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.

Specification of Crystal sintered graphite crucible

Crystal Sintered Graphite Crucible– Technical Specification

Material Composition

Crystal sintered graphite crucibles are made from high-purity synthetic graphite. The raw material goes through a special sintering procedure that boosts density and structural integrity. This results in a consistent crystalline structure with marginal impurities– normally less than 50 parts per million (ppm) of ash content.

Physical Characteristics

These crucibles use outstanding thermal shock resistance. They can manage quick temperature level modifications without fracturing. The typical functioning temperature level range depends on 2,800 ° C (5,072 ° F) in inert or reducing ambiences. Their mass thickness varies from 1.70 to 1.85 g/cm TWO. Porosity remains listed below 12%, which aids prevent steel infiltration during melting procedures.

Dimensions and Resistances

Standard sizes vary by model however typically include abilities from 100 ml to 5,000 ml. Wall density is crafted for optimal heat transfer and longevity– usually in between 8 mm and 20 mm, depending upon quantity. All crucibles are machined to tight dimensional resistances: ± 0.5 mm on elevation and diameter, and ± 1.0 mm on total ability.

Efficiency Features

The smooth internal surface area decreases metal adhesion and makes cleaning easier. Thanks to the sintered crystal structure, these crucibles reveal low sensitivity with most non-ferrous metals, including light weight aluminum, copper, zinc, and rare-earth elements like silver and gold. They additionally maintain consistent performance over duplicated heating cycles, offering long service life in shop and laboratory settings.

Taking care of and Use

Always pre-heat the crucible slowly prior to full procedure to prevent thermal tension. Use appropriate lifting devices to prevent mechanical damage. Store in a completely dry place away from moisture to preserve material high quality. Avoid contact with solid oxidizing agents, as graphite can oxidize over 450 ° C in air.

Applications of Crystal sintered graphite crucible

Applications of Crystal Sintered Graphite Crucible

High-Temperature Steel Thawing

Crystal sintered graphite crucibles handle extreme heat effectively. They melt steels like gold, silver, copper, and aluminum without damages. These crucibles remain strong also when temperatures exceed 2,000 ° C. Foundries and little workshops use them daily since they last lengthy and give tidy outcomes.

Precious Metal Refining

Jewelers and refiners rely upon these crucibles to purify rare-earth elements. The product does not react with liquified gold or platinum. This keeps the metal pure and free from contamination. Less waste suggests better returns for services that collaborate with high-value products.

Semiconductor and Crystal Development

In labs and manufacturing facilities that make semiconductors, crystal sintered graphite crucibles hold molten silicon or various other substances. Their thermal stability aids expand consistent crystals. Also under quick home heating or cooling down cycles, they maintain their shape and efficiency. This makes them crucial in producing solar batteries and electronic components.

Research and Development

Universities and proving ground make use of these crucibles for experiments entailing high-temperature reactions. Their regular actions provides scientists reliable information. The crucibles additionally stand up to chemical attack from several fluxes and slags, which is necessary throughout testing brand-new alloys or products.

Specialized Glass Production

Some types of optical or technological glass need melting in inert, non-reactive containers. Crystal sintered graphite fulfills this requirement. It does not present pollutants right into the glass batch. Consequently, the final product has much better clarity and efficiency.

These crucibles integrate sturdiness, purity, and warm resistance. That’s why they are relied on throughout several demanding markets.

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 Crystal sintered graphite crucible

Crystal Sintered Graphite Crucible – Frequently Asked Questions

What is a crystal sintered graphite crucible?

It is a high-purity container made from graphite that has been sintered under controlled heat. This process gives it a dense, strong structure. People use it to melt or hold metals and other materials at very high temperatures.

Why choose sintered graphite over regular graphite?

Sintered graphite is denser and less porous than regular graphite. That means it resists chemical reactions better and lasts longer in harsh conditions. It also handles thermal shock well, so it won’t crack easily when heated or cooled quickly.

What temperatures can it handle?

This crucible works safely up to 3000°C (5432°F) in inert or vacuum environments. In air, the safe limit drops to about 450–500°C (842–932°F) because graphite starts to oxidize at higher temperatures.

Is it suitable for melting precious metals?

Yes. Its high purity and chemical stability make it ideal for melting gold, silver, platinum, and other precious metals. It does not contaminate the melt, which helps keep the metal clean and pure.

How should I care for and store the crucible?

Always let the crucible cool down slowly after use to avoid cracks. Keep it in a dry place away from moisture. Do not drop it or hit it against hard surfaces—graphite is strong but can break if mishandled. Before each use, check for cracks or wear. If you see damage, replace it right away.