High carbon ferromanganese is an important alloy material used in the production of stainless steel, alloy steel, etc., which is of great significance for ensuring product quality and sustainable development of enterprises. In order to standardize the production and quality control of high carbon ferromanganese industry, it is necessary to formulate corresponding industry standards. Industry standards play an important guiding role in regulating the production and quality control of enterprises in the industry. High carbon ferromanganese industry industry standards mainly involve the following aspects: 1. Product quality indicators: Industry standards require that the chemical composition, physical properties and organizational structure of high-carbon ferro manganese products must meet the relevant technical requirements. For example, the industry standard requires that the carbon content, manganese content, silicon content and other elements of high-carbon ferro manganese content must be within a certain range, and physical properties such as strength, hardness, wear resistance and so on also need to meet certain standards. 2. Raw material requirements: The quality of high-carbon ferromanganese is affected by raw materials, so industry standards require enterprises to meet certain requirements when selecting raw materials, such as requiring the selection of high-purity manganese ore and coal as raw materials, and carry out corresponding analysis and testing in raw materials. 3. Production process requirements: Industry standards require that the production process of high-carbon ferromanganese must be operated in accordance with certain process requirements, including ore calcination, reduction, washing, slag treatment and other process links. Process requirements not only involve the parameters and control requirements of the operation, but also include the requirements of the equipment, the layout of the production line and so on. 4. Quality control requirements: Industry standards require enterprises to establish and implement a complete quality assurance system to ensure the stability and consistency of product quality. High carbon ferromanganese manufacturers, including incoming inspection of raw materials, process control in the production process, finished product inspection, factory inspection and other aspects of quality control. Therefore, the development of high carbon ferromanganese industry standards and strengthening quality control are important means to ensure the quality of high carbon ferromanganese products and the sustainable development of enterprises. Through the reasonable formulation of industry standards, standardize the production behavior of enterprises; Through strict quality control, ensure the stability and consistency of product quality. These measures are not only of great significance to enterprises, but also play an important role in promoting the healthy development of the entire high-carbon ferromanganese industry and enhancing the overall competitiveness.

 2023-10-16   379

Medium carbon ferromanganese is an iron alloy product, its main components are manganese, iron and carbon. It plays an important role in the steel production process, because it can add the appropriate manganese content, so that the steel has excellent properties such as fatigue resistance, wear resistance and hardness. The following will introduce the production process and processing technology of medium carbon ferromanganese. 1. Production process of medium carbon ferromanganeseThe main raw materials for the preparation of medium carbon ferromanganese are manganese ore and blast furnace pig iron. In general, the manganese content of medium carbon ferromanganese is between 65% and 85%. Starting from the raw material, the production process of medium carbon ferromanganese can be divided into the following steps: Step 1: PretreatManganese ore and pig iron need to be crushed and screened to ensure low impurities and uniform particle size. This helps to improve melting efficiency and yield. Step 2: MeltManganese ore and pig iron are melted by blast furnace or electric furnace to produce alloy liquid steel. In the smelting process, it is also necessary to add an appropriate amount of auxiliary agents such as coke, limestone, silica ash and silicon manganese to accelerate the melting speed and increase the melting temperature. Step 3: PouringAfter the smelting is completed, the alloy liquid molten steel needs to be poured into the mold for cooling to form a solid medium carbon ferromanganese block. The resulting medium carbon ferromanganese blocks are polished and classified to obtain products of different specifications. 2. Processing technology of medium carbon ferromanganeseMedium carbon ferromanganese usually requires some processing processes to make parts and products of different shapes. Step 1: Preparation before processingBefore processing, the surface treatment of medium carbon ferromanganese is required. First, the desired shape and size are obtained by grinding or casting. Then, the mechanical properties, wear resistance and corrosion resistance are improved by heat treatment and surface treatment. Step 2: MachiningMilling, turning, planing, drilling and grinding are mainly used in the processing of medium carbon ferromanganese. In the cutting and drilling process, the cutting rate and feed rate should be appropriately reduced by using the tool or drill to prevent the tool from sticking or the bit from breaking. In the milling and grinding process, the cutting liquid is used to cool the cutting to maintain the stability and surface quality of the cutting. Step 3: Post-processingAfter processing of medium carbon ferromanganese, surface treatment is also required. Common methods include heat treatment, chemical treatment and electroplating treatment. Through these processes, the hardness, corrosion resistance and wear resistance of medium carbon ferromanganese can be improved, and its service life and corresponding mechanical properties can be improved. Summary: The wholesale price of medium carbon ferro manganese is an important ferroalloy product, which plays a huge role in steel production and machining. The process of preparation of carbon ferromanganese requires several steps and process operations, while the process of carbon ferromanganese requires the selection of appropriate processing methods and surface treatment processes.

 2023-10-13   355

Metal silicon powder is an important raw material often used in refractory manufacturing.It has unique characteristics that enable it to provide critical functions and performance for refractory materials. In this article, we will explore the key role of metallic silica powder in refractories and explain its importance in the material manufacturing process. First of all, metallic silicon powder plays a role in strengthening the strength and hardness of the material in the refractory. Due to its fine particle size and high specific surface area, metallic silica powder can fill and strengthen the internal structure of refractory materials. This reinforcement allows the refractory to withstand higher temperatures and pressures, thus extending the service life of the material. Metallic silicon powder can also provide thermal conductivity of refractory materials.Metallic silicon powder has good thermal conductivity and can quickly conduct heat to the entire material. This thermal conductivity allows the refractory to disperse and diffuse heat effectively, thereby protecting the interior of the material from overheating. This is particularly important for refractory materials in some high-temperature working environments. In addition, metallic silicon powder can also improve the chemical stability of refractory materials. Metal silicon powder is not easy to chemically react at high temperatures, which can maintain the stability of refractory materials and prevent adverse reactions with the surrounding environment. This chemical stability can effectively extend the service life of refractories and improve their reliability in various industrial applications. Metallic silica powder plays a crucial role in refractories.It can enhance the strength and hardness of the material, provide thermal conductivity, and enhance the chemical stability of the material. In the refractory manufacturing process, the rational use of metal silicon powder can improve the performance and reliability of the material to meet the needs of different industrial fields.

 2023-10-12   385

65 Silicon carbide according to Q345 steel grade, in 150 tons of converter, 150 tons of ladle furnace smelting situation.The entire smelting process is controlled as follows:(1) converter blowing. Blowing end composition and temperature control.(2) post-deoxidation slag alloying of converter. The order of adding auxiliary materials in the process of steel drawing: starting steel →65 silicon carbide → lime, refining slag → aluminum block → low phosphorus silicon manganese, high carbon ferromanganese, the amount of addition and the composition control after the furnace.(3) refining deoxidation, slag desulfurization process. LF furnace molten steel to station oxygen → controlled bottom blowing argon 200-300NL /min, heating up for 3min→ Adding lime, 65 sic → heating → feeding aluminum wire → heating → alloying → heating → feeding aluminum wire → adjusting aluminum → calcium treatment → soft stirring. 65 Summary of the effect of silicon carbide① Reduce cost (deoxidizer and power consumption). The consumption of steel and aluminum per ton is reduced by 0.42kg, the cost of silicon carbide is removed, and the deoxidation cost is reduced by 4.5 yuan/ton of steel; Due to the good foaming effect of silicon carbide and the LF treatment process, the ladle top slag is fully submerged to the electrode, the arc utilization rate is high, the power consumption is reduced by 5KWH/ ton of steel, the power consumption is reduced by 3 yuan/ton of steel, and the total cost is reduced by 7.5 yuan/ton of steel.② Improve the condition of refining slag. The use of silicon carbide deoxidation can effectively improve the condition of refined slag to the station, provide good conditions for refining white slag quickly, and the desulfurization effect is obvious. The average sulfur content in the final molten steel of the refining furnace is 0.0074%, and the desulfurization efficiency is 88.89%, which is conducive to the improvement of the quality of casting billet.

 2023-10-11   476

1. raw material selectionThe preparation of alloy cored wire requires the selection of high-quality metal materials, commonly used materials are copper, nickel, titanium and other alloys. These materials have good electrical conductivity, corrosion resistance and plasticity, and are suitable for the preparation of high-quality alloy cored wire. 2. the preparation of alloy core-coated wireThe first step in the preparation of the alloy cored wire is to process the metal material into a fine wire and cool it by a radiator. Roll the prepared fine wire into a coil, and inject protective gas between the coils to reduce the possibility of metal oxidation. Put the coil into the furnace and sintering, so that the metal particles are combined into a solid, forming the main body of the alloy cored wire. 3. drawing treatmentThrough continuous drawing and cooling process, the diameter of the prepared alloy core-wire is gradually reduced, while its hardness and strength are enhanced, and its electrical conductivity and corrosion resistance are improved. 4. polishing treatmentThere will be some uneven defects on the surface of the alloy core-wire after drawing treatment, and it needs to be polished to make its surface smooth. 5. Final inspection and packagingThe prepared alloy core-wire needs to be inspected to check whether its size, hardness, strength and electrical conductivity are up to standard. After passing the test, it is classified and packaged to ensure its quality and application effect. In summary, the production process of alloy cored wire includes the selection of raw materials, the preparation of alloy cored wire, drawing and polishing. These links are very critical, need great attention and careful operation, in order to prepare high-quality alloy cored wire, to provide a better choice for applications in various industries.

 2023-10-09   367

Silicon aluminum barium calcium alloy is a good new deoxidizer in steelmaking, and has a good desulfurization and phosphorus capacity. In the refining of alloy steel and alloy, molybdenum is often associated with chromium, nickel, vanadium and other elements, so that the steel has a uniform crystalline structure, improve the strength of steel, elastic limit, wear resistance and impact strength and other properties. It has broad application prospect in steel smelting. Silicon aluminum barium calcium alloy useSilicon calcium barium aluminum is the deoxidizer and desulfurizer in barium alloy, so that the oxygen in steel is reduced to a low level, while the formation of complex oxides containing calcium, barium, silicon and aluminum are easy to float from the liquid steel, pure liquid steel, and improve the impact toughness and processing performance of steel.High efficiency deoxidizer is an auxiliary material for steelmaking. It is suitable for deoxidation of various forms of steelmaking, especially for converter steelmaking deoxidation. It has strong deoxidation and desulphurization effect, can improve the flow performance of molten steel well, and solve the problem of nozzle nodulation. Reduce the gas in steel, reduce the inclusion of liquid steel. Silicon aluminum barium calcium alloy peculiaritySilica-aluminum-barium calcium is a common deoxidizer in steelmaking, which can not only reduce the oxygen content of steel, but also remove sulfur, phosphorus and other impurities in steel, and has the effect of purifying liquid steel and improving steel quality. However, silicon aluminum barium calcium in use also need to pay attention to, if not in accordance with the correct process of operation, not only can not achieve a good deoxidation effect, but also cause certain damage to the quality of steel. Silicon aluminum barium calcium alloy Production technologyThe production process of silicon aluminum barium calcium is also very simple. Silica, bauxite and coke are mixed evenly and melted in the ore furnace to produce silicon aluminum alloy. CaO and coke are then added in batches to promote the formation of silica-calcium-aluminum. Then barium ore and coke are added in batches to promote the formation of silica-aluminum-barium-calcium alloy. Through the reasonable application of silicon aluminum barium calcium, can improve the internal quality of molten steel and improve the fluidity of molten steel, improve the alloy yield, Si-Fe yield increased by 10-15%, and the effect is stable, the dosage of 0.6-1.5kg/ ton steel, general carbon steel after oxygen blowing, oxygen content in molten steel less than 80PPM, increase the dosage, improve the lining, It can also further reduce the oxygen content in the molten steel, while completing the deoxidation, there is a desulfurization capacity of 10-30%. Directly add the package before the steel, generally according to 0.6-1.5kg/ ton steel. Ferro manganese and ferrosilicon are routinely added when 1/4 of the steel is drawn. After the steel is produced, the carbon bonded steel is conventionally added to ferro manganese, the other alloy is not added, and the aluminum and the feed wire and the molten steel in the package only need to be blown and refined with nitrogen;

 2023-10-08   335

Sulfur iron is also known in the industry as sulfur, sulfur agent, the main component of sulfur iron is sulfur, through the screening of high-quality pyrite smelting through electric furnace, is widely used in steelmaking, casting and other metallurgical industry, although sulfur is a harmful element for the metallurgical industry, but if the lack of sulfur in iron and steel, cast iron will also affect the quality, in the case of a certain lack of sulfur should be used Adding sulfur element, in order to make the casting process to achieve a certain characteristic performance, it is necessary to put a certain proportion of sulfur iron in the smelting process, and then put a certain proportion of sulfur iron in the hot metal can effectively improve the inoculation effect. Application field of sulfur ironFerro sulfide has been well used in steelmaking, because molten steel in high temperature environment will lose part of the sulfur, resulting in steel toughness and cutting performance decline, so it is necessary to put a certain amount of ferro sulfide to make up for the loss of part of the sulfur in molten steel, so as to restore its performance. Casting process sulfur iron has the application of promoting the inoculation effect and improving the distribution form of graphite, and putting the proportion of sulfur iron into the hot metal can effectively improve the inoculation effect, promote the number of eutectic pellets, and improve the distribution form of graphite in the casting. The role of sulfur ironAccording to the use characteristics of steel, some steel needs to have a certain sulfur content. The traditional steelmaking production method is to sacrifice the good performance of strong deoxidation and pure purification of high alkalinity refining slag to artificially deteriorate the refining slag in the process of steelmaking, so as to obtain better sulfur enhancement performance. Then, sulfur and iron are added to the slag, and the sulfur enhancement performance of the deteriorating refining slag at this time is used to increase the sulfur content in the liquid steel. The steel produced by this method has high oxygen content and more inclusions. It seriously affects the purity of steel, but can ensure the stability of sulfur content in steel. Since sulfur iron can significantly improve the cutting performance of steel, sulfur is usually added to the production of free-cutting steel such as ceramic steel, silicon steel and gear steel to improve the free-cutting performance of steel, and the amount of sulfur added is 0.08 ~ 0.2%. In order to increase the sulfur content in steel, it is achieved by adding sulfur iron in production. Sulfur iron is a method of pouring sulfur and molten iron into the ingot mold. The disadvantage of this method is that the sulfur yield is low, only about 20%. At the same time, it is easy to produce a large amount of sulfur vapor during the ingot casting process, resulting in environmental pollution.

 2023-09-28   553

The role of silica-aluminum-calcium alloySilicon aluminum calcium has a good deoxidation and purification of steel, silicon aluminum calcium has a variety of deoxidation elements, low melting point, fast diffusion, deoxidation effect is obvious. Calcium also has a good desulphurization effect, and can adsorb inclusions in steel, easy to float out, significantly improve the fluidity of molten steel, played a purification of molten steel, to prevent the problem of water nodulesIn the production process, the product can also be made into silicon aluminum according to the requirements of the manufacturer. Calcium balls, silica-aluminum calcium particles, silica-aluminum calcium powder, etc., reduce pollution, facilitate smelting absorption, improve the operating environment. Advantages of silica-aluminum-calcium alloys: silica-aluminum-calcium alloy deoxidizer is suitable for electric furnace, converter, intermediate frequency furnace smelting, can replace aluminum wire, silica-calcium, silica-aluminum, calcium aluminate, etc. better meet the deoxidation, desulfurization, refining and other operational requirements of molten steel, suitable for smelting HRB235, HRB335, HRB400 and other steel grades. Silica-aluminum-calcium alloy has low melting point and rich alloy components, which can be quickly melted in liquid steel to form a strong reducing atmosphere, which can effectively prevent the oxidation of metal elements and improve the metal recovery rate.Silicon-aluminum-calcium alloy Features:1. Silicon-aluminum-calcium alloy has a variety of deoxidation components, has the characteristics of low melting point, fast diffusion, full deoxidation, promote desulfurization.2. The calcium-based elements in Si-AlCa alloy can effectively spherodize the inclusion of molten steel, change the form of the inclusion, and thus play a role in purifying molten steel.3. Silicon aluminum-calcium alloy is widely used in the process of rapid pre-furnace steel production, refining outside the furnace, which can improve the smelting speed, shorten the smelting time, and reduce the cost of steelmaking.4. Silicon aluminum-calcium alloy can replace 20% of aluminum wire and 30% of silicon calcium wire as final deoxidizer and alloying agent. In the smelting process, tons of steel can save alloy 1-1.5Kg, save power consumption 9-12Kwh, and comprehensive cost savings of 5-8 yuan/ton of steel.5. Silicon-aluminum-calcium alloy is easy to put and smoke-free, dust-free, tasteless, fluoride-free, and does not cause damage to the health of operators.6. Silica-aluminum-calcium alloy does not absorb moisture, does not powder, good stability, easy to preserve.

 2023-09-26   358

The price of 70 ferro silicon in India remained stable this week due to moderate market demand and ample material supply. On September 15, the ex-factory price of ferro silicon in Guwahati was Rs 105,000 / tonne. About 600 tonnes of ferro silicon were traded in the price range of Rs 104,000-105,500 / tonne. The ex-factory price of Bhutan's ferro silicon is Rs 105,300 / ton, down by Rs 700 / ton week on week. Factors supporting price stabilitySupply and demand imbalance: Prices in the Northeast remained stable due to lack of room for negotiation and supply and demand imbalance. There is plenty of supply on the market, but purchases are made only when necessary. Power outages slowed production for several days, but did not stop prices from climbing. Due to poor demand, the price in Bhutan has decreased from the previously announced Rs 106,000 / ton. As a result, producers have been forced to lower their offers. Global market: The mainstream price of 72% grade in China is stable at 6,800-7,000 yuan/ton ($939-967 / ton). In September, the bidding price of ferro silicon in a large steel group in North China was 7,450 yuan/ton ($1,029 / ton), up 120 yuan/ton ($17 / ton) from the previous month, and the market expects the price to rise in the future. In addition, prices have also increased in the future. As September and October are considered the peak of ferrosilicon demand and consumption, its market is likely to expand. The U.S. ferro silicon market has hit a new low, as the material is selling for about $1.02- $1.05 per pound, while factories that want to buy large quantities of ferro silicon are being offered less than $1 per pound.Given the current market conditions, prices are expected to remain slightly range-bound. However, prices could correct further if the gap between supply and demand widens.

 2023-09-21   373

1 Silicon calcium alloy is composed of elements silicon, calcium and iron composite alloy, is a more ideal compound deoxidizer, desulfurization agent. It is widely used in the production of high quality steel, low carbon steel, stainless steel and special alloys such as nickel base alloy and titanium base alloy. It is suitable to be used as a warming agent for converter steelmaking workshop. It can also be used as inoculant of cast iron and additive in ductile iron production. Silicon-calcium alloys have been produced by the electrosilicothermal process since about 1907. 2 UsesBoth calcium and silicon have a strong affinity with oxygen. Calcium, in particular, not only has a strong affinity with oxygen, but also has a strong affinity with sulfur and nitrogen. So calcium-silicon alloy is a kind of ideal compound gel oxygen agent, desulfurization agent. Silicon alloy not only has strong deoxidation ability, deoxidation products are easy to float, easy to discharge, but also can improve the performance of steel, improve the plasticity of steel, impact toughness and fluidity. At present, silicon calcium alloy can replace aluminum for final deoxidation. Applied to high quality steel. Special steel and special alloy production. For example, rail steel, low carbon steel, stainless steel and other steel grades and special alloys such as nickel base alloy and titanium base alloy, can be used as silicon calcium alloy as a deoxidizer. Calcium-silicon alloy is also suitable for use as a warming agent for converter steel workshop, calcium-silicon alloy can also be used as inoculant of cast iron and additive in ductile iron production.

 2023-09-13   337

In the process of modern metallurgy, it is usually necessary to add various solvents and trace alloys to the molten steel, resulting in great waste. In order to improve the efficiency of microalloy and solvent utilization, cored wire was invented. Adding core-cored wire to molten steel with ladle wire feeding device has good metallurgical effect and is a mature technology. There are generally three ways to add alloy core-coated wire powder: 1. Core-coated wire powder is to melt, crush, sift, and then pack into core-coated wire; 2, core-coated wire powder is mixed with powder of different density and different particles by artificial mixing into core-coated wire, but because of different powder specific gravity, it is very difficult to mix evenly; 3. The feeding method of coated wire powder is to use multiple hoppers for feeding. Because the specific gravity of various powders is different, the falling speed will be different, so it is difficult to accurately control the amount of different materials falling in the hopper, especially the uniformity of various powders.The alloy cored wire powder is mixed and filled with high precision online cored wire without component segregation. Core-wire is formed by physical mixing of strip steel and powder of various compositions. Powder of different density and composition is evenly wrapped in core-wire in a certain proportion. The mixing method is: using high-precision belt to mix and combine online weighing, weighing with weighing unit, and then conveying with belt conveying device, and then using strip steel to mix and wrap all kinds of powder with different components and different materials together. The main components of alloy cored wire powder are ferrosilicon and pure magnesium, which are mixed online by high precision belt with certain particle size and proportion. Taking the mixed spheroidization line as an example, the weight of each ball is 210g, of which 70% of ferrosilicon is 147g, and the magnesium particle is 63g. The precision of unit powder of cored wire produced by on-line mixing method is 1.2-1.8%. Alloy cored wire powder does not need to melt a variety of materials can be fused together, through the online mixing method can be different density of a variety of powder in accordance with the process requirements are well mixed together, eliminating the process of melting a variety of materials uniformly fused, which will save a lot of electricity, greatly reduce the emission of harmful substances, greatly reduce labor and labor intensity, It has good economic and social benefits. The alloy core-coated wire has the advantages of uniform core composition, high filling rate, suitable for various industries, effective reduction of production cost and storage time during smelting. The core-coated wire can be more convenient to add metallurgical materials to the molten steel in the steelmaking process of the manufacturer. The method of use is to insert the core-coated wire vertically into the hot metal or molten steel by the manufacturer's wire feeder, and fully melt the metallurgical materials such as the core-coated wire at the ideal depth and produce chemical reactions, effectively avoiding the reaction of the added elements with air and slag, and improving the absorption rate of the metallurgical materials of the manufacturer. The core-coated wire also has the function of refining and precision casting to change inclusions, alloying and purifying molten steel, which plays an important role in improving the quality of cast iron and cast steel, reducing the cost of casting and steelmaking, and improving the economic benefits of cast iron and cast steel.

 2023-09-11   338

Silicon aluminum ball is a kind of spherical particle material with aluminum spines on the surface, which has the characteristics of high temperature resistance, low thermal conductivity and good thermal insulation performance. It has been widely used in thermal insulation annealing in the melting and casting industry, as well as thermal insulation equipment in ceramic, glass, chemical, electric power and other industries. The applicable temperature is 1400℃ ~ 1480℃, and the energy saving rate is more than 13%. It can replace the traditional insulation materials such as rock wool and asbestos, which are highly polluting, and has the effect of improving working conditions and protecting the environment. Aluminum balls contain more than 30% of active metal aluminum and about 25% of metal silicon, which is a high-quality metallurgical auxiliary material used in converter steelmaking and secondary refining. The metal aluminum in the silicon aluminum alloy ball is beneficial to reduce the oxidation of slag and molten steel, and has strong reducibility, long retention time of white slag, good foaming degree, prevent the oxidation of metal alloy elements, improve the alloy recovery rate, the recovery rate of continuous casting, the casting of continuous casting will not cause nodules, can effectively remove non-metallic inclusions in steel, so that the cleanliness of steel is improved. The quality of continuous casting billet and the yield of rolled steel were improved. Silicon-aluminum ball can replace silica-calcium barium and silica-aluminum barium, which play an important role in changing the distribution of debris in steel, refining grains, improving the processing performance of steel and improving the quality of steel. The effect of using silicon aluminum alloy ball is more significant than that of using single alloy such as aluminum block and ferrosilicon alone. It has better economic benefits to improve the alloy recovery rate and reduce the cost of steelmaking.

 2023-09-07   373