Inclined nozzles and zone-by-zone switching overlap cooling regions to even hot-rolled steel sheet temperature and stabilize coiling.
Rotatable side covers and reflective panels help rolling transfer lines retain heat across varying material sizes and reduce temperature deviation.
Outer-surface cooling around the mandrel cools hollow shells evenly after piercing, reducing fore-to-rear temperature differences.
Three flamethrowers create a controlled radial temperature gradient in drill steel billets to prevent uneven deformation and radial fractures.
By setting plate passage speed against cooling rate, roll pitch, thickness, and width, this case limits buckling strain during roll-constrained cooling.
Staggered side spray units and water collection purge residual strip water, improving cooling uniformity while limiting splash and backflow.
A martensite-bainite steel composition balances 460-540 HB hardness with -40°C impact toughness while avoiding extra heat treatment.
A ferrite-martensite-bainite steel composition limits HAZ hardness drop during electric resistance welding while preserving strength and roll formability.
Priority control of rolling mill water headers keeps active sprays above unstable low-flow ranges, improving strip temperature uniformity.
Multi-stage temperature computation tracks steel plate heat distribution from furnace extraction to induction heater delivery for more uniform rolling.
Warm rolling at 250-450°C with 40-90% pass reduction cuts magnesium sheet passes while improving strength and ductility.
Adjustable outlet-row cooling raises flow through active nozzles for narrower flat products, improving temperature uniformity without edge overspray.
Outer-surface cooling around the mandrel bar evens hollow shell temperature during piercing, reducing axial variation in pipe properties.
Symmetric full jet and full cone nozzles let steel sheet cooling shift from gentle to intense while maintaining uniformity and reducing internal stress.
Variable spray distance and angle let guide-mounted nozzles cool hot-rolled steel sheets uniformly while simplifying roll replacement.
By modeling temperature and stress turn by turn in the wound coil, this case improves microstructure prediction and strip uniformity.
Variable outlet-opening density matches cross-strip temperature slopes to prevent edge overcooling and improve cooling uniformity.
Controlled alloy ranges and tempcore cooling create reinforcing steel with ferrite-pearlite and tempered martensite for 500 MPa strength.
Upstream strip temperature is modeled at the last rolling stand exit to control cooling, heating, and insulation for better temperature uniformity.
Deviation detection and real-time cooling recalculation tailor heat treatment to each steel sheet, reducing property dispersion and microstructure variation.
Pre-flattening the hot steel plate and limiting dewatering roller load helps block water leakage, avoid shape defects, and keep cooling uniform.
A bainite-dominant hot-rolled steel sheet uses composition and grain-boundary control to combine high strength with ductility, toughness, and hole expansibility.
Adjusting nozzle angle by spray distance enables rapid, uniform cooling near rolling stands to suppress grain growth in hot-rolled steel sheet.
Controlled rolling and coiling create a decarburized surface layer that improves hot-stamped part bending and brittle fracture resistance.
Paired side nozzles align spray impact zones across the strip width to prevent overcooling, improve temperature uniformity, and aid water removal.
Controlled composition and annealing suppress nitrogen pickup and coarse cementite, preserving elongation and hardenability in hot-rolled steel sheet.
A self-induced oscillating burner uses staged outlet layout and gas mixing to heat uniformly while reducing NOx in direct-firing furnaces.
Balances top and bottom heat removal using surface temperature-based coolant control to keep heavy plate flat at high throughput.
Hinge-linked insulation side parts adapt to thermal expansion and installation width changes, extending rolling mill cover life.
Phase-based enthalpy modeling improves metal heating control by predicting temperature distribution more accurately while reducing energy use.
Circumferential water spraying uses residual heat to quench seamless steel tubes, forming martensite while limiting cracking and alloy cost.
Standing sound waves coupled into hot rolling stock control grain size during cooling, enabling more uniform properties and freer cooling-section placement.
High-Si plus Nb-Ti alloying enables 980 MPa hot-rolled dual-phase steel with ferrite-martensite balance for wheel formability.
Fine Ti, Nb, and V precipitates trap hydrogen in hot stamping steel, improving delayed fracture resistance without sacrificing strength and bendability.
Kriging-derived adaptation values extend cooling-section control beyond known process ranges, improving target temperature prediction for rolled products.
Precomputed strip temperature and speed targets cut annealing control calculation time while improving material property accuracy and yield.
A ferrite-bainite microstructure and staged cooling raise hot-rolled steel to 980 MPa while improving hole expandability and formability.
Controlled on-line cooling forms a bainite matrix in seamless steel tubes, cutting alloying and heat-treatment cost while avoiding cracking.
Top and bottom strip cooling is staged to reach target temperature while preserving flatness and improving strength and corrosion resistance.
Differently contoured cooling bar zones and independent flow control tailor coolant distribution across strip width to avoid uneven cooling damage.
Segmented cooling bar chambers and shaped partition walls tailor coolant flow across strip width to correct uneven metal temperature.
Variable-speed pumps replace valves in rolling mill cooling to cut pressure shocks, speed flow switching, and improve temperature control.
Predictive speed-pattern updates plus feedforward and feedback coolant control keep rolling material temperature within range during flying thickness change.
Double aging and controlled Cu-Ti precipitation raise strength, conductivity, and bending workability for automotive and electronic parts.
Low-dislocation-density bainite and controlled alloying help pressure vessel steel resist HIC after PWHT while maintaining 550 MPa tensile strength.
Width-divided spray zones and nozzle switching improve hot rolled steel sheet cooling uniformity across sheet width and rolling direction.
Dynamic pump pressure and bypass flow control improve coolant timing and precision in hot rolled metal cooling while cutting energy use.