Glass Making Apparatus TRIZ Cases

A two-stage thermal stretching process limits deformation of anti-resonant blanks and preserves cross-section geometry in hollow-core fiber preforms.

Thermally stretched oval ARE preforms simplify hollow-core fiber assembly while improving element positioning and reducing optical leakage.

Prefabricated oval ARE preforms enable accurate sheath-tube placement, reducing soot-related deviations, optical leakage, and attenuation.

Specific oxide ratios and a 90°C+ forming-liquidus gap enable high-modulus glass fibers with stable fine-count production and lower thermal load.

Active pressure control through inserted capillary tubes stabilizes hollow-core cane drawing, reducing dimension variation and material loss.

A two-stage thermal drawing sequence uses a low first draw ratio to keep antiresonant elements positioned and prevent preform deformation.

Cyclic core variation creates continuous fiber sections with transition zones to cut insertion loss, reflection, waste, and specialty fiber cost.

An intermediary transmission box decouples the drive and shaft, simplifying mineral wool fiberizer maintenance while enabling higher rotor speeds.

Externally heated air replaces part of burner heat in fiber mat curing, cutting gas use 50% to 70% while keeping oven safety and polymerization.

Lowering tensile stress to 20 MPa or less in the outer cladding helps multicore fiber match single-mode rupture strength.

Curved inner and outer anti-resonance elements joined at two lines keep large hollow-core fiber preforms stable during drawing for low attenuation.

Adjusted SiO2, Al2O3, MgO, and CaO ratios raise fiberglass strength while keeping fiberizing temperature below 2,500°F and limiting devitrification.

Using slit apertures below half the operating wavelength, this PCVD resonator suppresses mode hopping and improves quartz deposition uniformity.

By fusing glass and ceramic materials with different CTEs into one fiber, this case shows how thermal stress can be managed for durable hermetic seals.

A two-core refractive index profile offsets the OVD center line dip to cut bend-induced attenuation and improve signal confinement.