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High Purity BN Boron Nitride Crucible for Melting
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Meo Machinery Co.LTD
China - Hangzhou
Manufacturing and trade
Trade Capacity
Export Percentage
0-30%
Nearest Port
Shanghai
Accepted Delivery Terms
Employees
501-1000 people
Accepted Payment Currency
USD,EUR,JPY
Average Lead Time
90 Day(s)
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Product Specifications
--Product Description
Description
Ceramic crucibles made of hexagonal boron nitride play an important role in industrial production. In series manufacturing and high temperature melting processes (such as those used in the production of metallic materials) are expected to be more effective than they have traditionally been. These are the most important characteristics of the perfect production plant: higher performance, greater variety in processing, and chemical and thermal resistance of the production systems. Due to particular significance, it is important to consistently avoid metallic materials' melts from adhering to the mold wall, and to preventing melt-spreading devices from melting. Hot metal like aluminium can adhere, strike mold walls, and even react, all of which can result in failure, this is why Hexagonal Boron Nitride Crucible is the one of the only innovative materials that fulfill these demands.
Material of BN crucible is like the traditional graphite, which has a hexagonal structure lattice, in addition to the desired lubrication andeparation effect. However, while graphite is unaffected at temperature as high as 1,000 degree C/1,832 degree F, boron nitride frictions activity holds steady at this temp. condition when used in metal melting and casting. Since it functions well at high temperature, it is suitable as a high-temperature stable crucible, for example, crucible liner for e-beam evaporation. Boron nitride would not be affected by these conditions because it does not interfere with graphite. Due to excellent separation properties, particularly compared to aluminium melts, they are characterized as innovative. Ensuring the molten metal does not adhere to the walls of molds and encouraging the slipping of the molten metal on the lining of the mold helps to keep the walls of the mold free of the molten metal. The material in particular prevents the mold walls from deterioration, increasing the entire products' service life.
Product Features
√ non-wet by molten metals | √ non-electrically conductive |
√ easily released and cleaned | √ extremely high using temperature |
√ low coefficient of thermal expansion | √ outstanding thermal shock resistance |
Material Properties
ITEM | UNIT | BN-2000 | BN-2300 | BN-2800 | BN-3000 |
Main Content | - | BN>99% | BN+Al2O3 | BN+AlN | BN+ZrO2 |
Color | - | White | Light Grey | Dark Grey | Dark Grey |
Density | g/cm3 | 1.95-2.00 | 2.25-2.35 | 2.75-2.85 | 2.90-3.00 |
Flexural Strength | Mpa | 30 | 65 | 85 | 90 |
Compressive Strength | Mpa | 55 | 145 | 205 | 220 |
Electrical Resistivity | Ω·cm | >1014 | >1013 | >1013 | >1012 |
Max. Use Temp. (Air) | ℃ | 900 | 1,000 | 1,000 | 1,000 |
Max. Use Temp. (Vacuum) | ℃ | 1,900 | 1,750 | 1,800 | 1,750 |
Max. Use Temp. (Inert) | ℃ | 2,000 | 1,750 | 1,800 | 1,750 |
Thermal Conductivity | W/m.K | 35 | 30 | 85 | 30 |
CTE (25 - 1,000 ℃) | 10-6/K | 1.5 | 2 | 2.8 | 3.5 |
∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.
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About Us
UNIPRETEC is a representative technical ceramic company in China. Relying on the technical team with more than 10 years of experience and the cooperation of well-known domestic colleges and institutions, our company covers the manufacturing and sales of oxide, nitride and carbide ceramic products. Based on the research in the advanced ceramic industry, our company is good at providing suitable products and suggestions flexibly according to customers' applications and needs. For many years, our company has focused on meeting the needs of customers from all over the world. Many praises from customers and partners have been encouraging UNIPRETEC to move forward and develop.
"Simple things into very complex, can find new areas; Read the complex phenomenon is very simple, can be found that the new law." - - - - - -Isaac Newton
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