Calenders TRIZ Cases

See how a pivoting calender frame pre-positions alternative top rolls to enable rapid temperatu

See how external heating of rotating bodies enables efficient sheet formation with fewer heat r

See how an external heat roller heats rotating rollers from outside to compress fiber-resin she

See how a hard roll forming two nips at angles under 180° with soft rolls enables independent l

An angled two-nip calender uses a heated hard roll and independent line-force control to cut soft-roll thermal stress and material loss.

Air pressurization in the oil return line blocks moist air and contaminants at lubrication points, reducing corrosion and oil replacement.

A movable permanent magnet brake stops slitter-winder idler rolls without contact, cutting wear, maintenance, and web-break downtime.

A movable permanent magnet brakes slitter-winder idle rolls without contact, cutting wear, maintenance, and web-break downtime.

A segmented base body and support body with a mounting structure simplifies extended nip press manufacturing and enables faster on-site replacement.

Reverse roller motion shifts peel-off fiber debris to a cleaner, preventing web transport blockage during continuous fiber body production.

A rigid metal base with an elastic polymer cover forms an extended nip that improves dewatering while reducing wear in paper machines.

Bio-based polymers and recycled glass in roll covers cut fossil material use while preserving mechanical performance in fibrous web production.

Precalender cooling with 200 ms dwell time stabilizes temperature to minimize reeling faults and reduce raw material usage.

A drive control method adapts setpoint velocities to compensate for elastic deformation of roll elements during contact.

Runner calendar smoothing reduces mottling in thermosensitive recording materials by controlling contact pressure.

Segmented filler systems in roll covers resolve the trade-off between high abrasion resistance and low surface roughness.

A secondary treatment roller assumes processing duties while the primary unit shifts to a parking position.

Embedded reinforcing profiles in an elastic support body enable controlled expansion against a counter-roll, reducing edge wear and uneven load distribution.

Embedding fiber optic sensors in the central roll measures pressure distribution across multiple press nips, eliminating complex multi-roller installations.

Welding profiling screens to baffles creates a rigid drop-out cartridge that prevents pressure-induced flexing and leakage while allowing quick cleaning access.

Segmenting the base and topstock layers resolves trade-offs between durability and sheet release while the hydrophobic coating repels water swelling.

Pre-cooling fiber webs below 40°C before calendering preserves bulkiness and prevents brightness loss during reeling.

Moisturizing evaporative cooling treats fiber webs before calendering to maintain middle layer elasticity while improving surface smoothness.

Replacing elastic cushions, this fluid-loaded system eliminates stick-slip wear while enabling adjustable pressure profiles for extended nip durability.

Surface-modified nanometer filler particles prevent agglomeration in resin matrices, maintaining roll cover smoothness and abrasion resistance.

A suction roll sealing strip uses segmented material sections to optimize abrasion resistance and elasticity for reliable frictional contact.

Luminescent markers in the press jacket reveal polymer layer tears, preventing lubricant leakage and unplanned downtime.

Intermediary mounting component enables precise positioning of add-on elements on existing roller stands without re-machining.

A pneumatic deflection compensation system uses aerostatic bearings to reduce friction and energy consumption in rotating rolls.

Beveled working surface and dual pressure chambers create progressive pressure profile that prevents secondary peaks and reduces paper web re-wetting.

Segmented drilling protects embedded sensors from damage while maintaining precise positioning.

Separate fluid circuits isolate bearing lubrication from rotary seal cooling, preventing seal cracking at high operating temperatures.

A transport apparatus adjusts heating roller rotation speed based on sensor timing to stabilize web movement.

A roll cover matrix incorporates three filler sizes to enhance mechanical resistance and surface finish.

Carbonate-containing polyols in the polyurethane layer improve hydrophobicity while maintaining wear resistance and flexibility under load.