Engineered to withstand 1100°C continuous thermal loads with low coefficient of expansion (5.5 × 10⁻⁷ /°C) and superior infrared transmission from 780 nm to beyond 3.5 µm.
Precision re-feeder containers and optical flange interfaces with ozone-free hot flame bending, cutting, and stress-relieved weld points.
Technical DataSemiconductor grade 99.9%–99.999% purity glassware designed for chemical refinement and aggressive vapor extraction baths.
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Ozone-free fused quartz double-tube right-angle assemblies featuring custom laser-cut junctions for tight HVAC/IR heat exchangers.
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Extreme temperature resistant UV-to-IR spectrum pipes for powder sintering, crystal growth furnaces, and specialized plasma reactors.
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Ultra-flat observation sight glasses providing exceptional optical insulation and full waveband transmittance across UV-Vis-NIR sectors.
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Fire-polished, hand-blown 99.999% silica chambers engineered with zero micro-bubble tolerances for localized thermal reaction observation.
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Ozone-free optically polished dome cells for photochemical research, photoelectrochemical testing, and IR-assisted degradation analysis.
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High melting point (1683°C softening point), Mohs 5.5–6.5 surface hardness, designed specifically for high-power infrared radiant panels.
Technical DataRooted in Donghai County—the world’s foremost crystal and high-purity silica raw material processing hub—Vulra Quartz eliminates middleman tiers, exporting industrial infrared plates to Quebec at direct factory pricing.
Certified by TÜV Rheinland with full RoHS and CE compliance. Every export lot comes accompanied by spectrometer certification verifying minimal hydroxyl ([OH-] < 20 ppm) to minimize intermediate infrared band dips.
Whether engineering an experimental infrared photothermal test stage for McGill or Concordia University laboratories, or fulfilling serial production runs for Saint-Laurent industrial ovens, our MOQ starts at 1 piece.
Montreal's industrial topography integrates aerospace machining, advanced composite consolidation, and high-density semiconductor photonics, demanding thermal glass solutions with uncompromising spectral precision.
In the Dorval and Saint-Laurent aerospace aerospace manufacturing hubs, carbon-fiber reinforced polymers (CFRP) require homogeneous, high-intensity radiative heating. Vulra’s polished IR quartz plates operate as clean non-contact radiant barriers, transmitting short-and-medium infrared waves directly to pre-impregnated resin matrices without thermo-mechanical distortion or outgassing.
Quebec’s aggressive expansion across the Bécancour-Montreal Battery Corridor relies heavily on high-speed infrared roll-to-roll electrode drying. Our large-format quartz plates prevent slurry contamination while maximizing IR radiation penetrance, operating stably up to 1100°C without risk of chemical corrosion from organic slurry solvents.
From the Technoparc Montréal to academic research benches at Polytechnique Montréal, our optical clear fused quartz plates (hydroxyl-reduced grades) function as high-temperature inspection sight windows, optical beam splitters, and mid-infrared thermal sensor substrate protectors unaffected by sharp thermal cycling.
| Performance Parameter | Vulra Semiconductor/IR Grade Quartz | Standard Borosilicate (Pyrex type) | Technical Implication for Montreal Manufacturers |
|---|---|---|---|
| Continuous Operating Temp | 1100°C (Short peak: 1450°C) | ≈ 450°C - 500°C | Critical for high-speed thermal drying ovens, thermoforming, and rapid flash-annealing lines. |
| Coefficient of Thermal Expansion | 5.5 × 10⁻⁷ cm/cm·°C (20°C–320°C) | 32.5 × 10⁻⁷ cm/cm·°C | Near-zero thermal expansion ensures zero micro-fractures during emergency line shutdowns or cyclic cooling. |
| IR Spectral Transmission (780nm - 3.5µm) | > 90% Uniform Radiance | Drops sharply beyond 2.2 µm | Maximizes radiant heating efficiency, significantly cutting electrical energy costs on Hydro-Québec industrial rates. |
| Softening Point | 1683°C | ≈ 820°C | Guarantees dimensional stability without sagging or bowing in high-load horizontal industrial conveyor ovens. |
A strategic breakdown of how supply-chain nearshoring, electrification, and carbon mandates are transforming the purchase criteria for industrial infrared glass.
With Hydro-Québec providing low-carbon, cost-effective hydroelectricity, industrial processors across Saint-Jérôme, Laval, and Longueuil are actively phasing out fossil-fueled convection ovens. Switching to electric infrared drying panels lined with high-transmittance fused quartz plates slashes process footprint by 40% while capturing significant provincial clean-energy incentives.
Modern photonic sintering and solar cell wafer processing reject traditional industrial quartz due to broad OH absorption bands around 2.72 µm. Montreal procurement teams increasingly require electrically fused natural quartz or synthetic silica that guarantees [OH-] content below 20 ppm, ensuring peak radiant transfer across the medium infrared curve.
Industrial oven builders in Quebec no longer settle for small modular tiles. The demand has pivoted toward seamless quartz panels exceeding 600 mm × 800 mm, cut to custom geometric profiles with diamond-drilled thermocouple ports, waterjet-milled steps, and CNC polished chamfers to simplify mechanical gasketing.
Operating out of Donghai's world-renowned quartz corridor, Lianyungang Vulra Quartz Products Co., Ltd. brings together end-to-end hot and cold quartz processing.
Direct access to first-grade Donghai natural silica crystal sand enables us to maintain trace metal concentrations below 15 ppm overall (Fe < 0.2 ppm, Al < 14 ppm), preventing thermal clouding, devitrification, and premature bubble lattice degradation under continuous 1100°C exposure.
Our Donghai plant combines precision diamond saw slicing, four-axis CNC edge profiling, double-sided optical planar polishing, ultrasonic core drilling, and oxy-hydrogen high-temperature flame annealing furnaces to relieve all residual shear stress before shipping.
Every fragile quartz plate undergoes ultrasonic de-ionized water cleansing and vacuum PE skin sealing before being suspended in custom high-density shock-absorbing EPE foam molds within reinforced fumigated timber crates, ensuring zero transit breakage to the Port of Montreal or Montreal-Trudeau (YUL) Air Cargo.
Clear, technical, and logistical answers to streamline cross-border ordering from our manufacturing facility to your facility floor.
Accelerate your project with factory-direct pricing, guaranteed 99.999% raw material purity, and fast transatlantic delivery. Upload your technical drawing, CAD specifications, or replacement part numbers today.
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