Silicon-aluminum-calcium alloy as a deoxidizer, can be fully deoxidized, promote desulfurization, with low melting point and fast diffusion characteristics. Silicon aluminum-calcium alloy can be widely used in the process of rapid pre-furnace steel production and off-furnace refining, which can improve the smelting speed and shorten the smelting time, and reduce the effective result of steelmaking cost. Silicon-aluminum-calcium alloy is very convenient when put into use, because it is smokeless and dust-free, tasteless and fluorine-free, and will not cause additional health damage to the operator. And the silicon aluminum-calcium alloy does not absorb moisture, will not powder, the overall stability is better, more easy to preserve.

 2023-07-20   491

Si-Al-Ca Alloy(1) Silicon-calcium-aluminum alloy is a better deoxidizer and desulfurizer in calcium-based alloys. The oxygen in the steel is reduced, and the complex oxides containing calcium, silicon, and aluminum formed at the same time are easy to float from the molten steel, purifying the molten steel, and improving the impact resistance toughness and processing performance of the steel.(2) Performance1. Mainly used for deoxidation, degassing and fixing sulfur of molten steel. The addition of silicon aluminum calcium to molten steel produces a strong exothermic effect. Calcium turns into calcium vapor in molten steel, which has a stirring effect on molten steel and is beneficial to the floating of non-metallic inclusions.2. After the silicon-aluminum-calcium alloy is deoxidized, non-metallic inclusions with large particles and easy to float are produced, and the shape and properties of non-metallic inclusions are also changed. Therefore, silicon-aluminum-calcium alloy is used to produce clean steel, high-quality steel with low oxygen and sulfur content, and special performance steel with extremely low oxygen and sulfur content.3. The addition of silicon-aluminum-calcium alloy can eliminate the problems of nodules in the ladle nozzle of steel using aluminum as the final deoxidizer and clogging of the nozzle of the tundish of continuous casting steel and ironmaking. Silicon calcium manganese deoxidizer(1) Conventional Al-containing deoxidizers include metal aluminum, silicon aluminum iron, silicon aluminum barium, etc., and their prices are generally high. In order to reduce the cost of deoxidizer, our factory has successfully developed silicon calcium manganese deoxidizer. The main function of the deoxidizer is to deoxidize and increase temperature; manganese can increase the manganese content in molten steel and reduce the consumption of silicon-manganese alloy. Therefore, the silicon-calcium-manganese deoxidizer is an ideal composite deoxidizer in the steelmaking industry, which can deoxidize, desulfurize and increase manganese. the(2) Physical and chemical indicators:Si ≥ 20, Ca ≥ 27, Mn ≥ 5, Al ≥ 1.5(3) Performance1. The deoxidizer has good deoxidation and desulfurization effects, which can meet the final deoxidation and desulfurization requirements of ordinary steel, low carbon steel and stainless steel.2. For low-alloy steels such as 16Mn and 20Mnsi, add 1-2Kg/ton of this deoxidizer into the ladle before tapping, which can purify the molten steel well. It has a more significant purification effect on steel types that use aluminum, rare earth deoxidizers, titanium, vanadium, etc. as alloying agents.3. Improve the fluidity of steel slag and prevent nodulation at the tundish nozzle.4. After forming slag, the slag has a low melting point and moderate viscosity, which has a significant protective effect on the film and improves the surface quality of the steel ingot.5. This product can be added to the ladle together with scrap steel, which can reduce the oxidation of molten steel and increase the temperature of molten steel, thereby increasing production. Silicon aluminum alloy deoxidizer(1) Silicon-aluminum alloy deoxidizer is a commonly used deoxidizer, which can give full play to the deoxidation effect of strong deoxidizer. By changing the composition of deoxidized products, we can create more favorable floating conditions for inclusions, thereby improving the fluidity of molten steel and improving the purity of molten steel.(2) Physical and chemical indicators:Si≥15, Al≥30(3) Performance1. The amount of carbon steel Q195 and Q235 tons added is about 1.5KG.2. The deoxidizer has a high density, does not cause deoxidized aluminum floating and slag coating, and can completely sink in molten steel.4. The deoxidizer can not only give full play to the role of strong deoxidation ability, but also create more favorable floating conditions for the precipitation of inclusions by changing the composition of deoxidation products, thereby improving the fluidity of molten steel and the purity of molten steel.

 2023-07-14   588

1. Steel industry Manganese iron powder is an essential oxygen absorber and alloy additive in the steelmaking industry, and it is also a ferro alloy with a large amount. High-quality steel needs deoxidation and desulfurization treatment, and the use of deoxidation desulfurization agent is large, manganese iron powder is cheap, is a cheap deoxidizer and desulfurizer, can remove sulfur and other harmful substances in steel, effectively reduce the content of impurities in steel, improve the quality of steel, reduce the cost of steel.2. Casting industry ferro manganese powder is the inoculant and nodularizer of ductile iron, and can effectively prevent the formation of carbides, promote the precipitation of graphite, shorten the spheroidization time, reduce the content of impurities in molten iron, improve the quality of cast iron, and improve the performance of cast iron. In addition, ferro manganese powder can also reduce the blockage of the smelting furnace water outlet, which is very helpful in extending the life of the smelting furnace.3. Other industries Ferro manganese powder is a reducing agent for low-carbon ferro alloys; It can be used as a suspended phase in the mineral processing industry; Can be used as a coating for welding rods; Used in the electrical industry for the preparation of semiconductor pure manganese; In the chemical industry for the manufacture of manganone and so on.

 2023-05-05   641

Application of metal silicon ball: With the development of science and technology, industry and daily life, the demand for steel is increasing, the quality requirements for steel are getting higher and higher, steel quality is developing in the direction of purification, ultra-purification, and the control of secondary element content is becoming more and more stringent, which is bound to put forward higher requirements for the quality of raw materials such as oxygen absorbers for steel. In the composite deoxidation alloy agent for steelmaking just now, the proportion of CaC2 is unreasonable, which seriously affects the utilization rate of products, increases production costs, pollutes the environment, and is not conducive to improving the economic benefits of enterprises. Compared with silicon metal ball, due to the previous amount of CaC2 of the oxygen absorber, a large amount of calcium carbide slag will be produced, resulting in poor submerged arc of molten steel, poor effect of removing inclusions, and in the use of some steel grades such as billet, it is easy to cause excessive deoxidation, forming solid inclusions with high melting point, thus affecting the waterability of molten steel and the quality of molten steel. Compared with the same metal silicon ball before CaC2 is a highly polluting product, the greater the amount added, the greater the pollution, and because of its higher price, more use also increases the production cost of steelmaking enterprises.Metal silicon ball has good effect, high product utilization rate, low cost of steelmaking oxygen absorber. As a new type of deoxidizer for steelmaking, silicon metal ball can meet the smelting deoxidation needs of different steel types, reduce the amount of strong oxygen absorbers such as calcium silica barium and calcium silica aluminum barium, and reduce the cost of steel production2. About 0 yuan/ton, improve the yield of alloying elements 1. More than 5%, small fluctuation in composition, metal silicon ball not only reduces the cost, but also reduces the pollution to the environment.

 2023-04-21   549

Recently, the Henan Provincial Development and Reform Commission issued the "Notice on Printing and Distributing the" Two High "Project Management Catalog in Henan Province (Revised in 2023)", which clearly stated that electric furnace short process steelmaking projects are no longer listed in the "Two High" catalog. This means that electric furnace steelmaking projects are no longer "one size fits all" with other steel projects in terms of financing, engineering projects, and other construction.No.Product  Name Industry ClassificationIndustry  CodeContentThe first category: coal power, petrochemical, chemical, coal chemical, iron and steel (excluding short-process steelmaking projects and steel rolling processing projects), coking, building materials (non-metallic mineral products, excluding refractory projects), nonferrous (excluding copper, lead and zinc, aluminum, silicon and other non-ferrous metals recycled smelting and primary, recycled non-ferrous metal rolling processing projects) and other 8 industries with an annual comprehensive energy consumption of 50,000 tons of standard coal and above.The second category: the following 19 sub-industries with an annual comprehensive energy consumption of 10,000-50,000 tons of standard coal projects1SteelIronmaking3110Blast furnace pig iron, direct reduced iron, molten reduced iron, pig iron for foundry, sintered iron ore, pelletized iron ore, etcsteelmaking3120Non-alloy steel crude steel, low alloy steel crude steel, alloy steel crude steel

 2023-03-06   617

It is understood that the manufacturers of silicon calcium alloy in Inner Mongolia have started production this week, and the price has not changed much, but the actual transaction price has loosened. The price of Ca28Si60 in the main factory area includes 12300 yuan/ton for cash ex-factory, and the price of Ca30Si60 in the main factory area includes 12500 yuan/ton for cash ex-factory, with individual manufacturers quoting 12900 yuan/ton. The downstream demand is moderate, and the transaction is flat. Recently, calcium metal manufacturers have stated that steel bidding has gradually entered the market, and centralized procurement has been initiated in the downstream. Prices may be increased, and quotations will be suspended today; The price of calcium wire continues to stabilize, with the mainstream price in the calcium wire market of 22000 yuan/ton.Domestic market price performance this week:The ex-factory tax inclusive quotation for calcium silicate cored wire (Ca28si55 ∮ 13mm) in Henan Province is 9500-10200 yuan/ton, while the ex-factory tax inclusive quotation for calcium silicate cored wire (Ca30si58 ∮ 13mm) in Jiangsu Province is 10500-11000 yuan/ton; The ex-factory price including tax for solid pure calcium wire (Ca98% min ∮ 9mm) is 11000-11500 yuan/ton; The ex-factory price of carbon clad wire (C98% ∮ 13mm) in Henan Province, including taxes, is 6200-6700 yuan/ton; The ex-factory price of seamless metal calcium wire (Ca98% min ∮ 10mm) in Henan Province, including tax, is 10000 to 10500 yuan/ton.For calcium silicate cored wire: As of today, the price of raw material calcium silicate has not changed significantly for four consecutive weeks, but the actual transaction price has loosened. The raw material cold rolled strip steel is relatively strong and consolidated, and supported by cost, the market quotation of calcium silicate cored wire remains consistent with that of last week. From the perspective of steel mills, while consuming inventory, they are also watching for changes in calcium silicate cored wires and raw materials; From the perspective of the processing plant, even if demand is slowly released, maintain an optimistic attitude, offer firm, and wait for steel to enter the plant. In the short term, it is expected that the calcium silicate cored wire market will remain stable.For seamless metal calcium wire: Today, individual metal calcium factories have raised their prices, while other factories have suspended their prices. Downstream seamless metal calcium wire prices have not been affected temporarily. Recently, steel mills have entered the market and started bidding, boosting market sentiment, with a slightly positive trading atmosphere; The market is still dominated by long orders, with fewer scattered orders. There is still uncertainty about whether the overall volume of subsequent seamless metal calcium wire transactions will be increased. It is expected that the seamless metal calcium line will remain stable in the short term, and we will continue to follow up the bidding of steel mills and the price changes of raw materials in the future.For solid pure calcium wire: It is understood that the factory quotation for solid pure calcium wire remains stable. There is an increase in the price of metallic calcium but it has not yet affected the solid core calcium wire. The price of raw material cold rolled strip steel has little change, and the overall cost of solid core calcium wire has little change. The steel mills have been bidding in succession, and the market activity has increased. However, the actual transaction situation in the future requires us to continue to follow up the results of the steel bidding.To sum up, the off-season effect of the calcium silicate cored wire market has begun to weaken, with sales gradually recovering, inventory consumption significant, cost support strong, and steel bidding entering the market, resulting in an increase in purchasing willingness. There is pressure on prices to rise and support on prices to fall. It is expected that the market price of calcium silicate cored wire will be mainly subject to consolidation in the short term.

 2023-03-06   389

Country/RegionExport volume in December (ton)Export amount in December (1000 yen)Exports from January to December (tons)Export amount from January to December (1000 yen)the republic of korea144460862517.2850499Thailand55196062368.2893975Indonesia119439961170.075459671Taiwan, China206893380.2132817Singapore--24086127Viet Nam21672921176639the Philippines--85.733528Russia--4010278Mexico2959125762China--4.1822331amount to3611242697028.5552571627

 2023-03-06   538