Production method of wide-size-distribution high-compact-strength tungsten powder

The invention discloses a production method of wide-size-distribution high-compact-strength tungsten powder. The method comprises the following steps that (1) ammonium paratungstate is placed in a calciner for calcination, and blue tungsten composed of 5-25% of WO3, 60-75% of WO2.9 and 10-30% of WO2.72 is obtained; and (2) the blue tungsten is conveyed into a reduction furnace for reduction, and the wide-size-distribution high-compact-strength tungsten powder is obtained. According to the method, due to fixed-content multi-phase components of tungsten oxide, the generated tungsten powder is wide in size distribution by using the non-uniform reduction principle, the reaction temperature is controlled in the reduction stage, the size distribution width span value of the tungsten powder reaches 2.5 or above, the formability is good, and the compact strength can be up to 2.5-3.5 MPa. 本发明公开了一种宽粒度分布高压坯强度钨粉的生产方法，包括如下步骤：(1)将仲钨酸铵置于煅烧炉中进行煅烧，获得WO的含量为5-25％，WO的含量为60-75％，WO的含量为10-30％相成分的兰钨；(2)将上述兰钨送入还原炉进行还原，获得所述宽粒度分布高压坯强度钨