Hot-Dipping/Immersion Processes TRIZ Cases

A high-strength galvanized steel sheet uses a multi-phase microstructure to balance tensile strength and ductility.

An Fe-Al interfacial alloy layer blocks zinc permeation into the base steel, suppressing liquid metal embrittlement and microcracking during hot press forming.

Confined wiping nozzles spray low-oxidation gas on molten metal strips to reduce waviness, enabling thinner paint coats and higher painting productivity.

Internal oxidized layer covering crystal grain boundaries suppresses liquid metal embrittlement during spot welding of high-strength galvanized steel.

Segmenting the heating cycle into partial and full alloying stages reduces processing time and energy consumption while maintaining corrosion protection.

Tempered martensite steel sheet with stabilized retained austenite prevents carbide fracture points to achieve 1100 MPa strength.

Cold rolled steel sheet with controlled bainite and austenite microstructure achieves high tensile strength.

Sequential oxidation and reduction steps manage alloying element oxides to improve iron diffusion during galvannealing.

A galvanized steel sheet uses a composite microstructure of tempered martensite and ferrite to achieve high strength.

A layered Al-Zn alloy plating layer prevents hot sticking and microcracking in base steel sheets while maintaining corrosion resistance.

A metallic mesh body compressively supports sensor elements within a gas turbine fire detection system.

A chromium-free surface treatment composition uses polyurethane and acrylic resins to coat ternary hot-dip zinc alloy steel sheets.

A high-strength cold-rolled steel sheet with controlled ferrite, bainite, and martensite phases.

Metastable austenite transformation in steel sheets boosts yield strength ratio, resolving the trade-off between collision safety and cold press formability.

Controlling annealing dew points prevents manganese internal oxidation, ensuring high yield strength and exfoliation resistance in severe forming.

A galvanized steel sheet uses controlled inclusion distribution to enhance bendability and coatability.

Batch hot dipping flat metal sheets in molten zinc alloy before cold-forming prevents coating cracks and ensures full corrosion protection.

Applying a roughened metal coating to the brake booster housing improves sealing adhesion while eliminating paint damage risks during assembly.

Fluororesin films with group 4A metal cross-linkers resolve weather resistance and porosity issues in aluminum-plated steel sheets.

A steel sheet with a controlled Al-Fe intermetallic compound layer and ZnO surface coating improves formability during hot pressing.

Hot-rolled steel sheet uses controlled TiC precipitation to maintain high tensile strength while preventing workability deterioration.

Optimizes protective layer quality on anti-corrosion coatings during heat treatment to enable direct subsequent coating and joining operations.

A high strength steel sheet uses manganese-enriched retained austenite to deliver ductility alongside tensile strength.

A steel core wire coated with a copper-zinc alloy plating layer balances conductivity and discharge performance to increase machining speed.

A heat treatment process for coated steel sheets creates a martensite and bainite microstructure with retained austenite.

Sliding rack supports hold porous preforms via point contact to prevent deformation and enable batch infiltration of multiple parts.

Controlled manganese concentration profile in cold-rolled steel sheets ensures good coatability during galvanizing.

Austenite phase transformation and optimized post-working tool geometries reduce residual stress and prevent cracking in high-strength steel parts.

A high-strength steel sheet combines tempered martensite and fine ferrite phases to achieve superior mechanical properties.

A trivalent chromium surface treatment composition containing silane coupling agents and colloidal silica forms a protective layer on hot dip galvanized steel sheets.

A high-strength steel sheet with 80% autotempered martensite balances tensile strength and workability through controlled cooling.

A vertical annealing furnace uses a partition to separate atmosphere zones, reducing oxide formation on steel strips with easily oxidizable elements.

A hot-dip galvanized steel sheet with a fine-grained zinc plating layer improves surface finish and galling resistance.