Modern Methods of Creating Casting Model Kits

Kalinichenko, M. L.; Долгий, Л. П.; Ровин, С. Л.; Кукареко, В. А.; Калиниченко, В. А.

doi:10.21122/1683-6065-2018-3-125-130

Cited by 4 publications

(1 citation statement)

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“…Аналіз останніх досліджень і публікацій. За вирощування проса прутоподібного (світчграсу) зменшується ерозія ґрунту, поглинання вуглецю та покращується середовище дикої природи [4], може навіть підвищитися родючість ґрунтів на місцях, які зазнали впливу ерозії, що зумовлено покращенням умови для ґрунтової мікробіоти [5], збагаченням ґрунту органічним вуглецем [6], а на малопродуктивних землях поліпшується екології довкілля, збереження й відтворення родючості ґрунту [7].…”

Section: рис1 гідротермічний коефіцієнт у вегетаційний період за роки...unclassified

Seed productivity of rod-shaped millet depends on ripeness groups of varieties

Dryha

2024

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Purpose. The article presents the results of research on the seed productivity of rod-shaped millet (PANICUMV VIRGATUM L.) depending on the maturity groups of variety samples. Methods. Laboratory, measuring and weighing, mathematical and statistical. The results. Proto-like millet - switchgrass is one of the promising perennial cereal plants for the production of biofuel, which is able to accumulate significant amounts of biomass due to photosynthesis, this crop belongs to plants with C4 type of photosynthesis. Much research has been done on the elements of biofuel crop cultivation technology, but the issue of seed productivity has not been sufficiently studied. Millet is a rod-like propagated seed, which is characterized by a high state of biological dormancy and, accordingly, low germination. It was found that the yield and germination of seeds depend both on the maturity groups of the varieties and on the sum of the active temperatures. Seed yield of mid-early and mid-late varieties was significantly higher than that of very early, late and very late varieties. The highest seed germination – 47% was obtained in 2018, where the sum of active temperatures was the highest. As the sum of active temperatures decreased, seed germination decreased. Correlation-regression analysis revealed a direct average dependence of the sum of active temperatures and seed germination, the correlation coefficient is 0.48. The greatest impact on seed quality was the factors of "year conditions" during the growing season, which was 37.3-37.6% and "variety" - 33.8-34.0%. Conclusions. It was established that the yield and quality of seeds depended on the maturity group of the varieties - in very early varieties, the yield was significantly lower, and the energy of germination and germination was significantly higher, compared to the varieties of other maturity groups.

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Section: рис1 гідротермічний коефіцієнт у вегетаційний період за роки...unclassified

Seed productivity of rod-shaped millet depends on ripeness groups of varieties

Dryha

2024

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Analysis of modern composite materials used in the manufacture of model kits for small-scale foundry production, obtained using bonding technology

2020

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The article presents modern data on the materials used to create model kits, the method of their installation for use on any foundries, specializing in the repair and creation of castings by experimental or small-scale batches. The analysis of the used materials, adhesive compositions for their fastening, as well as economic indicators of the costs necessary for their production was made. The properties of glued joints used for manufacturing components of model kits from plastics and its combinations with metal parts are shown.

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Technological features of piston casting

Садоха

2020

Litʹë metall.

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The results of studies of obtaining complex castings from aluminum alloys using the self-filling method are presented. The influence of a number of technological parameters (pouring time, chill cooling mode, the use of self-filling, etc.) on the quality of the resulting piston castings has been studied. The optimal time for filling the chill mold was determined when casting pistons. It is shown that the chill mold cooling mode has a significant impact on the quality of castings.

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Modern Methods of Creating Casting Model Kits

Cited by 4 publications

References 0 publications

Seed productivity of rod-shaped millet depends on ripeness groups of varieties

Seed productivity of rod-shaped millet depends on ripeness groups of varieties

Analysis of modern composite materials used in the manufacture of model kits for small-scale foundry production, obtained using bonding technology

Technological features of piston casting

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