Opaque Quartz Tubes & Milky White Quartz Tube

The raw material of opaque quartz tube is from white quartz sand which the purity of SiO 2 is over 99.95%. In order to achieve the best performance of materials, it is necessary to increase the number of air bubbles and reduce the volume of  air bubbles as much as possible in production.

Opaque quartz tube (milky white quartz tube) can absorb infrared spectrum of less than 4U wavelength by itself, which increases the heat radiation of the tube itself, and the emissivity of the tube can reach more than 90% in the 5-13U far infrared band. This provides the most efficient selective absorption heating element material for heating and drying substances (generally having strong absorption in the 3-25u region). This performance is different from other infrared materials. Prepared. High quality opaque quartz tubes are made of high purity quartz are produced in a stable size with many excellent parameters.   

Major Uses:

* Far Infrared Baking

* Application of High Temperature Thermocouple

* High Temperature Electric Furnace Heating

* Industrial Drying/Heating Applications

* For example: heater, sterilizer, microwave oven, electric oven, etc.

Fused Quartz Glass Features:

Fused quartz glass is a special industrial glass made of silicon dioxide. It is a very good basic material. Quartz glass has a series of excellent physical and chemical properties.

1. High temperature resistance. The softening point of fused quartz glass is about 1730℃ and can be used for long time working under 1100℃~1250℃.  And working at 1450℃ in a short time.

2. Corrosion resistance. In addition to hydrofluoric acid, fused quartz glass is inert to other acids. Its acid resistance is 30 times as ceramic, 150 times as stainless steel. Especially, any other material cannot make a comparison with chemical stability of fused quartz at high temperature

3. The thermal stability is good. Thermal expansion coefficient is extremely small. And it can withstand severe temperature changes such that heating up to 1100℃ and putting it in normal temperature water will not crack.

4. The light transmittance is good. Quartz glass has good transmittance in the whole spectral band from ultraviolet to infrared. The transmittance of the visible light is above 95%. Especially in the ultraviolet spectrum band and the maximum transmittance is over 85%.

5. The electrical insulation performance is good. Resistance value of quartz glass equaling to 10000 times of ordinary glass. It is an excellent electrical insulating material and has good electrical properties even under high temperature.

As a leading China fused quartz glass supplier and manufacturer, we are providing best price as well as quality for all kinds of customized fused quartz products. We are also willing to look for long term partners who are a distributor or wholesaler specialized in fused quartz glass in local.

For prompt quotation, please contact us at below form.