Product Introduction
1. Features
Tungsten has the highest melting point of these refractory metals and is very strong, with extremely high tensile strength and corrosion resistance, so it has the ability to be drawn into very fine tungsten coils.
2. Production process
Tungsten coils are mainly obtained by powder metallurgy combined with pressure processing and subsequent machining. Pure tungsten powder is used as raw material to process tungsten coils through molding, pre-sintering, complete sintering, extrusion processing, drawing and other processes.
3. How to use
The use method of tungsten coils is divided into: high temperature performance (the working temperature of tungsten coils for incandescent lamps is usually between 2300-2800 °C. Generally, the higher the power of the bulb, the higher the working temperature of the filament. It can be seen that the working temperature of the tungsten coils is higher. The temperature far exceeds the recrystallization temperature of tungsten coils). Room temperature performance (the room temperature performance of tungsten coils is reflected in the winding performance. Due to its long processing process, if the process management is not good, the tungsten coils will easily produce many small cracks or become locally brittle, so that the wire is very difficult to be wound. It is easy to break. The fracture of the wire wound caused by the crack is hair-like, while the fracture caused by the brittle wire is crystal-like. Consistency of the wire diameter (the poor consistency of the tungsten coils diameter is an important reason for the photoelectric parameters of the incandescent bulb to be out of tolerance, and some will also affect the service life of the bulb).
4. Execution standards and processing scope
Our supply standards are GB and ASTM, and we can also customize products according to customer requirements. The diameter of 0.1-5.0mm*L mm can be processed. The reason why we are so confident is that on the one hand, we have complete production equipment, strong technical force and excellent professional knowledge; on the other hand, it is because of the support of national policies.Welcome customers to inquire!
Hot Tags: tungsten coils, China, suppliers, manufacturers, factory, buy, price, discount, in stock, made in China
You Might Also Like
Send Inquiry
