Hot-Dipping/Immersion Processes TRIZ Cases

Reduction annealing removes iron oxide skin from cast strips, eliminating pickling steps to save energy and boost metal recovery.

Steel sheet with controlled retained austenite carbon concentration gradients enhances elongation and V-bendability.

Optimized alpha and gamma fiber textures in high-strength steel sheets maintain body rigidity while reducing weight.

A coated steel sheet uses a polyester resin monolayer film to enhance bending workability and electrical conductivity.

A high-strength steel sheet with controlled martensite and retained austenite fractions.

ZnMgAl alloy bath composition prevents binary eutectic formation during solidification, ensuring homogeneous surface quality and corrosion resistance.

Refractory ceramic coatings on steel rolls withstand chemical attack from molten metal, extending service life in hot dip coating lines.

Hot dip coated steel uses a ferrite matrix with controlled vanadium precipitates to balance strength and ductility.

A ZnAlMg coated steel sheet production method uses a controlled gas nozzle to wipe the metal coating during solidification.

Precise phosphorus and sulfur composition control resolves the trade-off between surface quality and workability in cold-rolled steel production.

A galvannealed steel sheet uses controlled heat treatment to adjust phase fractions and grain morphology for improved mechanical properties.

Nickel-chromium coatings bond to steel oxides without pickling, resolving the trade-off between process efficiency and coating adherence.

Internal oxidation of Si and Mn in the surface layer prevents external oxidation defects, ensuring excellent coating adhesion on high-strength steel.

A steel sheet with retained austenite and annealed martensite improves hole expandability.

A coated flat steel product with a controlled boundary layer ratio of silicon, manganese, and chromium to ensure coating adhesion.

Monitoring CO concentration in the soaking zone atmosphere to control decarburization layer thickness and maintain tensile strength.

Composite microstructures combining ferrite ductility with martensite strength resolve the tensile strength versus formability trade-off in automotive steels.

Automated system evaluates structural steel geometry against criteria to prevent air pockets and corrosion risks during fabrication.

A zinc alloy plated steel material with a double-layered interface structure enhances weldability and corrosion resistance.

An aluminum alloy coating with specific Mn, Mg, and Fe content boosts corrosion resistance in acidic media while maintaining ductility during hot forming.

Tin-plated steel sheet applies a phosphate and tin oxide film to resolve wet storage adhesion failures while cutting manufacturing costs.

Acidic flux containing zinc chloride and surfactant prevents aluminum oxide formation, eliminating uncoated spots on high aluminum steel.

Controlled silicon and manganese levels in high-strength galvanized steel prevent oxide formation and hydrogen accumulation, eliminating bare-spot defects.