Peculiarities of metal surface abrasive jet processing before coloring

The investigation results of metal surface processing before industrial painting or protective coat application are shown. A pre-coloring processing defines quality of the coating applied, its adhesion with basic metal, uniformity and strength. The processes of surface roughness formation depending on processing modes and properties of the abrasive used are considered thoroughly.

Impact of process engineering factors on stabilization of screw joint

The stabilization of screw joint and influence of factors protecting against loosening of the joint have been discussed in the present article. The results of experimental examinations associated with the impact of the type of protective coat on threaded section and lubrication on the value of tightening torque have been also presented.

The Concept of Using Model Gas Turbine for Burner Rig Corrosion Test

The paper presents a proposed application of the Gunt ET794 turbine model and subsequent tests carried out in order to determine its usability in sample testing under erosive and corrosive conditions. The most important parameter measured during the tests was temperature before the T3 turbine as well as fuel consumption (propane-butane). Following measurement taking and determining conditions, an optimum place for sample attaching was established. CATIA and Autocad software was used to elaborate the sample attachment model. It has been assumed that the tested sample had 14mm in diameter and thickness of 4mm, while the protective coat will be 500μm max. The summary presents additional research and works, whose aim would be to improve the application of the Gunt ET794 as the test stand.