Miller TIG Welder: Miller Diversion 180: Ac/Dc Tig Welder

The Miller Tig Welder Diversion 180: Ac/Dc is an easy-to-use TIG welder for the personal user, the Diversion™ 180 can connect to 115V or 230V power and features a digital display for accurate adjustment of weld settings.  Miller TIG Welder Multi Voltage Plug Use It On 115 AND 230 Volt Input Power Miller’s Multi-Voltage Plug (MVP™) allows you to … Read more

Oxyfuel Welding Fluxes

OxyFuel Welding fluxes are used to protect the metal in the joint area from this oxidation and thus let the molten filler metal flow onto clean metal surfaces. Oxyfuel welding fluxes are available as powder, paste, or rod coating. Flux powder is sprinkled over the slightly preheated joint area. The filler rod is similarly preheated and dipped … Read more

Underwater Welding: Joint Fit-Up

Since most underwater tasks are more cumbersome than similar topside work, the proper positioning of large members or plates underwater for welding is also quite difficult. Understanding properly the skill of underwater welding joint fit-up is therefore important. Positioning and fitting must be done with thoroughness and care to ensure a satisfactory weld. In underwater … Read more

Operating MIG Welding Equipment

Operating MIG Welding Equipment : Starting to Weld Press the inch button and allow enough wire electrode to emerge from the nozzle until 1/2 in. (13 mm) protrudes beyond the end of the nozzle. With the mainline switch “ON” and the argon gas and power sources adjusted properly, the operator may begin to weld. When … Read more

Underwater Welding Overview

In underwater welding, the installation of large patches, as well as the attachment of suitable pad-eyes presents a more complicated problem to the diver than does the underwater cutting. Considerable practice is necessary to achieve a consistently good standard of underwater welding for salvage work. As a result, the diver’s underwater welding techniques must conform to … Read more

OxyFuel Welding Steel

The term “steel” may be applied to many ferrous metals which differ greatly in both chemical and physical properties. In general, they may be divided into plain carbon and alloy groups. By following the proper procedures, most steels can be successfully welded. However, parts fabricated by welding generally contain less than 0.30 percent carbon. Heat … Read more

Fuel Gas Cylinders

Although the most familiar fuel gas used for cutting and welding is acetylene, propane, natural gas, and propylene are also used. Store these fuel gas cylinders in a specified, well-ventilated area or outdoors, and in a vertical condition. Any cylinders should have their caps on, and fuel gas cylinders, either filled or empty, should have … Read more

Oxyacetylene Regulators Malfunctions and Corrections

The leakage of gas between the regulator seat and the nozzle is the principal problem encountered with oxyacetylene regulators. It is indicated by a gradual increase in pressure on the working pressure gauge when the adjusting screw is fully released or is in position after adjustment. This defect, called “creeping regulator”, is caused by bad … Read more

Welding Oxyfuel Working Pressure

The required working pressure increases as the tip orifice increases. The relation between the tip number and the diameter of the orifice may vary with different manufacturers. However, the smaller number always indicates the smaller diameter. For the approximate relation between the tip number and the required oxygen and acetylene pressures, see tables 11-1 and 11-2. See Also: … Read more