Page 51 - ITAtube Journal 2/2019

Huntingdon Fusion Techniques
Oxidation Free Weld Beads
with Weld Backing TapeTM
Member News
Welders are often faced with chal- lenges where high quality stainless steel, duplex and chrome steel welds are required, but where the use of purge gas is not always pos- sible.
One solution to this problem is the use of Argweld® Weld Backing TapeTM from Huntingdon Fusion Techniques HFT®. This high tem- perature resistant glass bre tape supports weld roots and eliminates the creation of slag, while remov- ing contact with air to dramatically reduce the amount of oxidation.
Luke Keane, Technical Sales Manager for HFT® said: “Weld Backing TapeTM is a common mate- rial used for manual and automatic welding to achieve higher welding speeds and dramatically reduce the amount of post weld cleaning.
The HFT® glass bre Weld Backing TapeTM has no true melting point so it works satisfactorily with TIG or MIG welding (GTAW or GMAW) where temperatures can reach up to 6,000oC. This overcomes the concerns associated with ceramic bre versions that have a melting point of 1,800oC,
HFT® manufactures four grades of Weld Backing TapeTM for use up to 80, 160, 240 or 600 Amps.
Each tape comprises a 3” (75mm) wide aluminium adhesive tape, in the centre of which is a 1” (25mm) wide band of woven glass bre. The glass bre matting has differing thicknesses to match the welding current in use.
Backing Tape ABT PHO 17C 600 Amps
Backing Tape ABT PHO 18C Rolls 600 Amps
Once the tape is positioned with the glass bre matting under the centre of the weld joint, the welders can start their arc. The welding torch argon ow has plenty of space to move between the pores of the matting, which allows the welding arc to stabilise and start forming the weld root.
Huntingdon Fusion Techniques
Stukeley Meadow SA16 0BU Carms UK
Tel: +44 1 554 836 836 Fax: +44 1 554 836 837
hft@huntingdonfusion.com www.huntingdonfusion.com
ITAtube Journal No2/May 2019
51