Zobrazeno 1 - 10
of 264
pro vyhledávání: '"steel ingot"'
Publikováno v:
Teshugang, Vol 45, Iss 3, Pp 1-4 (2024)
Based on the current quality situation of ESR bearing steel for passenger railway and wagons in China， the grade 8620 steel bars with diameters between 60 mm and 120 mm are produced with the process as follows：70 t EAF（HotMetal+Scrap）→LF→
Externí odkaz:
https://doaj.org/article/5ee7865f0d9347928e26683b0861aea6
Publikováno v:
工程科学学报, Vol 46, Iss 4, Pp 715-722 (2024)
This paper investigated the effect of calcium treatment on the sulfide morphology of 303-ton 16Mn tube sheet ingots through industrial experiments. The defects in forgings without calcium treatment were mainly distributed axially near the top of the
Externí odkaz:
https://doaj.org/article/a4a62c043d85411fad716d95b87288e1
Publikováno v:
High Temperature Materials and Processes, Vol 42, Iss 1, Pp id. 2000079-1116 (2023)
Aiming at the quality problems such as segregation, porosity and shrinkage cavities that are difficult to eliminate due to the size effect of large die-cast steel ingots as large forging blanks, the idea of layered casting of large steel ingots is pr
Externí odkaz:
https://doaj.org/article/1ebbd83e173d46e49bf96ab50a097fbb
Akademický článek
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Autor:
Jing-an Yang, Hou-fa Shen
Publikováno v:
China Foundry, Vol 18, Iss 2, Pp 110-117 (2021)
Steel ingot with a large height-to-diameter ratio is utilized to produce multiple products by one stock in practice. Water cooling is a usual way to enhance production efficiency. However, the combination of the two factors will generate internal def
Externí odkaz:
https://doaj.org/article/00cf123a1b99408c9f137153d565f16f
Publikováno v:
Metalurgija, Vol 59, Iss 4, Pp 463-466 (2020)
In this paper, the temperature field and heat transfer stress mathematical model of the unidirectional solidification ingot of the traditional water-cooled chassis and the improved water-cooled chassis are established, and the numerical simulation ca
Externí odkaz:
https://doaj.org/article/9bace19086934839801fbc24f0fb7034
Akademický článek
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Publikováno v:
Metalurgija, Vol 60, Iss 3-4, Pp 195-197 (2021)
According to the production practice of 14 tons flat ingot, the influence of heat preservation measures on solidification state of ingot head is analyzed by the software ProCAST. The results show that the heating riser and electromagnetic heating ris
Externí odkaz:
https://doaj.org/article/1a1f053b38614b6c94502ea2383fb857
Publikováno v:
Metalurgija, Vol 59, Iss 4, Pp 467-469 (2020)
In this paper, the solidification process of eleven tons flat steel ingot is simulated by the finite element analysis software PROCAST, and the solidification state of the ingot with and without chassis is analyzed and compared. The results show that
Externí odkaz:
https://doaj.org/article/0b908c7d0505417cad32fb94a8926f11
Publikováno v:
China Foundry, Vol 16, Iss 5, Pp 291-299 (2019)
Shrinkage cavity has significant influence on macrosegregation in steel ingots. An arbitrary Lagrangian-Eulerian (ALE) model based on volume averaging method is developed to predict the coupled formation progress of macrosegregation and shrinkage cav
Externí odkaz:
https://doaj.org/article/50a73830e91f47d69f4834ff80d92c0b