This set of articles contains information about safety aspects related to welding in general, welding safety equipment, welding safety precautions, with a special focus on welding in confined spaces.
In most arc welding processes, gases evolve during the arcing operation. These gases should be let out to atmosphere through adequate ventilation. Special attention must be paid when welding in confined spaces. A high concentration of these gases is harmful for the health. A high concentration reduces the oxygen available for breathing for the operator … Read more
This article discusses a few general safety precautions related to welding with oxy-fuel welding process. In the end, a small discussion is included on safety aspects of acetylene cylinders and MAPP gas cylinders. The oxyfuel welding safety precautions include discussion around safely lighting up the torch, shutting off the torch, safety pertaining to fuel cylinders … Read more
The use of welding machines requires some basic safety considerations. Understanding these basic safety aspects of welding ensures safety of both personnel and equipment. Generally welding sources are driven by electrical power supply. In rare cases though, they can be also be driven by a live electric generator converting mechanical power of an internal combustion … Read more
This article discusses some general welding safety precautions that are common to any welding, followed by small discussions on welding in confined spaces and welding fire hazards. General Welding Safety Precautions Following general safety precautions are recommended for any type of welding process: Welding is an activity that must always be approached with utmost safety … Read more
The electric arc is not just a source of intense heat, but also a source of intense electromagnetic radiation. If appropriate and adequate welding protective equipment is not worn by the welder, the intense radiation emitted by the arc and spatter can cause lot of harm to the welder. The radiation emitted by a welding … Read more
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
CAUTION: If **acetylene cylinders **have been stored or transported horizontally (on their sides), stand cylinders vertically (upright) for 45 minutes prior to (before) use. a. Always refer to acetylene by its full name and not by the word “gas” alone. Acetylene is very different from city or furnace gas. Acetylene is a compound of carbon and … Read more