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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Storage life of new torch tip
 Jiskra, Milan ; Bakeš, Martin (referee) ; Kubíček, Jaroslav (advisor)
Welding in a MIG/MAG protection atmosphere is the the most used and most widespread method for welding. This method is very extensively used. Its only limitation is in an outdoor environment while working in the field, when the effects of external influences (wind) can breach the gas containment. The containment prevents the access of air to the weld pool and a breach can lead to the formation of a poor quality welded joint with a lot of pores. An important part of the welding device is the contact tip, which energizes the welding wire by electric current. There are many types of contact tips from the cheapest to more expensive ones. The requirement is to increase the lifetime of tips to the maximum in order to minimize replacement times. An Australian company making MIGfast tips has tried to increase the lifetime by using a ceramic insulator. This tip producer claimed as much as five times longer lifetime than conventional tips. Tests carried out by us, however, showed a very negative result in comparison with commonly used conventional tips.
Detailed record
Storage life of new torch tip
 Jiskra, Milan ; Bakeš, Martin (referee) ; Kubíček, Jaroslav (advisor)
Welding in a MIG/MAG protection atmosphere is the the most used and most widespread method for welding. This method is very extensively used. Its only limitation is in an outdoor environment while working in the field, when the effects of external influences (wind) can breach the gas containment. The containment prevents the access of air to the weld pool and a breach can lead to the formation of a poor quality welded joint with a lot of pores. An important part of the welding device is the contact tip, which energizes the welding wire by electric current. There are many types of contact tips from the cheapest to more expensive ones. The requirement is to increase the lifetime of tips to the maximum in order to minimize replacement times. An Australian company making MIGfast tips has tried to increase the lifetime by using a ceramic insulator. This tip producer claimed as much as five times longer lifetime than conventional tips. Tests carried out by us, however, showed a very negative result in comparison with commonly used conventional tips.
Detailed record

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