Hot-Dipping/Immersion Processes TRIZ Cases

A zinc alloy plated layer stabilizes the Zn single phase to maintain surface quality during hot-dip galvanizing.

A segmented gas wiping nozzle maintains a constant slit gap in high temperature atmospheres using ceramic or carbon-based materials.

Nickel preplating prevents nonplating defects on steel sheets during rapid heating and hot-dip galvanization.

Controlled martensite and ferrite grain sizes in a high-strength steel sheet prevent springback variation and part twisting during automotive forming.

Localized boron enrichment strengthens grain boundaries to resist delayed fracture while maintaining low bulk content for coatability.

Al-based protective coating with alkaline earth metals forms a surface oxide layer during hot forming.

A high-strength steel sheet composition controls residual austenite volume fraction to improve ductility.

A hot-rolled steel sheet combines a bainite matrix with elongated martensite to achieve high tensile strength.

Controlled oxidation treatment forms a specific oxide film on galvannealed steel sheets to ensure stable zinc coating adhesion.

Vapor deposited diamond-like carbon withstands 700°C temperatures and hot metal contact, reducing maintenance costs for galvanizing bath parts.

Microalloyed austenitic steel achieves high tensile strength while resisting delayed cracking through controlled hydrogen diffusion and barrier layers.

A galvanized steel sheet stabilizes retained austenite and tempered martensite through precise chemical composition and heat treatment.

A partitioning indicator displacement assay uses a lamellar phase interface to move an organic indicator into an aqueous analyte solution.

Refractory ceramic coatings on snout tips extend service life by resisting dissolution and abrasion in hot dip coating lines.

A cylindrical probe with controlled immersion depth and angle stabilizes plasma emission intensity during laser spectroscopic analysis of molten metal baths.

Quenched steel sheet maintains retained austenite to balance tensile strength and formability in automotive structural members.

Rolled steel foil receives a textured nickel plating layer to serve as a robust current collector substrate.

Electromagnetic induction anneals cold-rolled steel sheets while melting metal coatings, eliminating redundant heating steps and reducing energy consumption.

A batching and scheduling method for steelmaking production uses mathematical modeling to optimize batch composition and sequencing across parallel equipment.

Applying a ZnO wurtzite crystal coating to aluminum-plated steel prevents uneven plating thickness and Al-Fe alloy formation, improving formability.

Zinc alloy plated steel sheet uses segmented Zn single phase and intermetallic compounds to resolve phosphatability versus spot weldability trade-offs.

A composite armouring wire structure joins magnetic and non-magnetic steel segments to manage heat generation across submarine cable sections.

A two-stage heat treatment process transforms cold rolled steel strips into carbide-free bainitic ferrite to achieve high tensile strength.

A galvanized steel sheet reduces burr height through controlled ferrite and pearlite phase ratios.

A conversion layer on zinc-coated steel uses zincsulphate hydrate and aluminium to improve adhesion.

Gallium indium eutectic diffuses through grain boundaries to overcome stable oxide coating barriers for reliable hydrogen fuel production.

An aluminium oxide cover layer on Al-Si-Fe steel coatings prevents furnace roller damage and welding issues while maintaining corrosion resistance.

Specifying 1.8-2.3 mm thick steel with 20% elongation prevents cracking during swaging and hydraulic expansion.

A dual-phase steel sheet uses polygonal ferrite strengthened by titanium carbides to achieve high tensile strength and uniform elongation.

Applying chromium slurry to specific sections of internal passages resists hot corrosion while maintaining efficient airflow through complex geometries.

Vacuum furnace diffusion treatment creates metallurgical bonding between coating and substrate, preventing flaking under marine stress.

Mechanical surface roughening adjusts zinc layer thickness on steel, overcoming barrier layer limits in hot-dip galvanizing.

Optimized chemical composition and cooling rates produce fine carbides that maintain tensile strength while preventing burring defects in automotive parts.

Drain holes in the connecting section release trapped pressure to prevent explosive failure while maintaining structural integrity.

Selective austenitization of steel components using contoured radiating elements prevents dimensional instability from uneven cooling.

Acid or mechanical surface treatment removes magnesium oxide layers from Zn-Al-Mg coatings, preventing dewetting and dulling during storage.

Nitrogen and hydrogen reduction annealing suppresses silicon and manganese oxidation on steel substrates, eliminating bare spots during hot-dip galvanizing.

Distance sensors feed real-time data to electromagnets that counteract strip vibrations, preventing uneven zinc coating in galvanizing plants.

A continuous galvanizing apparatus cycles liquid zinc through adjacent tubes to coat multiple rods simultaneously.

A metallic particle-deposition substrate creates a heterogeneous interface with evenly dispersed nanoparticles to generate surface plasmon resonance.

Controlling gamma and gamma1 layer thickness ratios prevents plating separation during working while maintaining 980 MPa tensile strength.

A steel sheet uses a localized ferrite and retained austenite surface layer to resolve the contradiction between ductility and hole expansibility.

Laser irradiation removes zinc oxide films from hot-stamped galvanized steel, enabling direct phosphate crystal deposition for improved coating adhesion.

A steel sheet with 95% martensite and controlled precipitates achieves high tensile strength.

An oxide layer on galvanized steel reduces sliding resistance during forming.

A galvanized steel sheet with controlled carbon and microalloying achieves 1180 MPa tensile strength through a composite bainitic ferrite and martensite structure.

Integral retaining features secure cast-in-place valve seats in the core box, preventing leakage and wear caused by thermal expansion mismatches.