost and can be used manually or mechanised.

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SAFETY IN GAS. CUTTING ACETYLENE CYLINDERS Maroon in colour. Acetylene gas (C2H2) is dissolved in. acetone (liquid) and stored at 250 psi, in a specially designed cylinder. Acetylene cylinders has a volume of 8.5 m3. Cross Sectional View of DA Cylinder OXYGEN CYLINDERS Oxygen is a colorless, tasteless, and odorless gas and is slightly heavier ...

Gas Welding – Acetylene vs Propane

2016/05/19 · Propane has greater stoichiometric oxygen requirements than acetylene. For the maximum flame temperature in oxygen, the ratio of the volume of oxygen to fuel gas are 1,2 to 1 for acetylene and 4.3 to 1 for propane. So, there is far more oxygen being consumed when using Propane. Despite Propane being less expensive than acetylene, this is ...

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What is the ratio of oxygen and acetylene in gas cutting?

2020/06/13 · An oxyfuel gas flame that is neither oxidizing nor reducing. It is a quiet and clean flame obtained by burning approximately 50% acetylene and 50% oxygen. See also Carburizing Flame, Oxidizing Flame, Reducing Flame Welding.

Can a gas cutting machine be used with a torch?

This portable gas cutting machine can be used with one or two oxy-fuel torches, has a solid aluminum body and can perform straight line cutting, circle cutting, and bevel cutting. Performs high quality straight, circle and bevel cuts; single model includes 1 torch and 3 tips.

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Oxy-fuel welding and cutting - Wikipedia

Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the United States) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline) and oxygen to weld or cut metals. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903.[1 ...

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The gas enters at 80 deg F and 760 mmHg pressure. It leaves at 60 deg F and 730mm. The leaving gas contains, on a dry basis, 1.0 percent ammonia. 5. If the entering gas flows through the empty bottom of the column at an average velocity (upward) of 1.5 ft/s, how many cubic feet of entering gas are treated per hour? a. 400 b. 300 c. 200 d. 100 6.

What do you need to know about oxygas cutting equipment?

OXYGAS CUTTING EQUIPMENT An oxygas cutting outfit usually consists of a cylin- der of acetylene or MAPP gas, a cylinder of oxygen, two regulators, two lengths of hose with fittings, and a cutting torch with tips (fig. 4-1). An oxygas cutting outfit also is referred to as a cutting rig.

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Acetylene Gas- its Characteristics and Safety Requirements ...

2015/05/11 · Acetylene is a flammable and colourless gas. Its molar mass is 26.04 g/mol. It is unstable in pure form and thus is usually handled as a solution. Pure acetylene is odourless, but commercial grades usually have a marked garlic like odour due to impurities. It has a density of 1.11 kg/cum at 1 atmosphere pressure and 15 deg C.

Oxygen And Acetylene Use And Safety - Virginia

•A common inside diameter of oxy -fuel gas hose is 1/4 inch. If you calculate the volume of 100 feet of hose with an inside diameter of 1/4 inch, this means, should oxygen enter the fuel gas hose or should fuel gas enter the oxygen hose, a mixed gas explosion with the force potential of 20 sticks of dynamite could occur!

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used by hobbyist. MAPP gas can be used at much higher pressures than acetylene, sometimes up to 40 or 50 psi in high-volume oxy-fuel cutting torches which can cut up to 12 inch thick steel. A MAPP gas leak is easy to identify because of its particularly terrible odor. Hydrogen. produces low-temperature flame and is best for aluminum. Hydrogen ...

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