Sökning: "Non-metallic Inclusions"

Visar resultat 6 - 10 av 39 avhandlingar innehållade orden Non-metallic Inclusions.

1. 6. A Study on the Correlation between Ladle Glaze and Non-Metallic Inclusions in the Ladle Treatment

   Författare :Minho Song; Du Sichen; Jerome P. Downey; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-metallic inclusions; ladle treatment; ladle glaze; tracer; tool steel; viscosity; activity; modelling; Al2O3-CaO-MgO-SiO2 system; Materials science; Teknisk materialvetenskap;

   Sammanfattning : In the present thesis, the correlation between ladle glaze and non-metallic inclusions in the ladle treatment was studied. A number of industrial trials with full scale ladle and laboratory works were performed to investigate the inclusions in the ladle treatment. LÄS MER

3. 7. Evaluations of Non-metallic Inclusionsin Ca-treated Steels and Their Effect on the Machinability

   Författare :Hongying Du; Andrey Karasev; Pär Jönsson; Lauri Holappa; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-metallic inclusions; Ca treatment; stainless steel; machinability.; icke-metalliska inneslutningar; kalciumbehandling; rostfritt stål; skärbarhet.; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : In recent decades, a considerable development of steel with respect to the performance of steel has taken place, which also has resulted in large challenges to process these steel grades. Therefore, it is essential to make suitable modifications of non-metallic inclusions (NMI) in the steelmaking process and to have a good control of its characteristics to meet the target mechanical properties and to obtain a good machinability. LÄS MER

4. 8. Impact of aluminium addition on the chemistry of non-metallic inclusions in ladle treatment

   Författare :Kristina Beskow; KTH; []
   Nyckelord :Ladle treatment; Inclusions; Nucleation; Aluminium addition;

   Sammanfattning : .... LÄS MER

5. 9. A Study on the Population and Chemical Development of Non-Metallic Inclusions in the Tool-Steel Making Process

   Författare :Nagendra Tripathi; KTH; []
   Nyckelord :Metallurgy; Inclusions; Industrial; Technology;

   Sammanfattning : The present work was to study the population and chemicalcharacterization of the inclusions at different steps of thetool steel making process based on industrial trialexperiments. The inclusion populations were found to increasewith ladle age (number of heats ladle being used) beforealuminium deoxidation and before casting. LÄS MER

7. 10. Formation and Chemical Development of Non-metallic Inclusions in Ladle Treatment of Steel

   Författare :Kristina Beskow; KTH; []
   Nyckelord :Metallurgy; Steel making; Ladle Treatment; Inclusion chemistry;

   Sammanfattning : The present study was carried out to investigate theformation and chemical development of non-metallic inclusionsduring ladle treatment of steel.To begin with, an investigation of the deoxidation processand the impact of aluminium addition was carried out. For thispurpose, a new experimental setup was constructed. LÄS MER