Hot-Dipping/Immersion Processes TRIZ Cases

A ferrite-martensite mix with at least 30% auto-tempered martensite helps hot-stamped steel balance strength, bendability, and crack resistance.

A bainitic steel composition and rolling route achieve 950 MPa strength while limiting microstructural variation, gauge inconsistency, and flatness defects.

Controlled annealing and zinc-alloy coating reduce grain-boundary cracking in hot press formed steel while preserving strength and ductility.

Transition-weighted coil scheduling reduces defects, scrap, and stoppages on continuous galvanizing lines while preserving product quality.

A nano-Zn phase in an Al-based plating layer improves chemical convertibility after hot stamping and suppresses spot-weld LME.

A multilayer Fe-Al-Si plating structure limits oxidation, cracking, and peeling during hot press forming while preserving corrosion resistance.

Movable masking plates and dual-side fluid cooling help control finish temperature and reduce upper-lower surface differences.

Small porous furnace supports let oxygen reach zinc-coated sheet steel during heating, reducing abrasion, efflorescence, and coating damage.

Controlled Mn-rich retained austenite and fine martensite dispersion help steel sheet balance ductility, hole expansion, bendability, and weldability.

A multilayer steel sheet uses a lightweight core and martensitic cladding to balance low density, cold formability, and chassis fatigue strength.

Controlled decarburization creates a low-carbon surface zone in aluminum pre-coated steel, improving hot-stamped toughness and VDA peak force.

Controlled Al distribution in plated steel suppresses zinc penetration and Cu-Zn alloying, improving spot-weld joint resistance to LME cracking.

A zinc-silicon-aluminum coating with controlled heat treatment limits liquid metal embrittlement during hot forming while preserving corrosion protection.

A three-part thermally press-fit connection distributes stress to prevent ceramic or carbon roll breakage while transmitting torque in molten metal baths.

Controlled heat treatment, transfer timing, and post-stamping homogenization improve hot-stamped steel strength without sacrificing cold bending toughness.

A controlled Fe3O4-rich oxide coating limits oxygen contact during quenching, suppressing decarburization and improving vehicle component fatigue life.

A multi-axis flexible electrode structure enables continuous glucose monitoring while reducing sensor breakage, tissue irritation, and discomfort.

Controlled alloy composition and martensite auto-tempering help hot-stamped steel combine 980 MPa-class strength with strong bendability.

Fine Ti precipitates and a tempered martensite-bainite structure help 980 MPa steel sheets retain ductility and fatigue resistance.

A ferrite-martensite steel sheet uses controlled surface and core microstructure to limit bend thinning while preserving rigidity at 980 MPa strength.

A recovered austenitic TWIP steel sheet uses controlled composition and recrystallized microstructure to raise strength while preserving elongation.

Controlled AHSS composition and multiphase microstructure limit liquid metal embrittlement cracks in Zn-coated resistance spot welds.

A ceramic bearing block with different inner and outer materials resists heat, wear, and metal penetration in submerged coating-line rollers.

Cold-rolled and annealed steel alloy balances elastic recovery and sidewall strength to improve rimfire cartridge extraction at lower cost.

A controlled FeAlSi inhibitive layer and low Kirkendall voids keep thin Al-Si hot-stamping coatings uniform and weldable.

Si and Sr in an Al-Zn-Mg coating limit oxide growth during hot press forming, improving spot weldability and cut-edge corrosion resistance.

Fine Ti precipitates in a tempered martensite-bainite steel sheet help balance 980 MPa strength, ductility, and fatigue resistance.

Controlled martensite, grain shape, and sulfide morphology help hot-rolled steel reach 980 MPa strength with ductility, toughness, and lower anisotropy.

Controlling aluminum distribution at the plated blank joint prevents segregation and preserves hardness after laser bonding and hot stamping.

A gradient organic-inorganic outer coating lowers sheared-edge strain and hydrogen-driven cracking in 1180 MPa press-formed steel.

Mg-containing oxide particles on an Al-Fe intermetallic layer improve post-painting corrosion resistance at welded lapped parts.

A Ni diffusion layer and controlled Mn segregation help 1780 MPa hot-pressed steel resist hydrogen-driven delayed fracture after welding.

Controlled heating rates equalize temperatures in overlapped hot-stamp blanks, suppressing warpage and improving transfer stability.

Controlled ferrite-martensite microstructure and heat treatment help high-strength steel sheets balance formability, toughness, and weldability.

Controlled Kirkendall voids in the plating layer trap diffusible hydrogen, improving embrittlement and paint corrosion resistance.

A Zn-Si hot-dip coating on press-hardening steel prevents liquid metal embrittlement while preserving corrosion protection and strength.

A low-Ti hot stamping steel uses Al, B, and alloy balance to avoid coarse TiN inclusions while preserving martensite hardenability and low-temperature toughness.

A multiphase steel sheet balances 1180 MPa strength with ductility, stretch-flangeability, delayed fracture resistance, and LME resistance.

Low-carbon surface layers block liquid zinc penetration during spot welding, reducing LME cracks while preserving galvanized steel strength.

A zinc-silicon alloy coating and pulsation spot welding break hard oxide layers on press-hardened steel while reducing splashing.

Controlled alloying and multiphase microstructure balance 1180-1350 MPa strength with formability and improved spot-weld LME resistance.

Controlled Mn segregation and ferrite-bainite-martensite balance suppress coarse HAZ martensite, improving weld strength and formability.

An inclined punch or die face preserves plating on sheared metal-sheet edges, reducing fracture area and improving cut-edge corrosion resistance.

Preheating the weld spot with controlled current raises iron in the zinc coating, suppressing LME cracks and improving weld strength and fatigue life.

A Zn-Al sacrificial coating doped with colloidal copper gives spring steel wire antibacterial action and corrosion resistance without hexavalent chrome.

Balanced martensite, bainite, retained austenite, and ferrite help cold-rolled steel reach ultra-high strength while preserving formability.

A two-layer aluminum alloy coating with controlled interdiffusion and crack density balances spot weldability with strong paint adhesion.

Controlled ferrite and hard-phase morphology helps cold-rolled steel reach 1180 MPa strength with uniform elongation and a yield ratio of 60% or less.

Fe enrichment in the Zn alloy layer suppresses liquid metal embrittlement cracking in galvanized steel spot welds without coating removal.

A textured Al coating with 3-30% SDR improves adhesive anchoring on hot-formed steel while preserving corrosion resistance and paintability.