• f
  • t
  • g
  • y
  • in
Technical Ceramics

LOADING IMAGES

Magnesium Oxide MgO Magnesia Crucibles for Metal Melting

Magnesium oxide ceramics can be used for crucible and furnace lining materials in high temperature experiment industry. High-purity magnesia can be used with alumina to prepare molten ceramic particles, which are widely used in the field of abrasive tools. Moreover high-purity magnesium oxide and rare earth oxides are used together as sintering aids for the production of silicon nitride ceramics, such as cutting tools, nozzles, bearings, seal rings, and various corrosion-resistant, wear-resistant, and high-temperature resistant products, which can efficiently and economically control various products with complex shapes.

Inquiry now
Product Detail

The theoretical melting point of magnesium oxide ceramics is as high as 2800℃, and it can work stably in the temperature of 2400℃ under the protection of oxidizing atmosphere or nitrogen. The theoretical density is 3.563.65g/cm3, the Mohs hardness is 5-6. The resistance value is high, and there is good electrical insulation. Moreover, the ability to resist alkaline metal slag is extremely strong, has excellent thermo-chemical properties and stability against metals, and is especially suitable for some harsh occasions with high temperature and alkaline corrosive substances where ceramic materials such as alumina cannot meet the conditions, such as smelting of non-ferrous metals and precious metals. It can also be used to smelt high-purity radioactive metal uranium, thorium alloy, iron and its alloys.


Because of its strong resistance to alkaline metal slag, magnesium oxide crucible products  have many advantages:


1. High temperature resistance, good corrosion resistance, its theoretical using temperature is as high as 2200℃, and it can be used for a long time at high temperature of 1600℃~1800℃. Its high temperature stability and corrosion resistance are better than alumina ceramics.

2. Strong resistance to alkali metal slag, excellent thermo-chemical properties and stability against metals.

3. With high purity, it can effectively avoid contamination of the loaded metals at high temperatures.


Application of Magnesium Oxide Crucibles:


1. Crucibles and other refractory materials for steel, glass and other smelting industries under corrosive conditions. The operating conditions of the steel-making industry are very harsh: the operating temperature is between 1500 and 1700°C, and there is corrosion of molten metal, slag, iron oxide, dust and gas. The conditions of the glass industry and the steel-making industry are similar: the operating temperature is between 1100 and 1700°C.

2. Crucible for smelting metals and alloys, such as nickel alloy, radioactive metal uranium, thorium alloy, iron and its alloys, etc.

3. Piezoelectric, superconducting materials, etc., no pollution, lead corrosion resistance, etc.

4. Ceramic sintered carrier. Especially for the sintering protection of ceramic products with corrosive and volatile substances at high temperatures, such as β-Al2O3.

Request a free quote

If you have questions or suggestions, please leave us a message,we will reply you as soon as we can!

Hot Products
  • boron nitride nozzle

    Boron Nitride Ceramic Nozzle For Metal Powder Gas Atomization

    BN-2300, one of hexagonal boron nitride based composite, is an ideal materials for an atomizer nozzle, thanks to its high strength, high melting point, high toughness, outstanding thermal shock resistance, excellent machinability and low-friction properties. BN-2300 nozzles for the atomizing process can ensure a continuous flow with no blockage or breakage happening at that level.

  • Ceramic Grinding Media

    Ceramic Grinding Media Balls Beads

    Ceramic grinding balls have been extensively used in high-speed milling applications for blending, grinding, and dispersing. Additionally, ceramic balls and beads are used as abrasive media for ceramic raw materials and glazes in ceramic factories, cement factories, enamel factories, and glass work due to their superior density, stiffness, and wear efficiency.

  • Alumina Ceramics

    Alumina Ceramic Parts

    Alumina parts are made of aluminum oxide, which is one of the most important and versatile materials in the field of oxide ceramics. This material therefore used in a wide range of applications. The alumina ceramic from UNIPRETEC has a Al2O3 purity up to 99.8%. Due to the fine structure of the material and its high surface quality, an unsurpassable combination of properties can be achieved.

  • Ceramic Welding Roll

    Ceramic Si3N4 Welding Rolls for Steel Tube Industry

    silicon nitride ceramics is an inorganic non-metallic material. It is a super-hard material, which has lubricity and is wear-resistant; except for hydrofluoric acid, it does not react with other inorganic acids. It is highly corrosive and resistant to oxidation at high temperatures. Moreover, it can resist high thermal shocks. It will not crack when heated to over 1,000°C in the air, cooled rapidly and then heated rapidly. Because of the excellent characteristics of Si3N4 ceramics, it’s often used to manufacture bearings, turbine blades, mechanical seal rings, permanent molds and other mechanical components. In the field of welding of copper stainless, and aluminum tubes, silicon nitride ceramic rolls have natural advantages.

  • boron nitride setters

    Ceramic Boron Nitride Setters for Nitride Ceramics Sintering

    Boron Nitride can be compared to graphite thanks to lubrication capacities, good thermal conduction and easy machinability, although it's white and has good electrical insulation. Plus, it isn't wetted by most molten metals and can therefore be used as a container for most molten metals.

  • Alumina ceramic sintering aid for MIM

    High Purity Alumina Ceramic Sintering Aid for MIM Components

    Ceramic kiln furniture has two basic properties - firstly dimensional stability at high temperatures and secondly thermal shock resistance. UNIPRETEC is professional manufacturer of High Purity Alumina Ceramic Kiln Furniture(Trays, Setter Plates, Saggers).

Related products
boron nitride sheet
HBN Hot Pressed Hexagonal Boron Nitride Ceramic Sheet
Boron Nitride can be compared to graphite thanks to lubrication capacities, good thermal conduction and easy machinability, although it's white and has good electrical insulation. Plus, it isn't wetted by most molten metals and can therefore be used as a container for most molten metals.
Boron Nitride Insulator
Hexagonal Boron Nitride Insulator
H-BN Boron Nitride has an excellent perform in high temperature, high electrical resistivity, chemical inertness, and machinability. These characteristics allow its use for various industries. With the extraordinary machinability, we can produce all types of customized shapes.
zirconia ball
YSZ ZrO2 Yttria Stabilized Zirconium Oxide Zirconia Ceramic Balls
Zirconium dioxide, also known as zirconia and zirconium oxide, is a crystalline metal oxide that has found its way into the technical advanced ceramics industry. It is characterised by its high thermal resistivity, mechanical resistance, and abrasive properties.
Electrical Insulating Alumina Ceramic Sleeve Washer UNIPRETEC
Electrical Insulating Alumina Ceramic Sleeve Washer
Alumina Ceramic is the material used in a wide variety of industrial and engineering applications for its high performance and purity. Alumina oxide is chosen for its strength, stiffness, and resistance to corrosion, as well as its electrical insulation and high thermal conductivity.
silicon nitride sheet
GPSN Si3N4 Silicon Nitride Ceramic Sheets
Silicon Nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.
alumina nozzle
Al2O3 Aluminum Oxide Alumina Ceramic Nozzle
Alumina Ceramic is a very hard, dense material of exceptional strength. Alumina Ceramic exhibits resistance to both high temperature and corrosion. Electrical properties of Aluminum Oxide ceramic include high volume resistivity as well as low loss characteristics at high frequencies.
Silicon Nitride Ceramic Tubes for Treatment of Molten Aluminum UNIPRETEC
Silicon Nitride Ceramic Tubes for Treatment of Molten Aluminum
Because of its superior high strength, thermal shock resistance and corrosion resistance, Silicon Nitride ceramics has become the first choice for the protection tube of aluminum casting furnaces, especially the heaters of holding furnaces. Its comprehensive performance and service life are also the best of all available materials.
silicon nitride disc
GPSN Si3N4 Silicon Nitride Ceramic Disc
The unique combination of material properties of Silicon Nitride makes it ideal for applications with high dynamic stresses, thermal rigor, and demanding reliability requirements, meanwhile, it provides advantages in severe-service applications such as turbines and high-end ball bearings.
our Partners
Customer CTS
Customer ERAMET
Partner Magna
Customer INDO-MIM
Partner Knowles Electronics
MARTOR
PARTNER FUZHOU UNIVERSITY
Customer HealthCap
PARTNER TSINGHUA UNIVERSITY
chat now
If you have questions or suggestions, please leave us a message,we will reply you as soon as we can!
   

Online Service