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 Graphite Crucible for Gold Melting)

Specifications of China Graphite Crucible for Gold Melting

These graphite crucibles are made for melting gold. They handle high heat well. They work fine up to 1800°C. The graphite used is very pure. It is dense. This helps the crucible last longer. It resists damage from gold and fluxes. Fluxes are chemicals used in melting. Good density means less wear. You get more uses from each crucible. These crucibles resist thermal shock. Thermal shock happens when temperature changes fast. They heat up and cool down without cracking. This is important for repeated melting cycles. The material is also resistant to slag. Slag is waste material. It doesn’t stick easily to the crucible walls. This makes cleaning simpler after each melt. The crucible walls are thick enough. Thick walls give strength. They help keep the shape stable under heat. But the walls are not too thick. Heat transfers efficiently to the gold inside. Melting happens faster. Different sizes are available. Common sizes hold from 1 kilogram to 10 kilograms of gold. The exact capacity depends on the model. Made in China.

(China Graphite Crucible for Gold Melting)

Applications of China Graphite Crucible for Gold Melting

China graphite crucibles are vital tools for melting gold. They are made from high-quality graphite. This graphite is very pure. It does not add unwanted stuff to your gold melt. Gold purity is critical. Graphite crucibles help keep it high.

These crucibles stand up to intense heat. Gold melting needs very high temperatures. Graphite handles this easily. It won’t crack or break down quickly under heat stress. This strength is important. It keeps your melt safe.

You can use these crucibles many times. They are strong and long-lasting. They resist wear from constant heating and cooling. You melt gold, let it cool, then melt again. The crucible stays reliable. This saves money over time.

These crucibles work well with different melting methods. Use them in gas furnaces. Use them in electric kilns. They perform consistently. Their shape promotes even heat spread. This helps melt gold fast and evenly.

Graphite crucibles are chemically stable. They do not react badly with molten gold. This prevents contamination. Your gold stays clean and pure. This is essential for quality results.

Handling is straightforward. Crucibles come in various sizes. Pick the right size for your gold amount. They are relatively light. Moving them is easy.

China makes these graphite crucibles well. They offer good value. The price is often lower than other options. The quality remains high. You get a dependable tool without high cost.

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 Graphite Crucible for Gold Melting

China graphite crucibles are popular for melting gold. People have many questions about them. Here are answers to five common ones.

What makes graphite crucibles good for gold? Graphite handles high heat well. Gold melts around 1064°C. Graphite crucibles easily handle this temperature. They heat up fast and cool down fast. This helps control the melting process. Graphite also resists sticking. The gold doesn’t cling to the crucible sides much. This makes pouring easier.

Why choose graphite over other materials? Graphite lasts longer than clay. Clay crucibles crack more easily. Graphite is stronger. It withstands repeated heating and cooling cycles better. Graphite also conducts heat very efficiently. This means less energy is wasted. Your furnace or torch works better. You save fuel and time melting gold.

How hot can a graphite crucible get? Good quality graphite crucibles handle temperatures over 1200°C easily. Some special grades go even higher, past 1600°C. This is plenty hot enough for gold melting. Always check the specific grade’s rating. Never exceed the maximum temperature the maker states. Doing so risks damage.

How long does one crucible last? Lifespan varies a lot. It depends on the graphite quality. It depends on how hot you run it. It depends on how often you use it. A cheap crucible might break after just a few melts. A high-quality one can last for dozens of melts. Proper care helps it last longer. Avoid sudden temperature shocks. Let it cool slowly.

What size crucible do I need? Pick a size based on how much gold you melt at once. Crucibles come in many sizes. Common sizes hold 1kg, 2kg, or 5kg of gold. Don’t fill the crucible completely full. Leave space at the top. This prevents spills when the gold melts and expands. A slightly larger crucible is safer than one too small.

(China Graphite Crucible for Gold Melting)