Разработка эффективной технологии производства антифрикционноизносостойких композиционных материалов и колковых деталей из них

Аннотация

of dissertation sent out on “____” ______________ 2017 y. (mailing report No. ____on “____” ____________ 2017 y.). S.S. Negmatov Chairman of the scientific council awarding scientific degrees, doctor of technical sciences, professor M.G. Babaxanova Scientific secretary of the scientific council awarding scientific degrees, candidate of chemcal sciences, s.r.a. N. Tolipov Chairman of the academic seminar under the scientific council awarding scientific degrees, candidate of technical sciences, s.r.a 38 INTRODUCTION (abstract of PhD thesis) The aim of the research work the aim of the research work is to work out the technology of getting details on the basis of the content of anti-frictional composite wood-polymeric materials for machine-building from the local raw materials. The object of the research work the object of the research work are the local of wood-poplar and a willow, and also their wastes in a wood-working industry, thermoplastic polymers - polyethylene of high density (HDPE) I-0754, density 0,954 g/sm3, polypropylene brands 05P10/020, fillers - smut, graphite and motor oil of brand М8. Scientific novelty of the research work. The scientific novelty of the study consists of the following items: change of physic mechanical properties of compositions from the content and type of thermoplastic polymers, carbon graphite fillers and various additives and also level of consolidation of wood by the modified polymeric compositions are elicited; composition wood-polymeric materials on the basis of local wood - a poplar, willow and the modified polymers and production engineering of their reception by a preliminary dispersion mineral carbon graphite fillers are developed; on the basis of complex researches on study influence carbon graphite fillers on physic mechanical and anti-frictional properties of thermoplastic polymers the optimal maintenance of fillers providing creation of is antifriction wear proof composition wood-polymeric materials for machine-building are elicited; by researches of UR-spectroscopy and microscopic structure of composition wood-polymeric materials it is proved that, the densely-grown together structure of all components of a composition wood-polymeric material, which is formed because of the chemical bond of corpuscles polyethylene and initial ingredients is observed; as a result of studying of physic mechanical and anti-frictional properties of the developed composition wood-polymeric materials on the basis of local wood and the inoculated polymers it is installed that composition of wood-polymeric materials possess high toughness characteristics, low coefficient of friction, high wear proof and the raised reliability while in service in various environmental conditions of Uzbekistan; influence of technological and operational factors on properties of composition wood-polymeric materials are installed, also concrete recommendations for intelligent use of these potential opportunities of the materials in knots of a friction of tools of cotton machines and the mechanisms working in the conditions of a high dustiness of the environment is developed. Implementation of the research results based on the results of research on the development of composite polymeric materials on the basis of local raw materials achieved the following: patents for content of antifriction-wear proof polymeric composition was received a patent by the Agency of Intellectual Property of the Republic of 39 Uzbekistan for the opening (№IAP 05000, 2015). As a result there is an opportunity to rise the capability and efficiency of cotton-refining machines and mechanisms; to the content of anti-frictional wood-polymeric composite material was received a patent by the Agency of Intellectual Property of the Republic of Uzbekistan for the opening (№ IAP 05068, 2015). This allowed to adjust the manufacture of materials and to carry out to produce sliding bearings in knots of a friction of tools of cotton machines and mechanisms instead of rolling bearings; worked out sliding bearings from ACWPM are implemented to the plants holding «O’ZPAHTASANOATEXPORT» (certificate on October 6, 2016 y. № МА i/1324 the holding «O’ZPAHTASANOATEXPORT»). In the result, allows to increase the resource of operation sliding bearings of cotton-refining machines two times. The structure and volume of the thesis. The structure of the dissertation consists of an introduction, four chapters, conclusion, the list of references, applications. The volume of the dissertation is 120 pages. 40 ЭЪЛОН ҚИЛИНГАН ИШЛАР РЎЙХАТИ СПИСОК ОПУБЛИКОВАННЫХ РАБОТ LIST OF PULISHED WORKS I бўлим (I часть; I part) 1. Шернаев А.Н., Пулатов Ж.А., Гулямов Г., Негматов С.С. К вопросу разработки теплостойких композиционных древесно-полимерных материа лов для узлов трения машин и механизмов // Композиционные материалы. – Ташкент, 2009. - №1. -С.78-79. (02.00.00; № 4) 2. Шернаев А.Н., Мусабеков Д.Х., Гулямов Г., Абед-Негматова Н.С. Прочность композиционных древесно-поли