Saturday, April 5, 2008

What is Film Artefacts?

Film artefacts are images form during radiography and film processing which are not a defect or a change in component thickness.

Example of film artefacts are;

Crimp Marks
Drying Marks
Diffraction Mottling
Dirty Intensifying Screens
Static Marks
Chemical Splashes
Water splashes

Causes of Weld Spatters

The following are some of the causes of weld spatters.

1.) Current is excessive
2.) The electrode is damp
3.) Contamination
4.) Arc blow