Tantalum wire in coils is one of the tantalum products. Tantalum (Tantalum) is a metal element with the symbol Ta, atomic number 73, density 16.68g/cm³, and a melting point of 2980°C. It is the third most refractory metal after tungsten and rhenium. Pure tantalum has a slightly blue color and excellent ductility. It can be rolled into very thin (less than 0.01 mm) plates in the cold state without intermediate annealing. The corrosion resistance of tantalum is the same as that of glass, and only fluorine, hydrofluoric acid, sulfur trioxide (including fuming sulfuric acid), strong alkali, and certain molten salts have an effect on tantalum at medium temperature (about 150°C). Tantalum wire is stable in air at room temperature, and when heated above 500°C, it will accelerate oxidation to form Ta2O5. Tantalum has a series of excellent properties such as a high melting point, low vapor pressure, good cold working performance, high chemical stability, strong resistance to liquid metal corrosion, and a large dielectric constant of the surface oxide film. It is widely used in electronics, metallurgy, steel, chemical industry, and hard alloy, It has important applications in high-tech fields such as atomic energy, superconducting technology, automotive electronics, aerospace, medical care, and scientific research. At present, the main application of tantalum is tantalum capacitor. Tantalum must occur in nature together with niobium, which has similar chemical properties and is generally stored in tantalite, niobite, and coltan. Brazil and Australia are the two countries with the most abundant tantalum resources. Tantalum wire (tantalum metal) is also one of the refractory metals.
1. Tantalum wire properties
|
Grade(UNS) |
Annealed |
||
|
Tensile strength min, psi (MPa) |
Yield strength min, psi (MPa)(2%) |
Elongation min,% (1-inch gage length) |
|
|
Pure Ta (RO5200,RO5400) |
30000 (207) |
20000 (138) |
20 |
|
Ta-10W (RO5255) |
70000 (482) |
60000 (414) |
15 |
|
Ta-2.5W (RO5252) |
40000 (276) |
30000 (207) |
20 |
|
Ta-40Nb (RO5240) |
35000 (241) |
20000 (138) |
25 |
2. Specification & Tolerance
|
Diameter mm |
Ø0.10~Ø0.15 |
Ø0.15~Ø0.30 |
Ø0.30~Ø0.10 |
|
Tolerance |
±0.006 |
±0.007 |
±0.008 |
|
Ovality |
0.004 |
0.005 |
0.006 |
3. Manufacture Processes
The production process of tantalum wire in coils can be divided into the following steps:
1) Raw material preparation: A large amount of tantalum metal powder and other materials need to be prepared for the next step of the manufacturing process.
2) Melting: The tantalum powder is mixed with other metals and melted in a high-temperature furnace to obtain pure tantalum metal.
3) Wire drawing: Pass the pure tantalum metal through the drawing machine and the wire drawing machine, first cut the metal rod into raw materials of appropriate size, then heat the raw materials through tungsten wires, and then draw them into tantalum wires that meet the specifications.
4) Manual processing: The quality of the drawn tantalum wire is already very high, but further manual processing is required to achieve higher quality requirements.
5) Inspection: After the tantalum wire is produced, quality inspection is required to ensure that the product meets industry standards and customer requirements.
6) Packaging: After the tantalum wire passes the quality inspection, it needs to be packaged to prevent contamination or damage during transportation and storage.
7) Delivery: After the tantalum wire is packaged, it can be transported to the customer's desired place...
4. Our Factory
5. Application Fields
Tantalum wire in coils is widely used in the following fields of application:
1) Capacitor: Tantalum wire is one of the main construction materials of high-performance capacitors, which can withstand high electric field strength and high temperature, and has good stability and reliability, so it is often used in high-frequency circuits, high-voltage circuits, and electronic equipment with high operating temperature.
2) Aerospace industry: Tantalum wire has the characteristics of high-temperature resistance, corrosion resistance, and wear resistance, and is suitable for manufacturing gas turbine blades, turbine blades, and other components in the aerospace field.
3) Medical devices: Tantalum wire is non-toxic to tissues, corrosion-resistant, and bio-migration-resistant, so it is often used in the manufacture of medical devices such as artificial joints, dental implants, and orthopedic brackets.
4) Chemical industry: Tantalum wire has chemical stability, high-temperature stability, and excellent corrosion resistance, and is suitable for manufacturing chemical reactors, heat exchangers, and other equipment.
Hot Tags: tantalum wire in coils, China tantalum wire in coils manufacturers, suppliers, Tantalum Crucible
