The appearance of white mist on the inner wall of quartz tubes is usually caused by poor high-temperature dehydroxylation, poor production exhaust, insufficient internal gas purity, or residual impurities left after cleaning. To address this technical challenge, we provide customized quartz tubes with high purity and transparency, eliminating the risk of white mist from the source. We support customization of various specifications and sizes, and through precision machining and ultra clean cleaning processes, ensure that our products meet the stringent requirements of semiconductor, photovoltaic, and optical fields, providing you with reliable consumables protection.

As a professional quartz product customization manufacturer, Luweiya Quartz is committed to providing high-quality and high-purity quartz pipe solutions to global customers. Our product can effectively solve the application challenges of quartz tubes such as crystallization, fogging, decreased transmittance, and shortened lifespan at high temperatures. Through strict purification and dehydroxylation processes, we ensure that the inner wall of the quartz tube is clean and free of impurities, ensuring the stability and yield of downstream processes. At the same time, we provide comprehensive customization services from regular sizes to non-standard shapes (such as punching, slotting, and large-diameter expansion pipes) to meet the personalized needs of users in different industries.

The Cause and Cleaning Scheme of White Mist on the Inner Wall of Quartz Tube

The white mist appearing on the inner wall of the quartz tube not only affects the transmittance, but may also cause pollution to precision processes. The causes and cleaning methods are as follows:

Poor dehydroxylation and poor exhaust: During the drawing or processing of quartz tubes, if the dehydroxylation treatment is not in place or the exhaust is poor, it will cause small bubbles or hydroxyl residues to form inside the tube wall, which will appear as white mist at high temperatures. In addition, insufficient purity of the injected gas can also cause this phenomenon.

Solution: Choose high-purity quartz tubes that have undergone high-temperature dehydroxylation treatment. For slight fogging, a dust-free cotton swab soaked in anhydrous ethanol can be used, combined with high-purity compressed air for inner wall blowing and cleaning; If the fog is severe, it is recommended to directly replace the high-purity quartz tube that meets the process requirements.

Unclean cleaning and residual impurities: If the quartz tube is not thoroughly cleaned during the manufacturing process, the residual impurities will precipitate crystals at high temperatures and adsorb onto the tube wall.

Solution: Adopt professional chemical cleaning and nano polishing technology to ensure that the inner wall of the quartz tube reaches an ultra clean level. In daily maintenance, solvents such as alcohol can be used to regularly wipe the outer wall of the tube to prevent external volatile substances from adhering.

Local overheating and thinning of the quartz tube wall: Poor ventilation or high local temperatures can cause the quartz tube wall to become thinner or even bubble, visually presenting as white mist or deformation.

Solution: Check if the exhaust system of the equipment is unobstructed to ensure even heating of the quartz tube. Select high temperature resistant and thermally stable fused quartz glass products to cope with high temperature environments above 1000 degrees Celsius.

How our product solves application challenges

In high-end applications such as semiconductors, photovoltaics, and optics, the purity and accuracy of quartz tubes directly determine the quality of the final product. The customized quartz tubes we provide have the following core advantages:

Ultra high purity and low hydroxyl: Our high-purity quartz tube has extremely low impurity content. After deep dehydroxylation treatment, it effectively avoids the problems of whitening and crystallization of the tube wall at high temperatures, ensuring excellent optical transmittance and thermal stability even during continuous operation at 1450 ℃.

Precision dimensions and high flatness: Whether used for semiconductor diffusion furnace core tubes or quartz sleeves for fiber preform preparation, we can provide precision machining services with uniform wall thickness and parallelism better than 10 seconds, meeting the stringent requirements of advanced processes of 7 nanometers and below.

Full specification non-standard customization: We support customization based on drawings and samples. Whether it is a conventional quartz tube with an outer diameter of 2-450mm, or a large-diameter expansion tube, quartz flange, quartz ring, quartz boat and other shaped parts, they can respond quickly and deliver quickly.

Why choose us

No matter what equipment you are using, whether the quartz tube you need is a straight tube, conical tube, stepped tube, or a special structure with a window, we can provide a processing plan within 3-5 working days based on the drawings or samples, and provide cleaning process validation sample testing services. For bulk purchasing customers, we can also provide integrated solutions such as dedicated cleaning tanks, acid circulation systems, and waste neutralization devices.

Customer Application Cases

A certain aerospace materials research institute

The unit conducted ultra-high temperature ceramic precursor cracking experiments using irregular quartz bent pipes (with a bending radius of 150mm and an inner diameter of 50mm). A brown white mist mixed layer frequently appeared on the convex side of the bent pipe, which could not be completely removed by conventional soaking. We have customized a split type two-stage bent pipe structure for it, and designed a temperature resistant sealing end face at the interface. At the same time, we provide a dedicated micro spray cleaning gun head, combined with low concentration HF pulse flushing. The cleaning cycle has been shortened from manual wiping for 6 hours each time to automated cleaning for 45 minutes, and the service life of the bent pipe has been extended from 8 cycles to 42 cycles.

Whether you need standard sized quartz tubes or complex shaped quartz devices, we can provide you with professional customized solutions. Welcome to contact us anytime for exclusive quartz product customization quotes and technical support!

Luverre Quartz manufactures and sells a wide range of high quality quartz glass, including quartz tubes, quartz plates, quartz rods, quartz windows, quartz crucibles, quartz boats, quartz flanges, quartz beakers, quartz glass instruments, and more. We can meet all kinds of customized requirements for quartz glass products.