How important is the production of ferrotungsten powder?

Ferro tungsten is a very important material in industry, and its application is very wide. It can be seen in various industrial fields such as mining, metallurgy, machinery, construction, transportation, electronics, aerospace and military industry.

The production and production of ferro-tungsten powder, in the traditional production method, mainly uses wolframite concentrate as raw material, mixed with additives according to a certain ratio, and then smelted in an electric furnace. However, this method is no longer applicable nowadays. In today's production of ferro-tungsten powder, new developments have been ushered in with the important advancement of science and technology.

1. Preparation: First, the tungsten-containing waste is purified by metal to separate the valuable metals in the waste, and at the same time, the tungsten content is increased and controlled at 60-70%.

2. Put the purified materials into a roasting furnace for drying and roasting, controlling the temperature at 500°C, roasting for 8 hours, and then cooling to room temperature.

3. Calculate the required batching quantity based on the tungsten content in the material, and prepare the material according to the following weight ratio: Tungsten-containing waste after treatment: 60～70% ferrosilicon: 15～19% aluminum powder: 14～17% nitric acid Sodium: 2 to 5%, calcium fluoride: 1 to 2.5%.

4. Put the above materials into the mixer and mix for 30 minutes to make the materials fully mixed.

5. Put the mixed materials into the prepared reaction furnace several times, first make the volume of the mixed materials account for one-third of the volume in the reaction furnace, ignite, and control the furnace temperature at 3400～3600℃. During the process, gradually add the mixed materials. When the volume of the molten pool in the reactor reaches three-quarters of the volume in the reactor, open the discharge port at the bottom of the reactor to slowly release the solution and let it flow naturally to the nitrogen On the plate of the plate centrifuge under protection, the solution is thrown into the collection chamber around the centrifuge plate through the action of the high-speed rotating centrifuge plate.

6. When the temperature is cooled to room temperature, collect the materials in the collection chamber, and use the wind sorting and screening equipment to obtain spherical tungsten iron powder with uniform particle size.