Overview of Corundum Crucible

Corundum crucibles, made from alumina (Al₂O₃), are highly valued for their exceptional thermal resistance and chemical stability. These crucibles are ideal for high-temperature applications, such as melting and annealing processes in laboratories and industrial settings. Corundum crucibles can withstand temperatures up to 1800°C and are resistant to most chemical reagents, making them indispensable in various scientific and manufacturing operations.

Features of Corundum Crucible

High Thermal Resistance: Can withstand temperatures up to 1800°C without degrading.

Chemical Stability: Resistant to most acids and alkalis, ensuring minimal contamination during experiments or production.

Durability: Extremely durable and long-lasting, even under harsh conditions.

Non-Reactive: Does not react with the materials being processed, preserving sample purity.

Versatility: Suitable for a wide range of applications including melting metals, glass, and ceramics.

Precision Engineering: Manufactured to tight tolerances for consistent performance and reliability.

(Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln)

Specification of Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln

The refractory custom high-temperature alumina ceramic corundum crucible is crafted for severe thermal and chemical resistance in heater and kiln applications. Made up of high-purity alumina (Al ₂ O ₃) varying from 95% to 99.8%, the crucible leverages diamond’s crystalline structure to achieve remarkable firmness, thermal security, and sturdiness. Basic material are thoroughly selected to ensure marginal contaminations, followed by sophisticated forming strategies such as isostatic pressing or slip casting to develop uniform, dense green bodies. These are sintered at temperatures surpassing 1600 ° C, resulting in a completely compressed framework with high mechanical toughness and reduced porosity.

The crucible operates constantly at temperatures approximately 1800 ° C, with temporary tolerance approximately 1900 ° C. It displays a low thermal development coefficient (7-8 x10 ⁻⁶/ ° C), ensuring resistance to thermal shock during quick heating or cooling cycles. Its chemical inertness makes it resistant to molten metals, slags, acids, and alkalis, ideal for harsh atmospheres. Regular measurements include diameters from 10 mm to 500 mm, elevations approximately 600 mm, and wall thicknesses adjustable in between 3 mm and 50 mm, customizable to individual requirements with resistances as tight as ± 1%.

Applications extend steel melting, glass manufacturing, chemical evaluation, semiconductor processing, and aerospace element testing. Quality assurance involves thickness checks (≥ 3.9 g/cm ³ for 99% alumina), XRD stage evaluation, and ultrasonic imperfection detection, adhering to ASTM or ISO requirements. Optional attributes include polish finishings for enhanced slag resistance, customized covers, takes care of, or spouts, and customized thermal accounts for specialized heating cycles.

Packaged in shock-absorbent materials to avoid transportation damage, these crucibles provide longer life span than graphite or metal alternatives, lowering contamination risks and substitute frequency. Their premium thermal performance and architectural honesty make them an economical option for high-precision, high-temperature commercial procedures.

(Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln)

Applications of Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln

Applications of Making a Refractory Custom High-Temperature Alumina Ceramic Diamond Crucible for Heater Kiln

A refractory custom-made high-temperature alumina ceramic diamond crucible is engineered for extreme thermal and chemical resistance, making it indispensable in sectors needing reliable containment of molten materials. Composed primarily of aluminum oxide (Al ₂ O ₃), commonly over 99% pureness, these crucibles show outstanding firmness, thermal stability as much as 1800 ° C, and resistance to thermal shock, corrosion, and abrasion. Their applications extend diverse high-temperature procedures.

In metallurgy, these crucibles are made use of for melting and spreading rare-earth elements like gold, silver, and platinum, as well as alloys needing contamination-free atmospheres. The high alumina web content makes certain marginal reactivity, protecting metal pureness. In a similar way, in glass manufacturing, they withstand extended direct exposure to molten glass, withstanding alkali and acidic reactions while preserving structural integrity.

Chemical laboratories and industrial chemical handling rely on these crucibles for dealing with destructive compounds, such as changes, salts, and hostile reagents, because of their chemical inertness. They are likewise critical in semiconductor manufacturing for growing single crystals or sintering advanced porcelains, where precision and thermal harmony are paramount.

In r & d, custom-made alumina crucibles accommodate specialized experiments, such as thermal analysis (TGA/DSC) or material synthesis under regulated atmospheres. Their capability to be tailored fit, size, and wall surface thickness makes sure compatibility with distinct heating system setups and process needs.

The crucibles’ durability reduces downtime in industrial kilns and furnaces, offering longer life span compared to traditional materials like graphite or lower-grade porcelains. Their reduced thermal growth coefficient minimizes fracturing during rapid temperature biking, improving functional security and cost-efficiency.

Additionally, alumina ceramic crucibles are used in aerospace and energy markets for screening high-performance products, such as wind turbine parts or nuclear gas analogs, under substitute extreme problems. Their function in recycling rare planet components and processing progressed compounds additionally highlights their versatility.

By incorporating high-temperature resilience, chemical security, and customization, alumina diamond crucibles enhance effectiveness and reliability in demanding commercial and clinical applications, making them a cornerstone of modern high-temperature material handling.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln

What is the primary material used in custom high-temperature alumina ceramic corundum crucibles?
The crucible is made primarily from high-purity alumina (Al₂O₃), often exceeding 99% purity. Corundum, a crystalline form of alumina, provides exceptional thermal stability, chemical resistance, and mechanical strength. This material is ideal for extreme environments, such as furnace kilns operating above 1600°C, due to its low thermal expansion and resistance to thermal shock.

What temperature range can these crucibles withstand?
Custom alumina corundum crucibles can withstand continuous temperatures up to 1800°C (3272°F) and short-term exposure to 1900°C (3452°F). Their performance depends on the alumina content, with higher purity offering better heat resistance. They outperform traditional materials like graphite or clay, making them suitable for melting metals, glass, or advanced ceramics.

How are custom dimensions and shapes achieved?
Manufacturers use advanced shaping techniques like isostatic pressing, slip casting, or CNC machining to create precise geometries. Customization includes diameter, height, wall thickness, and features like lids, spouts, or reinforced rims. Design parameters are tailored to the application’s thermal profile, load capacity, and compatibility with specific furnace kiln setups.

What factors affect the crucible’s lifespan?
Lifespan depends on thermal cycling frequency, chemical exposure, and mechanical stress. Gradual heating/cooling prevents cracks from thermal shock. Avoid contact with corrosive materials (e.g., strong acids, alkalis) that degrade alumina. Proper handling and storage minimize physical damage. High-quality crucibles can last months to years under optimal conditions.

How should these crucibles be maintained?
Clean residues after each use with non-abrasive tools to prevent contamination. Inspect for microcracks or wear before reheating. Store in a dry environment to avoid moisture absorption, which can weaken the structure during heating. Pair with compatible furnace linings (e.g., alumina-based refractories) to reduce thermal mismatch. Follow manufacturer guidelines for maximum thermal and mechanical load limits.

(Making a Refractory Custom High Temperature Alumina Ceramic Corundum Crucible for Furnace Kiln)