Hot-Dipping/Immersion Processes TRIZ Cases

An array of sensors detects seismic source events by analyzing waveform data to identify the arrival of P-waves and S-waves, calculating epicentral distance and back azimuth.

Optimized ZnAlMg composition eliminates nickel to prevent contact corrosion, reducing cracking during severe bending of pre-painted steel sheets.

Pre-plating wire before forming grooves maintains holding power by preventing zinc accumulation in fastener spaces.

Segmented heating zones enable tailored heat treatments, resolving the contradiction between production throughput and process flexibility.

A trivalent chromium surface treatment composition forms an inorganic film on galvanized steel sheets.

Rapid quenching refines crystal grains in a hot-rolled steel sheet, resolving the trade-off between high tensile strength and formability.

A two-step acidic aqueous treatment uses linear polymers to stabilize metallic surfaces.

A non-oriented magnetic steel sheet uses a manganese or vanadium concentration gradient to increase surface electrical resistance.

Optimized microstructure balances tensile strength and ductility to resolve resistance weldability degradation in automotive applications.

Tempered martensite microstructure in flat steel eliminates residual austenite to resolve hole expansion deterioration while maintaining tensile strength.

Specific support roll diameter ratios and vertical axis spacing prevent surface scratches and defects on the steel strip during continuous hot-dip plating.

A cold-rolled steel sheet combines high temperature range forming bainite with low temperature range forming bainite and residual austenite.

Interposed thermoplastic resin layers bond metallic members to fiber-reinforced composites, achieving shear strength above 0.8 MPa.