When it comes to quartz tubes, most people first think of their red heating tubes in air purification or heaters. However, as the "glass carrier of industrial technology", quartz tubes have become the "invisible cornerstone" in high-end manufacturing fields such as semiconductors, fiber optic communications, and aerospace due to their high temperature resistance (softening point of about 1730 ℃), extremely high chemical purity (SiO ₂ content of 99.99%), excellent electrical insulation (ten thousand times that of ordinary glass), and spectral transparency from ultraviolet to infrared. For global industrial customers who pursue high purity, extreme environmental resistance, and high transparency, finding a quartz product that does not leak, pollute, or explode often determines the success or failure of the project. 

FAQ: How can quartz tubes solve your industrial production problems?

Q1: In the high-temperature diffusion process of semiconductors, ordinary materials are prone to contaminate silicon wafers, resulting in low yield. What should be done?

A: We recommend using high-purity large-diameter quartz diffusion tubes. It uses imported high-quality crystal raw materials with extremely high purity and minimal harmful impurities. In a diffusion furnace at around 1200 ℃, it can effectively isolate external pollution, ensure the precise diffusion of impurities such as boron and phosphorus, and thus ensure the yield of chips.

Q2: Do we need a container that can work in a strong acid environment for a long time and can observe the internal liquid level? Are there suitable materials?

A: Experimental grade high-temperature resistant quartz glass cups or quartz containers can be fully considered. The acid resistance of quartz glass is 30 times that of ceramics and 150 times that of stainless steel. It hardly reacts with other acidic substances except hydrofluoric acid, making it the most ideal corrosion-resistant material in the chemical and metallurgical industries.

Q3: Special optical fibers require outer sleeves with extremely high numerical apertures to improve optical transmission efficiency. Can they be customized domestically at present?

A: Of course you can. The fluorine doped quartz fiber optic tube we provide can achieve a stable numerical aperture (NA) of up to 0.28 through precise control of material composition, effectively increasing the fiber reception angle by 17% and ensuring precise transmission of light energy in high-precision and cutting-edge scenarios.

Core application areas

1. Semiconductors and Integrated Circuits: Guardians of Purity

In the semiconductor industry chain, quartz components run through core processes such as oxidation, diffusion, and etching.

-Product applications: Large caliber quartz diffusion tubes for 8-inch and 12 inch semiconductors, quartz crystal boats, quartz cleaning tanks, etc.

-Addressing pain points: Directly in contact with silicon wafers or wafers, if the material purity is insufficient or the temperature resistance is poor, it will directly affect the performance of electronic components. Our quartz tube can withstand high temperatures above 1100 ℃ and has a very small coefficient of thermal expansion. Even after experiencing severe temperature differences, it is not easy to explode and is perfectly compatible with diffusion furnace processes.

2. Fiber optic communication and special optical fibers: guides for optical signals

-Product application: Fluorine doped quartz tube, low hydroxyl quartz tube.

-Addressing pain points: In the past, high-end special fiber optic outer sleeves relied on imports for a long time, with high prices and limited specifications. The fluorine doped quartz tube we developed has a size advantage of breaking through 60mm in outer diameter, significantly increasing the length of fiber drawing. Its excellent "beam light" capability is like installing a "spotlight" on optical fibers, meeting the demand for high-precision signal transmission in medical, detection, military and other fields.

3. Photovoltaics and lighting: efficient converters of photovoltaics

-Product application: Low hydroxyl quartz tube, UV filtering quartz tube, and ozone free quartz tube for metal halide lamps.

-Addressing pain points: The presence of hydroxyl groups (- OH) can seriously affect the luminous efficiency and lifespan of the lamp. We use vacuum dehydroxylation technology to control the hydroxyl content below 5ppm, ensuring the stability and efficiency of the light source. At the same time, the UV filter tube can effectively filter out harmful UV rays in the 190-320nm wavelength range, and is widely used in environmentally friendly lighting.

4. Chemical and Metallurgical: Tolerists of Extreme Environments

-Product applications: Quartz tubes for boiler level gauges, quartz reactors, quartz condensers.

-Addressing pain points: Metal materials will quickly corrode in environments with high temperature, high pressure, and strong corrosiveness. Quartz tubes not only have excellent electrical insulation performance (can maintain insulation at high temperatures), but also are transparent and visible, making it easy for engineers to directly observe changes in liquid level and chemical reaction processes inside boilers or reactors.

Customer Application Cases

Case 1: A semiconductor equipment manufacturer

-Customer demand: The customer originally relied on imported 12 inch semiconductor diffusion furnace liners, which not only had a delivery cycle of up to 6 months, but also were expensive. They urgently need to find a domestic alternative supplier that can provide high purity, no bubbles, and small dimensional tolerances.

-Our solution: Based on the size of the customer's furnace body, we have customized an ultra long transparent quartz tube with an outer diameter of 300mm and a wall thickness of 5mm using a special gas melting process. We have strictly controlled the hydroxyl content and conducted 100% annealing treatment on the product to eliminate internal stress.

-Final effect: After product delivery, the temperature resistance performance is completely comparable to imported parts, and there is no deformation or crystallization phenomenon during multiple rapid temperature rise tests at 1100 ℃. The customer's procurement cost has been reduced by 40%, and the delivery time has been shortened to 20 days, completely solving the supply chain security risks.

Case 2: A special fiber optic laboratory in Europe (performance breakthrough)

-Customer requirement: To develop the next generation of high-power fiber lasers, we need a fluorine doped quartz lining tube with ultra-high numerical aperture, requiring an NA value>0.26 and extremely high uniformity of tube wall thickness.

-Our solution: Our R&D team optimized the uniformity of fluorine doping by precisely controlling the chemical vapor deposition process, successfully increasing the NA value of the product to above 0.28 and ensuring that the concentricity error of the 60mm outer diameter tube is less than 0.1mm.

-Final effect: The customer successfully drew high-performance special optical fibers using our tubing, with a coupling efficiency increase of 40%. The related research results were successfully published in top journals and won the government's innovation fund.

Case 3: A large chlor alkali chemical enterprise (safety upgrade)

-Customer demand: The sight glass of the high-temperature and high-pressure reaction kettle in the chemical plant is frequently corroded, requiring frequent shutdown and replacement, posing a significant safety hazard.

-Our solution: We have customized a thickened quartz glass sight tube and a flange type quartz level gauge tube for it, using quartz's strong corrosion resistance and heat shock resistance to replace the original borosilicate glass.

-Final effect: After one year of continuous operation, the quartz sight tube remains as smooth as new, without any corrosion or explosion, ensuring the continuity and safety of production.

Whether you are an equipment engineer in a semiconductor factory or a laboratory manager in a research institute, as long as you need customized quartz glass solutions with high purity, high temperature resistance, and corrosion resistance, we can provide you with accurate services from drawings to finished products with our rich experience and advanced production lines.

Welcome to leave your specification requirements (outer diameter/wall thickness/length/drawings) in the comment section, or contact us directly for samples and quotations!

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 18 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.

Why choose us?

1.We are more experienced.

We have over 19 years production experience of quartz items.

2.We are more efficient.

We reply customers’ requests within 24 hours and we have high efficient production, engineers and sales team.

3.Our quality is more guaranteed.

We control the quality from quartz lumps to quartz sand and then quartz products, we have better and stricter quality control than other manufactures.

4.We are able to produce more difficult quartz products.

We have large grinding platforms and precision etching machines which enable us to 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.

5. About 20 years of professional experience

-Focusing on the manufacturing of quartz products for a quarter century

-The average working experience of the technical team exceeds 15 years

6.Global Service Network

-Our products are exported to over 40 countries and regions including Europe, America, Japan, South Korea, and the Middle East

-Multi language technical support (English, German, French, Spanish, Russian, Japanese)

7. Flexible cooperation mode

Support small batch trial orders, medium - and long-term cooperation, and urgent production for urgent orders, providing OEM/ODM services.