Search for dissertations about: "silica refractory"

Showing result 1 - 5 of 10 swedish dissertations containing the words silica refractory.

  2. 1. Reactions between oxygen-containing iron melts and dense alumina or silica

    Author : Era Kapilashrami; KTH; []
    Keywords : Refractory; Liquid iron; Corrosion; Erosion; Contact angle; Wetting; Aluminia; Silica;

    Abstract : .... READ MORE

  4. 2. Study on the Interaction between Refractory and Liquid Steel Regarding Steel Cleanliness

    Author : Zhiyin Deng; Sichen Du; Miaoyong Zhu; Bart Blanpain; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; refractory; inclusions; Al-killed steel; submerged entry nozzle; clogging;

    Abstract : The present thesis focuses on the interaction between refractory and liquid steel. The aim of this work is to understand the interaction behavior between refractory and liquid steel regarding steel cleanliness. The effect of different refractories on different inclusions in Al-killed steel was studied in a furnace. READ MORE

  5. 3. Formation of non-metallic inclusions and the possibility of their removal during ingot casting

    Author : Lars Ragnarsson; Sichen Du; Carlo Mapelli; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ingot casting; tool steel; inclusion; runner; refractory; erosion; casting powder; cold model; argon shroud; reoxidation; oxygen measurement; CFD; PIV; Metallurgical process engineering; Metallurgisk processteknik;

    Abstract : The present study was carried out to investigate the formation and evolution of non-metallic inclusions during ingot casting. Emphasize have been on understanding the types of inclusions formed and developed through the casting process and on the development of already existing inclusions carried over from the ladle during casting. READ MORE

  6. 4. Aspects of Ash Transformations in Pressurised Entrained-Flow Gasification of Woody Biomass : Pilot-scale studies

    Author : Charlie Ma; Marcus Öhman; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; woody biomass; gasification; ash transformation; slag behaviour; refractory corrosion; Energiteknik; Energy Engineering;

    Abstract : Pressurised entrained-flow gasification (PEFG) of woody biomass has the potential to produce high purity syngas for the production of vital chemicals, e.g., biofuels. However, ash-related issues such as reactor blockages and refractory corrosion need to be addressed before this potential can be realised from a technical perspective. READ MORE

  7. 5. Investigation of Interactions between Liquid Iron Containing Oxygen and Aluminosilicate Refractories

    Author : Era Kapilasharmi; KTH; []
    Keywords : ;

    Abstract : The present work was initiated to investigate runnerrefractory corrosion by molten steel. The aim was to understandthe mechanism of inclusion formation during ingot casting. Thework is also of interest to other unit processes in steelmaking, where refractory corrosion and erosion are seriousproblems. READ MORE