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Influence of various thermal conditions on the composition of high‑temperature diffusion oxides (satellite inclusions) in solid steel 不同热条件对实体钢中高温扩散氧化物(卫星夹杂物)组成的影响
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-62-67
T. I. Sidorenko, E. V. Ermachenok, Y. S. Belash
{"title":"Influence of various thermal conditions on the composition of high‑temperature diffusion oxides (satellite inclusions) in solid steel","authors":"T. I. Sidorenko, E. V. Ermachenok, Y. S. Belash","doi":"10.21122/1683-6065-2023-1-62-67","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-62-67","url":null,"abstract":"The main goal of any modern production of long products is to ensure the required quality of finished products. One of the important quality indicators, along with mechanical and technological properties, is the quality of the rolled metal surface. The article presents the results of experimental studies of the composition of high‑temperature diffusion oxides formed on the surface of artificially deposited defects under various conditions of temperature exposure using the microrentgenospectral method on a scanning electron microscope with an energy dispersive microanalyzer. The characteristic features in terms of the percentage and presence of certain chemical elements in the scale of various steel grades have been established.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"27 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":"117209971","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
Features and practical experience in obtaining complex profile castings from aluminum alloys 从铝合金中获得复杂型材铸件的特点和实践经验
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-41-46
M. A. Sadokha, A. V. Kryutsou
{"title":"Features and practical experience in obtaining complex profile castings from aluminum alloys","authors":"M. A. Sadokha, A. V. Kryutsou","doi":"10.21122/1683-6065-2023-1-41-46","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-41-46","url":null,"abstract":"Variants of preparation of production of castings from aluminum alloys in conditions of single and small‑scale production are considered. It is established that in order to reduce the time and cost of obtaining castings, it is most expedient to carry out end‑to‑end design and manufacture of technological equipment using additive technologies and casting in sand‑resin molds obtained using the “no‑bake” technology.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"286 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":"116111448","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
Technical features of controlled cooling of circular workpieces after ring rolling 轧环后圆件控制冷却的技术特点
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-106-111
V. Antonyuk, S. G. Sandomirski, V. Yavorski
{"title":"Technical features of controlled cooling of circular workpieces after ring rolling","authors":"V. Antonyuk, S. G. Sandomirski, V. Yavorski","doi":"10.21122/1683-6065-2023-1-106-111","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-106-111","url":null,"abstract":"The analysis of the ring rolling machine capabilities in providing increased accuracy of ring blanks is performed. The necessity of operator’s participation in controlling the ring rolling machine to achieve the required accuracy even with full automation of the ring blanks manufacturing process is noted. The necessity of controlling the process of cooling of circular blanks after the circular rolling machine to ensure increased accuracy of the circular blanks has been noted. To eliminate the ovality of low rigidity ring blanks after the circular rolling mill it is proposed to use the technology of their controlled cooling and stabilization. The sequence of thermal strain control of the ring blanks during cooling to preserve the achieved accuracy of the “hot” ring after the ring rolling on the “cold” ring after cooling has been developed. The proposed recommendations are intended for the development of technological support for automated ring rolling complex at OJSC “BELAZ”.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"30 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":"134116746","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
Artifacts in metallography: etching pits 金相学中的人工制品:蚀刻坑
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-112-117
A. Anisovich
{"title":"Artifacts in metallography: etching pits","authors":"A. Anisovich","doi":"10.21122/1683-6065-2023-1-112-117","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-112-117","url":null,"abstract":"The article considers etch pits that appear in metals and alloys during metallographic etching as an artifact. The optical contrasting tools capabilities, such as dark field, polarized light, and differential interference contrast in detecting etch pits, are demonstrated.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"33 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":"123123464","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
Influence of the method of aerodynamic sound hardening on the hardness of cast iron 气动声硬化方法对铸铁硬度的影响
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-146-147
A. O. Ulitenok
{"title":"Influence of the method of aerodynamic sound hardening on the hardness of cast iron","authors":"A. O. Ulitenok","doi":"10.21122/1683-6065-2023-1-146-147","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-146-147","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"117 3 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":"122189443","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
Comprehensive study of characteristic signs of defects detected during magnetic powder control at the final stage of production of seamless hot‑rolled pipes 对无缝热轧管生产最后阶段磁粉控制过程中检测到的缺陷特征进行了综合研究
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-69-72
E. A. Naumenko, O. Rozhkova, I. A. Kovaleva
{"title":"Comprehensive study of characteristic signs of defects detected during magnetic powder control at the final stage of production of seamless hot‑rolled pipes","authors":"E. A. Naumenko, O. Rozhkova, I. A. Kovaleva","doi":"10.21122/1683-6065-2023-1-69-72","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-69-72","url":null,"abstract":"Defects on the outer surface of seamless hot‑rolled steel pipes are formed both as a result of the defects’ transformation in the surface and macrostructure of the initial workpiece, and due to non‑compliance with the rolling technology. Timely detection of defects and elimination of the causes of their formation, allows you to get high‑quality products with high operational reliability. Detection of violations of technology, control of the technological process, carrying out metallographic studies allow classifying defects and establishing the nature and causes of their formation.The article presents the results of a metallographic study of a defect on the outer surface of a hot‑rolled seamless pipe. The genetic and morphological signs of the defect were determined. Descriptions of the appearance of the defect, the microstructure in the defect zone are given. A comparative analysis of the defect detected during magnetic powder control with defects on experimental pipe blanks with artificial defects was carried out. Based on the data obtained, the causes of the defect formation are determined, its classification is given.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"1 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":"129478292","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: 2
Structural features of a composite material produced by electric pulsed pressing from iron‑based multi‑component powder mixtures 电脉冲压制由铁基多组分粉末混合物制成的复合材料的结构特征
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-118-125
D. Minko, L. Dyachkova, T. Pinchuk
{"title":"Structural features of a composite material produced by electric pulsed pressing from iron‑based multi‑component powder mixtures","authors":"D. Minko, L. Dyachkova, T. Pinchuk","doi":"10.21122/1683-6065-2023-1-118-125","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-118-125","url":null,"abstract":"The study is dedicated to the electric pulse pressing use for the composite materials production from diffusion‑alloyed iron powders. It is shown that the addition of a low–melting metal component, tin, has a positive effect on the compaction of the composite iron powder during electric pulse pressing. The density of samples from Dystaloy AB iron powder with the addition of 10 % tin reaches 7.3–7.5 g/cm3. It is impossible to obtain such a density in the conventional cold pressing process at a pressure of 100– 120 MPa. It is established that due to the short duration of thermal exposure during electric pulse pressing, diffusion processes do not have time to pass and the distribution of alloying elements in the iron base is uneven. A short thermal exposure causes oxidation of the surface of the powder particles, which also negatively affects the diffusion processes. Therefore, when obtaining alloyed powder materials by electric pulse pressing, the process must be carried out in a protective atmosphere. The revealed presence of a nanoscale substructure formed due to the effects of intense plastic deformation and temperature indicates the hardening of the powder composite material during electric pulse pressing. These features can be useful in the development of technologies alternative to the warm pressing of plasticized powders.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"32 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":"123884071","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 30th International Scientific and Technical Conference “Foundry and Metallurgy 2022. Belarus” and the 5th International Conference of Suppliers OJSC “BSW – Management Company of Holding “BMС
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-11-18
M. A. Sadokha, B. M. Nemenenok, V. M. Konstantinov, T. N. Lipatkina
{"title":"The 30th International Scientific and Technical Conference “Foundry and Metallurgy 2022. Belarus” and the 5th International Conference of Suppliers OJSC “BSW – Management Company of Holding “BMС","authors":"M. A. Sadokha, B. M. Nemenenok, V. M. Konstantinov, T. N. Lipatkina","doi":"10.21122/1683-6065-2023-1-11-18","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-11-18","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"72 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":"130107501","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
Performance evaluation of metal mould for casting aluminium alloy (AA6063) of scientific products in National agency for science and engineering infrastructure 国家科工局科技产品铸造铝合金(AA6063)金属模具性能评价
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-51-57
Sh. Abdullahi Mohammed, T. Abdullahi Mohammed, S. Ibeh Chukwuemeka, S. Anyanwu Samuel
{"title":"Performance evaluation of metal mould for casting aluminium alloy (AA6063) of scientific products in National agency for science and engineering infrastructure","authors":"Sh. Abdullahi Mohammed, T. Abdullahi Mohammed, S. Ibeh Chukwuemeka, S. Anyanwu Samuel","doi":"10.21122/1683-6065-2023-1-51-57","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-51-57","url":null,"abstract":"The study investigated the major Causes of inconsistency in the cast results of the aluminium cast products from the metal moulds supplied by the then Hungarian Technical Partners to Scientific Equipment Development Institute, Minna. The metal moulds for different scientific products for Schools Scientific Laboratories were to achieve mass production of these products. The aluminium alloy A6063 ingot used were likewise imported. However, another consignment of the ingot used is produced in Nigeria by Nigerian Aluminium Extrusion Company, Lagos. Result of the products defects including shrinkage, blow holes, etc. remained the same, hence the need for this investigation work to ascertain the causes traceable to either moulds or the class or group of alloys.The outcome as shown could be that pouring speed or melting temperature etcetera are responsible for the inconsistency in obtaining acceptable cast products at different operations and with these moulds. A particular product mould gives inconsistent cast products and varying defects. This is applicable to all the available moulds supplied to the Institute at the same time.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"22 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":"130393446","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 at workplaces in finishing operations departments of foundries 铸造厂精加工部门工作场所的工作条件
Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) Pub Date : 2023-03-13 DOI: 10.21122/1683-6065-2023-1-138-142
A. М. Lazarenkov, M. A. Sadokha, A. A. Novik
{"title":"Working conditions at workplaces in finishing operations departments of foundries","authors":"A. М. Lazarenkov, M. A. Sadokha, A. A. Novik","doi":"10.21122/1683-6065-2023-1-138-142","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-138-142","url":null,"abstract":"The working conditions at the workplaces of foundry workers when performing finishing operations, production factors determining them are considered. The results of studies of the parameters of the working conditions of the considered professions of foundry workers in comparison with the standard values are presented. It has been established that in a comprehensive assessment of the working conditions of foundries working in the department of financial operations, it is necessary to take into account the duration of stay at the working equipment, the equipment and hand tools used, the type of alloy being smelted (steel, cast iron, non‑ferrous metals) and the nature of production.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"12 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":"128809598","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
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