Customized vacuum Furnace Parts Pure 99.95% sintered tungsten crucibles

Product description
Tungsten crucible is one of metal tungsten products, which can be formed by sintering, stamping and spinning. Sintering products manufactured under the guidance of powder metallurgical technology is the most commonly used type for furnaces. Tungsten crucibles are specially made from pure tungsten plates or tungsten rods in corresponding processes, such as machine shaping and welding farbrication. Tun

Sintered crucibles are made of high-quality tungsten powder and molybdenum powder through strict screening, mixing, blank setting, pressing, powder turning and other processes, with scientific control over sintering temperature gradient and long insulation time. In cooperation with an HIP process, the crucibles can achieve the features of high density, fine crystal grains and good molding.

Specification of sintering tungsten crucible

Production Process

Tungsten Powder–Sifting - Batch - Isostatic Pressing – Lathe fabrication - Intermediate Frequency Sintering – Second Lathe Fabrication – Packaging. tungsten crucible

Features of Tungsten Crucible

The crucible can be used in vacuum inert gas environment under the temperature of 2600℃;
It has a very high purity of 99.95% and high density over 18.7g/cm3; tungsten crucible
It has high melting and boiling points, high temperature strength, high abrasion resistance as well as high corrosion resistance; tungsten crucible
Tungsten crucible also possesses good thermal conductivity, good hardenability and low thermal expansion coefficient;
We produce tungsten crucibles with accurate size, clean bright internal and external wall.

Product detail

Application:

1.Tungsten crucibles are widely used as core containers in sapphire crystal growth furnace, quartz glass melting furnace, rare-earth smelting furnace and other industrial furnaces since the melting point of tungsten is as high as 3410℃;
2.Tungsten crucible can greatly benefit the crystal success rate, quality control in pulling crystal process as well as the service life of sapphire crystal growth furnace. tungsten crucible

Package and Inspection:

Every tungsten crucible is under strict nondestructive test and density detection. We offer material composition sheet and examination report of the sintered tungsten crucible. We also pack the crucibles in shock and moisture-proof plywood case independently.

Notice:
Before use, it is recommended that the consumer anneal (de-gas) crucibles in a vacuum without batch charging;
In a furnace, the annealment process should be supported with a vacuum at P < 10-4 mmhg;
When preparing a sintered tungsten crucible for work, the consumer should not allow a sharp rise or fall in temperature, or abbreviate the recommended time periods for holding temperatures.

Tungsten and molybdenum crucible (W crucible,Mo crucible) advantage

 We can supply in all commonly used dimensions,very larg dimension crucible is also no problem.

 Quality crucible,factory price

 Precise tolerance as your requirement.

The characters fo Achemetal tungsten crucible and molybdenum crucible (W crucible,Mo curcible)

 Purity ≥99.95%

 Density 18.6g/cm³ for W crucible,10.1g/cm³ for Mo crucible.

 Microstructural homogeneity--HIP.

 Inner surface roughness--Ra 1.