High purity milky white quartz crucible

The high-purity milky white quartz crucible is a core container designed specifically for high-temperature industry and precision material processing. It is refined using high-quality high-purity quartz sand through arc melting technology. The product has excellent high temperature resistance, thermal shock resistance, and chemical inertness. Its unique milky white opaque structure can effectively block ultraviolet rays and uniformly radiate thermal energy. It is widely used in fields such as photovoltaic monocrystalline silicon drawing, semiconductor materials, and special metal melting, and is a key consumable to ensure high-end manufacturing quality.

FAQ

Q1: What standard can the purity of high-purity milky white quartz crucible reach?

A: Our high-purity milky white quartz crucible typically has a silicon dioxide (SiO ₂) content of over 99.99%, and some customized models can break through the "four nines" or even reach the "five nines" level, ensuring that harmful impurities are not released into the melt at high temperatures.

Q2: Does your company support customized services for non-standard sizes?

A: Fully supported. As the source manufacturer, we provide full specification customized services from laboratory small crucibles to industrial grade oversized crucibles. Whether it's the inner diameter, outer diameter, height, or wall thickness, we can customize the mold and production according to your specific furnace platform and process requirements.

Q3: What are the special advantages of milky white quartz crucibles compared to transparent quartz crucibles?

A: The milky white quartz crucible contains a large number of tiny bubbles inside, which gives it excellent diffuse reflection properties. During the heating process, it can evenly radiate heat to the internal materials, avoiding local overheating; Meanwhile, its thermal insulation performance is superior to that of transparent crucibles, which helps to reduce energy consumption and improve the stability of crystal growth.

Q4: What is the typical lifespan of a product?

A: The service life depends on the specific application scenario and temperature curve. In conventional applications such as photovoltaic single crystal drawing, our long-life formula crucible can operate stably for hundreds of hours; Under extreme high temperature conditions, optimizing the molding process and dehydroxylation treatment can significantly extend the single use cycle.

For users engaged in high-temperature material preparation, choosing our milky white quartz crucible means you have obtained the ultimate guarantee of thermal field uniformity and purity. It can not only effectively solve the problem of crystallization during high-temperature melting, prevent the risk of furnace shutdown caused by crucible deformation and collapse, but also perfectly adapt to your existing equipment through precise size customization, thereby significantly reducing trial and error costs and improving the yield and consistency of the final product.

Application field

Photovoltaic new energy industry: As a "breeding container" for single crystal silicon drawing, the milky white quartz crucible directly determines the crystallization quality and success rate of silicon rods due to its excellent insulation and temperature equalization performance.

Semiconductors and electronic materials: meet high purity requirements, used for the melt growth of polycrystalline silicon and other compound semiconductors, ensuring extremely low defect density of chip level materials.

Special Metallurgy and Optical Glass: Suitable for high-temperature melting of rare earth metals, precious metals, and high-purity optical glass, utilizing their chemical inertness to prevent contamination of the metal liquid.

Laboratory and research analysis: Provide various irregular and micro milky white quartz crucibles for universities and research institutes to meet the demanding testing conditions of cutting-edge new material research and development.

Advantages and User Value

Excellent thermal performance: The milky white layer structure provides ideal thermal gradient control, reduces temperature fluctuations inside the melt, helps users obtain a more uniform crystal structure, and reduces dislocations and micro defects.

Ultimate purity guarantee: strict raw material screening and clean workshop production environment ensure extremely low metal ion and hydroxyl content, fundamentally avoiding the interference of impurities on sensitive materials.

Flexible customization capability: With mature arc welding and injection molding processes, we can quickly respond to customers' non-standard needs, shorten delivery cycles, and assist in the rapid launch of new products.

High cost-effectiveness and stable supply: As a physical factory, we eliminate intermediate links and provide you with more competitive procurement costs and long-term stable supply chain support while ensuring world-class quality.

Addressing Application Challenges and Customer Cases

In actual high-temperature crystal pulling or melting operations, users often face many severe challenges. For example, with the continuous increase of crystal size, traditional crucibles are prone to deformation or even rupture due to uneven heating, resulting in expensive raw materials being scrapped; Or due to the crystallization reaction occurring on the inner wall of the crucible, the oxygen content of the final product exceeds the standard, seriously affecting the photoelectric conversion efficiency. In response to these challenges, we have significantly improved the structural density and thermal shock resistance of the crucible by improving the grading ratio of quartz sand and introducing advanced vibration exhaust bubble technology, effectively extending the continuous operation time.

Customer application case (anonymous):

Case 1 (Anonymous: A Photovoltaic Material Research and Development Center)

The customer needs to conduct a new type of perovskite precursor melting experiment at 1200 ℃, requiring extremely smooth and non stick crucible walls. We provide small-sized flat bottomed milky white crucibles (outer diameter 80mm, inner diameter 74mm, bottom inner R-angle 3mm), and mechanically polish the inner wall to Ra ≤ 0.8 μ m. Experimental data shows that the residual amount of melt is reduced by 42% compared to the original transparent crucible, and the cleaning cycle is doubled. The center has included the crucible in its standard laboratory consumables list.

Case 2 (Anonymous: A precious metal recycling company in Southeast Asia)

The company uses high-temperature chlorination method to extract platinum group metals from waste catalysts, and the corrosive atmosphere poses a great challenge to the lifespan of the crucible. We have designed a milky white quartz crucible with thickened walls (10mm thickness), an outer diameter of 380mm, and a height of 280mm. Under actual working conditions, the continuous use time of the crucible has been increased from 35 hours to 52 hours, and the recovery yield per batch has increased by about 18%. At present, the customer has repurchased for four consecutive quarters.

If you are looking for a high-quality, high stability milky white quartz crucible solution, or have any special size and process customization needs, please feel free to contact us at any time. We will provide you with one-on-one professional technical support and quotation services.

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.