Room temperature performance.
The room temperature performance of tungsten wire is reflected in the winding performance. Due to its long processing process, if the process management is not good, it is easy to cause many fine cracks or local brittleness in the tungsten wire, so that it is easy to break during winding.
The fracture of the wire caused by cracks is in the shape of whiskers, while the fracture caused by the brittleness of the wire material is in the shape of crystal surface flash.