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Tai chung, Taiwan

Yang C.M.,Dragon Steel Corporation | Wiegmann V.,SMS Mevac GmbH | Eichert T.,SMS Mevac GmbH
MPT Metallurgical Plant and Technology International | Year: 2012

Dragon Steel Corporation, a member of the CSC group, has erected a modern integrated steelmaking plant in Taichung, Taiwan. Its new BOF melt shop by SMS Siemag is designed for three 220 t converters and a ladle metallurgy center with two RH-TOP plants and four ladle treatment stations. The essential advantages of this compact plant layout are the transportation of the liquid hot metal in open ladles, thus neither a hot metal refilling station nor torpedo cars are required. By applying open ladles instead of torpedo ladle cars for the hot metal transport, the investment costs for transport and maintenance equipment could be drastically cut. Dart-type slag retaining devices and sub-lances complete the converter equipment. A gas cleaning plant, a converter gas recovery plant, refining stations for fine adjustment of the chemical composition of the steel as well as all cars and ladles for handling hot metal, liquid steel and slag are also part of the scope of supply of SMS Siemag. Source

Shenc C.W.,Dragon Steel Corporation
SEAISI Quarterly (South East Asia Iron and Steel Institute) | Year: 2015

It has been a long history of studies on the Rolled in Scales of hot rolled strip. Among them, "Comets" were "very peculiar" because they occurred on the top surface, but on the bottom sur-face at the same location under the larger "comets" was a "mirror image" in colors. By visual ca-tegorization, Optical Microscope, and Scanning Electron Microscope (SEM) analysis, the defect may be caused by intrinsic slab defect, over-worn work rolls of rough mill, or damaged work rolls of finish mill. This defect formed on a strip, redirecting and slowing cooling water therefore introducing regional over-cooling, finally brings itself a Comet-like outlook. Different root causes and solutions were studied in this work. And finally the results have shown the nonconformance rate of "Comets" is declined magnificently. Source

Chi J.-H.,Wufeng University | Peng P.-C.,Dragon Steel Corporation
Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an | Year: 2016

Determining the cause of an arson fire is the most difficult part of fire investigation. In this study, the researcher used various clues and several pieces of fire debris collected from the actual fire site to conduct a series of experiments and analyses in sequence, starting from metallographic analysis to inductively coupled plasma optical emission spectrometry and then a thermal analysis experiment to determine the cause of a fire. It was found that when the temperature was elevated at a rate of 2 °C/min, polyurethane (PU) foam, a structural component of refrigerators, started thermal decomposition. At about 130 °C, the thermal decomposition accelerated, and eventually at 384 °C, about 4883.33 J/g of maximum heat was released. In the end, remaining debris was about 4.96%. Therefore, the combustion of PU foam is an ultrafast type of combustion reaction. The content as well as the experimental procedure of the study is useful for fire investigators in determining the cause of arson fires. © 2016 The Chinese Institute of Engineers Source

Dragon Steel Corporation | Date: 2012-07-03

Irons, steels.

Dragon Steel Corporation | Date: 2006-10-17

Iron, steel.

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