What is the sintering process of tungsten carbide? Briefly speaking,
tungsten carbide powder is gathered and then heated to a certain
temperature in the sintering furnace; after that, keeping it for a
period of time; finally, the powder is cooled down to become the
desired tungsten carbide materials. This is the hole sintering process
of tungsten carbide.
During the sintering process of tungsten carbide, the changes of materials
are as follows:
One change is that, with the increase of temperature in the initial stage,
the components of tungsten carbide powder are gradually boiled away. At
the same time, the components give carbon to the sintering parts to some
degree. The amount of increased carbon determined by the type and number
of components, it can also influenced by the sintering process of tungsten
Another important change of materials can also be seen, in the sintering
process of tungsten carbide, oxide of the powder surface is reduced. If
the sintering process is occured in the vacuum environment, chemical reaction
between carbon and oxide will not be so strong. During the process, contact
stress between powder particles is also gradually decreased, which will leads to
the metal powders begin to recovery and recrystallize.
In conclusion, sintering process of tungsten carbide is the main method of
manufacturing technology of hard alloy. It is hard to controll and operate,
as you must guarantee the components of the desired tungsten carbide materials.