Difference between sintered iron powder and shaft furnace iron powder

The manufacturer of pellet powder introduces the difference between sintered iron powder and shaft furnace iron powder

There is little difference between sintered iron powder and shaft furnace iron powder. They are all raw materials containing iron. Both sintering and shaft furnace granulation have requirements for fineness of iron powder. Fineness is better than granulation. Here, we use quicklime as binder and bentonite as shaft furnace binder. Shaft furnace generally requires high fineness, high fineness and good pellet strength. There is no difference in price. Iron powder is generally priced according to the grade of iron.

The powder used for sintering is coarse particles. It can't be called shaft iron powder. It should be iron concentrate produced by pelletizing. This kind of iron powder has high iron grade and very fine particle size. In the pelletizing process, more than 80% of the pellets are required to be smaller than 200 mesh (74 μ m).

Scrap iron is a collection of iron particles smaller than 1 mm in size. Color: black. It is the main raw material of powder metallurgy. According to particle size, it is generally divided into five grades: coarse powder, medium powder, fine powder, fine powder and ultra-fine powder. Iron powder with a particle size of 150-500 μ m is coarse powder, medium powder with a particle size of 44-150 μ m, fine powder with a particle size of 10-44 μ m, extremely fine powder with a particle size of 0.5-10 μ m, and ultrafine powder with a particle size of less than 0.5 μ m, which can generally pass 325 mesh sieve. I. the particle size is less than 44 μ m, which is called sub sieve powder. If higher precision screening is needed, only air flow classification equipment can be used, but for some iron powders that are easy to oxidize, only jzdf nitrogen protection classifier can be used. Iron powder mainly includes reduced iron powder and atomized iron powder, which are named after different production methods.

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