Mechanical Properties of Anti-Graffiti Coating Systems used in the Railway Industry

Abstract

The paper presents comparative tests results of selected properties of anti-graffiti paint systems for rolling stock industry. The system consists of a high solid corrosion protection primer, putty, filler, basecoat and anti-graffiti clearcoat. The research was based on an anticorrosion coatings system with a transparent layer with reduced adhesion of each subsequent types of contamination. The results of the research focus on the analysis of microstructure and measurements of nanohardness and adhesion.

Quality Improvement of a Safety Valve with the Use of Numerical and Experimental Studies

“…The approach to aligning experimental research and the numerical model may be of interest for any researcher using surrogate models in his/her own practice e.g. materials science (Szczotok et al, 2018), surface machining (Gadek-Moszczak et al, 2014;Ulewicz and Selejdak, 2018;Pliszka et al, 2018), protective coatings (Radek et al, 2018), power plants (Osocha et al, 2018) or even in museum revitalization (Karpisz and Kielbus, 2019), while others use specific methods to quantify uncertainty (Pietraszek et al, 2016). The usefulness of the presented research can also be inspiring for effective university management and commercialization of these studies (Kozien and Kozien, 2017;Kozien, 2017).…”

Quality Improvement of a Gear Transmission by Means of Genetic Algorithm

“…Stochastic optimization, especially with quick convergence, may be very powerful tool in those situations, where constraints are vague, optimization criterion is defined by a recipe, not a math formulation, and the dimensionality of the decision space is very large. It may a typical management problem (Kozien and Kozien, 2017;Kielbus and Karpisz, 2019), but also a research investigation (Radek et al, 2014;Augustyn and Kozien, 2014;Opydo et al, 2016;Szczotok et al, 2018) or development (Karpisz and Kielbus, 2018;Pacana and Pacana, 2018;Radek et al, 2018) with many factors. This approach can be particularly useful in numerical experiments when the object under study is a mathematical model with high complexity.…”

Fire Properties of Intumescent Coating Systems for the Rolling Stock

“…The gases were: CO 2 , CO HF, HCl, HBr, HCN, SO 2 , NO x (NOx as the sum of NO and NO 2 ). Conventional Index of Toxicity for generic products CIT G is calculated according to Equation (2).…”

“…These requirements include: adhesion, abrasion resistance, hardness, chemical resistance, resistance to weather conditions (humidity, UV, corrosion). Coating systems intended for the rolling stock in addition to the above-mentioned requirements, as well as ease of application, must also have adequate fire performance [1][2][3]. Strong emphasis on safety in railway transport caused intensive development of requirements and methods in this area and as a consequence contributed to development of materials and products.…”