The technological parameters of the process and the design of the extrusion head for the manufacture of products such as “pipe” of polylactide composite materials by extrusion, its construction elements are calculated. Prototypes of a product made of biodegradable plastic were obtained.
The influence of talc filler, its content, as well as an additional heat treatment and temperature on the regularities of polylactide materials water-absorption has been researched. Based on the obtained data, the water diffusion coefficient in polylactide materials and the activation energy of the diffusion process were determined. It was found that the process of water absorption by the filled and heat-treated materials based on polylactide proceeds slower and requires more activation energy of the process.
Relevance of the development of high-strength glass-ceramic coatings obtained by resource-saving technology for protective elements has been established. Structure formation mechanism in magnesium aluminosilicate glasses during heat treatment has been analyzed. Selection of the system was substantiated, model glasses and glass-ceramic materials on its base have been developed. Patterns of structure regularity and formation of the phase composition of glass-ceramic materials during their ceramization have been investigated.
The influence of the filler - talc, its content, additional heat treatment and temperature on the physical-mechanical and thermophysical properties of polylactide materials, in particular on the surface hardness, heat resistance according to Vick and thermomechanical characteristics has been studied. The influence of filler and temperature on the resistance of polylactide materials to the action of the aqueous medium is revealed. The diffusion coefficient of water in polylactide materials and the activation energy of the diffusion process were determined.
In this paper the influence of technological factors on the formation of properties of finegrained concrete is shown. Rapid hardening concrete, modified with complex chemical admixtures, for prestressed precast hollow core slabs produced by continuous extrusion forming were designed.
In this article properties of raw material mixtures for making of wall wares, which contain wastes of enriching of coal, clay and hard additions – manganese ore and limestone were investigated. Also, high-quality indexes of wares and degree of fastening of Sul'furu during termoobroblennya, which was conducted in production terms for the temperatures of 950 °С were examined. Досліджено властивості сировинних сумішей для виготовлення стінних виробів, які містять відходи збагачення вугілля, глину і тверді додатки – марганцеву руду та вапняк.
Thermal processes that take place during the burning of raw mixtures at temperatures 9500С. Raw mix for making wall products contain wastes enrichment, chalk and manganese concentrate. Comparison of data obtained with theoretical information.
Досліджено термічні процеси, які проходять під час випалювання сировинних сумішей за температури 9500С. Сировинні суміші для виготовлення стінних виробів містять відходи збагачення вугілля, крейду і марганцевий концентрат. Проведено співставлення одержаних даних із теоретичними відомостями.
Вивчали сировинні суміші для виготовлення стінних виробів, які містять відходи збагачення вугілля, крейду і мангановий концентрат. Досліджено вплив лінійної швидкості газів та питомої витрати кисню на хімічні перетворення сполук Сульфуру та Карбону вугілля, які проходять під час випалювання сировинних сумішей за температури 9500С. Досягнуто ступеня зв’язування Сульфуру, достатнього для випуску виробів без доочищення викидних пічних газів. Режим підйому температури збігається з кривою випалювання стінних виробів на виробництві.