Anti-shock tungsten wire is based on doped tungsten.In order to get better high temperature ductility and anti-shock performance,it must be adding small amounts of rare elements.Anti-shock tungsten wire can be divided into three categories:
(1)The anti-shock tungsten wire which pure doping Si, Al, K element.This anti-shock tungsten wire have an excellent organizational structure and a smaller high temperature sag resistance value.
(2)Adding a small amount of  Fe or Co element which based on doped Si, Al, K element.This anti-shock tungsten wire improved the high temperature resistance and anti-sag performance.
(3)Doped Si, Al, K elements and then adding a small amount of Re element to form the tungsten-rhenium alloy wire.The tungsten-rhenium alloy anti-shock tungsten wire which containing a low amount of rhenium have many excellent features,such as better organizational structure,high recrystallization temperature,high resistivity,high plasticity and excellent elongation.

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