What Is The Use Of Secondary Reduction Iron Powders
What is the use of Secondary Reduction Iron Powders
Secondary Reduction Iron Powders, gray or black powder, also known as "double sorbent", can absorb moisture and oxygen in the air, often used in food preservation. The Secondary Reduction Iron Powders is usually produced in the hydrogen flow or carbon monoxide airflow under high heat condition, the main component is the loose single - iron. Because the Secondary Reduction Iron Powders itself is powder, and its microstructure is very loose, its surface area is very large. It is often used as a quality reducing agent in chemical production and laboratory operation.
Second reduced iron powder because of easy oxidation, so the grinding classification must be in the state of shielding gas, under general for superfine grinding is used when grading JZDB crushing classifier for superfine grinding classification nitrogen protection, if only to second reduced iron powder for high precision classification JZDF nitrogen protection classifier can be used simply.
In addition a hot bags on the market sales, its structure is two layers of bags, outer for airtight packaging, lining for a full second reduced iron powder air bag, just open the outer packing, when using the air to enter, second reduced iron powder can react instantly with oxygen to produce heat, can keep the temperature around 45 degrees for up to 4 hours. The principle is also the characteristics of Secondary Reduction Iron Powders and oxidant reaction.
High grade Secondary Reduction Iron Powders is mainly used in powder metallurgy to produce high quality Secondary Reduction Iron Powders. The Secondary Reduction Iron Powders is the essential raw material for powder metallurgical products, and its consumption in this area accounts for 70% of the total consumption of the Secondary Reduction Iron Powders. The automobile industry is the largest user of powder metallurgy products. Currently, 1 vehicle consumption is about 7 kg. Iron powder is also an important raw material for the development of high efficiency electrode manufacturing. In addition, iron powder in flame cutting, degassing materials, electrostatic printing, the developer with carrier, the body hot compress bag, energy-saving battery, alloy elements added, grain seed selection, catalyst, and other fields of application, has been developing rapidly in recent years, the consumption of the rising trend.
World of iron-based powder metallurgy technology development by leaps and bounds, with the characteristics of resources in China, with a low carbon boiling rolled steel and iron scale as raw material to produce second reduced iron powder make the iron powder production scale and quality of our country are limited. And is suitable for the Secondary Reduction Iron Powders application resource is very rich, compared with fish scale, both in terms of improving iron powder production, or increase the iron powder physical, chemical, metallurgical performance has a great advantage. The more pure the raw material entering the reduction system, the less impurity content is, the higher the quality of the Secondary Reduction Iron Powders. In recent years, in Western Europe, North America and Japan, 80% of the Secondary Reduction Iron Powders is produced by high grade Secondary Reduction Iron Powders, while most factories in China are made of iron scale. Therefore, even at the domestic advanced level of Secondary Reduction Iron Powders, compared with the foreign advanced level, there is a certain gap. High grade Secondary Reduction Iron Powders and iron scale can be used as raw materials for the second reducing iron powder, but the former has obvious advantages.
(1) the iron scale of Secondary Reduction Iron Powders must be the steel scale of low carbon rimmed steel, whose source is limited and the chemical composition is unstable. The high grade Secondary Reduction Iron Powders has the characteristics of high purity, low impurity content and stable performance.
(2) high grade Secondary Reduction Iron Powders is an ore processing product with fine grain size, so the reduction speed is fast and the reduction efficiency is high.
(3) using high grade Secondary Reduction Iron Powders can eliminate the crushing, magnetic separation, drying and other raw material handling processes needed for iron scales.
With Secondary Reduction Iron Powders as raw material to produce iron powder for the significance of iron-based powder metallurgy industry is particularly important, it relates to the quality of iron-based powder metallurgy materials and products can continue to improve, the auto parts with high strength structure will be quality problems such as production, also involves the second reduced iron powder industry in China in the future if we can normal survival essential problems, such as development and competition.