Addressing Edge Crack Issues in Duplex Stainless Steel during Hot Rolling
Key Takeaways Comprehensive Process Analysis – A systematic review of the hot rolling process identified key factors contributing to edge cracking in duplex stainless steel plates. Enhanced Product Quality – Improved slab handling, including edge chamfering, significantly reduced edge cracks and improved final product quality. Optimised Chemical Composition – Adjusting the balance of ferrite and […]
Optimising Pickling Line Conditions to Increase Efficiency
Key Takeaways Process Optimisation – Addressing inconsistencies in pickling improved overall efficiency and steel quality. Chemical Control – Regulating chloride levels and stabilising HCl, iron, and pH prevented over-pickling. Temperature Management – Better control reduced material inconsistencies before cold rolling. Quality Tracking & Training – Implementing staff training and monitoring improved process consistency. Significant Impact […]
Controlling Spangle Formation During Galvanising process
Key Takeaways Precise Process Control is Essential – Managing zinc bath chemistry, cooling rates, and substrate standards helped achieve consistent spangle formation. Optimised Temperature Management – Adjusting burners to maintain a minimum strip temperature of 500°C improved spangle consistency. Unnecessary Additives Eliminated – Removing 53 metric tonnes of tin annually saved £700K per year without […]
Reducing Longitudinal Depression and Hot Cracking in Duplex Stainless Steel Slabs
Key Takeaways Problem: A stainless steel producer in Asia faced defects in duplex stainless steel slabs due to improper casting parameters and powder formulations. Challenge: Defects led to material loss, reducing yield and disrupting downstream operations. Solution: Identified defect causes, optimised casting settings and powder formulations, and provided staff training. Improvements: Reduced grinding loss to […]
Optimising AOD Chemical Composition of Duplex Stainless Steel
Key Takeaways Problem: A stainless steel producer in Southeast Asia faced quality issues due to non-optimised chemical compositions, leading to frequent casting defects. Challenge: Needed to optimise chemical composition to ensure consistent product quality. Solution: Adjusted desulphurisation and decarburisation steps and proposed SOP modifications for better chemical control. Improvements: Reduced steel sulphur content, controlled hydrogen […]