How do we make all the products: Tungsten & Molybdenum bar/sheet/wire/boat?
With powder metallurgy!
So what is powder metallurgy? It is well known that nowadays most
industrial metals and alloys, such as steels, aluminum and copper, are
produced by melting and casting in a mold. In contrast, powder
metallurgy does away with the melting operation and the products
are manufactured by compacting metal powders which are then
subjected to a heat treatment (sintering) below the melting
temperature of the material. The three most important factors in the
field of powder metallurgy are the metal powder itself as well as the
compacting and sintering operations. We are able to control and
optimize all these factors in-house.
Why do we use powder metallurgy? Powder metallurgy allows us to
produce materials with melting points of well over 2,000 °C. The
procedure is particularly economical even when only small quantities
are produced. In addition, by using tailor-made powder mixes, we can
produce a range of extremely homogeneous materials endowed with
The tungsten powder is mixed with the possible alloy elements and
then filled into molds. The mixture is then compacted in the cold
iso-static pressing machine. The resulting pressed part is then sintered
in the furnace. During this process, the part acquires its density and
its microstructure forms. The very special properties of our materials -
such as their excellent thermal stability, their hardness or their flow
characteristics - are due to the use of the appropriate forming
methods, for example forging, rolling or drawing. Only when all
mentioned steps dovetail perfectly, can we achieve our exacting
quality demands and manufacture products of outstanding purity and
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