Hot-Dipping/Immersion Processes TRIZ Cases

Fine Ti carbide precipitates in a ferrite matrix raise tensile strength above 570 MPa while preserving punching workability and stretch-flange formability.

Nitridating molten aluminum on AlN substrates creates single-crystal layers that enhance heat transfer while preserving electrical insulation.

Gas-filled hollow rollers eliminate hydraulic pumping losses and slippage by reducing mass moment of inertia.

Nickel-iron alloy slush mold shell with nitrided surface texture reduces thermal stress and extends mold life during automotive rotomolding.

Optimized Ti and N contents prevent slab cracking during casting while batch annealing concentrates manganese in retained austenite for superior ductility.

Persulfate bath accelerates metal sulfur alloy deposition, eliminating slow conventional rates and toxic reagent requirements.

Hot-rolled flat steel achieves high local cold formability through controlled bainitic microstructure and alloy composition.

Composite microstructure with controlled phase fractions resolves the contradiction between tensile strength and ductility in automotive steel sheets.

Specific Ti, Sn, and B additions modify surface oxides to improve wettability, preventing delamination in high-manganese steel galvanizing.

Direct quenching microalloyed hot-rolled steel strips below 400 C before continuous annealing maintains alloy elements in solution.

Tempered martensite and retained austenite in galvanized steel sheets resolve the weight-strength trade-off by maintaining formability during crash events.

A high-strength steel sheet achieves 1470 MPa tensile strength through controlled martensite lath density.

Martensite and residual austenite at grain boundaries resolve the strength-formability trade-off in automotive steel sheets.

A high-strength galvanized steel sheet achieves 590MPa tensile strength through controlled ferrite and martensite phase distribution.

Specific inclination angles prevent galvannealed layer peeling during sliding operations while maintaining corrosion resistance.

Zn-Al-Mg-Ca plated steel sheet balances planar corrosion resistance and coating adhesion through optimized Ca addition and phase structure control.

External slot openings on the nozzle wall maintain the flow cross-section while removing zinc vapor to prevent strip damage.

Laser heating transforms microstructure to martensite, eliminating insulation steps and reducing process complexity.

A two-layer Al-Zn coating suppresses blistering by forming Si-Ca compounds, resolving contradictions between interfacial alloy control and corrosion resistance.

Controlled drying excludes hydroxysulphate and free water from the zincsulphate layer, preventing adhesive degradation.

A basecoat composition with an aluminium phase forms a protective layer on gas turbine substrates through controlled thermal activation.

Al-Zn-Si-Mg alloy coatings minimize red rust staining in acid rain by blocking corrosion pathways through controlled microstructural parameters.

Austenitic steel sheet with controlled microstructure resolves weight reduction trade-offs in automotive structural parts.

Adding copper to molten silver during high-pressure water atomization reduces carbon impurities and prevents agglutination.

Internal oxidation forms multiphase steel that balances tensile strength and ductility for complex automotive parts.

Optimizing phase fractions in a steel sheet balances tensile strength with elongation and hole expandability.

Multi-phase steel sheet with controlled ferrite and martensite fractions prevents liquid metal embrittlement during resistance welding.

Vacuum-evaporated multilayer plating deposits amorphous magnesium between zinc layers to prevent black staining and improve adhesion.

A cold-rolled steel sheet achieves high strength through a composite microstructure of acicular ferrite and retained austenite.

A steel plate with retained austenite and annealed martensite achieves high yield strength and elongation.

A high strength steel sheet achieves 1180 MPa tensile strength through controlled tempered martensite formation.

Segmented nozzle system stabilizes airflow to resolve the contradiction between flow stability and wiping efficiency in commercial galvanizing lines.

A steel sheet with 95% ferrite microstructure achieves enhanced formability through controlled alloying and annealing processes.

Controlled tau phase thickness and Fe-Al-Si ratios minimize mold adhesion while maintaining plated layer strength.

Dual-phase microstructures with retained austenite resolve the contradiction between tensile strength and bendability in 1,400 MPa cold-rolled steel.

ZnFeO film on galvanized steel plateau reduces sliding resistance, improving press-formability and bondability.

An activated steel coating with phosphorus, sodium, and titanium enables faster heating during hot forming.

A steel sheet with controlled solid-solution carbon strengthens grain boundaries to improve yield strength.

Asymmetric zinc coating reduces liquid zinc-induced cracks in hot-formed steel while maintaining corrosion protection.

Controlled oxidation treatment prevents internal oxidation of silicon and manganese in high-strength steel, ensuring stable coating adhesiveness.

A rolling-mill stand equipped with a thickness gauge adjusts reduction in real time to achieve precise final dimensions on hot-dip coated steel strip.

Mn-containing inclusions with Mn oxides trap hydrogen atoms, securing embrittlement resistance after perforation without complex control.

A ferrite steel sheet disperses alloy carbides to enable warm stamp formability without long die holding times.

Water dispersible organic resin and ZnO dispersion form a stable coating on plated steel sheets, resolving waterproofness and solvent resistance trade-offs.

Controlled oxidation temperature based on silicon and chromium content prevents bare spots and improves coating adhesion.

An intermediary insert prevents brittle intermetallic formation during spot welding of dissimilar metals.