Foundry Moulds TRIZ Cases

Segmented ceramic and sand cores form narrow internal passages under thermal shock, avoiding binder evaporation and disintegration during casting.

A sand core making machine regulates pressurized air flow using a control unit and flowmeter to optimize hardening conditions.

Controlled hot isostatic pressing prevents cellular gamma prime formation to preserve creep rupture life.

Porous insert cures sand into a bonded sprue structure, eliminating foam pyrolysis gas and oxide films in the flow path.

Segmented inner and outer mold layers resolve removal damage and porosity while maintaining structural integrity during casting.

High thermal conductivity molds cool molten copper alloys rapidly, reducing porosity and extending service life against heat damage.

A nickel-niobium intermetallic alloy with specific silicon and chromium ranges forms a cast microstructure of rod-like phases.

Replacing phenol resin with a sugar-based binder eliminates harmful gas emissions during thermal decomposition and simplifies demolding.

Tin-nickel-zinc alloy composition maintains mechanical strength and castability while minimizing lead content in water supply components.

Sugar surfactants modify alkaline resol resin binders to improve flowability, enabling complex core geometries while reducing binder emissions.

A rocker arm assembly anchors sand cores using linked levers, preventing movement during molten metal pouring.

Dimethyl carbonate ester carriers eliminate volatile organic compound emissions in foundry molds while preserving rapid drying times and coating adhesion.

A mold assembly integrates cooling duct geometry directly into the housing structure to eliminate separate core making procedures.

Two-layer oxide coating on metal riser tubes prevents aluminum sticking and extends service life in high-temperature casting.

Sand core positioning enables form-fitting coupling during casting, resolving shaping limits and connection reliability issues.

Brominated flame retardants combined with hindered amines prevent discoloration and corrosion during extrusion, preserving mechanical strength.

Sintered sodium chloride beads with kalinite binder form a preform that yields residue-free metal foam with 62 to 85 percent open porosity.

Segmenting the mold insert into a smaller second component allows equal heat treatment, reducing thermal stress and repair costs.

A 3D printed sand insert shapes pore structures in molten steel during casting to produce uniform metallic foams.

Thermal treatment at 200-400°C weakens binder cohesion without sintering sand grains, preventing abrasion and maintaining strength.

Cooling wax patterns to -70°C induces brittle fracture, allowing defect removal without damaging expensive ceramic cores during investment casting.

A binder composition uses 5-position-substituted-furfural compounds to enhance mold strength and hardening rate.

Segmented expendable salt molds enable demolding of complex electrical coils without draft angles, eliminating surface defects and reducing post-processing.

Segmented inner cores and separation elements enable demolding of long hollow amorphous metal tubes without surface damage or draft angles.

A casting device evaluates sealing properties by measuring ultimate pressure and pressure increase inside the cavity section.

Heat accumulator screens facing inward reduce heat loss and shrinkage, enabling reliable casting of thin trailing edges.

A foundry process preheats the mold in a main furnace and casts liquid metal at a controlled temperature difference.

Plasma peening forms hemispherical dimples on die cavities, resolving scoring and uneven release issues in complex casting geometries.