Inlägg taggade med welding machine

Why do you want to read this article?

You want to read this, because 6G code certified pipe welders are making up to $12,000 a month, right now. A few years ago, the federal government predicted a 250,000 shortage of welders by now. Some of that has been filled by immigration. Some of that went away with the recession. However, things are now going the other way for pipe welders - demand is rising.

We have about five times the Saudi Arabian reserves in the ground. We now have the technology to get it out of the ground. Adding to that, Canada wants to ship us oil down an approved pipeline to Texas that will be built in 2012.

Getting our oil extracted, and the pipeline built are just two projects which require [...]

This process is called by many names and it basically is a welding process that uses an arc to heat metal that needs to be joined. The welder uses a continuous feed filler metal (a consumable) electrode and this is used on the work-piece. This type of welding also must use a shielding that is provided by a gas or a mixture of gasses.

This type of pipe welding machine manufacturers are also called short circuit transfer. In the MIG process, when the wire actually touches the metal to be connected, it lets go of the metal that does the welding. This makes sure that metal doesn't transfer across an arc so there is no puddling.

Also known as gas metal arc welding, the MIG(GMAW) process uses a metal gun to provide [...]

Once a stable arc with proper thermal equilibrium has been established, it is essential to maintain it so that welds of consistent quality can be achieved. Normally, it is not difficult to re-ignite a stable arc, if it goes off momentarily. Whereas thousands of volts may be required to initiate an arc in TIG welding machine (gas tungsten arc welding), it may require only tens or at the most hundreds of volts to reignite it.

Maintenance of an arc when ppr pipe cutter with an ac power source is rather a problem because the arc extinguishes every half cycle when the current is zero, that is, it will extinguish 100 times a second with a normal 50 hertz mains supply. For re-ignition the required voltage must be available at the time [...]