Effect of Strip Velocity on Pickling Rate of Hot-Rolled Steel in Hydrochloric Acid

Hudson, R. M.; Warning, C. J.

doi:10.1007/bf03339114

Cited by 14 publications

(12 citation statements)

References 2 publications

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“…The temperature of the liquid also influences the pickling rate: higher temperature reduces the pickling time, but the influence of the temperature may be disregarded since the temperature is maintained relatively constant due to the heat exchanger. Hudson and Warning (1982) have shown that the pickling time decreases when the strip velocity increases. However, above a certain strip velocity limit, the pickling time is constant.…”

Section: Description Of the Processmentioning

confidence: 95%

“…However, the pickling rate is not noticeably influenced by the concentration of ferrous salt. Overpickling is prevented by adding a special inhibitor to the pickling acid (Hudson & Warning, 1982). In addition there are other parameters which influence the pickling rate, for example, the oxide thickness, strip temperature and type of metal.…”

Section: Description Of the Processmentioning

confidence: 99%

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Hybrid grey box modelling of a pickling process

Sohlberg

2005

Control Engineering Practice

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Section: Description Of the Processmentioning

confidence: 95%

Section: Description Of the Processmentioning

confidence: 99%

Hybrid grey box modelling of a pickling process

Sohlberg

2005

Control Engineering Practice

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“…Liu Jiang [6] hold opinions that the acid temperature is a function of the best strip speed, and the acid liquid turbulence is also the function of acid temperature. Hudson [7][8][9]had studied the effects of acid concentration, temperature and speed of the strip on acid pickling time, and think that when the acid temperature is low, elongation rate for pickling promotion effect is obvious. But when the temperature is high, the effect of elongation rate to enhance the speed of picking is weak.…”

Section: Introductionmentioning

confidence: 99%

Study on Mathematical Model for Pickling of Automotive High Strength Steel

Zhang¹,

Zhou²,

Liu³

et al. 2017

dtetr

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Abstract. The effects of acid concentration, temperature and the thickness of strip oxide scale on the pickling time of high strength steel were studied and a pickling time mode was established. The end time of acid pickling was determined by introducing the electropotetial derivative near zero method. The effects of different pickling temperatures and acid concentrations on the pickling time of different thickness scales were studied by further experiments. When increase acid concentration to 10%, pickling time is greatly reduced, and continue to increase the acid concentration will have little help to shorten the pickling time. When the acid temperature reaches 80℃, the pickling efficiency reaches the highest value. If the temperature continuous to increase, it will not only waste energy but also increases the volatilization of hydrochloric acid. The comprehensive pickling model was established and the actual high strength steel pickling data was brought into the test. The proposed comprehensive pickling model in this paper has better accuracy and validity than the old ones.

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“…Therefore, many researchers have shown keen interest in investigating the corrosive behavior of low carbon steel in an acid environment. Among the mineral acids, hydrochloric acid is generally used in pretreatment of metallic components (Hudson & Warning, 1980;Kaan Emregul & Hayvali, 2006).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Corrosion of Low Carbon Steel in a Hydrochloric Acid Medium

Shetty¹,

Shetty²

2016

IJTech

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Inhibition is one of the mechanisms used for mitigating the metallic corrosion, particularly in an acid environment. The present work aims to investigate the inhibiting effect of N-benzyl-N / -phenyl thiourea (BPTU) on the corrosion of low carbon steel in a 0.1 M hydrochloric acid (HCl) solution using a Tafel extrapolation and linear polarization techniques. The study reveals that BPTU acts as an excellent anodic inhibitor for low carbon steel in a HCl solution. The protective efficiency of the compound was found to be more than 97% even at higher temperatures. The study demonstrated that BPTU gets adsorbed on the steel surface, following Temkin's adsorption isotherm and the inhibition is controlled by a chemisorption mechanism. The investigation shows that the results obtained from the Tafel extrapolation and linear polarization techniques for the corrosion of mild steel in HCl medium were in good agreement. The influence of temperatures and concentrations of BPTU on the corrosion of low carbon steel are also examined in the present work.

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Effect of Strip Velocity on Pickling Rate of Hot-Rolled Steel in Hydrochloric Acid

Abstract: SUMMARYThe combined effect of strip velocity with other parameters on pickling rate of hot-rolled low-carbon steel in hydrochloric acid (HCl)

Cited by 14 publications

References 2 publications

Hybrid grey box modelling of a pickling process

Hybrid grey box modelling of a pickling process

Study on Mathematical Model for Pickling of Automotive High Strength Steel

Electrochemical Corrosion of Low Carbon Steel in a Hydrochloric Acid Medium

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