Search academic texts

Information × Registration Number 0210U003508, 0106U012541 , R & D reports Title The aim of the work is development of scientific foundations of technologies of welding of thermoplastic composite materials on the base of natural and polymeric fibers, development of technologies of internal thermoresister welding of pipes made from sewed polyethylene popup.stage_title Head Nesterenko Nikolay Petrovich, Доктор технічних наук Registration Date 08-02-2010 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 Part 1 Common patterns of the TCM vibro-heating are identified taking into account the structural transformations and properties of polymers depending on temperature and frequency of loading, general and simplified models of thermo-mechanical processes during the synthetic non-wovens UV welding are developed. The critical conditions of the vibro-heating were found. An evaluation of critical parameters at which the productivity of the UV welding process increases tenfold was done. The interrelation was found between the relaxation state of the polymer in the welding zone and the nature of changes in the power consumption of an acoustic unit. The influence of the basic of welding parameters on the morphology and strength of joints was found and the technology of the UV welding for synthetic non-wovens and articles made of them, including respirators "Acacia", "Petal", "Sprout" etc is developed. Part2. The mechanism of formation of compounds between crosslinked polyethylene (PE-X) and polyethylene PE-80 pipes welded using the internal termo-rezistor welding technique was done. A construction of the outer reinforcing sleeve was designed and ways of its reinforcement are identified. The technology PE-X pipes welding was designed Product Description popup.authors Єсауленко Галина Борисівна Безрук Леонід Іванович Гохфельд Володимир Леонідович Кондратенко Володимир Юрійович Кораб Микола Георгійович Кузнечикова Ірина Володимирівна Мінєєв Едуард Олексійович Менжерес Марина Григорівна Червінко Ольга Петрівна Шестопал Анатолій Миколайович popup.nrat_date 2020-04-02 Close