Hot-Dipping/Immersion Processes TRIZ Cases

Hot-rolled strip steel with ≥90 vol% ferrite resolves stretch flangeability trade-offs by maintaining an average hole expansion ratio above 50%.

Controlled ferrite and bainite microstructures in steel sheets resolve strength-formability contradictions, preventing edge cracking during cold pressing.

Displacing a cavity-equipped template between an infeed and a pneumatic outlet prevents smearing while enabling precise adhesive metering.

A humidity controller between acid and cleaning devices prevents press die adhesion while maintaining surface appearance.

An Fe-Al alloy layer and an MgZn2 layer prevent liquid metal embrittlement while maintaining plating adhesion.

Vacuum-deposited aluminum-magnesium alloy coating forms intermetallic phases to enhance surface protection on steel substrates.

A flow regulating member with horizontal plates and louvers changes trailing flow direction inside a hot dip coating tank.

Aluminum, silicon, and manganese suppress zinc evaporation and micro-cracking while maintaining cathodic protection.

Adding calcium and strontium to Al-Zn-Si-Mg baths alters oxide film properties, reducing top dross generation and improving coating surface quality.

Precise alloying and cooling control optimize plastic anisotropy to resolve the strength-formability trade-off in deep drawing applications.

Optimizing coiling temperature to 450-550°C balances phosphonation coverage with acceptable rolling forces, achieving high strength and formability.

Heating Ni-based coated steel sheets within a specific temperature range to produce hot-pressed members with enhanced coating adhesion.

A multiphase steel alloy composition expands the continuous annealing process window to ensure uniform mechanical properties across varying sheet dimensions.

Lower bainite and tempered martensite phases in hot rolled steel sheets resolve the trade-off between 1180 MPa tensile strength and stretch flange formability.

Maintain cooling water pH between 5 and 9 to prevent precipitate formation that deteriorates heat exchangers in metal coating lines.

Sintering zirconia-based ceramic particles reduces crack formation and improves thermal cycle properties in high-temperature gas turbine applications.

Tempering as-quenched martensite into tempered martensite resolves the trade-off between tensile strength and post-bending toughness in automotive steel sheets.

Radiation thermometers measure steel sheet radiance to calculate emissivity for precise alloyed position tracking.

Controlled temperature differences between sub-regions prevent zinc coating damage while achieving tailored strength distribution.

Optimized hot-rolled steel sheet with Ti and V carbides achieves high tensile strength.

A hot-rolled steel sheet uses precise alloying to achieve high tensile strength while maintaining ductility.

A high strength steel sheet balances tensile strength and ductility through controlled ferrite, martensite, and retained austenite phases.

Inert atmosphere heating prevents zinc smoke pollution and oxidation while reducing energy loss during flux-free batch hot-dip coating.

Silicon addition prevents carbon loss during reheating, preserving austenite and achieving high strength with 700 MPa tensile capacity.

Reducing silicon below 1.2 wt% and adding magnesium suppresses intermetallic layer growth, resolving brittle coating issues in hot-dip processes.

A high-manganese steel production method utilizing controlled chemical composition and thermal processing to establish a multi-phase microstructure.

A clad plate joins aluminum and hard metal plates via a nickel layer that extends beyond the rear end surface to ensure robust bonding.

Composite Zn-Mg-Al coatings prevent cracking during hot forming while maintaining corrosion protection for automotive components.

Hot pressed zinc-plated steel uses a magnesium oxide outer layer to prevent aluminum oxide formation, ensuring reliable phosphate coating adhesion.

A surface-treated galvanized steel sheet uses a specialized organic coating to suppress hydrogen entry and prevent delayed fracture.

A hot-pressed steel part achieves 1500 MPa tensile strength through a martensite and retained austenite microstructure.

A Zn-Mn alloy coating prevents liquid metal embrittlement and tool adhesion during hot forming by maintaining a high melting point.

Bending nozzle lips with a moment generating unit adjusts the air gap to maintain coating weight uniformity on steel plates.

Fluoride-controlled Zr-Ti bath masks aluminum ions to prevent sludge, enabling one-step conversion treatment of steel-aluminum composites.

Segmented wiping nozzles create a V-shaped groove that traps splashes, preventing edge over-coating and surface quality deterioration.

Controlled inclusion group spacing reduces bending fractures while maintaining high strength.

A zinc-phosphate coating prevents oxidation and zinc evaporation, maintaining low contact resistance for reliable spot weldability.

A zinc hydroxychloride conversion layer protects ZnMg coated steel surfaces from blackening and tarnishing during storage.

Alternating magnetic fields at the vessel transition prevent melt mixing and ensure stable layer formation during low-speed hot-dip coating operations.

Precise control of carbon and alloying elements achieves high elongation and strain hardening exponent values without excessive titanium or niobium usage.

Flat steel product heat treatment achieves high tensile strength through controlled austenitisation and partitioning.

A hot-dip galvanized steel sheet containing ferrite and residual austenite enhances formability through transformation-induced plasticity.

A hot-dip coating roller uses a gas-permeable ceramic plug to seal internal cavities and plain bearing coatings on annular elevations for lubrication.

A ferrite-martensite steel sheet with optimized alloying elements provides high tensile strength and ductility.

Preheating galvannealed steel sheets before forming prevents coating debonding and oxidation, ensuring high surface quality in final parts.

Pre-coated ceramic fiber enters liquid titanium bath to form a wettable interface for metallic sheath deposition.

Laser triangulation measures actual nozzle-to-strip distance profiles to correct skewness and crossbow variations in hot dip galvanizing lines.

A method fabricating multi-level timepiece components using UV-LIGA combined with hot stamping to shape resin layers for electroplating.