Hot-Dipping/Immersion Processes TRIZ Cases

Heating Zn-coated steel to 750°C then cooling the surface below 400°C creates a temperature gradient that prevents liquid metal embrittlement cracking.

Controlled oxidation creates internal oxide layers that prevent surface silicon oxide formation, preserving TRIP microstructure stability during galvanizing.

Angled gas wiping nozzles suppress bath wrinkles by controlling impact pressure distribution and preventing viscosity unevenness.

Heat treatment reduces hydrogen concentration in plated steel sheets to prevent edge cracking during slitting and coiling.

Martensite-ferrite steel sheet maintains high solute manganese concentration in the ferrite surface layer to boost fatigue resistance.

Precise silicon control prevents tiger stripes while maintaining coatability and surface quality in hot dip galvanized steel.

A high-strength steel sheet with controlled martensite and metastable carbides achieves 1180 MPa tensile strength.

A polyester resin composition with controlled molecular weight and glass transition temperature enhances press workability and surface quality on coated steel sheets.

Aluminum and magnesium in the zinc coating bridge incompatibility with high alloy steels, ensuring full wettability and consistent corrosion protection.

A cold-rolled steel sheet achieves high tensile strength through a partitioned martensite and bainite microstructure.

An alloy layer suppresses iron diffusion and enhances adhesion, resolving chipping risks in mechanical processing applications.

A front and rear moving air knife module adjusts plating distance on steel sheets using rotatable gas transferring pipes.

Optimized zinc alloy plating with controlled magnesium and aluminum content creates a multi-phase coating structure for enhanced surface finish.