Purity:99.95%
Density:≥18.2g/cm3
usage temperature:≤2500℃
Thermal Expansion coefficient(0-1600℃）4.98*10
vapor pressure:10 -6Pa at 2100℃
Description of Tungsten crucible
Purity:99.95%
Density:≥18.2g/cm3
usage temperature:≤2500℃
blackness:0.295 at 2027℃
Thermal Expansion coefficient(0-1600℃）4.98*10
vapor pressure:10 -6Pa at 2100℃
2. Application:
Tungsten crucible are heavy and fragile,lift slowly and steadily using high strength hoisting soft belt
tungsten crucible must be stored in a dry area(humidity less than 60%),otherwise they are easy to be oxidized
when setting up the tungsten crucible,the support structure and base should be always horizontal not only at room temperature but also at working temperature to ensure the crucible is not skewed while working
3. Quality control
composition analysis,particle size distribution are tested for each batch of tungsten powder befor putting into production
Measuring density for each tungsten crucible,re-sintering if the density is low
Size inspection logged for each tungsten crucible
ultrasonic flaw detection for each tungsten crucible to ensure homogeniety and flaw-free
|
Diameter(mm)
|
Thickness(mm)
|
Height(mm)
|
Surface finish
|
Inner surface finish
|
Inner bottom finish
|
|
30-50
|
2-10
|
≤500
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
50-100
|
3-15
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
100-150
|
3-15
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
150-200
|
5-20
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
200-300
|
8-20
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
300-400
|
8-30
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
400-450
|
8-30
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
|
450-600
|
8-30
|
≤1000
|
≤Ra2.0
|
≤Ra2.4
|
≤Ra2.8
|
