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| Experimental of gas-solid decarburization of Fe-C alloy ribbon |
| HONG Lu-kuo1,2，AI Li-qun1，CHENG Rong1，SUN Cai-jiao1，SUI Yan-long1 |
1. College of Metallurgy and Energy，North China University of Science and Technology，Tangshan 063009，Hebei，China
2. State Key Laboratory of Advance Steel Processes and Products，Central Iron and Steel Research Institute，Beijing 100081，China |
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Abstract The current study proposed a novel short process for carbon steel strip production， twin-roll iron strip casting and high temperature gas-solid decarburization. The Fe-C alloy ribbons was decarburized by introducing the oxidizing gas of Ar-H2-H2O into the horizontal tube furnace with controlled atmosphere for producing low carbon steel ribbons. By the orthogonal design and analysis experimental methods， the water temperature (40-60 ℃)， the decarbonization time (5-50 min) and the decarbonization temperature (920-1 140 ℃) were studied. The results show that it is beneficial for the decarbonization with higher decarbonization temperature， higher water temperature and longer decarbonization time. But the most significant factor is the decarbonization temperature， followed by the decarbonization time and the water temperature has little influence. When the decarbonization time is 25 min， the average mass percent of carbon of ribbons (thickness：2.0， 1.0， 0.5 mm) with 4.05%C can be decreased to 1.12%， 0.41% and 0.017% under the condition of decarbonization temperature with 1 140 ℃ and water temperature with 60 ℃. Based on these results， it is confirmed that it is feasible that Fe-C alloy ribbon is decarburized by gas-solid reaction for producing medium and low carbon steel ribbon in controlled atmosphere.
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Received: 09 April 2015
Published: 18 March 2016
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2016, Vol. 51 
