Many countries and factories are attracted to Iron mill scale shell products and are always looking for the best suppliers to buy this product in tons at the right price. Ferrosilicon factories are one of the main consumers of Iron mill scale shells. The Iron mill scale shell is a waste product from the slab's rolling and refining unit. It can be said that about two percent of the steel entering the production lines of these units is always discharged from the production line in the form of Iron mill scale shells and as waste. Of course, the development of this product in different industries and different areas has fortunately made this product a bestseller. Many shell rolling plants supply the obtained Iron mill scale to ferrosilicon production plants. 
If you plan to buy this product for your melting unit, check the product analysis and get the best conditions in the first step under the supervision of the quality control department and your production specialist. You can contact us for more information. What is the oxide shell made of? During hot rolling, two types of viscous and brittle oxide shells are formed. The structure and growth of the oxide shell depend on the surrounding atmosphere, the chemical analysis of the steel, the temperature of the raw materials and the heating time. The oxide crust on the surface of the base metal is composed of ferrite, magnetite and hematite. At temperatures below 570 degrees, only hematite and magnetite are present, while sirerite is not stable at this temperature. However, at temperatures above 570 degrees, the inner layers of sirerite are also associated with magnetite and hematite. Oxidation Shell Recovery Recycling of oxidation shell saves financial costs, increases productivity and meets environmental requirements. In addition, the cost of purchasing tens of thousands of tons of iron scrap and iron ore has been reduced. During casting and modification of sheet-to-sheet rolling, oxide shells are separated from the product surface at high temperatures. During the hot rolling of ingots, approx. 2% of the rolled steel line in the form of oxide crusts. Purity percentage of Iron mill scale shell Depending on the purpose of the Iron mill scale shell, the ratio of the number of flakes of the soft and earth oxide shell to the ingot shell, the thickness of the flakes, the roughness of the flakes and other characteristics are also important. 
Use of oxide shell Recycling these shells is very important from an economic point of view, and one of the most important ways to recycle them can be considered as reviving them using rejuvenating agents. Factors such as coal, coke, graphite, etc. operate in a fixed bed and at a specific temperature, resulting in the recycling of oxide shells. Parameters such as temperature (T), reductant particle size (D), coal to shell ratio (M), oxidizer and reductant type of the shell prior to reduction all affect the degree of reduction. This crust is usually blue-grey and has a very thin coating of hematite. Among the many uses of this shell, the following can be mentioned: Medicines, printing inks, coloring of building materials, concrete and construction materials, manufacture of colored glass, plastics and polymers, ceramic polishes, paper, catalysts, rust protection, bricks and tiles, animal feed, magnetic ink, saroj, electronics, marine masts, magnetic recording equipment and tapes , transmission towers, storage tanks, industrial design, oil platforms, etc. 
Various uses of Iron mill scale shells One of the most important uses of oxide shells is in the production of ferrosilicon. Ferrosilicon belongs to the category of metal alloys and its constituents are iron and silicon. The ratio of iron to silicon in ferrosilicon varies from 15% to 90%. Ferrosilicon is used in the casting process to refine steel structures. Probably the largest customers for Iron mill scale shells are ferrosilicon production facilities, which purchase this material directly from steel mills. Most of these turbines secure the supply for many years by entering into long-term contracts with nearby turbines. Iron mill scale coatings in steelmaking plants Depending on the percentage of iron grade, more than 70% of the Iron mill scale shell can be recovered in the steelmaking chain in the smelting furnace. Steel making furnaces include electric arc furnaces, induction furnaces and blast furnaces. Blast furnace smelting may use Iron mill scale shells, while arc furnaces and induction furnaces must be operated with care and under the control of the appropriate factory quality department. Check the quality and percentage of iron used in the molten Iron mill scale shell and measure the percentage of interfering elements in the oxide shell; therefore, the Iron mill scale shell sold for factory smelting is of high purity. Of course, this should not be forgotten, oxide shells are also used in other areas of industry. 
iron mill scale supplier price
Iron mill scale is used in the non-ferrous metal industry, factories and companies use it as a flux. Many suppliers and factories are working with this product for a very long time and it is important to say that the price of them are very important in this industry. Iron mill scale shell for granulation Many factories use oxide shells during processing and granulation, and this material is widely used in this industry. In this case, the high purity of the product and the low content of fluff and dust in the product are very important, and should also have a high content of flakes. Since bar shells are used for pelleting of a certain size, the correct thickness of pellets should be considered. transport of oxide shell Oxidation crusts are transported in bulk for domestic sale or export, and 10,000, 30,000 and 50,000 ton ships are used to transport these commodities. In addition, the internal transport of this product is carried out by a compacting, jacking machine. Being mostly iron, the oxide shell has a very high resistance. As we mentioned before, recycling this product is very important from an economic point of view and can be done in different ways. It is good to know that the outer coating of the oxide shell cannot be seen with the naked eye, and the ferrous metal particles used in its construction make this metal harder. 
The iron mill scale is a product separated from the surface of steel ingots, steel bars, and other products at high temperatures. The product is made of steel ingots, so that the hot ingot is exposed to water and air jets on the surface. During hot rolling of the ingot, 2% of the steel is removed from the product surface in the form of an oxide crust. Parameters such as temperature (T), reducing agent particle size (D), coal-to-shell ratio (M), the degree of oxidation of the shell before reduction, and the type of reducing agent all affect the degree of reduction. The Iron mill scale shell, which is left as waste, wastes some of the iron added to the hot rolling line, and the term "scratch" increases production costs. Oxidation crusts are mainly present in the production of hot-rolled products, except when galvanized sheets are melted in protective furnaces. There is a way to recycle the shell, which is to regenerate it using a regenerator. Regenerants include (charcoal and graphite). Recycling of these shells is very important from an economic point of view, oxide shells usually include: magnetite (Fe3o4), hematite (Fe3o2), magnetite also contains metal particles and sometimes Feo residues, which makes metals harder. Applications of oxide shells are very large, to name a few: plastics and polymers, rubber, paper, concrete and building materials, mortar, tiles, ceramic polishes, pharmaceuticals, cosmetics, preparation of stained glass, dyeing Construction, rust prevention, catalysts, medicine, rigid and flexible ceramic magnets, high temperature friction modifiers such as: brake pads, magnetic printing inks, glass and porcelain pastes and fine nutrients for soil, electronics, magnetic recording equipment and magnetic tape, MICR, achromatic copier and fax toner pigments, coal washing, bridge Steel structures, offshore masts, high voltage transformers, transmission masts, industrial design, storage tanks, etc. Small controls. 
The price of oxide shells is bought and sold according to the quality of the goods per ton. We determine the price of Iron mill scale shells by examining several characteristics: the iron purity percentage of the shell, the ratio between smoothness and roughness of the oxide shell and the number of flake fragments of the ingot shell, depending on the type of application, the size of the oxide shell, Specifications and other characteristics such as workpiece thickness, dimensions, workpiece roughness, etc. also become important. What is Iron mill scale? How familiar is he with this drug, have you observed it closely? Probably. You've seen Iron mill scale many times around, you know it's formed by the reaction between iron and oxygen, usually orange, maybe a little red, sometimes yellow and brown; but you hardly know the name Iron mill scale, because it is commonly called rust; but this rust, which will be further described by its scientific name Iron mill scale, exists in different types. So far, 16 kinds of Iron mill scales have been found in the world. Natural Iron mill scales are made from hematite or red Iron mill scale minerals, limonite (yellow to brown) and magnetite or black Iron mill scale. Well, you must be asking about natural Iron mill scale? ! Yes, that means there is synthetic Iron mill scale. This material is also made from chemical materials, and by making synthetic Iron mill scale from chemical raw materials, the size, distribution and shape of the particles can be repeated with very high accuracy. It can thus be expected that the uniformity, quality, color and chemical purity of the Iron mill scale particles will increase. Iron mill scale is one of the materials used in various industries. 
Where is Iron mill scale produced? Iron mill scales are produced naturally and synthetically. These pigments are produced in many countries, we can top Cyprus, France, Iran, Italy and Spain, adding that they have many sources of natural Iron mill scale. Meanwhile, major countries producing synthetic Iron mill scale include the United States, India, China and Spain. Types of Iron mill scales According to the relationship between chemical composition and ferrite composition, three types of Iron mill scales can be introduced. Iron mill scale II Iron trioxide Iron mill scales II and III Iron dioxide, which makes up about 9 percent of the mantle, is black. This substance can also be produced synthetically by thermal decomposition of ferrous oxalate. Because the substance is non-toxic, it is often used as a pigment in cosmetics, but oxide III exists in the form of the mineral hematite and is used in many industries. It is especially used in steelmaking, minerals, concrete and architectural colors and even cosmetics. Iron mill scale is relatively inexpensive, is highly resistant to discoloration when exposed to sunlight, and is very stable under normal environmental conditions. It is important to note that artificial pigments are more durable and stable than natural pigments. For this reason, more natural pigments are used as supports and base colors. 
Other types of Iron mill scales include mica hematite, a material that gives paints and coatings unique properties. In this type of Iron mill scale, its particles are placed on the surface in flake-like form, which acts as protection against moisture and gases. In addition, the resulting coating prevents corrosion, metal rust, blistering, cracking and peeling of paint layers. Iron mill scale pigments, because they are ten times smaller than cement particles, are easily placed in their particles and are responsible for the uniformity of cement and concrete surfaces covered with these pigments. It should be noted that chemical pigments are highly resistant to alkaline substances and give a high gloss to the surface. A point to pay attention to when applying to concrete and cement surfaces should choose a standard dosage and dosage so that it does not affect the structure and properties of concrete, and is easy to penetrate. The advantage of Iron mill scale is that its types can be easily combined to produce a new type of pigment. Another obvious advantage of Iron mill scale is that it is non-toxic. Properties of yellow Iron mill scale In terms of particle fineness, this class belongs to the category after red and black Iron mill scales. It has a high percentage of purity (85% iron). Yellow Iron mill scale is mainly used where original character or original color is required.
- Yellow Iron mill scale has high hiding power.
- Absorbs UV rays well.
- It is easily dispersed in water and solvents.
- It is used for similar applications as red pigments.
- Properties of Black Iron mill scale
The main and most commonly used sources of this material are iron and ceramic sources, especially where pristine black is desired. One of the important differences between black Iron mill scale and its red type is its magnetic properties. Black Iron mill scale is ferrimagnetic, that is, it will not become a magnet without a magnetic field. The boiling point of the black Iron mill scale is 2623 degrees Celsius. The iron mill scale melts at a temperature of 1597 degrees Celsius. This material is a strong conductor of electricity (stronger than red Iron mill scale). It is corrosion-resistant. One of the main uses of this pigment is in the coating of non-ceramic materials, household appliances, and urban steel structures such as bridges. Properties of Iron mill scale Orange In terms of grain size, it is almost coarser. This material is usually available in the form of compressed dry powder in the market and has the characteristics of high strength, high colorability, high alkali resistance, non-toxicity and non-flammability. The Orange Iron mill scale is commonly used in landscaping, plastering, flooring, concrete staining, soap making, and some foods. Properties of brown Iron mill scale The substance is a combination of yellow, black, and red Iron mill scales. Judging by the size of the pigment, it belongs to the middle level and is mostly used for painting concrete, bricks, cosmetics, health products, and other industries. Brown Iron mill scale is non-toxic, easily soluble in water, and has high UV stability. Pigments and Iron mill scales are also found in green, blue, and ochre, which have almost similar properties.