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        • Product Name  Tungsten/ W/ Wolfram rod
        • Views   506

        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