Oxyfuel Welding Safety Precautions

The following oxyfuel welding safety precautions should be observed: Do not experiment with torches or regulators in any way. Do not use oxygen regulators with acetylene cylinders. Do not use any lubricants on regulators or tanks. Always use the proper tip or nozzle, and always operate it at the proper pressure for the particular work … Read more

Welding Machines: Safety

The use of welding machines requires some basic safety considerations. When electric generators powered by internal combustion engines are used inside buildings or in confined areas, the engine exhaust must be conducted to the outside atmosphere. Check the welding equipment to make sure the electrode connections and the insulation on the holders and cables are … Read more

Gas Shielded Arc Welding Safety Precautions

** POTENTIAL HAZARDS** When any of the welding processes are used, the molten puddle should be shielded from the air in order to obtain a high-quality weld deposit. In shielded metal arc welding, shielding from the air is accomplished by gases produced by the disintegration of the coating in the arc. With gas shielded arc … Read more

Welding Health Protection And Ventilation

All welding and thermal cutting operations carried on in confined spaces must be adequately ventilated to prevent the accumulation of toxic materials, combustible gases, or possible oxygen deficiency. Monitoring instruments should be used to detect harmful atmospheres. Where it is impossible to provide adequate ventilation, air-supplied respirators or hose masks approved for this purpose must … Read more

Welding In Confined Spaces

Welding in confined spaces is intended to mean welding in a relatively small or restricted space such as a tank, boiler, pressure vessel, or small compartment of a ship or tank. When welding or cutting is being performed in any confined space, the gas cylinders and welding machines shall be left on the outside. Before operations … Read more

General Welding Safety

General Welding Safety Precautions a. To prevent injury to personnel, extreme caution should be exercised when using any type of welding equipment. Injury can result from fire, explosions, electric shock, or harmful agents. Both the general and specific safety precautions listed below must be strictly observed by workers who weld or cut metals. b. Do not permit … Read more

Protective Welding Screens

a. When welding is done near other personnel, welding screen should be used to protect their eyes from the arc or reflected glare. b. In addition to using portable screens to protect other personnel, welding screen should be used, when necessary, to prevent drafts of air from interfering with the stability of the arc. c. … Read more

Plasma Arc Welding Safety

When plasma arc welding, safety is an important consideration. Plasma arc welding is a process in which coalescence is produced by heating with a constricted arc between an electrode and the workpiece (transfer arc) or the electrode and the constricting nozzle (non-transfer arc). Shielding is obtained from the hot ionized gas issuing from the orifice which … Read more

MAPP Gas Cylinders Safety

a. MAPP gas is a mixture of stabilized methylacetylene and propadiene. b. Store liquid MAPP gas around 70°F (21°C) and under 94 PSIG pressure. c. Repair any leaks immediately. MAPP gas vaporizes when the valve is opened and is difficult to detect visually. However, MAPP gas has an obnoxious odor detectable at 100 parts per … Read more

Welding Fire Hazards

a. Fire prevention and protection is the responsibility of welders, cutters, and supervisors. Approximately six percent of the fires in industrial plants are caused by cutting and welding which has been done primarily with portable equipment or in areas not specifically designated for such work. The elaboration of basic precautions to be taken for fire … Read more