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The practice of using chill vents in construction injection molding forms 在建筑注塑模具中使用冷风口的做法
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-17-22
V. I. Chechukha, M. A. Sadokha, S. V. Kareniuhin
{"title":"The practice of using chill vents in construction injection molding forms","authors":"V. I. Chechukha, M. A. Sadokha, S. V. Kareniuhin","doi":"10.21122/1683-6065-2024-2-17-22","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-17-22","url":null,"abstract":"Options for improving the quality of castings during injection molding are considered. The variants of the design and placement of the chill vents in the mold are presented. The practical experience of using chill vents in order to improve the ventilation system of the mold to ensure a reduction in the defect of the gas sink molds and porosity is described.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"63 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141358465","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 mechanism of recrystallization of binary aluminum and tin bronzes 二元铝锡青铜的再结晶机理
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-36-39
E. I. Marukovich, V. Stetsenko, A. Stetsenko
{"title":"The mechanism of recrystallization of binary aluminum and tin bronzes","authors":"E. I. Marukovich, V. Stetsenko, A. Stetsenko","doi":"10.21122/1683-6065-2024-2-36-39","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-36-39","url":null,"abstract":"A nanostructural mechanism for recrystallization of binary aluminum and tin bronzes has been developed. First, structure-forming nanocrystals of α-phases, β-phases and γ-phases are formed from elementary nanocrystals of copper, aluminum, tin and their free atoms. The crystallization centers of microcrystals of phases are formed from them. From these centers, structure-forming nanocrystals of phases, free atoms of copper, aluminum, tin, microcrystals of α-phases, β-phases and γ-phases of binary aluminum and tin bronzes are formed.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141360053","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
Investigation of microstructure and mechanical properties of 45KH2NMFBA steel samples after thermal exposure 热暴露后 45KH2NMFBA 钢样品微观结构和机械性能的研究
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-88-95
A. Y. Izobello, A. V. Basalay, E. G. Bilenko, V. V. Petrenko, V. V. Apishev
{"title":"Investigation of microstructure and mechanical properties of 45KH2NMFBA steel samples after thermal exposure","authors":"A. Y. Izobello, A. V. Basalay, E. G. Bilenko, V. V. Petrenko, V. V. Apishev","doi":"10.21122/1683-6065-2024-2-88-95","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-88-95","url":null,"abstract":"The analysis of the structure of ballistic materials was carried out and the optimal mechanical properties necessary to ensure the best bullet resistance and durability of armored steel were selected. A study of 45X2NMFBA armor steel was carried out under various heat treatment modes. The optimal modes of heat treatment have been determined to ensure an increase in mechanical properties. It was found that with an increase in the cooling rate of steel, a finer‑grained structure is formed, and an increase in the quenching temperature leads to an increase in the grain of primary austenite. The results of optical microscopy and mechanical properties of the studied steel samples are presented","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"10 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355874","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
Sprecific of distribution of chemical elements in graphite inclusions in as‑cast and deformed ductile cast iron 铸态和变形球墨铸铁中石墨夹杂物化学元素的特殊分布
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-106-116
A. I. Pokrovsky, S. V. Grigor’ev
{"title":"Sprecific of distribution of chemical elements in graphite inclusions in as‑cast and deformed ductile cast iron","authors":"A. I. Pokrovsky, S. V. Grigor’ev","doi":"10.21122/1683-6065-2024-2-106-116","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-106-116","url":null,"abstract":"","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"33 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355453","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
Improving the technology of producing seamless hot‑rolled pipes from stainless steel l80 type 13Cr in the tube rolling workshop 在轧管车间改进用 l80 型 13Cr 不锈钢生产无缝热轧管的技术
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-40-43
A. V. Strelchenko, S. V. Avdeev, A. V. Shcheglov, O. I. Kom, V. I. Yakush
{"title":"Improving the technology of producing seamless hot‑rolled pipes from stainless steel l80 type 13Cr in the tube rolling workshop","authors":"A. V. Strelchenko, S. V. Avdeev, A. V. Shcheglov, O. I. Kom, V. I. Yakush","doi":"10.21122/1683-6065-2024-2-40-43","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-40-43","url":null,"abstract":"The production of seamless hot‑deformed pipes from martensitic stainless steel with a high chromium content, used under the constant influence of aggressive environments, involves overcoming a series of technological challenges. These challenges are due to the metal’s structural features, such as relatively low plasticity, a narrow temperature range for hot deformation, a tendency to defect formation during rolling, and more intense wear on the rolling tools. The article discusses the main stages of research work on mastering the technology of producing seamless hot‑rolled pipes from stainless steel grade L80 type 13Cr at OJSC “BSW – Management Company of Holding “BMC”. It presents the results and complexities of mastering the technology for producing seamless stainless steel pipes, analyzes the results aimed at reducing the cost of finished products by increasing the durability of piercing mandrels, the resistance of disc saws for cutting blanks, eliminating metal adhesion to the piercing mill’s Dishar discs, increasing the productivity of the rolling line and heat treatment process.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"18 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141357437","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
Investigation of low temperature effects on the surface of TI–C composite material – textile blend TI-C 复合材料--纺织品混合物表面的低温效应研究
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2024-06-11 DOI: 10.21122/1683-6065-2024-2-82-87
A. Anisovich, M. Markevich, I. Akula, N. Chekan, E. N. Shcherbakova
{"title":"Investigation of low temperature effects on the surface of TI–C composite material – textile blend","authors":"A. Anisovich, M. Markevich, I. Akula, N. Chekan, E. N. Shcherbakova","doi":"10.21122/1683-6065-2024-2-82-87","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-2-82-87","url":null,"abstract":"A method for the formation of a composite material is demonstrated, which involves applying titanium to one side of the textile blend 07S11‑KV (produced by OJSC “Mogotex”) and carbon to the other side of the fabric. Tests were conducted on the obtained material in a climatic chamber at temperatures ranging from –20 °C to –40 °C. It is shown that the developed composite material withstands low temperatures well, with no additional deformation of the composite material or structural defects observed. This composite material can be considered as promising for special applications in low‑temperature conditions (antistatic, microwave absorbing, biomedical).","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"86 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141359693","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
Working conditions of agricultural workers on mixing plant areas of foundry shops 铸造车间混合设备区农业工人的工作条件
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-12-15 DOI: 10.21122/1683-6065-2023-4-122-126
A. М. Lazarenkov, M. A. Sadokha
{"title":"Working conditions of agricultural workers on mixing plant areas of foundry shops","authors":"A. М. Lazarenkov, M. A. Sadokha","doi":"10.21122/1683-6065-2023-4-122-126","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-4-122-126","url":null,"abstract":"The working conditions of agricultural workers on mixing plant areas are examined, including the production factors that determine these conditions. The results of research on the parameters of the working conditions for agricultural workers are compared with the regulatory values. It has been established that a comprehensive assessment of the working conditions of agricultural workers should take into account the duration of exposure to the working equipment, the equipment and manual tools used, and the nature of the production.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"31 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995966","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
Criteria for evaluating the effectiveness of bentonites in the production of custom castings 评估膨润土在定制铸件生产中的有效性的标准
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-12-15 DOI: 10.21122/1683-6065-2023-4-43-47
S. A. Kulikov, F. I. Rudnitsky, V. A. Shumigay
{"title":"Criteria for evaluating the effectiveness of bentonites in the production of custom castings","authors":"S. A. Kulikov, F. I. Rudnitsky, V. A. Shumigay","doi":"10.21122/1683-6065-2023-4-43-47","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-4-43-47","url":null,"abstract":"The article analyzes the characteristics of bentonites used in the foundry industry of the Republic of Belarus. It is concluded that GOST 28177‑89 allows one to effectively assess the quality of bentonites depending on production conditions. It has been shown, that the wet tensile strength is the most important characteristic of bentonites.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139000332","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
Increasing the efficiency of microalloying steel with boron‑containing alloys 用含硼合金提高微合金化钢的效率
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-12-15 DOI: 10.21122/1683-6065-2023-4-66-71
G. Abesadze, B. M. Nemenenok, G. A. Rumiantseva, Ya. L. Miakinnik, A. W. Kowalkov
{"title":"Increasing the efficiency of microalloying steel with boron‑containing alloys","authors":"G. Abesadze, B. M. Nemenenok, G. A. Rumiantseva, Ya. L. Miakinnik, A. W. Kowalkov","doi":"10.21122/1683-6065-2023-4-66-71","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-4-66-71","url":null,"abstract":"Compositions for microalloying steel with boron are presented, its positive effect on the process of steel crystallization, increasing strength and toughness is shown. The feasibility of using boron‑containing ferroalloys with low boron concentrations is substantiated. The need to use complex boron‑containing alloys to neutralize nitrogen and oxygen is noted. An example of a complex alloy based on ferrosilicon and ferromanganese with boron additives, obtained using datolite concentrate, is given.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"238 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997109","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
Employees’ working conditions on molding areas of foundry shops 铸造车间成型区员工的工作条件
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-12-15 DOI: 10.21122/1683-6065-2023-4-109-116
A. М. Lazarenkov, M. A. Sadokha
{"title":"Employees’ working conditions on molding areas of foundry shops","authors":"A. М. Lazarenkov, M. A. Sadokha","doi":"10.21122/1683-6065-2023-4-109-116","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-4-109-116","url":null,"abstract":"The results of a comprehensive assessment of working conditions on molding areas are presented, and the production factors that determine these conditions are identified. The working conditions of key professions in foundry casting are examined in comparison with regulatory values. It has been established that a comprehensive assessment of working conditions for employees on molding areas of foundry shops should take into account the equipment and manual tools used, the duration of exposure to the working equipment, the type of alloy being melted, and the nature of the production.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"125 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138998379","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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