Diameter
Diameter tolerance(%)
Max length
Forging or sintering
<20
±0.1
2000
20~30
±0.1
1200
30~60
±0.1
1000
60~70
±0.2
800
70~90
±0.2
600
>90
Manufacture according to customers’ requirementsItem
Process
Equipment
Quality check point
1
Tungsten powder
2
Sieving
High frequency vibrating sieve
1 Purity of tungsten powder
3
Mixed powder
V shape mixer
2 Mixed tungsten powder
4
Check
5
Isostatic pressing
Isostatic pressing machine
1 Measurements, unit net weight
6
Check
2 Surface quality
7
IF sintering
IF induction sintering furnace
1 Measurement, unit net weight, density
8
Alignment
200T pressing machine
2 Linearity ,Surface quality
9
Check
3 Quality standard:ASTM
10
Package
4 Show certificate of qualityItem
Process
Equipment
Quality check point
1
Sintering tungsten rod
1 Measurements
2
Forge
Forging air-hammer
2 Density
3
Machining
Lathe, grinder
3 Linearity ,Surface quality
4
Check
4 Quality standard:ASTM
5
Package
5 Show certificate of qualityProduction FlowCompany InformationexhibitionBuyers FeedbackPackaging & Shippingcontact