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Production of pyrolytic carbon from waste of rubber-containing products for use in foundry 用含橡胶废料生产用于铸造的热解碳
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-25-30
A. S. Panasyugin, V. Niss, N. P. Masherova
{"title":"Production of pyrolytic carbon from waste of rubber-containing products for use in foundry","authors":"A. S. Panasyugin, V. Niss, N. P. Masherova","doi":"10.21122/1683-6065-2023-2-25-30","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-25-30","url":null,"abstract":"The paper deals with the processing of rubber‑containing products by pyrolysis in order to obtain pyrolytic carbon, which is of practical interest for the needs of the foundry. It has been established that the process of gas phase evolution during rubber pyrolysis proceeds in the temperature range of 50–550 °C, the maximum release peaks for all detected substances are in the range of 375–500 °C, the total release is over 140 mg per kg of feedstock. It was found that the concentration and temperature of the exhaust gases make it possible to neutralize them in an autocatalytic mode using the principle of filtration combustion. It is shown that the optimal temperature for obtaining a solid carbonaceous residue (target product) is 320–380 °C, an increase in temperature above 500 °C leads to a decrease in the mass fraction of pyrolytic carbon from 64.8 to 31.9 %, respectively, the proportion of exhaust gases increases from 5 to 8 %, and heating oil yield from 30.2 to 60.1 %.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116845529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changing the surface of the 07C11-KV mixed fabric modified by carbon and zirconium clusters, during climate tests 在气候试验中，改变碳和锆簇改性07C11-KV混合织物的表面
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-94-99
A. Anisovich, M. I. Markevich, I. Akula, N. Chekan, E. N. Shcherbakova, E. V. Kevra
{"title":"Changing the surface of the 07C11-KV mixed fabric modified by carbon and zirconium clusters, during climate tests","authors":"A. Anisovich, M. I. Markevich, I. Akula, N. Chekan, E. N. Shcherbakova, E. V. Kevra","doi":"10.21122/1683-6065-2023-2-94-99","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-94-99","url":null,"abstract":"The technology of modification of textile mixed materials using carbon and zirconium targets has been developed. A change in the structure of a composite material based on a 07C11‑KV mixed fabric (produced by Mogotex OJSC) modified with carbon and zirconium clusters after exposure at low temperatures (up to ‑40 °C) in a climatic chamber was investigated. It is shown that at temperatures ‑20 – ‑30 °C, the material is de‑fibrous. At ‑40 °C, there is no de‑fibering, fiber straightening is observed. The continuity of the coating is maintained for all test variants.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132835277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of mechanical properties of glued elements for model kits 模型套件用胶合元件的机械性能评价
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-100-106
M. L. Kalinichenko, B. M. Nemenenok, A. Grigorchik
{"title":"Evaluation of mechanical properties of glued elements for model kits","authors":"M. L. Kalinichenko, B. M. Nemenenok, A. Grigorchik","doi":"10.21122/1683-6065-2023-2-100-106","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-100-106","url":null,"abstract":"The work is devoted to assessing the quality of fastening the abrasive component to the metal base by gluing on the example of a clutch disc. An assessment of the operability of the patented technique for testing for conditional shear of glued joints is given. The paper proposes a method of using foamed materials to create one‑time or single model kits for the production of missing parts for mechanical engineering.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122246400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The main directions of national metallurgy development in the context of global trends 在全球趋势的背景下，提出了我国冶金发展的主要方向
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-31-44
N. I. Anelkin, A. V. Mantsevich, D. G. Voitekhovsky, S. A. Mozgov
{"title":"The main directions of national metallurgy development in the context of global trends","authors":"N. I. Anelkin, A. V. Mantsevich, D. G. Voitekhovsky, S. A. Mozgov","doi":"10.21122/1683-6065-2023-2-31-44","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-31-44","url":null,"abstract":"We are witnessing how today the world is facing new challenges and new revolutionary trends in terms of further technological development and the formation of a new sixth technological order that challenges established and commercially available technologies. The increasing complexity, breadth, depth and speed of change, volatile markets and breakthrough technologies require new thinking, readiness for change, and time forces us to move faster.The article contains an overview of global trends in industrial development, advanced technological trends and technologies for the development of domestic metallurgy, carried out in the period 2019–2022, based on the following materials: Internet resources of the world’s leading manufacturers and suppliers of technology and equipment in metallurgy; the Strategy “science and technology: 2018–2040”; the Concept of the National Strategy for Sustainable Development of the Republic of Belarus on the period up to 2035; the National Strategy for Sustainable Socio‑Economic Development of the Republic of Belarus for the period up to 2030; Programs of socio‑economic development of the Republic of Belarus for the period 2021–2025; Priority areas of scientific, scientific, technical and innovative activities for 2021–2025; the Eurasian Economic Union; the International Conference “Designing the Future. Problems of digital reality”; Significant events in the Republic of Belarus in 2021–2022 on the development of industry.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132011214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A study of the workers’ working conditions in areas of the manufacture castings from copper alloys 铜合金铸件生产车间工人劳动条件的研究
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-125-128
A. М. Lazarenkov, I. A. Ivanov, M. A. Sadokha
{"title":"A study of the workers’ working conditions in areas of the manufacture castings from copper alloys","authors":"A. М. Lazarenkov, I. A. Ivanov, M. A. Sadokha","doi":"10.21122/1683-6065-2023-2-125-128","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-125-128","url":null,"abstract":"The results of the study of workers working conditions at the areas of the manufacture of castings from copper alloys are presented. It is noted that the main production factors of working conditions are noise, vibration, dustiness, gas contamination, temperature, intensity of infrared (thermal) radiation, severity and labor process intensity. The results have shown that at all workplaces there are exceedances of permissible values for noise and local vibration, the content of dust and harmful substances in the air of the working environment, the intensity of infrared (thermal) radiation and temperature. It is noted that the work performed due to the severity and labor process intensity can negatively affect the workers’ health.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130844012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of factors of the production environment on workers in the foundry 生产环境因素对铸造工人的影响
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-129-135
A. М. Lazarenkov, I. A. Ivanov, M. A. Sadokha
{"title":"The impact of factors of the production environment on workers in the foundry","authors":"A. М. Lazarenkov, I. A. Ivanov, M. A. Sadokha","doi":"10.21122/1683-6065-2023-2-129-135","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-129-135","url":null,"abstract":"The production factors of working conditions at the workplaces of foundry workers are considered, the actual values of the parameters under consideration and their impact on the body of workers are given. The most common among foundry workers are diseases from exposure to dust (silicosis and dust bronchitis), vibration (vibration disease), and noise (sensor neural hearing loss). When assessing the working conditions of workers in foundries, it is necessary to take into account the impact of a complex of factors of the production environment, the technological processes and equipment used, the duration of stay working in the zone of factors.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115400053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystallization features of casting alloys 铸造合金的结晶特征
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-08-09 DOI: 10.21122/1683-6065-2023-2-21-24
E. I. Marukovich, V. Stetsenko, A. Stetsenko
{"title":"Crystallization features of casting alloys","authors":"E. I. Marukovich, V. Stetsenko, A. Stetsenko","doi":"10.21122/1683-6065-2023-2-21-24","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-2-21-24","url":null,"abstract":"It has been shown that elementary crystal lattices of basic phases and oxides of casting alloys do not satisfy the principle of structural and dimensional correspondence. Formation of crystallization centers during solidification of casting alloys is a nanostructured process. The main demodifying element in melt crystallization is adsorbed hydrogen. It prevents the integration of nanocrystals into the nucleus of crystallization of the main phases of casting alloys. When the melt overheats, adsorption and desorption of hydrogen atoms occur. The predominance of one of these processes explains the features of crystallization of cast‑ ingalloys. Prior to critical superheating of the melt, the adsorption of hydrogen atoms prevails. As a result, molds with an unmodified structure are formed. When the melt overheats above the critical one, the process of desorption of hydrogen atoms prevails. As a result, molds with a modified structure are formed.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124852091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Philosophical aspect of the basis of the theory aerodynamic sound hardening 哲学方面的理论基础是气动声硬化
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-148-148
D. Karabanov
{"title":"Philosophical aspect of the basis of the theory aerodynamic sound hardening","authors":"D. Karabanov","doi":"10.21122/1683-6065-2023-1-148-148","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-148-148","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131678782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Investigation of localization of plastic deformation during stretching of lowcarbon steel 低碳钢拉伸塑性变形局部化研究
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-81-87
V. P. Fetisov
{"title":"Investigation of localization of plastic deformation during stretching of lowcarbon steel","authors":"V. P. Fetisov","doi":"10.21122/1683-6065-2023-1-81-87","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-81-87","url":null,"abstract":"The relationship between the localization of plastic deformation in the initial stage of deformation and in the final stage during the development of the neck is established. The role of the intensity of deformation hardening in the area of local deformation on the formation of the magnitude of relative constriction is determined.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126772991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research and processing of shot blasting dust 抛丸粉尘的研究与处理
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-73-78
S. Rovin, D. I. Kurach, S. Grigoriev
{"title":"Research and processing of shot blasting dust","authors":"S. Rovin, D. I. Kurach, S. Grigoriev","doi":"10.21122/1683-6065-2023-1-73-78","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-73-78","url":null,"abstract":"Dispersed iron‑containing waste makes up the majority of solid technological waste of machine‑building and metallurgical enterprises. The problem of their disposal remains open, which leads to significant economic losses and creates a serious environmental threat. About 15–20 % of these wastes are assirative dusts of melting units. The content of compounds of various metals, and primarily iron, in some of them (for example, in the aspiration dust of arc steelmaking furnaces) reaches 60–70 % or more. However, today, despite all efforts, no more than 5–7 % of the captured aspiration dust of melting furnaces is used. One of the most significant problems of its disposal is the high dispersion (the size of the dust particles of arc furnaces, as a rule, does not exceed 50 microns) and the extreme heterogeneity and instability of the granulometric and chemical composition of the dust. Therefore, in most cases, attempts to use these dusts as a technological product: additives in molding and exothermic mixtures or non‑stick paints, coloring pigment in the production of building materials, modifying additives in the melting of foundry alloys, additives in the production of cement clinker, etc., ended at the level of experimental or pilot batches and were not essential for solving problems in general. The most promising direction of utilization of aspiration dusts is the recycling of metals contained in them. This article presents the results of studies of the composition and characteristics of aspiration dust of arc steelmaking furnaces of foundries of machine‑building plants, as well as the conditions of solid‑phase reduction and extraction of iron contained in it.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126899345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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