High-Purity Milky Quartz Tubes for Semiconductors and Photovoltaics-Mia
2026/09/12
High-purity milky quartz tubes are opaque fused silica products with SiO₂ purity ≥99.99%, produced via a special foaming process with uniform internal micro-bubbles. Compared with transparent quartz and ordinary glass tubes, they possess unique infrared radiation capability, excellent thermal stability and chemical inertness, widely used in industrial heating, semiconductors, photovoltaics and precision manufacturing.
Milky quartz tubes excel in high-temperature resistance and far-infrared thermal radiation. Featuring a melting point of 1730°C and a sustainable working temperature up to 900°C, they withstand long-term high-temperature operation. Their micro-bubble structure delivers over 90% far-infrared emissivity in the 5–13 μm range and below 8% visible light transmittance, enabling uniform and efficient heating. With low thermal expansion, they also resist thermal shock, avoiding cracking and deformation under drastic temperature changes.
Chemically, these quartz tubes feature superior inertness and corrosion resistance. They remain stable against most acids, organic solvents and corrosive gases, only susceptible to erosion by hydrofluoric acid and hot concentrated alkalis. Their high-purity composition prevents impurity precipitation and secondary contamination, ensuring stable and long-lasting performance in harsh high-temperature and corrosive working environments.
Combining excellent thermal, optical and chemical properties, milky quartz tubes serve diverse industrial applications. They are core components for far-infrared heating equipment and industrial furnaces to boost heating efficiency. In semiconductor and photovoltaic industries, they act as high-temperature furnace liners and protective sleeves, providing stable thermal fields for wafer processing and crystal growth. They are also commonly used in laboratory high-temperature devices and metallurgical processing systems.
Manufacturers support fully customized processing services, including customized outer diameter, inner diameter, wall thickness, length, aperture and notch processing, as well as tailored opacity and surface treatments to meet diverse industrial technical requirements. Industry analysts indicate that with the continuous upgrading of high-end manufacturing, energy-saving heating technology and semiconductor precision processing industries, the market demand for high-performance high-purity milky quartz tubes will maintain steady growth, presenting broad application prospects in the advanced industrial material sector.
