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Manufacturing Processes: Canada
Molten iron is transferred directly from the RTFT smelter to our iron powder plant. This high purity liquid iron is granulated by striking a stream of the molten metal with high-pressure water jets. The resulting iron granules are dried and ground to a controlled size distribution.
Next, the powder passes through decarburizing furnaces where it is exposed to controlled heat in a reducing atmosphere, allowing it to meet the desired final chemical and metallurgical properties. Once through the furnace, the powder is milled and homogenized in 36 metric ton (40 ton) lots.
Additives, such as copper, graphite and lubricants can then be mixed with the powder into customized premixes or binder-treated premixes (FLOMET), as specified by our customers. Finally, the powder is packaged and shipped to our customers throughout the world.
Water Atomised Steel Powders
In the case of water atomised steel powders, molten iron is first converted into steel at RTFT’s state-of-the-art K-OBM oxygen steelmaking converter. Final alloy additions and chemistry adjustments are made after transferring the molten steel to a ladle furnace in our water atomising facility.