Hot-Dipping/Immersion Processes TRIZ Cases
- Coating Weight Control via Strip Position Estimation
A coating weight control apparatus estimates strip passing position changes to adjust nozzle positions for balanced coating.
- Zn-Al-Mg Coating Thickness Control via Gas Knife Optimization
Optimizing gas knife distance and alloy composition eliminates beach defects in Zn-Al-Mg coatings while preserving corrosion resistance.
- Galvanized Steel Sheet Surface Oxidation Control
Ti and Nb additions prevent Si, Mn, Al oxidation during annealing to eliminate bare spots and improve plating adhesion on 1000 MPa steel.
- Complex-Phase Steel Sheet Formability via Multi-Phase Microstructure
Ferrite matrix with dispersed martensite particles reduces yield ratio below 0.6 while maintaining tensile strength above 490 MPa for automotive panels.
- Air Knife Cleaning Tips with Elastic Movable Structure
Movable cleaning tips adjust position via elastic force to resolve the contradiction between gas jetting pressure uniformity and cleaning tip contact accuracy.
- Flux De-ironing via Free Jet Oxidation
Direct oxidant injection into sedimentation tank flux jet eliminates external mixers and prevents clumping during de-ironing.
- Steel Sheet Internal Oxidation Layer Suppresses LME Cracking
An internal oxidation layer on the steel sheet suppresses liquid metal embrittlement cracking during spot welding while maintaining hole expansibility.
- Hot Dip Galvanized Steel Strip Composition for Strength and Weldability
Optimized steel strip composition with boron and vanadium enhances mechanical strength and weldability.