The manufacturing process of stranded tungsten wire mainly includes the following steps:
1. Raw material preparation: First, tungsten needs to be made into tungsten rods or tungsten strips as raw materials for twisted tungsten wires.
2. Stranding: The tungsten rod or tungsten strip is subjected to multiple twisting processes to form a tungsten wire with a certain diameter and length. Stranding can be performed mechanically or hydraulically.
3. Heat treatment: During the twisting process, the tungsten wire will be heated and cooled multiple times to eliminate stress and improve strength and toughness.
4. Surface treatment: In order to make the stranded tungsten wire have good corrosion resistance and aesthetics, surface treatment is required. Surface treatment can include steps such as polishing and coating.
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