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Product Descr1ption

Tungsten Crucible

1). Sintering tungsten crucible
Density: 18.0 - 18.7 g/cm3
Working temperature: 1800 - 2, 600 DC
Diameter: 100 - 600mm (max. )
Cubage: 0.5 - 100 litres
2). Forging tungsten crucible
Density: 18.5 - 19.0 g/cm3
Working temperature: 1800 - 2, 600 DC
Diameter: 18 - 120mm (max. )
Cubage: 20 - 500 ml

Technical specifications

Diameter(mm)	Thickness(mm)	Height(mm)	Surface finish	inner surface finish	inner bottom finish
30-50	2-10	≤200	≤Ra2.0	≤Ra2.4	≤Ra2.8
50-100	3-15	≤300	≤Ra2.0	≤Ra2.4	≤Ra2.8
100-150	3-15	≤350	≤Ra2.0	≤Ra2.4	≤Ra2.8
150-200	5-20	≤400	≤Ra2.0	≤Ra2.4	≤Ra2.8
200-300	8-25	≤500	≤Ra2.0	≤Ra2.4	≤Ra2.8
300-400	8-30	≤600	≤Ra2.0	≤Ra2.4	≤Ra2.8
400-450	8-30	≤650	≤Ra2.0	≤Ra2.4	≤Ra2.8
450-600	8-35	≤800	≤Ra2.0	≤Ra2.4	≤Ra2.8

Specifications

According to different processing methods, tungsten crucibles for vacuum coating can be mainly divided into sintered molding, press molding, spinning molding, turning forming and welding forming.
Turning forming is mainly applied. We recommend the working temperature of the tungsten crucible for vacuum coating should be controlled below 2600℃.
We can produce tungsten crucible for vacuum coating according to the customer drawing.

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