High Temperature Resistance Quartz Glass Torch with Good Electrical Insulation and High Light Transmittance for Laboratory Heating

Shengfan Quartz Glass Torch offers exceptional performance for glass blowing, laboratory heating, and blowtorch applications.

• High purity: SiO₂ > 99.99%
• Operating Temperature: 1200℃; Soften Temperature: 1730℃
• Excellent thermal stability
• Superior acid and alkali resistance
• High light transmittance
• Excellent electrical insulation properties

Quartz glass is an acidic material that is inert to all acids except hydrofluoric acid and hot phosphoric acid. It offers excellent acid resistance with better chemical stability than opaque quartz glass, and is non-hygroscopic and non-weathering.

Quartz glass provides high dielectric strength and low conductivity, maintaining excellent dielectric properties even at high temperatures, pressures, and frequencies. With minimal dielectric loss across applied frequency bands, it serves as an outstanding high-temperature dielectric insulation material.

Quartz glass features unique optical properties, transmitting both far-ultraviolet spectrum (making it ideal for UV-transmitting applications) and visible light with near-infrared spectrum. It offers high temperature resistance, minimal thermal expansion, excellent chemical thermal stability, and optical quality comparable to general optical glass.

The thermal expansion coefficient of quartz glass is exceptionally small—only 1/12 to 1/20 that of ordinary glass. Standard testing involves heating specimens to 1200°C and then rapidly quenching in cold water, with no cracking allowed after three repetitions.

Quartz glass exhibits superior mechanical properties compared to conventional glass and ceramics, though it maintains some brittleness. While theoretical strength reaches approximately 24*1.3 MPa, actual measured strength is significantly lower.

The relaxed structure of quartz glass allows certain gas ions to diffuse through the network even at high temperatures, with sodium ion diffusion being particularly rapid. This property is especially important for specific user applications.

Lianyungang Shengfan Quartz Product Factory specializes in research, development, and manufacturing of quartz plates, tubes, flanges, rings, cuvettes, and quartz instruments. Located in China's Crystal Capital—Donghai City, Jiangsu Province—the facility is 70 km from Lianyungang port with convenient transportation access.

Covering 1,000 square meters with over 30 employees, the company achieves annual sales exceeding USD 5.2 million. Guided by the philosophy of "Technology Orientation, Quality First, Integrity and Responsibility, Sustainable Operation," Shengfan Quartz is dedicated to establishing an international enterprise with standardized, sustainable operational capabilities.

We adhere to business integrity, extensive experience, competitive pricing, quality assurance, and excellent after-sales service. We sincerely welcome customers to discuss their requirements.