Tantalum cube is one of the most important products of tantalum metal. The use of metal tantalum: Metal tantalum is a kind of light gray metal with a slight blue color. Because of its many unique characteristics, it has a wide range of applications, so it is known as the all-rounder of the "metal kingdom".
The texture of tantalum is very hard, and the hardness can reach 6-6.5. Its melting point is as high as 2996 ° C, ranking third after tungsten and rhenium. Tantalum is malleable and can be drawn into filaments or made into thin foils. Its thermal expansion coefficient is very small, and it only expands by 6.6 parts per million per degree Celsius. In addition, its toughness is very strong, even better than copper.
Tantalum also has excellent chemical properties and has extremely high corrosion resistance. No matter in cold or hot conditions, it has no reaction to hydrochloric acid, concentrated nitric acid, and "aqua regia". Soak tantalum in sulfuric acid at 200°C for one year, and the surface layer will only be damaged by 0.006 mm. Experiments have proved that tantalum has no effect on alkaline solution, chlorine gas, bromine water, dilute sulfuric acid, and many other agents under normal conditions, and only reacts under the action of hydrofluoric acid and hot concentrated sulfuric acid. Such cases are relatively rare in metals.
The characteristics of tantalum metal cube make it widely used in the field of application. In the equipment for preparing various inorganic acids, tantalum can be used to replace stainless steel, and the service life can be dozens of times longer than stainless steel. In addition, in chemical, electronic, electrical and other industries, tantalum can replace the tasks that used to be undertaken by the precious metal platinum, which greatly reduces the required cost.
1. Physical properties of tantalum metal cube
- Density: 16.6 g/cm³
- Melting point: 2996 °C
- Boiling point: 5425 °C
- Hardness: 6.5 Mohs
- Thermal conductivity: 57.5 W/(m K)
- Conductivity: 7.89 × 106 S/m
2. Chemical properties of tantalum metal cube
- Very corrosion-resistant and long-term stability in extremely harsh environments such as acids, alkalis, chlorides, and oxidizing agents.
- It can withstand high temperatures and high pressure and has good stability.
- Very insoluble in common solvents, such as water, sodium hydroxide, ammonium chloride, nitric acid, etc.
- React with hydrogen at high temperature to produce oxides; react with chlorine at high temperature to produce tantalum pentachloride.
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Tantalum cube block chemical composition |
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|
Grade |
R05200 |
R05400 |
|
Chemical Composition |
% max |
|
|
Ta |
Remain |
Remain |
|
Fe |
0.005 |
0.03 |
|
Si |
0.005 |
0.02 |
|
Ni |
0.002 |
0.005 |
|
W |
0.001 |
0.04 |
|
Mo |
0.001 |
0.03 |
|
Ti |
0.002 |
0.005 |
|
Nb |
0.003 |
0.1 |
|
O |
0.015 |
0.02 |
|
C |
0.01 |
0.01 |
|
H |
0.0015 |
0.0015 |
|
N |
0.005 |
0.005 |
3. Manufacturing Processes
The production process of tantalum cube usually includes the following steps:
1) Raw material preparation: select high-purity tantalum metal, and its purity must reach more than 99.99%.
2) Melting and casting: Heat the tantalum metal to the melting point and pour it into the pre-prepared mold. After cooling, a tantalum billet with regular shape will be obtained.
3) Hot extrusion: put the tantalum billet into the extruder for hot extrusion. This deforms the tantalum billet, further increasing its density and purity.
4) Sintering: Put the tantalum billet into a high-temperature furnace for sintering to further increase its density and strength.
5) Cutting and processing: Cut the sintered tantalum billet into the desired size and shape, and then perform various processing and surface treatment.
6) Quality inspection: Quality inspection is carried out on all final products to ensure that they meet the specified standards and specifications.
The above is the general production process of tantalum metal cube. The specific production process and process may vary due to different manufacturers, regions and product specifications.
4. Packing and shipping details
1) Wrap the tantalum crucible with pearl cotton and put it into carton.
2) Our reasonable packing method can avoid collision damage of tantalum crucible during transportation and prevent collision of external goods to the product, so as to ensure the integrity of the product during delivery after leaving the factory.
- By Air transportation
- By Sea transportation
- By International express: DHL, Fedex, UPS, TNT, EMS, SF-Express
- By Train Shipment
5. Application Fields
Tantalum cube is mainly used in various radiation protection equipment and nuclear fuel, and can also be used as capacitor electrodes, high-temperature furnaces and reaction vessels in chemical laboratories. Due to the corrosion resistance, heat resistance and high density of tantalum, tantalum metal cubes are widely used in aerospace, semiconductor, medical equipment, chemical industry and high-tech fields.
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