博文

目前显示的是 六月, 2019的博文

Introduction of silicon slag

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1、 Production  Silicon slags  are the remains of the manufacture of silicon metal,the main content of which is Slicon (45%-95%). They are susually treated as waste. 2、 Useage Acturally they can be widely used in indusrtial processes, such as to be used as a good substitute for ferro silicon in steel making, which may considerably reduce production cost and resource waste. They can also be made into silicon ball and then to be used as deoxidizer and heat-riser in steel making and casting. 3、 Category As we all know,  silicon slags  are by-products made during silicon smelting. According the places where they are formed in the furnace, silicon slags may be sorted as : (1) Scum (floating on the surface of melting silicon ) :  Si :30-40% C :8-15% Fe:1.5-2.5% (2) Normal  Silicon slag  (formed between scum and melting silicon): Si:45-80% C:8%max Fe:1.5-2.5% Al:6%max Ca:5%max S:0.05%max P:0.04%max (3) High-carbon Slicon (precipitated on the b...

Factors affecting the price of electrolytic manganese metal flake

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The role of  electrolytic manganese metal flake The purity of  electrolytic manganese  sheet is very high, its role is to increase the hardness of the metal material, the most widely used manganese copper alloy, manganese aluminum alloy, 200 series of stainless steel, manganese in these alloys can improve the strength, toughness, wear resistance and corrosion resistance. The main production area of  electrolytic manganese metal flake  in China   In China's electrolytic manganese industry, Hunan, Guizhou, Chongqing junction of the manganese triangle is the concentration of Renren, Due to the early development and rapid development, now manganese ore in Xiushan, pine peach has been tight supply, coupled with the local government repeatedly collect resource compensation fees, out of the county to collect dozens of yuan / ton, ore prices accounted for 1/3 of the cost of electrolytic manganese. Chongqing, Pine Peach, Xiangxi mines are indiscriminate...

Use and production methods of silicon calcium alloys

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 Application:  Siliconcalcium deoxygenator is a steel-making auxiliary material. It is suitable for a variety of steel-making forms of deoxygenation, Anyang silicon calcium alloy price, especially suitable for the converter steel-making deoxygenation. With strong deoxygenation and desulfurization effect, can improve the liquidity of steel water, to solve the problem of water mouth tumor. Reduce the gas in the steel and reduce the mixture of steel fluid. The main components of silicon calcium alloy are silicon and calcium, which are mainly used in the chemical industry. But in addition to the chemical industry in other industries of the use of everyone also know. Let's introduce some of its other uses. Production methods of silicon calcium alloys The one-step method is divided into mixed feeding method and layered feeding method. The blending method is to add silica, lime and coking carbon together in the reduced furnace. Reduce cao and sio2 with carbon at the same ti...

silicon carbon alloy supplier

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High carbon silicon production process In the process of smelting metal silicon, there is a case where the electrodes are not uniformly heated in the furnace. As a result, the furnace bottom fails to reach the optimum temperature required to produce metal silicon. A small amount of raw materials such as silica and carbon at the bottom did not fully react. After a long period of accumulation under high temperature conditions, it forms a block on the bottom of the furnace. These large (stable traits) chunks are broken and screened, which is what we often call   high carbon silicon . High carbon silicon characteristics and uses Current market Alloys for converters have not been adjusted for a long time. The structure of traditional alloys is relatively simple. Q195 and Q235 steels adopt Mnsi+FeSi+SiAiCaBa+Sic+recarboration process. HRB335 and HRB400 steel grades adopt MnSi+Fesi+AiSi+ recarburizer production process. The traditional silicon-manganese alloy, the m...

Electrolytic Manganese flakes supplier

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Electrolytic Manganese flakes Electrolytic Manganese   purity is very high, its role is to increase the hardness of metal materials, the most widely used manganese copper alloy, manganese aluminum alloy, manganese in these alloys can improve the strength of the alloy, toughness, wear resistance and corrosion resistance of manganese and manganese alloys are iron and steel industry, aluminum alloy industry, magnetic materials industry, chemical industry and other indispensable important raw materials. Manganese is an indispensable additive in the smelting industry,   electrolytic manganese   processing into powdery is the production of four manganese trioxide main raw materials, the electronic industry widely used in the original magnetic materials is produced with four manganese oxide, the electronics industry, metallurgy and aerospace industry are required electrolytic metal manganese. With the continuous development of science and technology and the continuous improve...

Graphite Powder Specifications and uses

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Graphite powder specifications are many, graphite powder specifications to show the number of items, graphite powder specifications include 80 mesh, 100 mesh, 200 mesh, 325 mesh, 400 mesh, 500 mesh, 800 mesh, 1200 mesh, 2000 mesh, 3000 mesh, 5000 mesh, 8000 mesh, 10000 mesh, 12000 mesh. 15000 mesh and so on, graphite powder specifications are different, graphite powder use is also different, graphite powder number and its lubrication, the larger the number of graphite powder, the smaller the particle size of graphite powder, graphite powder lubrication performance is better, can be used in the production of industrial lubrication products. Graphite powder specifications and uses are associated, in the graphite powder specifications, it is not necessarily said that the larger the number of graphite powder , the smaller the particle size of graphite powder, the better the quality of graphite powder, as well as the carbon content of graphite powder and other factors, the higher th...

Why is the content of silicon in Ferrosilicon determined by specific gravity method?

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We know that aluminum sheets and irons of the same volume are lighter than iron sheets. What's the point? This is what is commonly referred to as a different proportion. In a simple sense, the specific gravity is how much gram of a cubic centimeter volume of matter has weight. The proportion of iron was measured by 7.85 g/cm 3 and the proportion of aluminum was 2.7 g/cm 3, so the iron sheet of the same volume was lighter than the aluminum sheet. The proportion of silicon was measured to be 2.4 g/cm 3, which was smaller than the proportion of iron. We know that   Ferrosilicon   is an alloy made up of silicon and iron. The same volume of two   Ferrosilicon , wherein the more silicon content, that is, the less iron content is lighter; Conversely, the less silicon content, that is, the more iron content, the heavier. Thus, the more silicon in   Ferrosilicon , the smaller the proportion; Conversely, the less silicon content, the greater the proportion. People...

Why is the carbon content in ferrosilicon very low?

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Smelting  ferrosilicon  with Coke as a reducing agent, so that more easily carbon self-baking electrode, the use of coke brick masonry out of the iron mouth and flow iron groove, sometimes with graphite powder coated ingot mold, the use of carbon sample spoon to take liquid samples and so on. In short, smelting ferrosilicon reacts from the furnace to the iron, pouring process, the opportunity to contact with carbon is obviously a lot. However,  Ferrosilicon 's carbon content is lower than 0.1﹪, generally 0.05~0.07﹪, what is the reason? The solubility curve of carbon in  ferrosilicon  with 1187 ℃ is shown in Figure 2. The figure shows that the higher the silicon content in  Ferrosilicon , the lower its carbon content. According to the data, the silicon content in Ferrosilicon  is about 30 ﹪, the majority of the carbon in Ferrosilicon is in the silicon carbide ﹙SiC﹚ state exists. Silicon carbide is easily oxidized by silica or silicon oxide in the ...