High purity welded and cut quartz components

High purity welding and cutting quartz components, designed specifically for high-end fields such as semiconductors, photovoltaics, optics, and precision instrument manufacturing. These components perform key functions such as welding protection, cutting positioning, and thermal isolation in high temperature and clean environments. Their purity, thermal stability, and dimensional accuracy directly affect the yield and reliability of the final product.

Frequently Asked Questions (FAQ)

Q1: What is the purity of the main material for high-purity welding and cutting quartz components?  

A: We use high-purity quartz raw materials, with a typical purity of ≥ 99% and a total metal impurity content of less than 20ppm, which can meet the requirements of semiconductor grade processes.

Q2: What is the maximum operating temperature that the component can withstand?  

A: Long term use temperature can reach 1100 ° C, short-term temperature resistance is above 1200 ° C, and the thermal expansion coefficient is extremely low within this temperature range, with excellent dimensional stability.

Q3: What is the minimum customizable wall thickness or aperture?  

A: The wall thickness can be as thin as 0.8mm, the minimum aperture can be machined to 1mm, and the tolerance is controlled within ± 0.05mm. It supports customization of complex irregular structures.

Q4: Do you have standard inventory sizes? Or should we customize everything according to orders?  

A: We have both commonly used specifications of semi-finished products in stock and offer fully customized services based on drawings, from single piece samples to mass production.

What core needs can the product solve for you?

-Yield improvement: Reduce welding spatter and cutting heat affected zone pollution, and lower scrap rate.  

-Process consistency: Eliminate process fluctuations caused by size deviations of quartz components.  

-Equipment compatibility: No need to modify existing equipment, replace or embed existing fixtures directly.  

-Long term cost control: High purity materials delay microcracks and crystallization aging, extending replacement cycles.

Core technical characteristics and application value of the product

1. Ultra high purity material system

-Characteristics: Hydroxyl content<150ppm, no bubbles, no stripes, no impurity inclusions.  

-Value: Avoiding the release of metal ions or volatiles to the workpiece during welding or laser cutting processes, especially suitable for processes such as LED chip packaging, fiber fusion splicing, and silicon wafer edge cutting that have zero tolerance for pollution.

2. Precision welding/cutting structure design

-Features: The component can integrate composite functions such as gas flow channels, positioning slots, and thermal isolation reflection surfaces.  

-Value: One component simultaneously achieves three major functions: uniform distribution of welding protection gas, precise positioning of workpieces, and heat barrier, reducing the number of fixtures and improving automation integration.

3. Excellent thermodynamic stability

-Characteristics: The coefficient of thermal expansion is about 0.54 × 10 ⁻⁶/K, and the thermal conductivity is as low as 1.4 W/(m · K).  

-Value: No deformation or cracking during repeated rapid temperature fluctuations (such as laser pulse welding), ensuring optical path and positional accuracy during months of continuous production.

4. Customizable size range is extremely wide

-Features: The outer diameter ranges from 5mm to 400mm, the length ranges from 10mm to 800mm, and the shapes include circular pipes, square cavities, cones, flange covers, and irregular elbows.  

-Value: Whether it's the protective window for micro medical device laser cutting heads or the isolation cover for large photovoltaic glass coating line heaters, they can be solved in one factory.

Resolve specific issues in your practical application

Quartz components rupture due to internal stress generated during laser cutting: gradient annealing process is used to eliminate residual stress and optimize wall thickness distribution through finite element simulation

After repeated welding, the quartz surface becomes white after crystallization, blocking the optical path: high-purity fused silica is used and the surface is passivated, and the anti crystallization life is increased by more than three times

Standard parts cannot match non-standard interfaces of imported equipment: 3D scanning reverse modeling+original position replacement customization is provided, and flange angles, threads, and sealing grooves are processed completely according to the measured data of the equipment

The cost of switching between small batches and multiple varieties is high: the flexible production line supports a minimum order of 1 piece without mold costs

Why choose us?

-Full process independent processing: from cutting, grinding, punching, polishing to hot processing, cleaning, packaging, all completed in our factory, with controllable quality.  

-Complete detection capability: equipped with optical profiler, ultraviolet transmittance analyzer, anime image measuring instrument, stress detector, and issued detection report for each batch.  

-Serving global customers: Our products are exported to over ten countries including Germany, Japan, South Korea, and the United States.

-Quick response customization: Engineers provide manufacturability suggestions, respond to technical inquiries within 24 hours, and provide preliminary design solutions within 72 hours.

Customer Application Case (Anonymous)

Case 1: A semiconductor packaging equipment supplier in Europe

Requirement: A gas guided quartz component is needed for the side of the gold wire welding machine welding head, which is required to accurately cover the 0.5mm area around the welding point with nitrogen gas and not interfere with the high-speed movement of the welding head.  

Solution: We have designed and manufactured a miniature curved quartz cover that integrates a 0.3mm wide narrow seam air outlet, with an overall size of 12mm × 8mm × 5mm and a wall thickness of 1mm. The front end is chamfered to avoid the welding head.  

Result: The customer's welding spatter was reduced by 76%, and the welding head movement trajectory was not interfered with in any way. They have been continuously purchasing for 18 months, with an average monthly usage of 2000 pieces.

Case 2: A manufacturer of laser slotting equipment for photovoltaic cells

Requirement: The protective lens under the laser cutting head is frequently contaminated with silicon powder and needs to be shut down for cleaning every 2 hours. Request to customize a quartz negative pressure suction ring, installed between the cutting head and the silicon wafer, to remove smoke and dust.  

Solution: We have developed a circular quartz component with an outer diameter of 180mm, an inner diameter of 120mm, and a thickness of 8mm. The internal design includes a circular airway and 36 equiangular micropores, and the surface is coated with an anti reflection film.  

Result: The cleaning cycle for protective lenses has been extended to 40 hours, and the overall OEE (Equipment Efficiency) of the entire line has been improved by 12%. This component has become a standard part of the customer's new equipment.

Case 3: A Medical Laser Equipment Company in the United States

Requirement: A disposable quartz tip head for minimally invasive fiber laser cutting machines, which should be biocompatible, accurately breakable, and have a light transmittance greater than 92%.  

Solution: We have customized a quartz capillary tube with an outer diameter of 2.2mm, inner diameter of 1.6mm, and length of 25mm. The tube wall is pre engraved with a circular V-shaped groove (depth of 0.2mm), which is convenient for doctors to break and discard after surgery.  

Result: Through ISO 10993 biocompatibility testing, the transmittance reached 94.3%, and the cost per unit was reduced by 30% compared to the original ceramic solution. Currently, 100000 units have been mass-produced and delivered.

Whether you need millimeter level precision welding nozzles or hundreds of millimeters of vacuum chamber isolation windows; Whether you are in the stage of scheme validation or mass production expansion, we welcome you to provide drawings, sketches, or just usage scenario descriptions. Please contact our technical sales team for feasibility assessment and quotation - let's use a high-purity quartz to weld a higher quality future for you.

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

For more information, please feel free to contact us.