博文

目前显示的是 五月, 2019的博文

Properties and uses of Ferrosilicon

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Ferrosilicon  is a widely used ferroalloy variety. It is silicon and iron in a certain proportion of  ferrosilicon  alloy, is an indispensable material for steelmaking. Ferrosilicon  is the deoxygenation agent of steelmaking, is the alloy agent of silicon Steel, smelting spring steel, heat-resistant steels, but also to add a certain number of ferrosilicon as alloying agent. Production practice has proved that the oxygen in steel can significantly worsen the properties of steel and reduce the mechanical properties of steel. Therefore, deoxygenation must be necessary in the steelmaking process. Oxygen is present in steel in the ﹙FeO﹚ state of ferrous oxide. Silicon is an element with a strong ability to bind to oxygen. When Ferrosilicon is added to the steelmaking process, the following deoxygenation reaction occurs: 2FeO+Si=2Fe+SiO2 Silica ﹙SiO2﹚ is a product of deoxygenation, it is lighter than steel, floating steel liquid surface into the slag, thu...

Use of ferro silicon in steel industry

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Ferro silicon  is an essential deoxygenation agent in the steelmaking industry. In Torch Steel,  Ferro silicon  is used for precipitation deoxygenation and diffusion deoxygenation. Brick iron is also used as an alloying agent in steelmaking. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of steel, improve the magnetic conductivity of steel, and reduce the hysteresis loss of transformer steel. The general steel contains 0.15%-0.35% silicon, the structural steel contains silicon 0.40%~1.75%, the tool steel contains silicon 0.30%~1.80%, the spring steel contains silicon 0.40%~2.80%, stainless acid-resistant steel contains silicon 3.40%~4.00%, heat-resistant steels contain silicon 1.00%~3.00%, Silicon steel contains silicon 2%~3% or higher. High silicon  ferrosilicon  or silicone alloys are used as reducing agents for the production of low carbon ferroalloy in the ferroalloy industry. Ferrosilicon into ca...

how do we manufacture ferro silicon

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how do we manufacture ferro silicon ? High-quality  Ferrosilicon  production methods, there are 5 kinds, one is the use of selected furnace to produce high-purity  ferrosilicon , the second is the use of external blowing chlorine refining method to produce high-purity and low-carbon  ferrosilicon , the third is the use of furnace external blowing oxygen method to produce high-purity and low-aluminum ferrosilicon Five is the use of selected furnace method to produce low-aluminum, low-carbon ferrosilicon. The production of high purity  Ferrosilicon  by using selected furnace material is mainly through the selection of quartz stone and petroleum coke, wood block, charcoal and silicon steel sheet raw materials for smelting production, in order to reduce the content of impurity elements in the product. Because of the large fluctuation of raw material quality, the smelting production process inevitably brings some impurities, so the reduction rate of impurity ...

Casi cored wire

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We’re in position to supply CaSi Cored Wire ,Origin-China. Calcium silicon alloy is a compound alloy made up of elements silicon, calcium, and iron, is an ideal compound deoxidizer, desulfurization agent. At present calcium alloy can be used instead of aluminum for final deoxidation, is applied to high-quality steel, special steel and special alloys production. Such as rail and low carbon steel, stainless steel, steel and nickel base alloy, titanium alloy and other special alloy. Calcium Silicon Cored Wire, casi cored wire ,calcium silicon alloy cored wire is made from calcium silicon powder. 13mm CaSi Cored Wire Vertical Axis Specification:Ca 28-32%,Si 55-60% Wire Diameter:13+/-0.8mm Powder Weight:220+/-10g/m Maximum Coil Outside Diameter:1,100mm Minimum Coil Inside Diameter:600mm Absolute Maximum Coil Height:1,100mm Maximum Coil Weight:2,000kg Sheath Thickness:0.4-0.45mm Other sizes and specifications are available on request.

silicon 441 specification

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silicon 441 specification Model Number:   Silicon Metal 411  Chemical Composition:  Si Fe C P S Al  Supply Ability:  3000 Metric Tons per month  Min Order Quantity:  20 Metric Ton  Description:  Silicon metal is silver gray or dark gray powder with metallic luster, which be of high melting point, good heat resistance, high resistivity and superior oxidation resistance, it's called "industrial glutamate", which is an essential basic raw material in hi-tech industry. Chemical Composition: Garde Composition   Si Content(%) Impurities(%)     Fe Al Ca P 1501 99.69 0.15 0.15 0.01 ≤0.004% 1502 99.68 0.15 0.15 0.02 ≤0.004% 1101 99.79 0.1 0.1 0.01 ≤0.004% 2202 99.58 0.2 0.2 0.02 ≤0.004% 2502 99.48 0.25 0.25 0.02 ≤0.004% 3303 99.37 0.3 0.3 0.03 ≤0.005% 411 99.4 0.4 0.1 0.1 ≤0.005% 421 99.3 0.4 0.2 0.1 - 441 99.1 0.4 0.4 0.1 - 551 98.9 0.5 0.5 0.1 - 553 98.7 0.5 0.5 0.3 - silicon metal 441 Application:  ...

where to buy graphite powder?

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Henan star is one of the best graphite powder suppliers in China. With the support of our state-of-art warehousing unit we are offering defect-free Fine Graphite Powder . Our team procure only pure and quality-approved graphite from certified vendor base to formulate the powder. This range of products is widely used in various industries worldwide. Our research professional also try to improve the quality of the products. Outstanding efficiency Durability Accurate formulation High Carbon pick up to 95% as compared to 60-70% of Coconut Shell Charcoal Controlled Low Sulphur level - ideal for production of S.G. Iron Castings Consistent Sizing achieved which provides Controlled Environment Dissolve at lower Temperatures & low moisture Saves Energy & Time as compared to Coconut Shell Charcoal Excellent Productivity & Time Saving due to the reliable and consistent carbon pick-up. 1. graphite powder Specifications: Product Fixed Carbon Sulphur Volatile Matter Sizes A...

petcoke specification

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Petroleum coke  Other name : CPC,carbon additive, carburizer, carbon raiser, carburant  1.spec: Fixed carbon: 90% / 98.5% / 98% / 97% / 96% / 95% Sulphur: 0.05%  V.M: 0.5% max /0.7%max / 1%max Ash: 4% max / 3%max /2% max / 1%max / 0.7%max / 0.5%max  Moisture: 1% max Size: 0~1-10mm 2.Packing:  1MT plastic woven bags or according to your requirement. 3.Products brief:  graphitized petroleum coke is Is widely used in steel industry carburant, carburant, casting precision casting industry reduction inoculant reductant, metallurgy industry, refractory materials and other fields. . Petcoke  uses Petcoke , depending on its quality, is used in the production of graphite, smelting and chemical industries. Low sulfur, high quality cooked coke, such as needle-like Coke, is mainly used in the manufacture of ultra-high power graphite electrodes and some special carbon products; needle Coke is an important material for the development of new technology of e...

igh Carbon Silicon,which is good substitute for FeSi in steelmaking.

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High Carbon Silicon ,which is good substitute for FeSi in steelmaking. The main components are silicon and carbon. Generally required between silicon 40-70%. The carbon content is between 10-25%. Other ingredients are: silica, phosphorus, sulfur and so on. It can replace ferrosilicon, silicon carbide, carbonizer. And Reduce the amount of deoxidizer. It can be used in converter smelting deoxidation alloy process. 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. High carbon silicon can be used in the replacement of ferrosilicon and other alloys. In...

silicon metal supplier in China

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Silicon Metal is widely used in smelting ferrosilicon alloy as alloying element in iron and steel and as reducing agent in many metal smelting. Henan star is one of the best silicon metal suppliers in China silicon metal Supply Silicon Metal 553/441,10-100mm,Origin-China We’re in position to supply Si Metal,10-100mm,Origin-China. 1.Si Metal 441,Si 99%min,Fe 0.4%max,Al 0.4%max,Ca 0.1%max 2.Si Metal 553,Si 98.5%min,Fe 0.5%max,Al 0.5%max,Ca 0.3%max 3.Si Metal 421,Si 99.2%min,Fe 0.4%max,Al 0.2%max,Ca 0.1%max 4.Si Metal 3303,Si 99.3%min,Fe 0.3%max,Al 0.3%max,Ca 0.03%max 5.Si Metal 2202,Si 99.5%min,Fe 0.2%max,Al 0.2%max,Ca 0.02%max Size: 100mesh, 3-10mm, 10-50mm, 10-100mm etc Other sizes and specifications are available on request. silicon metal Interested parties are welcome to have further business talk with us. Welcome to our factory. Please contact us at star15@alloyssi.com Web: www.sino-stargroup.com

Si Briquette,Substitute For FeSi, New Deoxidizer

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Henan Star Metallurgy Co., Ltd. is one of the highest quality manufacturers of silicon briquette in China. http://www.pupanferroalloys.com/products/silicon-briquette/ We are promoting new technical product- Silicon briquette ,new deoxidizer which is good substitute for FeSi in steelmaking. http://www.pupanferroalloys.com/products/silicon-briquette/ Silicon briquette is the new product that our company developed. It’s a good substitute for Ferro silicon in steelmaking, which has advantage in reducing the cost of production and reusing resource.Now there are far and wide markets in domestic and oversea market.castable, SiC deoxidizing agent, compound recarburizer and Mn-C ball. http://www.pupanferroalloys.com/products/silicon-briquette/ All specifications can be adjusted according to the customer's demands. Silicon briquette   Chemical Compositions A)Si 50%min,C 5%max,Al 4%max B)Si 60%min,C 5%max,Al 4%max C)Si 70%min,C 4%max,Al 4%max Grain size:50mm×50...

Manufacturers directly supply casi cored wire

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Henan Star Metallurgy is one of the highest quality  casi cored wire   suppliers in China. With the development of steelmaking industry, high quality alloy steel, variety of steel growth, continuous casting length of the gradual ultra-high, furnace refining technology continues to improve, to promote the successful development of feeding line technology. http://www.sino-stargroup.com/products/casi-cored-wire/casi-cored-wire.html The use of feeding line technology has greater advantages than powder spraying and direct addition of alloy blocks. Core technology is a kind of out-of-furnace refining method that has sprung up this year, and it is widely used in the technology of feeding silk in modern steelmaking. casi cored wire  is used in steelmaking to purify molten steel, change the shape of inclusions, improve the casting and mechanical properties of steel, and can significantly improve the yield of ferroalloy, reduce the cost of steelmaking, and its economic...