Tubular Elements TRIZ Cases

Two-stage ingot homogenizing lowers deformation resistance, enabling complex multi-hole pipe extrusion from higher-scrap aluminum.

Controlled Mn/Si ratio and two-step homogenization precipitate fine AlMnSi phases, easing extrusion while preserving post-brazing strength.

Controlled alloy composition and two-stage homogenizing reduce extrusion resistance, enabling complex multi-hole aluminum pipes from scrap-rich billets.

Twisting a straight-grooved tube during diameter reduction forms accurate inner spiral grooves while limiting buckling, defects, and twist variation.

Varying filler content across a polymer heat exchanger wall improves heat transfer while preserving strength, low weight, and low-GWP refrigerant use.

A graphene interface layer bridges microscopic gaps between inner and outer metal tube components to improve heat transfer without higher cost.

Controlled Si-Mn alloy composition and grain structure improve single-layer brazing while preserving strength, corrosion resistance, and fin integrity.

Offset hole patterns and localized drainage features help an evaporator fin manage condensate while preserving heat-transfer surface area.

This tube uses partitioned micro-channels to balance heat transfer, pressure drop, and 340 bar burst resistance.

Corrugated metallic guide members use leading edge slit louvers to deviate fluid flow while maintaining structural integrity.

Angled fin bases frictionally secure within tube indentations to maximize contact area and heat transfer efficiency.

Cut and fold projections create cavities that enhance bubble formation, resolving manufacturing cost constraints while boosting heat transfer performance.

Additive manufacturing creates a monolithic tube with twisted vanes, resolving the contradiction between complex internal geometry and simple production.

Multi-edge ploughing and extruding forms discontinuous conical fins inside metal tubes to expand the heat transfer surface area.

Hollow frustum structures with sharp corners increase nucleation sites, resolving insufficient nucleate boiling performance at lower temperature differences.

Indenting spin-closed aluminum tube ends creates a concavity that pools low-viscosity braze alloy, preventing side flow and strengthening the joint.

Sharp cornered steps on the tube surface increase nucleation sites, resolving low temperature difference efficiency bottlenecks.