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Position:Jinlin fused alumina>>Abrasive>> Reduction of Iron Powder

Reduction of Iron Powder

Author:Jinlin corundumTo update: 2016-10-15

“Iron” in our lives can be seen everywhere, but “iron” we see is not much, let alone “reduction of iron powder.” Today, we introduce the company is not common in our lives to reduce the iron powder.
I. The reduction of iron powder overview
Relative to the reduction of iron powder, we hear more of a series of iron sand products. Reduced iron powder is the use of solid or gas reductant, reduced iron oxide to make sponge-like iron.
Reduced iron powder in the reduction process is divided into a reduction and secondary reduction, a reduction is the solid carbon reduction system sponge iron, a reduction of the main process is: iron sand, rolling steel scales, etc. → drying → magnetic → grinding → Sieving → canning → into a reduction furnace → sponge iron.
Second fine reduction process: sponge iron → brush → broken → magnetic separation → secondary reduction furnace → powder → broken → magnetic separation → classification → classification → mixing → packaging → finished.
II. The characteristics of reduced iron powder
With the environmental protection abrasive – garnet, reduced iron powder to a certain extent, reduce pollution. Reduced iron powder is also known as the production of iron smelting reduction, smelting reduction method is not used in high-temperature melting furnace blast furnace iron sand reduction method, the product is similar to the composition of liquid iron and molten iron molten iron. Compared with the blast furnace ironmaking process, melting ironmaking has the following characteristics:
1. The fuel with coal instead of coke to reduce pollution;
2. Can be used with the blast furnace as the bulk of iron sand raw materials or directly with raw materials. Such as the use of slag as raw material, may not build sintering plant or pellet plant;
3. All with oxygen instead of air, oxygen consumption;
4. Can produce and blast furnace hot metal composition, the temperature is basically the same molten iron, for converter steelmaking;
5. In addition to the production of molten iron, but also produce a large number of high calorific value gas.

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III. The use of reduced iron powder
The use of reduced iron powder with the use of brown fused alumina as we know, the application of silicon carbide are not the same, the following is the use of reduced iron powder:
♦ Powder metallurgy products reduced iron powder, this industry consumes 60% ~ 80% of the total amount of reduced iron powder;
♦ Electrode used with reduced iron powder, in the skin by adding 10 to 70% of iron powder can improve the electrode welding process and significantly improve the deposition efficiency;
♦ Chemical reduction of iron powder, mainly used for chemical catalysts, precious metals reduction, such as replacement of copper;
♦ Reduced iron powder can also be used as reductive agent in organic chemistry synthesis, ink carrier of copier, etc.
♦ Cutting stainless steel powder, when cutting steel products, to the oxygen – acetylene flame in the injection of iron powder, can improve the cutting performance, expanding the scope of cutting steel, increase the cutting thickness.
With the rapid development of China’s powder metallurgy industry, powder metallurgy parts are widely used in aircraft, firearms, motorcycles, family cars, automobiles, agricultural machinery, mining, transportation and other machinery industries. With the rapid development of China’s economy, the amount of iron powder is increasing year by year.
Shizui Mountain Jinlin Fused Alumina Refractories Co., Ltd. is a diversified production plant, set the development, production, sales and service in one. The company mainly produces fused alumina products, brown fused alumina, white fused alumina, silicon carbide, bauxite, alumina ball, garnet, alumina powder, zircon sand, castable and other products specializing in the production and processing company, with a complete and scientific quality management system.
These are my company for the reduction of iron powder overview, I hope you can help. Thank you for reading, please continue to pay attention to our website!

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