The production of halogen lamp tungsten wire is a complex and precise process, involving multiple steps such as tungsten powder preparation, tungsten rod forming, wire drawing, annealing, and surface treatment. Each step must be carefully controlled to ensure that the tungsten wire can operate stably under high-temperature and high-pressure conditions, providing an efficient and long-lasting light source.
With continuous technological advancements, the manufacturing process of tungsten wire will become even more refined in the future, further improving production efficiency and quality control levels to meet the demand for higher performance and longer-lasting halogen lamps.
Technical Requirements and Quality Control
The manufacturing of tungsten wire depends not only on advanced processes but also on strict quality control to ensure its performance. Below are some key technical requirements and quality control measures:
Dimensional Accuracy:
The diameter, length, and surface finish of tungsten wire must be highly precise. Even the slightest deviation in size can impact the performance of the halogen lamp. Therefore, high-precision testing equipment and strict process control are required in production.
Purity Requirements:
The purity of tungsten wire is a critical factor affecting its performance. Impurities such as iron, nickel, and titanium can reduce the wire’s strength and corrosion resistance. To ensure high-temperature stability and longevity, tungsten wire must have a purity level of at least 99.95%.
High-Temperature Resistance:
Since tungsten wire operates at extremely high temperatures inside halogen lamps, its ability to withstand heat is crucial. During production, strict heat treatment processes must be implemented to enhance its thermal stability, ensuring it does not melt, break, or oxidize under high temperatures.
Oxidation Resistance:
Tungsten wire interacts with halogen gases inside the lamp, forming halides. Therefore, it must have excellent oxidation resistance. By optimizing production processes and selecting high-quality materials, tungsten wire can effectively resist oxidation at high temperatures, thereby extending the lifespan of halogen lamps.
