Patent ID: 6253780
Filing Date: 2001-07-03
Classification: B01F,Y10T

Abstract:
A method for preparing a welding fluid at the welding site, said welding fluid defined by a mixture of at lest two components, these being present in said mixture in metered percentages, which have to be maintained to allow adequate welding, said method comprising the following steps:withdrawing the mixture components from respective sources located at the welding site and feeding them to a mixture zone (18) located at the welding site at substantially identical pressures;monitoring the composition of the formed mixture at the welding site to check whether its components are present in desired percentages;if the composition is correct, feeding the hence formed mixture to a containing means (2) in which the mixture is stored at the welding site under pressure;selectively feeding said mixture to a user locating at the welding site; andselecting the qualitative composition of the welding fluid from the group consisting of:Ar+He,Ar+CO.sub.2,Ar+He+CO.sub.2,Ar+O.sub.2 +CO.sub.2.