Tungsten Alloy Wire Processing Methods

The present invention provides a method for processing a tungsten alloy wire. Specific steps are as follows:

① The ammonium paratungstate melting into blue tungsten oxide powder, then doping K2SiO3 liquid and oxide can promote the growth of the grains were substantial and rapid mixing;

② The above two raw material reduction;

③ After the material is reduced by pickling;

④ Adding rare earth elements in the material after pickling solution after burning sifting mixing, then twice restored;

⑤ Sifting mixing;

⑥ Pressed into a billet;

⑦ Sintering or sintering at twice the vertical medium frequency induction melting furnace;

⑧ Swaging blooming in turn, crystallization annealing, swaging process, recrystallization annealing, rotary forging processing, drawing, stress relief annealing;

⑨ Fine processing.

Advantage of the present invention are:

1. Machined tungsten alloy wire suitable for further processing, with good plasticity, can be processed to Φ0.30mm following specifications.

2. High product yield machined tungsten alloy wire manufactured long life.


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