Hot-Dipping/Immersion Processes TRIZ Cases

Controlled soaking, cooling, and Bs-Ms heat treatment create multiphase cold rolled steel with high strength, elongation, and line compatibility.

Controlled ferrite, martensite, and retained austenite fractions help coated cold-rolled steel combine high strength with formability and weldability.

A Zn-Si-Mg-Al coating forms a stable oxide layer during press hardening, preventing microcracks while preserving cathodic corrosion protection.

A Zn-Si-Mg metallic coating limits zinc oxide powdering during press-hardening while preserving cathodic protection and corrosion resistance.

A thin, non-uniform paint film with conductive pigment and lubricant preserves corrosion resistance while allowing welding and sliding.

Controlled carbon, boron, and cementite particle density improve drawn-can steel drawability while suppressing trimming burrs.

Controlled alloy composition and zinc coating improve spot-weld crack resistance in ultra-high-strength steel for automotive use.

Controlled martensite, bainite, and retained austenite help 1,470 MPa steel sheets resist cold-press cracking, delayed fracture, and LME.

A two-layer Zn-based plating structure balances adhesion and corrosion resistance while suppressing hexagonal surface patterns in hot stamped steel.

Rapid heating and staged cooling refine dual-phase Al-Zn or Al-Mg coated steel to improve strength, elongation, formability, and welding.

Rapid heating and staged cooling refine ferrite-martensite grain structure in 590 MPa dual-phase steel while cutting annealing time and energy use.

Controlled bainitic ferrite microstructure boosts hot-rolled steel strength while preserving formability, fracture toughness, and shearing.

Controlled coiling and region-specific cooling create ferrite-bainite thick steel with uniform strength, better shear quality, and lower crack growth.

A dual Al-based and Zn-Al coating lets automotive steel sheets keep galling resistance while enabling zinc post-processing without liquid metal embrittlement.

Controlling aluminum pre-coating thickness to 20-33 µm improves intermetallic alloying, weldability, and hot-stamping productivity.

Controlled soaking and cooling on existing annealing lines produce high-strength cold rolled steel strip with balanced elongation, formability, and weldability.

Lower-liquidus zinc alloy coatings let steel be coated and quenched together, preserving martensite or bainite while reducing carbon aging.

Controlled dissolved Nb and fine Nb precipitates help high-strength steel resist LME cracking during welding while preserving formability.

Limiting near-surface MnS groups, oxide inclusions, Mn segregation, and P/S content helps 980 MPa steel sheets resist delayed fracture.

Using annealing and coating parameters together, this case improves zinc coating weight prediction for steadier galvanized steel strip production.

Harder resin powder in a Zn-Mg-Al composite plated steel sheet blocks crack spread into the resin layer and preserves post-formation corrosion resistance.

Controlled alloy composition and internal oxide spacing suppress plating streaks, reduce die adhesion, and preserve strength and ductility.

A Fe-Al inhibition layer and controlled Zn-Mg-Al phases improve corrosion resistance, galling resistance, adhesion, and surface quality.

Controlling MA, soft α-phase, and retained austenite size distribution improves elongation, hole expansion, and crack resistance in steel forming.

Surface roughness variation and oversized particles help thin color films resist contact scratches while preserving durability and corrosion resistance.

Pre-heat treatment strengthens Al coating adhesion on thin stainless steel sheets, preventing exfoliation during corrugation while preserving oxidation resistance.

Controlled gas-nozzle wiping and ZnAl bath chemistry cut coating waviness, enabling thinner paint films and smoother automotive panels.

Controlled martensite-bainite texture helps steel sheets exceed 1.5 GPa while improving formability, shape accuracy, and embrittlement resistance.

Controlled grain boundary angles and Nb precipitates help hot-stamped steel exceed 1.5 GPa while resisting hydrogen embrittlement.