The Hydroxyl Content of the Quartz Tube for Curing Lamps is Below 1 ppm

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.

Multiple transparent quartz tubes for 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.