Residual analysis - precision in surface coating

Pure Aluminium does not glide through wire feed systems and it is certainly the secret of each manufacturer to obtain a compromise between superior gliding characteristics and utmost surface purity at the same time. This is also true for MIG WELD, even though we believe to have an extraordinary useful solution to this challenge.

Naturally, mistakes that lead to surface impurities can happen in every production plant, but nonetheless poor storage or dirty wire feed systems may lead to unclean wires as well. With Aluminium this is particularly sensitive due to the problems with undefined Hydrogen in opposite to most other metals and often very critical during practical applications of welding. Therefore, we have wondered a lot how we could be able to judge about the surface cleanliness of wires quickly and at user´s sites. This has leaded us to the development of our residual analyser.

: Image of the residual analyser

Using a fast and step less adjustable inverter power source we heat the wire until shortly below the melting point. The surface impurities evaporate and are collected by a special extraction device. The quantities of the fumes are measured with an optical sensor. The measuring results are displayed graphically and numerically on a PC user interface and may be documented as required.

: User interface

The analyser is portable and can be used right at the user. If difﬁculties i.e. porosity occur we are quickly able to assess the surface impurities of wire electrodes.