Baoji Huaheng Titanium Industry Co., Ltd
Quality Is Our Culture & Soul.
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Physical and chemical properties
1 Forging tungsten rod
1.1 Purity: W≥99.95%;
1.2 Density:≥19.3g/cm3;
1.3 Linearity:≤1%;
2 Sintering tungsten rod
2.1 Purity:W≥99.95%;
2.2 Density:≥18.3g/cm3;
2.3 Linearity:≤3%
Measurements and tolerances
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 standard:ASTM | ||
10 | Package | 4 Show certificate of quality | ||
Forging tungsten rod | ||||
Item | 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 quality | ||
Sintering Tungsten rod, as the material, is mainly used in pulling Tungsten wire and Forging Tungsten Rod. As Tungsten possesses the feature of dyslectic point, forging Tungsten rod with high-purity, high-density and excellent high-temperature proof of creep deformation is widely applied for tungsten crucible's supports in the sapphire growth furnace, electrodes, heating elements, connections and support rods in high-temperature furnace.