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Powder Metallurgy
Jun 16, 2017

How do we make all the products: Tungsten & Molybdenum bar/sheet/wire/boat? 

With powder metallurgy!

 

Cold iso-static pressing machine.png

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 

specific properties.

 



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 

quality.

 

Sintering furnace.png

Rolling machine.png

Annealing  furnace.png

Typical Procedures:

Typical procedures of Powder Metallurgy.png


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