The Hydroxyl Content of the Quartz Tube for Curing Lamps is Below 1 ppm
QC-01: Quartz tube for curing lamps
The quartz tube for curing lamps has excellent ultraviolet transmittance, significantly enhancing the efficiency of effective spectral utilization. Using high-purity materials (hydroxyl content below 1 ppm) and through strict cleanliness control, it ensures stable and continuous operation under high temperature, high pressure, and high power conditions.
Widely used in ultraviolet curing processes, it can quickly initiate chemical reactions and efficiently cure various special coatings, paints, inks, adhesives, and 3D printing materials, making it an ideal choice for various curing lamps.
Common Specifications
| Outer Diameter Range | Outer Diameter Deviation | Wall Thickness Range | Wall Thickness Deviation | Maximum Ovality | Maximum Deviation | Maximum Bending | |
|---|---|---|---|---|---|---|---|
| CL-1 | 3< Ф ≤10 | ±0.1 | 1–2.0 | ±15% | 0.02 | 0.12 | 0.0015 |
| CL-2 | 10< Ф ≤20 | ±0.2 | 1–2.5 | ±15% | 0.0125 | 0.12 | 0.0015 |
| CL-3 | 20< Ф ≤30 | ±0.25 | 1.5–3.0 | ±15% | 0.0125 | 0.12 | 0.0015 |
| CL-4 | 30< Ф ≤40 | ±0.35 | 1.5–4.0 | ±15% | 0.0125 | 0.12 | 0.0015 |
| CL-5 | 40< Ф ≤50 | ±0.2 | 2.0–4.0 | ±15% | 0.0125 | 0.12 | 0.0015 |
Mechanical and Thermal Properties
| Density (20 °C kg/m 3) | Coefficient of Thermal Expansion (200-300 °C -1) | Softening Point (°C) | Annealing Point (°C) | Deformation Point (°C) |
|---|---|---|---|---|
| 2.2 × 103 | 5.6 × 10-7 | 1670 | 1210 | 1110 |
Features
- High ultraviolet transmittance. The transmittance in the UVA, UVB, and UVV ranges is 90%–94%, and the transmittance for UVC is 85%–90%.
- High temperature resistance. It can withstand ultra-high temperatures up to 1100 °C (2012 °F) without melting.
- Low thermal expansion. Due to minimal expansion, it does not easily crack or break due to rapid temperature changes.
- Chemical resistance. Quartz is chemically inert, resistant to most acids and corrosive substances, making it durable in harsh environments and very suitable for chemical processes.
- Excellent insulator. Non-conductive makes it very suitable for high voltage or electronic applications.
- Low hydroxyl content. Quartz glass with low hydroxyl (OH) content (typically below 1 ppm) minimizes ultraviolet absorption, enhancing its performance in ultraviolet applications by reducing unnecessary absorption losses.
- Heat resistance. Quartz can withstand high temperatures (up to 1000 °C or higher) without significantly altering its performance, making it suitable for high power ultraviolet lamps and systems operating under extreme high temperatures.
- Optical clarity. Quartz glass provides excellent optical clarity in the ultraviolet spectrum, ensuring that ultraviolet light is transmitted effectively without distortion or scattering.
Applications
Installed between the ultraviolet lamps and substrates in ultraviolet curing systems, it can filter out infrared (IR) radiation and prevent overheating of the system and substrates, while allowing most ultraviolet radiation to pass through.
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