Zobrazeno 1 - 10
of 733
pro vyhledávání: '"ZHANG Li-feng"'
Publikováno v:
Cailiao gongcheng, Vol 49, Iss 2, Pp 66-72 (2021)
Ferrosilicon alloy is widely used as alloying agent and deoxidizer in the steelmaking process, which containing the metallic impurities of Al, Ca, and Ti would directly affect the cleanliness of the molten steel. Therefore, metallic impurities from t
Externí odkaz:
https://doaj.org/article/4d3e9e6c6d02495a8082d0391a52e947
Publikováno v:
Yankuang ceshi, Vol 38, Iss 5, Pp 556-564 (2019)
BACKGROUND The Bayan Obo mining area is the main producing area of rare earth elements. During mining and refining, rare earth elements enter plants through migration and enrichment. Study on the distribution characteristics and migration patterns of
Externí odkaz:
https://doaj.org/article/9bd1db017825463082b789ab712a9839
Publikováno v:
工程科学学报, Vol 40, Iss 12, Pp 1434-1453 (2018)
There are various interfacial phenomenona in ironmaking and steelmaking, including slag foaming, nucleation, aggregation, removal of inclusions in steel, and refractory corrosion. The slag-metal interface has a crucial influence on the mass transfer,
Externí odkaz:
https://doaj.org/article/4bd0c79c19744bcc83afb7ecd1fa7880
Autor:
LI Ming, WANG Xin-cheng, DUAN Jia-heng, YANG Wen, CHENG Gong, WANG Lei, YANG Li-wei, ZHANG Li-feng
Publikováno v:
工程科学学报, Vol 40, Iss S1, Pp 31-35 (2018)
There are strict requirements for non-metallic inclusions in bearing steel, especially for Type-D inclusions.To analyze the formation mechanism of Type-D inclusions in high-frequency detection defects of GCr15 bearing steel bar sample in domestic ste
Externí odkaz:
https://doaj.org/article/92ba152626f24940855162cabd6a2c09
Publikováno v:
工程科学学报, Vol 40, Iss 10, Pp 1139-1157 (2018)
A number of important links in the metallurgical production process are related to interface phenomena, including slag foaming, hot metal desulphurization, refractory erosion, converter blowing, the behavior of inclusions in steel, and so on. Interfa
Externí odkaz:
https://doaj.org/article/eb3bfaf964b6492d878d78580a299dde
Publikováno v:
工程科学学报, Vol 39, Iss 2, Pp 251-258 (2017)
Hook characteristics in continuous casting slabs of low-carbon steel under different casting conditions were investigated. According to hook morphology, hooks were classified into different types. Distributions of bubbles and inclusions near hooks we
Externí odkaz:
https://doaj.org/article/1566eeaac4cf4da98545676f4581dcaa
Publikováno v:
工程科学学报, Vol 39, Iss 1, Pp 54-60 (2017)
The suspension and mixing characteristics of high-content solid particles were experimentally studied in a tank stirred with an Intermig impeller.An optical fiber technology was adopted to measure the bottom and axial solid concentration under differ
Externí odkaz:
https://doaj.org/article/3469a40d59454e8d9a8e0ae0e2880c0d
Publikováno v:
工程科学学报, Vol 39, Iss 1, Pp 48-53 (2017)
The viscosity of solid-containing slags can be calculated using the Roscoe equation combined with the calculation functions of multi-component & multi-phase equilibria and pure-liquid slag's viscosity in FactSage software. An FeO-SiO2-Fe3O4-CaO-Al2O3
Externí odkaz:
https://doaj.org/article/62dadd3d44aa4da6a2aa8c85d076accc
Publikováno v:
工程科学学报, Vol 38, Iss 10, Pp 1393-1403 (2016)
A 1/4 scale water model of slab molds was built to investigate the fluid flow and its symmetry during casting. The model was established according to a 200 mm×2040 mm actual mold. The velocity in the mold was measured by using particle image velocim
Externí odkaz:
https://doaj.org/article/258419584fff434cb8e2e8c824ab04dd
Publikováno v:
工程科学学报, Vol 38, Iss 6, Pp 805-811 (2016)
The hot ductility of a Ti-bearing microalloyed steel was studied at temperatures of 600 to 1350 ℃ by a thermal simulator Gleeble 1500.The fracture morphology and microstructure were observed by scanning electron microscopy and optical microscopy.Th
Externí odkaz:
https://doaj.org/article/21a62f4df4a34c2784d7ade7864d2b25