Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"plastics processing"”.
-
Laserschweißen von Kunststoffen in der Mikrotechnik
… and more micro technology attaches importance in plastics processing. This document represents fundamental investigations of plastics laser welding in micro technology. Requirements of such a laser welding process are for example welding accuracy of nearly one micron or minimisation of lateral …
-
An expert system for the development of a health and safety policy/risk assessment in the plastics industry
… policies have been found, in a large number of plastics processing companies (particularly small companies), to be poorly prepared, inadequately implemented and monitored. An important cause of these inadequacies is the lack of necessary health and safety knowledge and expertise to prepare, …
-
Ermittlung von Materialkennwerten von Kunststoffschüttgütern und Simulation der Vorgänge im Einzugsbereich von konventionellen Einschneckenextrudern
… for the design of single-screw extruders for plastics processing and have the advantage of saving not only time and personnel, but are also economical. In order to obtain simulation results for the feed section of single-screw extruders with a good accuracy, not only the friction coefficients …
-
Measuring performance in supply chain networks
… small and medium-sized companies in the German plastics processing industry is studied. By using real-time enterprise data of 15 focal companies, their network flows of revenues and expenses are merged to create a supply chain network of 448 companies which is then analysed. Social network …
-
Dreidimensionale Simulation und Visualisierung von Strömungs- und Mischprozessen im Doppelschneckenextruder
… rate of deformation. The differences between the processing behaviour of PES/glass- and PP/metal-blends are causally determined by the difference of the particle diameters before the mixing zone and the different viscosity ratios of the blends. Furthermore a new visualisation method for simulation …
-
Reducing cycle times in rotational moulding of plastics: a theoretical and experimental analysis
… is one of the fastest growing sectors of the plastics processing industry today. Yet, in spite of the advantages which it has to offer in terms of the economic production of quite complex, stress-free articles, its competitiveness and widespread growth is still hampered by long production …
-
Interactions of Trace Metals with Plastic Production Pellets in the Marine Environment
… (beached) and those obtained directly from a plastics processing facility (virgin) were also identified. Adsorption maxima for virgin pellets ranged from < 1 ng g-1 (Cd) to 300 ng g-1 (Cr) with corresponding, respective Langmuir constants of 0.413 and 0.127 mL g-1. Adsorption of trace metals …