Details

Tungsten/ W/ Wolfram rod




Key words:

Tungsten rod

tungsten tube

tungsten rods

tungsten bars

tungsten tubes

w bar

w bars

w rod

w rods

w tube

w tubes


Product Description


Physical and chemical properties

1  Forging tungsten rod

1.1  Purity W99.95%

1.2  Density:≥19.0g/cm3

1.3  Linearity:≤1%

2  Sintering tungsten rod

2.1  PurityW99.95%

2.2  Density:≥18.3g/cm3

2.3  Linearity:≤3%

 

Measurements and tolerances

Unitmm 

 

Delivery condition

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’ requirements

 

  Manufacture process and Equipment

 

Sintering tungsten rod

Item

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 standardGB/T4187-1984

10

Package

 

4  Show certificate of quality

 

 

       Forging tungsten rod

Item

Process