Hot rolling strips at the casting and rolling unit during coil-to-coil and endless rolling modes

Levykina, A. G.; Shkatov, V. V.; Mazur, Igor P.

doi:10.1016/j.promfg.2019.12.076

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…Therefore, it is considered that in the process of contact and heat transfer between molten magnesium alloy and roll, roll has sufficient heat transfer capacity and can keep constant temperature. Thickness of molten magnesium alloy sheet is H2 after cooling and rolling [15,16].…”

Section: Boundary Conditionsmentioning

confidence: 99%

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Lai

Zhou

Guo

2022

J min metall B Metall

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Process of horizontal twin roll casting magnesium alloy was analyzed by numerical simulation. Taking solidification welding line in cast rolling area as research object, the characteristic change of solidification welding line caused by casting rolling temperature, casting rolling speed and roll heat transfer capacity and its influence on the forming process of casting rolling area were analyzed. The results show that increasing casting temperature, casting speed or reducing heat transfer capacity of roll can make solidification welding line shift to exit of casting rolling zone. Increasing casting temperature and casting speed will increase difference between middle and edge of the solidification welding line along casting direction. And heat distribution of whole slab is more uniform. However, effect of improving heat transfer capacity of roll is completely opposite. According to this, optimum process parameters of casting and rolling magnesium alloy with plate thickness of 6 mm are put forward to reduce probability of edge crack.

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Section: Boundary Conditionsmentioning

confidence: 99%

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Lai

Zhou

Guo

2022

J min metall B Metall

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“…Comparatively, the manufacturing process of hot-rolled steel involves heating a billet to a temperature above the material’s recrystallization temperature (>1000 °C), followed by continuous rolling, extrusion, forging, and production. Throughout this entire process, both the shape and size of the material undergo significant changes [ 19 , 20 , 21 , 22 , 23 , 24 ]. Hot-rolled steel offers advantages such as relatively easy rolling and a high rolling efficiency.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Anti-Corrosion Properties of Different Types of Press-Hardened Steels

Peng,

Zhao,

et al. 2024

Materials

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Hot stamping (or press hardening) is a new technology that is widely used in the production of advanced high-strength steel parts for automotive applications. Electrochemical measurements, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), and accelerated corrosion tests (the neutral salt spray test and periodic immersion test) were conducted on press-hardened samples produced from uncoated (cold-rolled and cold strip production (CSP) hot-rolled) and Al–Si-coated press-hardened steels to elucidate their distinct anti-corrosion mechanisms. The cross-sectional micromorphology and element distribution of three types of press-hardened steels after a neutral salt spray test were observed using scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDAX). The corrosion resistance of Al–Si-coated press-hardened steel was found to be significantly diminished following the hot stamping process due to the presence of microcracks and elevated iron content in the coating subsequent to austenitizing heat treatment. On the other hand, the corrosion resistance of uncoated press-hardened sheets produced from cold-rolled and CSP hot-rolled press-hardened steel was found to be proximal due to their nearly identical composition and microstructure (fully martensite) after the hot stamping process. Considering the high efficiency and energy-saving properties of hot-rolled press-hardened steel, it holds the potential to replace cold-rolled and even aluminum–silicon-coated press-hardened steel in automobile manufacturing.

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Impact of Ni on the thermophysical and thermodynamic properties of Fe–C–Ni based alloys

Drozdová

Smetana

Machů

et al. 2022

Journal of Materials Research and Technology

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Hot rolling strips at the casting and rolling unit during coil-to-coil and endless rolling modes

Cited by 6 publications

References 2 publications

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Comparative Study of Anti-Corrosion Properties of Different Types of Press-Hardened Steels

Impact of Ni on the thermophysical and thermodynamic properties of Fe–C–Ni based alloys

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