Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Roberto Parreiras Tavares"'
Autor:
Daniela Fátima Gomes, Bernardo Martins Braga, Roberto Parreiras Tavares, Maurício Covcevich Bagatini, Carlos Berlini Filho, Gabriela Pereira Maciel
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 3957-3972 (2023)
The present work explores the feasibility of producing blooms and beam blanks in a continuous casting machine using a single support rollers setup, aiming to eliminate the need for specialized setups for each geometry. The current practice requires f
Externí odkaz:
https://doaj.org/article/817cc7e3f82e43099d279eae8c93e7be
Publikováno v:
REM: International Engineering Journal, Vol 73, Iss 4, Pp 531-538 (2020)
Abstract Gas injection in the tundish has been considered as an alternative to optimizing inclusion removal from steels. In the present study, physical and mathematical modeling were used to investigate the effect of gas injection in the tundish on t
Externí odkaz:
https://doaj.org/article/be19d92317724d819f82ce3c8dbb4660
Autor:
Ronaldo Rodrigues Vieira, Izabela Diniz Duarte, Henrique Lacerda Eleutério, Thalisson Gustavo de Oliveira, Maurício Covcevich Bagatini, Roberto Parreiras Tavares
Publikováno v:
Materials Research, Vol 25 (2022)
The production of hot-dip galvanized steel presents great challenges, because it is currently the main raw material in the manufacturing of automobiles, and its surface quality is fundamental for the construction of automobiles. Obtaining the best su
Externí odkaz:
https://doaj.org/article/a7060689683c48aaa243d028def2ba3b
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 1, Pp 1150-1160 (2019)
Iron ore pelletizing plant consumes coal, pet coke, oil and natural gas to get the required chemistry, physical and metallurgical properties for iron ore pellets, consumed in steel industry. Tests were carried out to burn green iron ore pellets, whic
Externí odkaz:
https://doaj.org/article/5e7d6bd3c66146ffaff9fcaa7309c289
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 1, Pp 1197-1202 (2019)
The quenching process is one of the most important steps in steel heat treatment and has a significant impact on the quality of the product. In systems with water cooling rings, there are several operational parameters that affect the performance of
Externí odkaz:
https://doaj.org/article/449af4f65147451380d92aa12720a5ac
Autor:
Dimas Henrique Barros Andrade, Roberto Parreiras Tavares, Alfredo Carlos Bitarães Quintas, Victor Eric de Souza Moreira, Arthur Oliveira Viana, Vitor Maggioni Gasparini
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 1, Pp 134-139 (2019)
In the current scenario of quality impoverishment of the raw materials charged into blast furnaces, it becomes fundamental to understand the phenomena that directly affect the operational stability of these reactors. This paper evaluated a relationsh
Externí odkaz:
https://doaj.org/article/dfa224124bec4c818745f26a0843bae3
Autor:
Ronaldo Rodrigues Vieira, Henrique Lacerda Eleutério, Thalisson Gustavo de Oliveira, Maurício Covcevich Bagatini, Roberto Parreiras Tavares
Publikováno v:
Materials Research, Vol 24, Iss 3 (2021)
The production of galvanized steel with zinc (GI) presents great challenges due to the high demand for surface quality required for its applications. The automotive segment is one of the largest consumers of this type of product. In hot dip galvanizi
Externí odkaz:
https://doaj.org/article/bd4397e89903428cae141fcefc8beac3
Autor:
Breno Totti Maia, Rafael Kajimoto Imagawa, Gustavo Abreu, Ana Clara Petrucelli, Roberto Parreiras Tavares
Publikováno v:
Journal of Materials Research and Technology, Vol 5, Iss 1, Pp 58-67 (2016)
The EOF reactor was developed in Brazil in the eighties with unique features. The preheating of scrap and distribution of injection points oxidizing gases and fuels make up these features. This paper aims to reproduce the behavior of the metal bath a
Externí odkaz:
https://doaj.org/article/2bdc6fb0509c48bab3afa673d11ebd4d
Autor:
Leonardo Neves, Larissa de Barros Machado Vilela, Roberto Parreiras Tavares, Ricardo Luiz Perez Teixeira
Publikováno v:
Tecnologia em Metalurgia, Materiais e Mineração, Vol 12, Iss 1, Pp 29-35 (2015)
Continuous casting is a solidification process, in which the knowledge about its variables is very important in order to produce steel with good quality. The tundish distributes the steel coming from the ladle to the metallurgical mold as the tradi
Externí odkaz:
https://doaj.org/article/2186ad5f9db445ac96b9fb0c72854021
Publikováno v:
Tecnologia em Metalurgia, Materiais e Mineração, Vol 11, Iss 4, Pp 363-370 (2014)
In the present work, the water flux densities of nozzles with flat jet and full cone jet were experimentally measured using an apparatus in industrial scale that reproduces the secondary cooling of the continuous casting of round billets of Vallour
Externí odkaz:
https://doaj.org/article/f6cad7f7e82d43ecb6a82bc79abc0052