Practical Welding Today - July/August 2010

Nickel-based electrode

Select-Arc Inc. has introduced a gas-shielded, flux-cored, nickel-based electrode designed to provide corrosion resistance.

SelectAlloy 622-AP was developed to weld nickel-chromium-molybdenum to itself or to other nickel-based alloys. This electrode, composed of 21 percent chromium, 14 percent molybdenum, 5 percent iron, and 3 percent tungsten with a balance of nickel, also is used for surfacing steel and for joining nickel-based alloys to steel.

Available in a 0.045-in. diameter, the electrode is used in offshore and marine environments, chemical and power generation equipment, and petroleum refining.

Select-Arc Inc. ■ 800-341-5215, ■ www.select-arc.com

Gas analysis module

Witt offers a gas analysis module with the new Gas Control 50 digital control unit for quality assurance at plants that mix or process gas. The unit allows permanent monitoring of most common gas mixture compositions.

A smaller version of the Gas Control 100 component, the new control unit is suitable for smaller mixing plants. It also can be used for applications in explosive areas, such as where hydrogen is processed.

All variants feature intuitive controls through a multicolor touchscreen, the content of which can be configured individually and multilingually. An integrated circular buffer records all user inputs and measuring results, which can subsequently be processed on a computer.

Witt Gas Controls LP ■ 888-948-8427

■ www.wittgas.com

Digital orbital welding head

Magnatech has introduced a line of enclosed, autogenous orbital weld heads that use 100 percent digital technology. The new 800 series weld heads incorporate 100 percent digital encoder drive motors, eliminating the need for weld head calibration.

The over-close collet clamping system (patent applied for) and full-exchange water cooling system allow for 100 percent duty cycle. Five models cover tube sizes from 0.125 to 6.625 in. OD.