Ammonium Paratungstate Preparing Submicron Spherical Tungsten Powder

Tungsten powder is not only the raw material of tungsten carbide, but also for tungsten alloy. It can be applied in machining, mining explore, geological drilling, construction tools, military area, etc. In order to promote the property of materials, prepare submicron spherical tungsten powder is a tendency.

Submicron spherical tungsten powder after sintering can promote the hardness and density of metal materials which improve its property. If the distribution of submicron tungsten powder is closed, materials after sintering will still be fine particles, it will affect mechanical property of materials. Methods for preparing submicron tungsten powder include ball milling, reduction under dry atmosphere, hydrogen reduction, tungsten acid reduction, etc. These methods have a lot of disadvantages such as it is of high cost and low producing efficiency which is not fit for industrial production.

Ammonium paratungstate preparing submicron spherical tungsten powder is more environmental friendly, easy to operate, the parameter is under easy control, the equipment is accessible and it is more suitable for massive production.




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