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MELTING CRUCIBLES FOR NON-FERROUS METALLURGY PRECIOUS METALS AND SPECIAL ALLOYS

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MELTING CRUCIBLES FOR NON-FERROUS METALLURGY PRECIOUS METALS AND SPECIAL ALLOYS

Brand Name : ZG

Model Number : MS

Certification : CE

Place of Origin : CHINA

MOQ : 1 piece

Price : USD10/piece

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 10000 pieces per month

Delivery Time : 3 working days

Packaging Details : Strong wooden box for Global shipping

Shape : customized shapes

Application : Melting crucibles for non-ferrous metallurgy, precious metals and special alloys

Density : 4.0 g /cm3

Color : White, Yellow

Max. working temperature : 2100 Deg. C or 4000 F

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Melting crucibles for non-ferrous metallurgy

precious metals and special alloys

Ζirconia Silicate (Zircon) Crucibles, Melting Crucibles For Non-Ferrous Metallurgy, Precious Metals And Special Alloys

Zirconium Silicate ( ZrSiO4) or Zircon has unique and outstanding properties as a refractory material. It has no definite melting point and dissociation into zirconia and silica begins at 1550°C with little physical change apparent until 1700°C. Its favorably low thermal expansion properties and lack of crystalline inversion give it a higher thermal endurance than other ceramic refractory materials.


One of the major uses of Zircon crucibles is in the glass making laboratory. When glassy or siliceous slags are present in your melt t-ceramics Zircon crucible is the solution. Zircon crucibles are often used for melting platinum-group alloys. Their strength and resistance to high temperature makes them right for those special “dirty refining” applications. Zircon crucibles are also suitable for metal melting and casting since the cast metal does not stick to the crucible even at high temperature. Zircon crucibles performs well with many non-ferrous metals and alloys, especially Aluminium. Zircon is not “wetted” by Aluminium, so is relatively unreactive.

Basic properties of the material

Properties Brand of material
ZROX-Y ZROX-Mg ZROX-Ca ZROX-Al
Composition ZrO2 + Y2O3 ZrO2 + MgO ZrO2 + CaO ZrO2 + Al2O3
Density, g/sm3 6,02-6,08 5,6-5,8 4,0-4,4
Open porosity, % 0 0 0 0
Hardness, GPa 12-13 12-13 14-18
Flexural strength, MPa 1000-1400 500-900 400-1400
Compressive strength, MPa 2000-2500 1600-1800 2700-3000
Thermal conductivity at 20-100°С, W/mК 2,0-2,5 2,0-2,5 15-30
Coefficient of linear thermal expansion at 20-1000°С, 10-6К-1 10-11 10-11 7,0-8,5
Maximum operating temperature

1000

(modification up to 2000)

850 1500


Features:

  • 1550 C max. service temperature
  • 64% wt. Zirconia and Hafnia, 35% wt. Silica
  • Exceptional thermal shock resistance, suitable for fast thermal cycling
  • Superior performance against molten material
  • Extended life – low cost
  • Low reactivity - excellent chemical resistance to corrosion from chemicals, especially resistant against alkali material
  • Low porosity and exceptionally fine surface finish enhance cleaning from heat treatment residuals and prevents chemical attack
  • High mechanical strength and wear resistance
  • Consistent dimensional control

The crucible material has the following requirements:

  • corrosion resistance, resistance to melts and slags;

  • mechanical strength;

  • high purity material;

  • resistance to thermal shock (heat resistance);

  • refractoriness;

  • shape stability and preservation of strength up to the maximum working temperature.

The choice of crucible material usually depends on the composition of the material to be melted, as well as the specific operating conditions.

We offers crucibles from the following materials:

  • corundum (Al2O3 content not less than 98%);

  • zirconium dioxide with various stabilizers (ZrO2);

  • corundum-zirconium composite (Al2O3 + ZrO2);

  • corundum-periclase composite (Al2O3 + MgO);

  • corundum-carbide-silicon composites (Al2O3 + SiC);

  • aluminosilicate compositions (Al2O3 + SiO2);

  • ceramics based on amorphous silica (brand AMK-00, 01, 02, SiO2 content not less than 99.98%);

  • graphite and graphite-containing materials.

Crucibles are made according to the standard nomenclature, and according to customer’s drawings.

MELTING CRUCIBLES FOR NON-FERROUS METALLURGY PRECIOUS METALS AND SPECIAL ALLOYS


Product Tags:

1550 C Max Zirconium Oxide Ceramics

      

1550 C ΖIrconia Silicate Crucibles

      

ZrSiO4 Ζirconia Silicate Crucibles

      
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