Learn · Steel Quality: Role of Secondary Refining & Continuous Casting
Lecture 2 of 49Week 1
Control of Residuals and Impact on Quality
Prof. Santanu Kr. Ray · IIT Madras
Credits and licence
- From
- Steel Quality: Role of Secondary Refining & Continuous Casting, IIT Madras (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- Teens profiles and older. How courses are placed
All the lectures
- Concept of Steel Quality
- Control of Residuals and Impact on Quality
- Non-Metallic Inclusions
- Evaluation of Residuals and Inclusions
- Cleanliness Requirements for Different applications
- Limitation of Primary Steelmaking & Importance of secondary Refining
- Deoxidation
- Prevention of Slag carryover
- Desulphurisation
- Degassing
- Secondary Refining Processes
- Injection of Calcium
- Different Routes and Temperature Control
- Decarburisation
- Cleanliness Measures in Ladle and Tundish
- Cleanliness Measures in Mould
- Nature and Distribution of Entrapments in Casting
- Genesis of Entrapment
- Effect of Vertical vis-a-vis Curved Mould
- Quality of Cast Product
- Role of Concast Process, Caster Design and Steel Grade
- Primary Cooling in Caster Mould
- Heat Transfer in Mould
- Role of Mould Oscillation
- Cast Structure and Dendrite Size
- Role of Chemistry : Part I
- Role of Chemistry : Part II
- Role of Segregation : Part I
- Role of Segregation : Part II
- Deleterious Effect of Phosphorus
- Strength of Solidifying Strand
- Brittle Zone Near Solidus
- Strength and Toughness of Solid Shell
- Role of Chemistry on Solidification Behaviour
- Sticking vis-a-vis Depression Behaviour
- Role of Chemistry on Bulging or Depression Tendency : Part I
- Role of Chemistry on Bulging or Depression Tendency : Part II
- Effect of Cast Grain Size
- Brittle Temperature Regions
- Typical Cracks and Defects : Part I
- Typical Cracks and Defects : Part II
- Remedial Measures to Control Defects : Part I
- Remedial Measures to Control Defects : Part II
- Remedial Measures to Control Defects : Part III
- Grade - Specific Casting Parameters : Part I
- Grade - Specific Casting Parameters : Part II
- Identification of Genesis of Quality Problems Through Metallographic Investigation : Part I
- Identification of Genesis of Quality Problems Through Metallographic Investigation : Part II
- Identification of Genesis of Quality Problems Through Metallographic Investigation : Part III