Overview of Mullite Crucible

Mullite crucibles are made from a high-performance ceramic material composed primarily of alumina (Al₂O₃) and silica (SiO₂). Known for their excellent thermal stability and mechanical strength, mullite crucibles are widely used in high-temperature applications such as melting metals, glass, and ceramics. They offer superior resistance to thermal shock and chemical attack, making them indispensable in both laboratory and industrial settings.

Features of Mullite Crucible

Thermal Shock Resistance: Exceptional ability to withstand rapid temperature changes without cracking.
High Mechanical Strength: Strong and durable, even at elevated temperatures.
Chemical Stability: Resistant to most chemicals, ensuring minimal contamination during processes.
Temperature Range: Can operate effectively at temperatures up to 1650°C.
Low Thermal Expansion: Minimal expansion or contraction with temperature changes, ensuring dimensional stability.
Non-Reactive: Does not react with the materials being processed, preserving sample purity.
Versatility: Suitable for a wide range of applications including metallurgy, glass manufacturing, and laboratory experiments.

(China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace)

Specifications of China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace

This China-made high alumina ceramic crucible handles extreme heat for metal melting. Its main material is aluminum oxide, Al2O3, around 85% or more. This high alumina content gives it excellent resistance to very high temperatures. It works reliably up to about 1600 degrees Celsius (2912°F). This makes it perfect for melting metals like aluminum, copper, brass, and zinc alloys inside furnaces.

The crucible fights chemical damage well. Molten metal and furnace gases cause little harm. It resists corrosion effectively. Thermal shock resistance is another key feature. You can heat it fast or cool it quickly. It won’t crack easily under these stresses. This toughness means it lasts longer than many alternatives. You get good value over time.

It comes with a matching cover. The cover fits tightly. This helps keep heat inside the furnace. It reduces energy loss. The cover also stops dust and other stuff from falling into your molten metal. This protects your melt’s purity. Both the crucible body and the cover are made the same way. They are shaped precisely. Then they are fired at intense heat. This process makes them very dense and strong. The surface stays smooth. Metal doesn’t stick to it much. Cleanup is easier after use.

These crucibles are built for demanding jobs. They are essential tools in foundries, labs, and jewelry workshops. They stand up to repeated heating and cooling cycles. You can use them daily. Common sizes are available. Think capacities like 50ml, 100ml, 200ml, 500ml, 1000ml, and larger. The exact size depends on your furnace and metal batch. They are packed securely. This prevents breakage during shipping. You receive them ready for your furnace.

(China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace)

Applications of China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace

This China-made high alumina ceramic crucible handles tough metal melting jobs. Its boat shape works perfectly for furnace use. The material is mainly Al2O3, alumina ceramic clay. This gives exceptional heat resistance. It withstands incredibly high temperatures without breaking down. Melting gold, silver, copper, or aluminum? This crucible handles it. The high alumina content fights off chemical attack. Molten metals won’t easily damage it. This crucible lasts longer than cheaper options. It saves money over time.

The included cover is crucial. It traps heat inside the crucible. Your furnace works more efficiently. Less energy is wasted. The cover also prevents dangerous splashes. Hot metal stays contained. This protects workers and equipment. The ceramic material heats up evenly. Your metal melts consistently. You get predictable results every time. Thermal shock resistance is another key benefit. Moving the crucible from hot to cool areas? It resists cracking. This durability is vital for daily foundry work.

Refractoriness is top-notch. The crucible maintains strength under extreme heat. Crucible failure mid-pour is a disaster. This product minimizes that risk. Its smooth surface is easy to clean. Residue doesn’t stick badly. Just brush it out after cooling. Handling is straightforward. The boat design provides stability. The ceramic feels solid and reliable. This crucible suits small-scale foundries, jewelers, and labs. It performs reliably in demanding conditions.

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 China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace

China High Alumina Al2O3 Ceramic Boat Crucible with Cover – 5 Key Questions

1. What is the maximum temperature this crucible handles?
This crucible withstands very high heat. Its maximum continuous working temperature is 1650°C (3002°F). That temperature suits melting most common metals like aluminum, copper, brass, and zinc. Avoid exceeding this limit. Extreme heat damages the crucible.

2. How much alumina (Al2O3) is inside?
The alumina content is crucial. This crucible uses a high-alumina formula. The exact Al2O3 percentage is 85% minimum. This high alumina level provides excellent heat resistance. It also resists chemical attack from molten metal.

3. How long will one crucible last?
Crucible lifespan depends heavily on usage. Factors include the metals melted, the peak temperatures reached, and how often thermal cycling happens. Used correctly, these crucibles offer good durability. Expect many melting cycles under normal conditions. Inspect it regularly for cracks or wear.

4. Can it handle sudden temperature changes?
Thermal shock resistance is important. This crucible handles moderate thermal shocks reasonably well. Avoid plunging a cold crucible directly into a very hot furnace. Pre-heating the crucible slowly is recommended. This practice prevents sudden stress cracks.

5. Is it safe for melting different metals?
This crucible works well with many non-ferrous metals. It is suitable for aluminum, copper, brass, bronze, silver, and gold. Do not use it for melting very aggressive metals like titanium or zirconium. Also avoid iron or steel. These metals react badly with the alumina material.

(China High Alumina Al2o3 Ceramic Boat Crucible Refractory Aluminum Clay Ceramic Crucible with Cover for Metal Melting Furnace)