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Arc Welding Machines : Alternating Current 10 Aug 2013 | 11:43 pm
a. Most of the alternating current arc welding machines in use are of the single operator, static transformer type (fig. 5-19). For manual operation in industrial applications, machines having 200, 30...
Arc Welding Equipment 26 May 2013 | 12:11 pm
In electric welding processes, an arc is produced between an electrode and the work piece (base metal). The arc is formed by passing a current between the electrode and the workpiece across the gap. T...
Exothermic Electrodes Oxygen Requirements 9 May 2013 | 11:44 am
Exothermic Electrodes Oxygen Requirements. Exothermic cutting consumes a large volume of oxygen; therefore, a 3/8-inch inside diameter oxygen hose is required to maintain sufficient volume. The hose s...
Underwater Cutting 3 May 2013 | 11:50 pm
One of the major tasks in underwater cutting and welding of the Salvor is the refloating of stranded vessels and the clearance of navigable harbor areas of wrecks and grounded ships. Most often this r...
Exothermic Electrodes : Trouble Shooting 23 Apr 2013 | 11:41 pm
Trouble Shooting Exothermic Electrodes. Oxy-arc, especially exothermic cutting relies on an unobstructed oxygen flow to be most effective. With inadequate oxygen flow, the rod will burn but not produc...
Underwater cutting : Oxygen Purity : Grounding the work 1 Aug 2012 | 02:43 pm
Welding TIG | MIG Welding | ARC Underwater cutting oxygen purity. The oxygen purity for all underwater oxygen cutting should be 99.5 percentor greater. As the oxygen purity is reduced, so is the cutt...
Flux-Cored Arc Welding Principles 24 Jul 2012 | 02:41 pm
Welding TIG | MIG Welding | ARC Flux-Cored Arc Welding Principles. The flux-cored welding wire, or electrode, is a hollow tube filled with a mixture of deoxidizers, fluxing agents, metal powders, and...
Aluminum (Al) 24 Jul 2012 | 02:44 am
Welding TIG | MIG Welding | ARC Aluminum is a lightweight, soft, low strength metal which can easily be cast, forged, machined, formed, and welded. It is suitable only in low temperature applications...
Electroslag Welding Aluminum 23 Jul 2012 | 02:41 pm
Welding TIG | MIG Welding | ARC Electroslag Welding Aluminum. Electroslag welding is used for joining pure aluminum, but is not successful for welding the aluminum alloys. Submerged arc welding has b...
Underwater Welding : Joint Fit-Up 22 Jul 2012 | 02:41 pm
Welding TIG | MIG Welding | ARC Underwater Welding : Joint Fit-Up Since most underwater tasks are more cumbersome than similar topside work, the proper positioning of large members or plates underwat...
