Medium-thick slab casting technology, bridging the gap between conventional and thin-slab castin

Watzinger, Josef; Mörwald, K.; Wagner, A.

doi:10.1051/metal:2006164

Cited by 2 publications

(6 citation statements)

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“…While the growth of friction tension and pressure is 16 and 13% respectively, their enhanced ratio is significantly <26%, which means that the increase in the contact area is not in direct proportional to friction. The detection results of the literature 7 also confirmed that the larger the width, the lower the friction values per unit area. Thus, compared with the effects brought by the width on friction, the narrow slab surface and the area near the corner seem to result in a larger friction contribution.…”

Section: Contact Area Of Slabsupporting

confidence: 54%

“…In general, when casting speed and mould level change, friction and rms can make quick response; the magnitude of the detection results is consistent with previous published works. 2,4,7…”

Section: Methodsmentioning

confidence: 99%

“…In general, when casting speed and mould level change, friction and rms can make quick response; the magnitude of the detection results is consistent with previous published works. 2,4,7 It should be noted that the friction is not stable during steady state casting but maintains a certain fluctuation of ,5 kN. 7,8 It also can be seen that the fluctuation of friction caused by process variations is different from that in the stable casting process.…”

Section: Sensitivity Of Online Measurementmentioning

confidence: 99%

“…2,4,7 It should be noted that the friction is not stable during steady state casting but maintains a certain fluctuation of ,5 kN. 7,8 It also can be seen that the fluctuation of friction caused by process variations is different from that in the stable casting process. The monitoring results can distinguish the effect of casting parameters on mould friction sensitively, which confirm that mould friction is an appropriate indicator for reflecting the conditions of friction and lubrication.…”

Section: Sensitivity Of Online Measurementmentioning

confidence: 99%

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Effect of casting process on mould friction during wide, thick slab continuous casting

Wang

Zhang

Yao

et al. 2013

Ironmaking & Steelmaking

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Real time detection of the complex friction behaviour and reasonable regulation of lubrication between mould and initial solidified shell are key factors in quality improvement, steady operation and efficient production in continuous casting. In the present work, mould/slab friction was detected based on an online mould friction monitoring system on a wide, thick slab continuous caster equipped with hydraulic oscillators. The influence of the main casting parameters on mould friction is discussed including the casting temperature, slab dimensions and mould level. The response and sensitivity of friction to the changes of steel grade and powder were analysed, as well as the effects of different oscillation modes and oscillation parameters on friction. The results show that the friction is sensitive to variations of casting parameters, and steel grades and powder have significant effect on mould/slab friction behaviour. A reasonable match of oscillation modes and oscillation parameters can significantly optimise the friction behaviour at high casting speed, which also has an important role in improving the slab surface quality. These experimental results provided foundations for further understanding and controlling on the mould/slab friction behaviour.

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Section: Contact Area Of Slabsupporting

confidence: 54%

“…In general, when casting speed and mould level change, friction and rms can make quick response; the magnitude of the detection results is consistent with previous published works. 2,4,7…”

Section: Methodsmentioning

confidence: 99%

Section: Sensitivity Of Online Measurementmentioning

confidence: 99%

Section: Sensitivity Of Online Measurementmentioning

confidence: 99%

See 2 more Smart Citations

Effect of casting process on mould friction during wide, thick slab continuous casting

Wang

Zhang

Yao

et al. 2013

Ironmaking & Steelmaking

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“…Because the friction force is zero during no casting, the working force difference between casting (HOT) and no casting (COLD) at the same oscillation parameters represents mainly the contact actions between strand and copper plate and is termed as the friction force 14,15 and is given by friction~hot{cold (1)…”

Section: Principles Of Extractionmentioning

confidence: 99%

Mould lubrication and friction behaviour with hydraulic oscillators in slab continuous casting

Wang

Zang

et al. 2010

Ironmaking & Steelmaking

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It is very important to obtain reliable lubrication from casting powder both at the meniscus and in the gap between strand and mould as it affects slab surface quality and caster productivity. With knowledge of mould friction, a quantitative insight into the behaviour of powder during caster operation is possible. In the present research, the friction was studied based on a slab continuous caster equipped with hydraulic oscillators. The effects of mould oscillation and the abrupt change of casting speed on mould friction force were evaluated, and the characteristics of lubrication behaviour in a casting sequence were investigated. In particular, a comparison between the mould friction force between sinusoidal oscillation mode and non-sinusoidal oscillation mode was made. Finally, the characteristics of friction before a breakout are discussed. The experimental and analytical results may contribute to the development of mould friction online measurement and more clearly learn the lubrication behaviour in different conditions.

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Medium-thick slab casting technology, bridging the gap between conventional and thin-slab castin

Cited by 2 publications

References 0 publications

Effect of casting process on mould friction during wide, thick slab continuous casting

Effect of casting process on mould friction during wide, thick slab continuous casting

Mould lubrication and friction behaviour with hydraulic oscillators in slab continuous casting

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